Merge pull request #7321 from jepler/dotenv-becomes-toml

Dotenv becomes toml

.gitignore

@@ -9,6 +9,7 @@
 !atmel-samd/asf/**/*.a
 *.elf
 *.bin
+!*.toml.bin
 *.map
 *.hex
 *.dis

devices/ble_hci/common-hal/_bleio/Adapter.c

@@ -49,8 +49,8 @@
 #include "shared-bindings/_bleio/ScanEntry.h"
 #include "shared-bindings/time/__init__.h"
 
-#if CIRCUITPY_DOTENV
+#if CIRCUITPY_OS_GETENV
-#include "shared-module/dotenv/__init__.h"
+#include "shared-bindings/os/__init__.h"
 #endif
 
 #define MSEC_TO_UNITS(TIME, RESOLUTION) (((TIME) * 1000) / (RESOLUTION))
@@ -284,15 +284,15 @@ char default_ble_name[] = { 'C', 'I', 'R', 'C', 'U', 'I', 'T', 'P', 'Y', 0, 0, 0
 STATIC void bleio_adapter_hci_init(bleio_adapter_obj_t *self) {
     mp_int_t name_len = 0;
 
-    #if CIRCUITPY_DOTENV
+    #if CIRCUITPY_OS_GETENV
-    char ble_name[32];
+    mp_obj_t name = common_hal_os_getenv("CIRCUITPY_BLE_NAME", mp_const_none);
-    name_len = dotenv_get_key("/.env", "CIRCUITPY_BLE_NAME", ble_name, sizeof(ble_name) - 1);
+    if (name != mp_const_none) {
-    if (name_len > 0) {
+        mp_arg_validate_type_string(name, MP_QSTR_CIRCUITPY_BLE_NAME);
-        self->name = mp_obj_new_str(ble_name, (size_t)name_len);
+        self->name = name;
     }
     #endif
 
-    if (name_len <= 0) {
+    if (!self->name) {
         name_len = sizeof(default_ble_name);
         bt_addr_t addr;
         hci_check_error(hci_read_bd_addr(&addr));

docs/environment.rst

@@ -6,24 +6,49 @@ variables are commonly used to store "secrets" such as Wi-Fi passwords and API
 keys. This method *does not* make them secure. It only separates them from the
 code.
 
-CircuitPython supports these by mimicking the `dotenv <https://github.com/theskumar/python-dotenv>`_
+CircuitPython uses a file called ``settings.toml`` at the drive root (no
-CPython library. Other languages such as Javascript, PHP and Ruby also have
+folder) as the environment.  User code can access the values from the file
-dotenv libraries.
+using `os.getenv()`. It is recommended to save any values used repeatedly in a
+variable because `os.getenv()` will parse the ``settings.toml`` file contents
+on every access.
 
-These libraries store environment variables in a ``.env`` file. Here is a simple
+CircuitPython only supports a subset of the full toml specification, see below
-example:
+for more details. The subset is very "Python-like", which is a key reason we
+selected the format.
 
-.. code-block:: bash
+Due to technical limitations it probably also accepts some files that are
+not valid TOML files; bugs of this nature are subject to change (i.e., be
+fixed) without the usual deprecation period for incompatible changes.
 
-  KEY1='value1'
+File format example:
-  # Comment
-  KEY2='value2
-  is multiple lines'
 
-CircuitPython uses the ``.env`` at the drive root (no folder) as the environment.
+.. code-block::
-User code can access the values from the file using `os.getenv()`. It is
+
-recommended to save any values used repeatedly in a variable because `os.getenv()`
+   str_key="Hello world" # with trailing comment
-will parse the ``/.env`` on every access.
+   int_key = 7
+   unicode_key="œuvre"
+   unicode_key2="\\u0153uvre" # same as above
+   unicode_key3="\\U00000153uvre" # same as above
+   escape_codes="supported, including \\r\\n\\"\\\\"
+   # comment
+   [subtable]
+   subvalue="cannot retrieve this using getenv"
+
+
+Details of the toml language subset
+-----------------------------------
+
+* The content is required to be in UTF-8 encoding
+* The supported data types are string and integer
+* Only basic strings are supported, not triple-quoted strings
+* Only integers supported by strtol. (no 0o, no 0b, no underscores 1_000, 011
+  is 9, not 11)
+* Only bare keys are supported
+* Duplicate keys are not diagnosed.
+* Comments are supported
+* Only values from the "root table" can be retrieved
+* due to technical limitations, the content of multi-line
+  strings can erroneously be parsed as a value.
 
 CircuitPython behavior
 ----------------------

docs/workflows.md

@@ -46,7 +46,7 @@ connection, the central device can discover two default services. One for file t
 CircuitPython specifically that includes serial characteristics.
 
 To change the default BLE advertising name without (or before) running user code, the desired name
-can be put in the `/.env` file. The key is `CIRCUITPY_BLE_NAME`. It's limited to approximately
+can be put in the `settings.toml` file. The key is `CIRCUITPY_BLE_NAME`. It's limited to approximately
 30 characters depending on the port's settings and will be truncated if longer.
 
 ### File Transfer API
@@ -69,21 +69,21 @@ Read-only characteristic that returns the UTF-8 encoded version string.
 
 ## Web
 
-The web workflow is depends on adding Wi-Fi credentials into the `/.env` file. The keys are
+The web workflow is depends on adding Wi-Fi credentials into the `settings.toml` file. The keys are
 `CIRCUITPY_WIFI_SSID` and `CIRCUITPY_WIFI_PASSWORD`. Once these are defined, CircuitPython will
 automatically connect to the network and start the webserver used for the workflow. The webserver
 is on port 80 unless overridden by `CIRCUITPY_WEB_API_PORT`. It also enables MDNS.
 
-Here is an example `/.env`:
+Here is an example `/settings.toml`:
 
 ```bash
 # To auto-connect to Wi-Fi
-CIRCUITPY_WIFI_SSID='scottswifi'
+CIRCUITPY_WIFI_SSID="scottswifi"
-CIRCUITPY_WIFI_PASSWORD='secretpassword'
+CIRCUITPY_WIFI_PASSWORD="secretpassword"
 
 # To enable modifying files from the web. Change this too!
 # Leave the User field blank in the browser.
-CIRCUITPY_WEB_API_PASSWORD='passw0rd'
+CIRCUITPY_WEB_API_PASSWORD="passw0rd"
 
 CIRCUITPY_WEB_API_PORT=80
 ```
@@ -124,7 +124,7 @@ All file system related APIs are protected by HTTP basic authentication. It is *
 hopefully prevent some griefing in shared settings. The password is sent unencrypted so do not reuse
 a password with something important. The user field is left blank.
 
-The password is taken from `/.env` with the key `CIRCUITPY_WEB_API_PASSWORD`. If this is unset, the
+The password is taken from `settings.toml` with the key `CIRCUITPY_WEB_API_PASSWORD`. If this is unset, the
 server will respond with `403 Forbidden`. When a password is set, but not provided in a request, it
 will respond `401 Unauthorized`.
 

locale/circuitpython.pot

@@ -1002,6 +1002,10 @@ msgstr ""
 msgid "File exists"
 msgstr ""
 
+#: shared-module/os/getenv.c
+msgid "File not found"
+msgstr ""
+
 #: ports/atmel-samd/common-hal/canio/Listener.c
 #: ports/espressif/common-hal/canio/Listener.c
 #: ports/stm/common-hal/canio/Listener.c
@@ -1058,6 +1062,8 @@ msgstr ""
 #: shared-bindings/displayio/Display.c
 #: shared-bindings/displayio/EPaperDisplay.c
 #: shared-bindings/framebufferio/FramebufferDisplay.c
+#: shared-module/displayio/Display.c
+#: shared-module/framebufferio/FramebufferDisplay.c
 msgid "Group already used"
 msgstr ""
 
@@ -1184,6 +1190,7 @@ msgid "Internal define error"
 msgstr ""
 
 #: ports/espressif/common-hal/paralleldisplay/ParallelBus.c
+#: shared-module/os/getenv.c
 msgid "Internal error"
 msgstr ""
 
@@ -1230,6 +1237,11 @@ msgstr ""
 msgid "Invalid bits per value"
 msgstr ""
 
+#: shared-module/os/getenv.c
+#, c-format
+msgid "Invalid byte %.*s"
+msgstr ""
+
 #: ports/atmel-samd/common-hal/imagecapture/ParallelImageCapture.c
 #, c-format
 msgid "Invalid data_pins[%d]"
@@ -1260,10 +1272,18 @@ msgstr ""
 msgid "Invalid state"
 msgstr ""
 
+#: shared-module/os/getenv.c
+msgid "Invalid unicode escape"
+msgstr ""
+
 #: shared-bindings/aesio/aes.c
 msgid "Key must be 16, 24, or 32 bytes long"
 msgstr ""
 
+#: shared-module/os/getenv.c
+msgid "Key not found"
+msgstr ""
+
 #: shared-module/is31fl3741/FrameBuffer.c
 msgid "LED mappings must match display size"
 msgstr ""
@@ -2262,7 +2282,7 @@ msgid "Unkown error code %d"
 msgstr ""
 
 #: shared-bindings/adafruit_pixelbuf/PixelBuf.c
-#: shared-module/adafruit_pixelbuf/PixelMap.c
+#: shared-module/_pixelmap/PixelMap.c
 #, c-format
 msgid "Unmatched number of items on RHS (expected %d, got %d)."
 msgstr ""
@@ -3143,7 +3163,7 @@ msgstr ""
 msgid "index is out of bounds"
 msgstr ""
 
-#: shared-bindings/adafruit_pixelbuf/PixelMap.c
+#: shared-bindings/_pixelmap/PixelMap.c
 msgid "index must be tuple or int"
 msgstr ""
 
@@ -3522,7 +3542,7 @@ msgstr ""
 msgid "negative shift count"
 msgstr ""
 
-#: shared-bindings/adafruit_pixelbuf/PixelMap.c
+#: shared-bindings/_pixelmap/PixelMap.c
 msgid "nested index must be int"
 msgstr ""
 

ports/atmel-samd/mpconfigport.mk

@@ -24,13 +24,13 @@ ifeq ($(CHIP_FAMILY),samd21)
 CIRCUITPY_AESIO ?= 0
 CIRCUITPY_ATEXIT ?= 0
 CIRCUITPY_AUDIOMIXER ?= 0
+CIRCUITPY_AUDIOMP3 ?= 0
 CIRCUITPY_BINASCII ?= 0
 CIRCUITPY_BITBANGIO ?= 0
 CIRCUITPY_BITMAPTOOLS ?= 0
-CIRCUITPY_BUSDEVICE ?= 0
-CIRCUITPY_AUDIOMP3 ?= 0
 CIRCUITPY_BLEIO_HCI = 0
 CIRCUITPY_BUILTINS_POW3 ?= 0
+CIRCUITPY_BUSDEVICE ?= 0
 CIRCUITPY_COMPUTED_GOTO_SAVE_SPACE ?= 1
 CIRCUITPY_COUNTIO ?= 0
 # Not enough RAM for framebuffers
@@ -42,6 +42,7 @@ CIRCUITPY_I2CTARGET ?= 0
 CIRCUITPY_JSON ?= 0
 CIRCUITPY_KEYPAD ?= 0
 CIRCUITPY_MSGPACK ?= 0
+CIRCUITPY_OS_GETENV ?= 0
 CIRCUITPY_PIXELMAP ?= 0
 CIRCUITPY_RE ?= 0
 CIRCUITPY_SDCARDIO ?= 0

ports/cxd56/Makefile

@@ -134,7 +134,8 @@ SRC_COMMON_HAL_EXPANDED = $(addprefix shared-bindings/, $(SRC_COMMON_HAL)) \
                           $(addprefix common-hal/, $(SRC_COMMON_HAL))
 
 SRC_SHARED_MODULE_EXPANDED = $(addprefix shared-bindings/, $(SRC_SHARED_MODULE)) \
-                             $(addprefix shared-module/, $(SRC_SHARED_MODULE))
+                             $(addprefix shared-module/, $(SRC_SHARED_MODULE)) \
+                             $(addprefix shared-module/, $(SRC_SHARED_MODULE_INTERNAL))
 
 SRC_S = supervisor/cpu.s
 

ports/espressif/bindings/esp32_camera/Camera.c

@@ -63,7 +63,7 @@
 //|         """
 //|         Configure and initialize a camera with the given properties
 //|
-//|         This driver requires that the ``CIRCUITPY_RESERVED_PSRAM`` in ``/.env`` be large enough to hold the camera frambuffer(s). Generally, boards with built-in cameras will have a default setting that is large enough. If the constructor raises a MemoryError or an IDFError, this probably indicates the setting is too small and should be increased.
+//|         This driver requires that the ``CIRCUITPY_RESERVED_PSRAM`` in ``settings.toml`` be large enough to hold the camera frambuffer(s). Generally, boards with built-in cameras will have a default setting that is large enough. If the constructor raises a MemoryError or an IDFError, this probably indicates the setting is too small and should be increased.
 //|
 //|
 //|         .. important::

ports/espressif/bindings/espidf/__init__.c

@@ -132,7 +132,7 @@ STATIC mp_obj_t espidf_get_total_psram(void) {
 MP_DEFINE_CONST_FUN_OBJ_0(espidf_get_total_psram_obj, espidf_get_total_psram);
 
 //| def get_reserved_psram() -> int:
-//|     """Returns number of bytes of psram reserved for use by esp-idf, either a board-specific default value or the value defined in ``/.env``."""
+//|     """Returns number of bytes of psram reserved for use by esp-idf, either a board-specific default value or the value defined in ``settings.toml``."""
 //|
 STATIC mp_obj_t espidf_get_reserved_psram(void) {
     return MP_OBJ_NEW_SMALL_INT(common_hal_espidf_get_reserved_psram());

ports/espressif/common-hal/_bleio/Adapter.c

@@ -59,8 +59,8 @@
 #include "esp_bt.h"
 #include "esp_nimble_hci.h"
 
-#if CIRCUITPY_DOTENV
+#if CIRCUITPY_OS_GETENV
-#include "shared-module/dotenv/__init__.h"
+#include "shared-module/os/__init__.h"
 #endif
 
 bleio_connection_internal_t bleio_connections[BLEIO_TOTAL_CONNECTION_COUNT];
@@ -101,22 +101,16 @@ void common_hal_bleio_adapter_set_enabled(bleio_adapter_obj_t *self, bool enable
         ble_hs_cfg.sync_cb = _on_sync;
         // ble_hs_cfg.store_status_cb = ble_store_util_status_rr;
 
-        #if CIRCUITPY_DOTENV
+        #if CIRCUITPY_OS_GETENV
-        mp_int_t name_len = 0;
+        char ble_name[1 + MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME_MAX_LENGTH];
-        char ble_name[32];
+        os_getenv_err_t result = common_hal_os_getenv_str("CIRCUITPY_BLE_NAME", ble_name, sizeof(ble_name));
-        name_len = dotenv_get_key("/.env", "CIRCUITPY_BLE_NAME", ble_name, sizeof(ble_name) - 1);
+        if (result == GETENV_OK) {
-        if (name_len > 0) {
-            if (name_len > MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME_MAX_LENGTH) {
-                name_len = MYNEWT_VAL_BLE_SVC_GAP_DEVICE_NAME_MAX_LENGTH;
-            }
-            ble_name[name_len] = '\0';
             ble_svc_gap_device_name_set(ble_name);
-        } else {
+        } else
+        #endif
+        {
             ble_svc_gap_device_name_set("CIRCUITPY");
         }
-        #else
-        ble_svc_gap_device_name_set("CIRCUITPY");
-        #endif
 
         // Clear all of the internal connection objects.
         for (size_t i = 0; i < BLEIO_TOTAL_CONNECTION_COUNT; i++) {

ports/espressif/supervisor/port.c

@@ -55,7 +55,7 @@
 #include "shared-bindings/microcontroller/RunMode.h"
 #include "shared-bindings/rtc/__init__.h"
 #include "shared-bindings/socketpool/__init__.h"
-#include "shared-module/dotenv/__init__.h"
+#include "shared-module/os/__init__.h"
 
 #include "peripherals/rmt.h"
 #include "peripherals/timer.h"
@@ -519,7 +519,7 @@ void port_idle_until_interrupt(void) {
 void port_post_boot_py(bool heap_valid) {
     if (!heap_valid && filesystem_present()) {
         mp_int_t reserved;
-        if (dotenv_get_key_int("/.env", "CIRCUITPY_RESERVED_PSRAM", &reserved)) {
+        if (common_hal_os_getenv_int("CIRCUITPY_RESERVED_PSRAM", &reserved) == GETENV_OK) {
             common_hal_espidf_set_reserved_psram(reserved);
         }
         common_hal_espidf_reserve_psram();

ports/nrf/common-hal/_bleio/Adapter.c

@@ -52,8 +52,9 @@
 #include "shared-bindings/_bleio/ScanEntry.h"
 #include "shared-bindings/time/__init__.h"
 
-#if CIRCUITPY_DOTENV
+#if CIRCUITPY_OS_GETENV
-#include "shared-module/dotenv/__init__.h"
+#include "shared-bindings/os/__init__.h"
+#include "shared-module/os/__init__.h"
 #endif
 
 #define BLE_MIN_CONN_INTERVAL        MSEC_TO_UNITS(15, UNIT_0_625_MS)
@@ -343,20 +344,17 @@ STATIC void bleio_adapter_reset_name(bleio_adapter_obj_t *self) {
     default_ble_name[len - 1] = nibble_to_hex_lower[addr.addr[0] & 0xf];
     default_ble_name[len] = '\0'; // for now we add null for compatibility with C ASCIIZ strings
 
-    mp_int_t name_len = 0;
+    #if CIRCUITPY_OS_GETENV
-
-    #if CIRCUITPY_DOTENV
     char ble_name[32];
-    name_len = dotenv_get_key("/.env", "CIRCUITPY_BLE_NAME", ble_name, sizeof(ble_name) - 1);
+
-    if (name_len > 0) {
+    os_getenv_err_t result = common_hal_os_getenv_str("CIRCUITPY_BLE_NAME", ble_name, sizeof(ble_name));
-        ble_name[name_len] = '\0';
+    if (result == GETENV_OK) {
-        common_hal_bleio_adapter_set_name(self, (char *)ble_name);
+        common_hal_bleio_adapter_set_name(self, ble_name);
+        return;
     }
     #endif
 
-    if (name_len <= 0) {
+    common_hal_bleio_adapter_set_name(self, (char *)default_ble_name);
-        common_hal_bleio_adapter_set_name(self, (char *)default_ble_name);
-    }
 }
 
 static void bluetooth_adapter_background(void *data) {

ports/raspberrypi/bindings/rp2pio/StateMachine.c

@@ -422,7 +422,7 @@ MP_DEFINE_CONST_FUN_OBJ_KW(rp2pio_statemachine_write_obj, 2, rp2pio_statemachine
 //|     ) -> None:
 //|         """Write data to the TX fifo in the background, with optional looping.
 //|
-//|         First, if any previous ``once`` or ``loop`` buffer has not been started, this function blocks until they have.
+//|         First, if any previous ``once`` or ``loop`` buffer has not been started, this function blocks until they have been started.
 //|         This means that any ``once`` or ``loop`` buffer will be written at least once.
 //|         Then the ``once`` and/or ``loop`` buffers are queued. and the function returns.
 //|         The ``once`` buffer (if specified) will be written just once.

ports/raspberrypi/boards/raspberry_pi_pico_w/mpconfigboard.h

@@ -4,5 +4,7 @@
 #define CIRCUITPY_DIGITALIO_HAVE_INVALID_PULL (1)
 #define CIRCUITPY_DIGITALIO_HAVE_INVALID_DRIVE_MODE (1)
 
+#define MICROPY_HW_LED_STATUS   (&pin_CYW0)
+
 #define CIRCUITPY_BOARD_I2C         (1)
 #define CIRCUITPY_BOARD_I2C_PIN     {{.scl = &pin_GPIO5, .sda = &pin_GPIO4}}

ports/raspberrypi/common-hal/wifi/Radio.c

@@ -206,6 +206,19 @@ void common_hal_wifi_radio_stop_ap(wifi_radio_obj_t *self) {
      */
 }
 
+static bool connection_unchanged(wifi_radio_obj_t *self, const uint8_t *ssid, size_t ssid_len) {
+    if (cyw43_tcpip_link_status(&cyw43_state, CYW43_ITF_STA) != CYW43_LINK_UP) {
+        return false;
+    }
+    if (ssid_len != self->connected_ssid_len) {
+        return false;
+    }
+    if (memcmp(ssid, self->connected_ssid, self->connected_ssid_len)) {
+        return false;
+    }
+    return true;
+}
+
 wifi_radio_error_t common_hal_wifi_radio_connect(wifi_radio_obj_t *self, uint8_t *ssid, size_t ssid_len, uint8_t *password, size_t password_len, uint8_t channel, mp_float_t timeout, uint8_t *bssid, size_t bssid_len) {
     if (!common_hal_wifi_radio_get_enabled(self)) {
         mp_raise_RuntimeError(translate("Wifi is not enabled"));
@@ -215,11 +228,18 @@ wifi_radio_error_t common_hal_wifi_radio_connect(wifi_radio_obj_t *self, uint8_t
         mp_raise_RuntimeError(translate("Wifi is in access point mode."));
     }
 
+    if (ssid_len > 32) {
+        return WIFI_RADIO_ERROR_CONNECTION_FAIL;
+    }
 
     size_t timeout_ms = timeout <= 0 ? 8000 : (size_t)MICROPY_FLOAT_C_FUN(ceil)(timeout * 1000);
     uint64_t start = port_get_raw_ticks(NULL);
     uint64_t deadline = start + timeout_ms;
 
+    if (connection_unchanged(self, ssid, ssid_len)) {
+        return WIFI_RADIO_ERROR_NONE;
+    }
+
     // disconnect
     common_hal_wifi_radio_stop_station(self);
 
@@ -237,6 +257,8 @@ wifi_radio_error_t common_hal_wifi_radio_connect(wifi_radio_obj_t *self, uint8_t
 
         switch (result) {
             case CYW43_LINK_UP:
+                memcpy(self->connected_ssid, ssid, ssid_len);
+                self->connected_ssid_len = ssid_len;
                 bindings_cyw43_wifi_enforce_pm();
                 return WIFI_RADIO_ERROR_NONE;
             case CYW43_LINK_FAIL:

ports/raspberrypi/common-hal/wifi/Radio.h

@@ -35,6 +35,8 @@ typedef struct {
     mp_obj_base_t base;
     char hostname[254]; // hostname max is 253 chars, + 1 for trailing NUL
     wifi_scannednetworks_obj_t *current_scan;
+    uint8_t connected_ssid[32];
+    uint8_t connected_ssid_len;
     bool enabled;
 } wifi_radio_obj_t;
 

ports/raspberrypi/supervisor/port.c

@@ -127,6 +127,13 @@ safe_mode_t port_init(void) {
         (&_ld_dtcm_bss_start)[i] = 0;
     }
 
+    #if CIRCUITPY_CYW43
+    never_reset_pin_number(23);
+    never_reset_pin_number(24);
+    never_reset_pin_number(25);
+    never_reset_pin_number(29);
+    #endif
+
     // Reset everything into a known state before board_init.
     reset_port();
 
@@ -140,10 +147,6 @@ safe_mode_t port_init(void) {
     // Check brownout.
 
     #if CIRCUITPY_CYW43
-    never_reset_pin_number(23);
-    never_reset_pin_number(24);
-    never_reset_pin_number(25);
-    never_reset_pin_number(29);
     // A small number of samples of pico w need an additional delay before
     // initializing the cyw43 chip. Delays inside cyw43_arch_init_with_country
     // are intended to meet the power on timing requirements, but apparently

ports/unix/modos.c

@@ -193,7 +193,12 @@ STATIC mp_obj_t mod_os_system(mp_obj_t cmd_in) {
 }
 MP_DEFINE_CONST_FUN_OBJ_1(mod_os_system_obj, mod_os_system);
 
+mp_obj_t common_hal_os_getenv(const char *key, mp_obj_t default_);
 STATIC mp_obj_t mod_os_getenv(mp_obj_t var_in) {
+    mp_obj_t result = common_hal_os_getenv(mp_obj_str_get_str(var_in), mp_const_none);
+    if (result != mp_const_none) {
+        return result;
+    }
     const char *s = getenv(mp_obj_str_get_str(var_in));
     if (s == NULL) {
         return mp_const_none;

ports/unix/variants/coverage/mpconfigvariant.mk

@@ -33,7 +33,6 @@ SRC_BITMAP := \
 	shared-bindings/aesio/__init__.c \
 	shared-bindings/bitmaptools/__init__.c \
 	shared-bindings/displayio/Bitmap.c \
-	shared-bindings/dotenv/__init__.c \
 	shared-bindings/rainbowio/__init__.c \
 	shared-bindings/traceback/__init__.c \
 	shared-bindings/util.c \
@@ -45,7 +44,7 @@ SRC_BITMAP := \
 	shared-module/displayio/Bitmap.c \
 	shared-module/displayio/ColorConverter.c \
 	shared-module/displayio/ColorConverter.c \
-	shared-module/dotenv/__init__.c \
+	shared-module/os/getenv.c \
 	shared-module/rainbowio/__init__.c \
 	shared-module/traceback/__init__.c \
 	shared-module/zlib/__init__.c \
@@ -56,7 +55,7 @@ CFLAGS += \
 	-DCIRCUITPY_AESIO=1 \
 	-DCIRCUITPY_BITMAPTOOLS=1 \
 	-DCIRCUITPY_DISPLAYIO_UNIX=1 \
-	-DCIRCUITPY_DOTENV=1 \
+	-DCIRCUITPY_OS_GETENV=1 \
 	-DCIRCUITPY_GIFIO=1 \
 	-DCIRCUITPY_RAINBOWIO=1 \
 	-DCIRCUITPY_TRACEBACK=1 \

py/circuitpy_defns.mk

@@ -182,9 +182,6 @@ endif
 ifeq ($(CIRCUITPY_DISPLAYIO),1)
 SRC_PATTERNS += displayio/%
 endif
-ifeq ($(CIRCUITPY_DOTENV),1)
-SRC_PATTERNS += dotenv/%
-endif
 ifeq ($(CIRCUITPY__EVE),1)
 SRC_PATTERNS += _eve/%
 endif
@@ -589,7 +586,6 @@ SRC_SHARED_MODULE_ALL = \
 	displayio/TileGrid.c \
 	displayio/area.c \
 	displayio/__init__.c \
-	dotenv/__init__.c \
 	floppyio/__init__.c \
 	fontio/BuiltinFont.c \
 	fontio/__init__.c \
@@ -718,6 +714,7 @@ endif
 SRC_SHARED_MODULE_INTERNAL = \
 $(filter $(SRC_PATTERNS), \
 	displayio/display_core.c \
+	os/getenv.c \
 	usb/utf16le.c \
 )
 

py/circuitpy_mpconfig.mk

@@ -208,9 +208,6 @@ CFLAGS += -DCIRCUITPY_BITMAPTOOLS=$(CIRCUITPY_BITMAPTOOLS)
 CFLAGS += -DCIRCUITPY_FRAMEBUFFERIO=$(CIRCUITPY_FRAMEBUFFERIO)
 CFLAGS += -DCIRCUITPY_VECTORIO=$(CIRCUITPY_VECTORIO)
 
-CIRCUITPY_DOTENV ?= $(CIRCUITPY_FULL_BUILD)
-CFLAGS += -DCIRCUITPY_DOTENV=$(CIRCUITPY_DOTENV)
-
 CIRCUITPY_DUALBANK ?= 0
 CFLAGS += -DCIRCUITPY_DUALBANK=$(CIRCUITPY_DUALBANK)
 
@@ -218,6 +215,9 @@ CFLAGS += -DCIRCUITPY_DUALBANK=$(CIRCUITPY_DUALBANK)
 CIRCUITPY_ENABLE_MPY_NATIVE ?= 0
 CFLAGS += -DCIRCUITPY_ENABLE_MPY_NATIVE=$(CIRCUITPY_ENABLE_MPY_NATIVE)
 
+CIRCUITPY_OS_GETENV ?= $(CIRCUITPY_FULL_BUILD)
+CFLAGS += -DCIRCUITPY_OS_GETENV=$(CIRCUITPY_OS_GETENV)
+
 CIRCUITPY_ERRNO ?= $(CIRCUITPY_FULL_BUILD)
 CFLAGS += -DCIRCUITPY_ERRNO=$(CIRCUITPY_ERRNO)
 

shared-bindings/dotenv/__init__.c

@@ -1,113 +0,0 @@
-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * SPDX-FileCopyrightText: Copyright (c) 2022 Scott Shawcroft for Adafruit Industries
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include <string.h>
-
-#include "extmod/vfs.h"
-#include "lib/oofatfs/ff.h"
-#include "lib/oofatfs/diskio.h"
-#include "py/mpstate.h"
-#include "py/obj.h"
-#include "py/objstr.h"
-#include "py/runtime.h"
-#include "shared-bindings/dotenv/__init__.h"
-
-//| """Functions to manage environment variables from a .env file.
-//|
-//|    A subset of the CPython `dotenv library <https://saurabh-kumar.com/python-dotenv/>`_. It does
-//|    not support variables or double quotes.
-//|
-//|    Keys and values may be put in single quotes.
-//|    ``\`` and ``'`` are escaped by ``\`` in single quotes. Newlines can occur in quotes for multiline values.
-//|    Comments start with ``#`` and apply for the rest of the line.
-//|    A ``#`` immediately following an ``=`` is part of the value, not the start of a comment,
-//|    and a ``#`` embedded in a value without whitespace will be part of that value.
-//|    This corresponds to how assignments and comments work in most Unix shells.
-//|
-//|
-//|    File format example:
-//|
-//|    .. code-block::
-//|
-//|        key=value
-//|          key2 = value2
-//|        'key3' = 'value with spaces'
-//|        # comment
-//|        key4 = value3 # comment 2
-//|        'key5'=value4
-//|        key=value5 # overrides the first one
-//|        multiline = 'hello
-//|        world
-//|        how are you?'
-//|        # The #'s below will be included in the value. They do not start a comment.
-//|        key6=#value
-//|        key7=abc#def
-//|
-//| """
-//|
-//| import typing
-//|
-
-//| def get_key(dotenv_path: str, key_to_get: str) -> Optional[str]:
-//|     """Get the value for the given key from the given .env file. If the key occurs multiple
-//|     times in the file, then the last value will be returned.
-//|
-//|     Returns None if the key isn't found or doesn't have a value."""
-//|     ...
-//|
-STATIC mp_obj_t _dotenv_get_key(mp_obj_t path_in, mp_obj_t key_to_get_in) {
-    return common_hal_dotenv_get_key(mp_obj_str_get_str(path_in),
-        mp_obj_str_get_str(key_to_get_in));
-}
-MP_DEFINE_CONST_FUN_OBJ_2(dotenv_get_key_obj, _dotenv_get_key);
-
-//| def load_dotenv() -> None:
-//|     """Does nothing in CircuitPython because os.getenv will automatically read .env when
-//|     available.
-//|
-//|     Present in CircuitPython so CPython-compatible code can use it without error."""
-//|     ...
-//|
-STATIC mp_obj_t dotenv_load_dotenv(void) {
-    return mp_const_none;
-}
-MP_DEFINE_CONST_FUN_OBJ_0(dotenv_load_dotenv_obj, dotenv_load_dotenv);
-
-STATIC const mp_rom_map_elem_t dotenv_module_globals_table[] = {
-    { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_dotenv) },
-
-    { MP_ROM_QSTR(MP_QSTR_get_key), MP_ROM_PTR(&dotenv_get_key_obj) },
-    { MP_ROM_QSTR(MP_QSTR_load_dotenv), MP_ROM_PTR(&dotenv_load_dotenv_obj) },
-};
-
-STATIC MP_DEFINE_CONST_DICT(dotenv_module_globals, dotenv_module_globals_table);
-
-const mp_obj_module_t dotenv_module = {
-    .base = { &mp_type_module },
-    .globals = (mp_obj_dict_t *)&dotenv_module_globals,
-};
-
-MP_REGISTER_MODULE(MP_QSTR_dotenv, dotenv_module, CIRCUITPY_DOTENV);

shared-bindings/dotenv/__init__.h

@@ -1,39 +0,0 @@
-/*
- * This file is part of the MicroPython project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2022 Scott Shawcroft for Adafruit Industries
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#ifndef MICROPY_INCLUDED_SHARED_BINDINGS_DOTENV___INIT___H
-#define MICROPY_INCLUDED_SHARED_BINDINGS_DOTENV___INIT___H
-
-#include <stdint.h>
-#include <stdbool.h>
-
-#include "py/objtuple.h"
-
-#include "shared-module/dotenv/__init__.h"
-
-mp_obj_t common_hal_dotenv_get_key(const char *path, const char *key);
-
-#endif  // MICROPY_INCLUDED_SHARED_BINDINGS_DOTENV___INIT___H

shared-bindings/os/__init__.c

@@ -92,6 +92,7 @@ MP_DEFINE_CONST_FUN_OBJ_0(os_getcwd_obj, os_getcwd);
 //|     ...
 //|
 STATIC mp_obj_t os_getenv(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
+    #if CIRCUITPY_OS_GETENV
     enum { ARG_key, ARG_default };
     static const mp_arg_t allowed_args[] = {
         { MP_QSTR_key, MP_ARG_REQUIRED | MP_ARG_OBJ },
@@ -101,6 +102,9 @@ STATIC mp_obj_t os_getenv(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_
     mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
 
     return common_hal_os_getenv(mp_obj_str_get_str(args[ARG_key].u_obj), args[ARG_default].u_obj);
+    #else
+    return mp_const_none;
+    #endif
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_KW(os_getenv_obj, 1, os_getenv);
 

shared-bindings/os/__init__.h

@@ -38,6 +38,8 @@ mp_obj_t common_hal_os_uname(void);
 void common_hal_os_chdir(const char *path);
 mp_obj_t common_hal_os_getcwd(void);
 mp_obj_t common_hal_os_getenv(const char *key, mp_obj_t default_);
+mp_obj_t common_hal_os_getenv_path(const char *path, const char *key, mp_obj_t default_);
+
 mp_obj_t common_hal_os_listdir(const char *path);
 void common_hal_os_mkdir(const char *path);
 void common_hal_os_remove(const char *path);

shared-module/dotenv/__init__.c

@@ -1,312 +0,0 @@
-/*
- * This file is part of the Micro Python project, http://micropython.org/
- *
- * The MIT License (MIT)
- *
- * SPDX-FileCopyrightText: Copyright (c) 2022 Scott Shawcroft for Adafruit Industries
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "shared-bindings/dotenv/__init__.h"
-
-#include "py/misc.h"
-#include "py/mpstate.h"
-#include "py/objstr.h"
-#include "supervisor/filesystem.h"
-
-#if defined(UNIX)
-typedef FILE *file_arg;
-STATIC bool open_file(const char *name, file_arg *active_file) {
-    FILE *result = fopen(name, "r");
-    if (result) {
-        *active_file = result;
-    }
-    return result != NULL;
-}
-STATIC void close_file(file_arg *active_file) {
-    fclose(*active_file);
-}
-STATIC uint8_t get_next_character(file_arg *active_file) {
-    int value = fgetc(*active_file);
-    if (value == EOF) {
-        return 0;
-    }
-    return value;
-}
-STATIC void seek_minus_one(file_arg *active_file) {
-    fseek(*active_file, -1, SEEK_CUR);
-}
-#else
-#include "extmod/vfs.h"
-#include "extmod/vfs_fat.h"
-typedef FIL file_arg;
-STATIC bool open_file(const char *name, file_arg *active_file) {
-    FATFS *fs = filesystem_circuitpy();
-    FRESULT result = f_open(fs, active_file, name, FA_READ);
-    return result == FR_OK;
-}
-STATIC void close_file(file_arg *active_file) {
-    // nothing
-}
-
-// Return 0 if there is no next character (EOF).
-STATIC uint8_t get_next_character(FIL *active_file) {
-    uint8_t character = 0;
-    UINT quantity_read;
-    // If there's an error or quantity_read is 0, character will remain 0.
-    f_read(active_file, &character, 1, &quantity_read);
-    return character;
-}
-STATIC void seek_minus_one(file_arg *active_file) {
-    f_lseek(active_file, f_tell(active_file) - 1);
-}
-#endif
-
-// Discard whitespace, except for newlines, returning the next character after the whitespace.
-// Return 0 if there is no next character (EOF).
-STATIC uint8_t consume_whitespace(file_arg *active_file) {
-    uint8_t character;
-    do {
-        character = get_next_character(active_file);
-    } while (character != '\n' && character != 0 && unichar_isspace(character));
-    return character;
-}
-
-// Starting at the start of a new line, determines if the key matches the given
-// key. File pointer is set to be just before the = after the key.
-STATIC bool key_matches(file_arg *active_file, const char *key) {
-    uint8_t character;
-    character = consume_whitespace(active_file);
-    if (character == 0) {
-        return false;
-    }
-    bool quoted = false;
-    if (character == '\'') {
-        // Beginning of single-quoted string.
-        quoted = true;
-        character = get_next_character(active_file);
-    }
-    size_t key_pos = 0;
-    bool escaped = false;
-    bool matches = true;
-    size_t key_len = strlen(key);
-    while (character != 0) {
-        if (character == '\\' && !escaped && quoted) {
-            escaped = true;
-        } else if (!escaped && quoted && character == '\'') {
-            quoted = false;
-            // End of quoted key. Skip over the ending quote.
-            character = get_next_character(active_file);
-            break;
-        } else if (!quoted && (unichar_isspace(character) || character == '=' || character == '\n' || character == '#' || character == 0)) {
-            // End of unquoted key.
-            break;
-        } else {
-            // Still on tentative key; see if it matches the next supplied key character,
-            // but don't run off the end of the supplied key.
-            if (key_pos < key_len) {
-                matches = matches && (unsigned char)key[key_pos] == character;
-                escaped = false;
-                key_pos++;
-            } else {
-                // Key on line is too long.
-                matches = false;
-            }
-        }
-        character = get_next_character(active_file);
-    }
-    if (character == '=' || character == '\n' || character == '#' || character == 0) {
-        // Rewind one so the value, if any, can be found.
-        seek_minus_one(active_file);
-    } else if (!unichar_isspace(character)) {
-        // We're followed by something else that is invalid syntax.
-        matches = false;
-    }
-
-    return matches && key_pos == key_len;
-}
-
-STATIC bool next_line(file_arg *active_file) {
-    uint8_t character;
-    bool quoted = false;
-    bool escaped = false;
-    // Track comments because they last until the end of the line.
-    bool comment = false;
-    // Consume all characters while quoted or others up to \n.
-    do {
-        character = get_next_character(active_file);
-
-        if ((!quoted || character == '#') || comment) {
-            // Comments consume any escaping.
-            comment = true;
-        } else if (!escaped) {
-            if (character == '\'') {
-                quoted = !quoted;
-            } else if (character == '\\') {
-                escaped = true;
-            }
-        } else {
-            escaped = false;
-        }
-    } while (character != 0 && (quoted || character != '\n'));
-
-    return character != 0;
-}
-
-STATIC mp_int_t read_value(file_arg *active_file, char *value, size_t value_len) {
-    uint8_t character;
-    // Consume spaces before "=", and get first character of interest.
-    character = consume_whitespace(active_file);
-    if (character != '=') {
-        if (character == '#' || character == '\n') {
-            // Keys without an = after them are valid with the value None.
-            return -1;
-        }
-        // All other characters are invalid.
-        return -1;
-    }
-    // Consume space after =
-    if (character != '#') {
-        // a # immediately after = is part of the value!
-        character = consume_whitespace(active_file);
-    }
-    bool quoted = false;
-    if (character == '\'') {
-        quoted = true;
-        character = get_next_character(active_file);
-    }
-    if (character == '"') {
-        // We don't support double quoted values.
-        return -1;
-    }
-    // Copy the value over.
-    size_t value_pos = 0;
-    bool escaped = false;
-    // Count trailing spaces so we can ignore them at the end of unquoted
-    // values.
-    size_t trailing_spaces = 0;
-    bool first_char = true;
-    while (character != 0) {
-        // Consume the first \ if the value is quoted.
-        if (quoted && character == '\\' && !escaped) {
-            escaped = true;
-            // Drop this backslash by short circuiting the rest of the loop.
-            character = get_next_character(active_file);
-            continue;
-        }
-        if (quoted && !escaped && character == '\'') {
-            // trailing ' means the value is done.
-            break;
-        }
-        // Unquoted values are ended by a newline or comment.
-        if (!quoted && (character == '\n' || (character == '#' && !first_char))) {
-            if (character == '\n') {
-                // Rewind one so the next_line can find the \n.
-                seek_minus_one(active_file);
-            }
-            break;
-        }
-        if (!quoted && unichar_isspace(character)) {
-            trailing_spaces += 1;
-        } else {
-            trailing_spaces = 0;
-        }
-        escaped = false;
-        // Only copy the value over if we have space. Otherwise, we'll just
-        // count the overall length.
-        if (value_pos < value_len) {
-            value[value_pos] = character;
-        }
-        value_pos++;
-        character = get_next_character(active_file);
-        first_char = false;
-    }
-
-    return value_pos - trailing_spaces;
-}
-
-mp_int_t dotenv_get_key(const char *path, const char *key, char *value, mp_int_t value_len) {
-    file_arg active_file;
-    if (!open_file(path, &active_file)) {
-        return -1;
-    }
-
-    mp_int_t actual_value_len = -1;
-    bool read_ok = true;
-    while (read_ok) {
-        if (key_matches(&active_file, key)) {
-            actual_value_len = read_value(&active_file, value, value_len);
-        }
-
-        read_ok = next_line(&active_file);
-    }
-    close_file(&active_file);
-    return actual_value_len;
-}
-
-mp_obj_t common_hal_dotenv_get_key(const char *path, const char *key) {
-    // Use the stack for short values. Longer values will require a heap allocation after we know
-    // the length.
-    char value[64];
-    mp_int_t actual_len = dotenv_get_key(path, key, value, sizeof(value));
-    if (actual_len < 0) {
-        return mp_const_none;
-    }
-    if ((size_t)actual_len >= sizeof(value)) {
-        byte *buf = m_new(byte, actual_len + 1);
-        dotenv_get_key(path, key, (char *)buf, actual_len);
-        buf[actual_len] = 0;
-
-        mp_obj_str_t *o = m_new_obj(mp_obj_str_t);
-        o->base.type = &mp_type_str;
-        o->len = actual_len;
-        o->data = buf;
-        o->hash = qstr_compute_hash(buf, actual_len);
-
-        return MP_OBJ_FROM_PTR(o);
-    }
-    return mp_obj_new_str(value, actual_len);
-}
-
-bool dotenv_get_key_terminated(const char *path, const char *key, char *value, mp_int_t value_len) {
-    mp_int_t actual_len = dotenv_get_key(path, key, value, value_len - 1);
-    if (actual_len >= value_len) {
-        return false;
-    }
-    value[actual_len] = '\0'; // terminate string
-    return true;
-}
-
-bool dotenv_get_key_int(const char *path, const char *key, mp_int_t *value) {
-    char buf[16];
-    if (!dotenv_get_key_terminated(path, key, buf, (mp_int_t)sizeof(buf))) {
-        return false;
-    }
-    char *end;
-    long result = strtol(buf, &end, 0);
-    if (end == buf || *end) { // If the whole buffer was not consumed it's an error
-        return false;
-    }
-    *value = (mp_int_t)result;
-    return true;
-}

shared-module/os/__init__.c

@@ -36,10 +36,6 @@
 #include "py/runtime.h"
 #include "shared-bindings/os/__init__.h"
 
-#if CIRCUITPY_DOTENV
-#include "shared-bindings/dotenv/__init__.h"
-#endif
-
 // This provides all VFS related OS functions so that ports can share the code
 // as needed. It does not provide uname.
 
@@ -111,16 +107,6 @@ mp_obj_t common_hal_os_getcwd(void) {
     return mp_vfs_getcwd();
 }
 
-mp_obj_t common_hal_os_getenv(const char *key, mp_obj_t default_) {
-    #if CIRCUITPY_DOTENV
-    mp_obj_t env_obj = common_hal_dotenv_get_key("/.env", key);
-    if (env_obj != mp_const_none) {
-        return env_obj;
-    }
-    #endif
-    return default_;
-}
-
 mp_obj_t common_hal_os_listdir(const char *path) {
     mp_obj_t path_out;
     mp_vfs_mount_t *vfs = lookup_dir_path(path, &path_out);

shared-module/os/__init__.h

@@ -24,13 +24,23 @@
  * THE SOFTWARE.
  */
 
+#pragma once
+
+typedef enum {
+    GETENV_OK = 0,
+    GETENV_ERR_OPEN,
+    GETENV_ERR_UNICODE,
+    GETENV_ERR_LENGTH,
+    GETENV_ERR_NOT_FOUND,
+    GETENV_ERR_UNEXPECTED = 0xff00, // logical or'd with the byte value
+} os_getenv_err_t;
+
 // Allocation free version that returns the full length of the value.
-mp_int_t dotenv_get_key(const char *path, const char *key, char *value, mp_int_t value_len);
+// If it fits, the return value is 0-terminated. The passed in buffer
+// may be modified even if an error is returned.  Allocation free.
+os_getenv_err_t common_hal_os_getenv_str(const char *key, char *value, size_t value_len);
 
-// Returns true and sets value to a '\0'-terminated string if key is present
+// Returns GETENV_OK and sets value to the read value.  Returns
-// and the value (including the terminating '\0') fits strictly within
+// GETENV_ERR_... if the value was not numeric. allocation-free.
-// value_len bytes.
+// If any error code is returned, value is guaranteed not modified
-bool dotenv_get_key_terminated(const char *path, const char *key, char *value, mp_int_t value_len);
+os_getenv_err_t common_hal_os_getenv_int(const char *key, mp_int_t *value);
-
-// Returns true and sets value to the read value.  Returns false if the value was not numeric.
-bool dotenv_get_key_int(const char *path, const char *key, mp_int_t *value);

shared-module/os/getenv.c

@@ -0,0 +1,391 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2022 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+// These functions are separate from __init__.c so that os.getenv() can be
+// tested in the unix "coverage" build, without bringing in "our" os module
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "shared-bindings/os/__init__.h"
+#include "shared-module/os/__init__.h"
+
+#include "py/gc.h"
+#include "py/misc.h"
+#include "py/mpstate.h"
+#include "py/objstr.h"
+#include "py/parsenum.h"
+#include "py/runtime.h"
+#include "supervisor/filesystem.h"
+#include "supervisor/memory.h"
+
+#define GETENV_PATH "/settings.toml"
+
+#include "extmod/vfs.h"
+#include "extmod/vfs_fat.h"
+typedef FIL file_arg;
+STATIC bool open_file(const char *name, file_arg *active_file) {
+    #if defined(UNIX)
+    nlr_buf_t nlr;
+    if (nlr_push(&nlr) == 0) {
+        mp_obj_t file_obj = mp_call_function_2(MP_OBJ_FROM_PTR(&mp_builtin_open_obj), mp_obj_new_str(name, strlen(name)), MP_ROM_QSTR(MP_QSTR_rb));
+        mp_arg_validate_type(file_obj, &mp_type_vfs_fat_fileio, MP_QSTR_file);
+        pyb_file_obj_t *file = MP_OBJ_TO_PTR(file_obj);
+        *active_file = file->fp;
+        nlr_pop();
+        return true;
+    } else {
+        return false;
+    }
+    #else
+    FATFS *fs = filesystem_circuitpy();
+    FRESULT result = f_open(fs, active_file, name, FA_READ);
+    return result == FR_OK;
+    #endif
+}
+STATIC void close_file(file_arg *active_file) {
+    // nothing
+}
+STATIC bool is_eof(file_arg *active_file) {
+    return f_eof(active_file);
+}
+
+// Return 0 if there is no next character (EOF).
+STATIC uint8_t get_next_byte(FIL *active_file) {
+    uint8_t character = 0;
+    UINT quantity_read;
+    // If there's an error or quantity_read is 0, character will remain 0.
+    f_read(active_file, &character, 1, &quantity_read);
+    return character;
+}
+STATIC void seek_eof(file_arg *active_file) {
+    f_lseek(active_file, f_size(active_file));
+}
+
+// For a fixed buffer, record the required size rather than throwing
+STATIC void vstr_add_byte_nonstd(vstr_t *vstr, byte b) {
+    if (!vstr->fixed_buf || vstr->alloc > vstr->len) {
+        vstr_add_byte(vstr, b);
+    } else {
+        vstr->len++;
+    }
+}
+
+// For a fixed buffer, record the required size rather than throwing
+STATIC void vstr_add_char_nonstd(vstr_t *vstr, unichar c) {
+    size_t ulen =
+        (c < 0x80) ? 1 :
+        (c < 0x800) ? 2 :
+        (c < 0x10000) ? 3 : 4;
+    if (!vstr->fixed_buf || vstr->alloc > vstr->len + ulen) {
+        vstr_add_char(vstr, c);
+    } else {
+        vstr->len += ulen;
+    }
+}
+
+STATIC void next_line(file_arg *active_file) {
+    uint8_t character;
+    do {
+        character = get_next_byte(active_file);
+    } while (character != 0 && character != '\n');
+}
+
+// Discard whitespace, except for newlines, returning the next character after the whitespace.
+// Return 0 if there is no next character (EOF).
+STATIC uint8_t consume_whitespace(file_arg *active_file) {
+    uint8_t character;
+    do {
+        character = get_next_byte(active_file);
+    } while (character != '\n' && character != 0 && unichar_isspace(character));
+    return character;
+}
+
+// Starting at the start of a new line, determines if the key matches the given
+// key.
+//
+// If result is true, the key matches and file pointer is pointing just after the "=".
+// If the result is false, the key does NOT match and the file pointer is
+// pointing at the start of the next line, if any
+STATIC bool key_matches(file_arg *active_file, const char *key) {
+    uint8_t character;
+    character = consume_whitespace(active_file);
+    if (character == '[' || character == 0) {
+        seek_eof(active_file);
+        return false;
+    }
+    while (*key) {
+        if (character != *key++) {
+            // A character didn't match the key, so it's not a match
+            // If the non-matching char was not the end of the line,
+            // then consume the rest of the line
+            if (character != '\n') {
+                next_line(active_file);
+            }
+            return false;
+        }
+        character = get_next_byte(active_file);
+    }
+    // the next character could be whitespace; consume if necessary
+    if (unichar_isspace(character)) {
+        character = consume_whitespace(active_file);
+    }
+    // If we're not looking at the "=" then the key didn't match
+    if (character != '=') {
+        // A character didn't match the key, so it's not a match
+        // If the non-matching char was not the end of the line,
+        // then consume the rest of the line
+        if (character != '\n') {
+            next_line(active_file);
+        }
+        return false;
+    }
+    return true;
+}
+
+STATIC os_getenv_err_t read_unicode_escape(file_arg *active_file, int sz, vstr_t *buf) {
+    char hex_buf[sz + 1];
+    for (int i = 0; i < sz; i++) {
+        hex_buf[i] = get_next_byte(active_file);
+    }
+    hex_buf[sz] = 0;
+    char *end;
+    unsigned long c = strtoul(hex_buf, &end, 16);
+    if (end != &hex_buf[sz]) {
+        return GETENV_ERR_UNEXPECTED | *end;
+    }
+    if (c >= 0x110000) {
+        return GETENV_ERR_UNICODE;
+    }
+    vstr_add_char_nonstd(buf, c);
+    return GETENV_OK;
+}
+
+// Read a quoted string
+STATIC os_getenv_err_t read_string_value(file_arg *active_file, vstr_t *buf) {
+    while (true) {
+        int character = get_next_byte(active_file);
+        switch (character) {
+            case 0:
+            case '\n':
+                return GETENV_ERR_UNEXPECTED | character;
+
+            case '"':
+                character = consume_whitespace(active_file);
+                switch (character) {
+                    case '#':
+                        next_line(active_file);
+                        MP_FALLTHROUGH;
+                    case '\n':
+                        return GETENV_OK;
+                    default:
+                        return GETENV_ERR_UNEXPECTED | character;
+                }
+
+            case '\\':
+                character = get_next_byte(active_file);
+                switch (character) {
+                    case 0:
+                    case '\n':
+                        return GETENV_ERR_UNEXPECTED | character;
+                    case 'b':
+                        character = '\b';
+                        break;
+                    case 'r':
+                        character = '\r';
+                        break;
+                    case 'n':
+                        character = '\n';
+                        break;
+                    case 't':
+                        character = '\t';
+                        break;
+                    case 'v':
+                        character = '\v';
+                        break;
+                    case 'f':
+                        character = '\f';
+                        break;
+                    case 'U':
+                    case 'u': {
+                        int sz = (character == 'u') ? 4 : 8;
+                        os_getenv_err_t res;
+                        res = read_unicode_escape(active_file, sz, buf);
+                        if (res != GETENV_OK) {
+                            return res;
+                        }
+                        continue;
+                    }
+                        // default falls through, other escaped characters
+                        // represent themselves
+                }
+                MP_FALLTHROUGH;
+            default:
+                vstr_add_byte_nonstd(buf, character);
+        }
+    }
+}
+
+// Read a numeric value (non-quoted value) as a string
+STATIC os_getenv_err_t read_bare_value(file_arg *active_file, vstr_t *buf, int first_character) {
+    int character = first_character;
+    while (true) {
+        switch (character) {
+            case 0:
+                return GETENV_ERR_UNEXPECTED | character;
+            case '\n':
+                return GETENV_OK;
+            case '#':
+                next_line(active_file);
+                return GETENV_OK;
+            default:
+                vstr_add_byte_nonstd(buf, character);
+        }
+        character = get_next_byte(active_file);
+    }
+}
+
+STATIC mp_int_t read_value(file_arg *active_file, vstr_t *buf, bool *quoted) {
+    uint8_t character;
+    character = consume_whitespace(active_file);
+    *quoted = (character == '"');
+
+    if (*quoted) {
+        return read_string_value(active_file, buf);
+    } else {
+        return read_bare_value(active_file, buf, character);
+    }
+}
+
+STATIC os_getenv_err_t os_getenv_vstr(const char *path, const char *key, vstr_t *buf, bool *quoted) {
+    file_arg active_file;
+    if (!open_file(path, &active_file)) {
+        return GETENV_ERR_OPEN;
+    }
+
+    os_getenv_err_t result = GETENV_ERR_NOT_FOUND;
+    while (!is_eof(&active_file)) {
+        if (key_matches(&active_file, key)) {
+            result = read_value(&active_file, buf, quoted);
+        }
+    }
+    close_file(&active_file);
+    return result;
+}
+
+STATIC os_getenv_err_t os_getenv_buf_terminated(const char *key, char *value, size_t value_len, bool *quoted) {
+    vstr_t buf;
+    vstr_init_fixed_buf(&buf, value_len, value);
+    os_getenv_err_t result = os_getenv_vstr(GETENV_PATH, key, &buf, quoted);
+
+    if (result == GETENV_OK) {
+        vstr_add_byte_nonstd(&buf, 0);
+        memcpy(value, buf.buf, MIN(buf.len, value_len));
+        if (buf.len > value_len) { // this length includes trailing NUL
+            result = GETENV_ERR_LENGTH;
+        }
+    }
+    return result;
+}
+
+os_getenv_err_t common_hal_os_getenv_str(const char *key, char *value, size_t value_len) {
+    bool quoted;
+    os_getenv_err_t result = os_getenv_buf_terminated(key, value, value_len, &quoted);
+    if (result == GETENV_OK && !quoted) {
+        result = GETENV_ERR_UNEXPECTED | value[0];
+    }
+    return result;
+}
+
+STATIC void throw_getenv_error(os_getenv_err_t error) {
+    if (error == GETENV_OK) {
+        return;
+    }
+    if (error & GETENV_ERR_UNEXPECTED) {
+        byte character = (error & 0xff);
+        mp_print_t print;
+        vstr_t vstr;
+        vstr_init_print(&vstr, 8 + 4 + 1, &print);
+        if (character) {
+            mp_str_print_quoted(&print, &character, 1, true);
+        } else {
+            mp_str_print_quoted(&print, (byte *)"EOF", 3, true);
+        }
+        mp_raise_ValueError_varg(translate("Invalid byte %.*s"),
+            vstr.len, vstr.buf);
+    }
+    switch (error) {
+        case GETENV_ERR_OPEN:
+            mp_raise_ValueError(translate("File not found"));
+        case GETENV_ERR_UNICODE:
+            mp_raise_ValueError(translate("Invalid unicode escape"));
+        case GETENV_ERR_NOT_FOUND:
+            mp_raise_ValueError(translate("Key not found"));
+        default:
+            mp_raise_RuntimeError(translate("Internal error"));
+    }
+}
+
+mp_obj_t common_hal_os_getenv_path(const char *path, const char *key, mp_obj_t default_) {
+    vstr_t buf;
+    bool quoted;
+
+    vstr_init(&buf, 64);
+    os_getenv_err_t result = os_getenv_vstr(path, key, &buf, &quoted);
+    if (result == GETENV_ERR_NOT_FOUND || result == GETENV_ERR_OPEN) {
+        return default_;
+    }
+    throw_getenv_error(result);
+
+    if (quoted) {
+        return mp_obj_new_str_from_vstr(&mp_type_str, &buf);
+    } else {
+        return mp_parse_num_integer(buf.buf, buf.len, 0, NULL);
+    }
+}
+
+mp_obj_t common_hal_os_getenv(const char *key, mp_obj_t default_) {
+    return common_hal_os_getenv_path(GETENV_PATH, key, default_);
+}
+
+os_getenv_err_t common_hal_os_getenv_int(const char *key, mp_int_t *value) {
+    char buf[16];
+    bool quoted;
+    os_getenv_err_t result = os_getenv_buf_terminated(key, buf, sizeof(buf), &quoted);
+    if (result != GETENV_OK) {
+        return result;
+    }
+    if (quoted) {
+        return GETENV_ERR_UNEXPECTED | '"';
+    }
+    char *end;
+    long num = strtol(buf, &end, 0);
+    if (end == buf || *end) { // If the whole buffer was not consumed it's an error
+        return GETENV_ERR_UNEXPECTED | *end;
+    }
+    *value = (mp_int_t)num;
+    return GETENV_OK;
+}

supervisor/shared/filesystem.c

@@ -129,6 +129,9 @@ bool filesystem_init(bool create_allowed, bool force_create) {
         make_empty_file(&vfs_fat->fatfs, "/.metadata_never_index");
         make_empty_file(&vfs_fat->fatfs, "/.Trashes");
         make_empty_file(&vfs_fat->fatfs, "/.fseventsd/no_log");
+        #if CIRCUITPY_OS_GETENV
+        make_empty_file(&vfs_fat->fatfs, "/settings.toml");
+        #endif
         // make a sample code.py file
         make_sample_code_file(&vfs_fat->fatfs);
 

supervisor/shared/web_workflow/static/directory.js

@@ -95,7 +95,7 @@ async function refresh_list() {
         if (f.directory) {
             icon = "📁";
         } else if(f.name.endsWith(".txt") ||
-                  f.name.endsWith(".env") ||
+                  f.name.endsWith(".toml") ||
                   f.name.endsWith(".py") ||
                   f.name.endsWith(".js") ||
                   f.name.endsWith(".json")) {

supervisor/shared/web_workflow/static/welcome.html

@@ -12,7 +12,7 @@
 
     <h1><a href="/"><img src="/favicon.ico"/></a>&nbsp;Welcome!</h1>
 
-    <p>Welcome to CircuitPython's Web API. Go to the <a href="/fs/">file browser</a> to work with files in the CIRCUITPY drive. Go to the <a href="/code/">full code editor</a> for a more enriching experience which requires an active internet connection. Go to the <a href="/cp/serial/">serial terminal</a> to see code output and interact with the REPL. Make sure you've set <code>CIRCUITPY_WEB_API_PASSWORD='somepassword'</code> in <code>/.env</code>. Provide the password when the browser prompts for it. <strong>Leave the username blank.</strong></p>
+    <p>Welcome to CircuitPython's Web API. Go to the <a href="/fs/">file browser</a> to work with files in the CIRCUITPY drive. Go to the <a href="/code/">full code editor</a> for a more enriching experience which requires an active internet connection. Go to the <a href="/cp/serial/">serial terminal</a> to see code output and interact with the REPL. Make sure you've set <code>CIRCUITPY_WEB_API_PASSWORD='somepassword'</code> in <code>/settings.toml</code>. Provide the password when the browser prompts for it. <strong>Leave the username blank.</strong></p>
 
     <h2>Device Info:</h2>
 

supervisor/shared/web_workflow/web_workflow.c

@@ -64,8 +64,8 @@
 #include "shared-bindings/wifi/__init__.h"
 #endif
 
-#if CIRCUITPY_DOTENV
+#if CIRCUITPY_OS_GETENV
-#include "shared-module/dotenv/__init__.h"
+#include "shared-module/os/__init__.h"
 #endif
 
 enum request_state {
@@ -115,7 +115,7 @@ static wifi_radio_error_t _last_wifi_status = WIFI_RADIO_ERROR_NONE;
 static mdns_server_obj_t mdns;
 #endif
 
-static uint32_t web_api_port = 80;
+static mp_int_t web_api_port = 80;
 
 static socketpool_socketpool_obj_t pool;
 static socketpool_socket_obj_t listening;
@@ -244,22 +244,21 @@ void supervisor_web_workflow_status(void) {
 #endif
 
 void supervisor_start_web_workflow(void) {
-    #if CIRCUITPY_WEB_WORKFLOW && CIRCUITPY_WIFI
+    #if CIRCUITPY_WEB_WORKFLOW && CIRCUITPY_WIFI && CIRCUITPY_OS_GETENV
-
 
     char ssid[33];
     char password[64];
-    mp_int_t ssid_len = 0;
-    mp_int_t password_len = 0;
 
-    #if CIRCUITPY_DOTENV
+    os_getenv_err_t result = common_hal_os_getenv_str("CIRCUITPY_WIFI_SSID", ssid, sizeof(ssid));
-    ssid_len = dotenv_get_key("/.env", "CIRCUITPY_WIFI_SSID", ssid, sizeof(ssid) - 1);
+    if (result != GETENV_OK) {
-    password_len = dotenv_get_key("/.env", "CIRCUITPY_WIFI_PASSWORD", password, sizeof(password) - 1);
-    #endif
-    if (ssid_len <= 0 || (size_t)ssid_len >= sizeof(ssid) ||
-        password_len <= 0 || (size_t)password_len >= sizeof(password)) {
         return;
     }
+
+    result = common_hal_os_getenv_str("CIRCUITPY_WIFI_PASSWORD", password, sizeof(password));
+    if (result != GETENV_OK) {
+        return;
+    }
+
     if (!common_hal_wifi_radio_get_enabled(&common_hal_wifi_radio_obj)) {
         common_hal_wifi_init(false);
         common_hal_wifi_radio_set_enabled(&common_hal_wifi_radio_obj, true);
@@ -268,14 +267,11 @@ void supervisor_start_web_workflow(void) {
     // TODO: Do our own scan so that we can find the channel we want before calling connect.
     // Otherwise, connect will do a full slow scan to pick the best AP.
 
-    // NUL terminate the strings because dotenv doesn't.
-    ssid[ssid_len] = '\0';
-    password[password_len] = '\0';
     // We can all connect again because it will return early if we're already connected to the
     // network. If we are connected to a different network, then it will disconnect before
     // attempting to connect to the given network.
     _wifi_status = common_hal_wifi_radio_connect(
-        &common_hal_wifi_radio_obj, (uint8_t *)ssid, ssid_len, (uint8_t *)password, password_len,
+        &common_hal_wifi_radio_obj, (uint8_t *)ssid, strlen(ssid), (uint8_t *)password, strlen(password),
         0, 8, NULL, 0);
 
     if (_wifi_status != WIFI_RADIO_ERROR_NONE) {
@@ -283,21 +279,15 @@ void supervisor_start_web_workflow(void) {
         return;
     }
 
-    char port_encoded[6];
+    mp_int_t new_port = web_api_port;
-    size_t port_len = 0;
+    // (leaves new_port unchanged on any failure)
-    size_t new_port = web_api_port;
+    (void)common_hal_os_getenv_int("CIRCUITPY_WEB_API_PORT", &new_port);
-    #if CIRCUITPY_DOTENV
-    port_len = dotenv_get_key("/.env", "CIRCUITPY_WEB_API_PORT", port_encoded, sizeof(port_encoded) - 1);
-    #endif
-    if (0 < port_len && port_len < sizeof(port_encoded)) {
-        port_encoded[port_len] = '\0';
-        new_port = strtoul(port_encoded, NULL, 10);
-    }
 
     bool first_start = pool.base.type != &socketpool_socketpool_type;
     bool port_changed = new_port != web_api_port;
 
     if (first_start) {
+        port_changed = false;
         #if CIRCUITPY_MDNS
         mdns_server_construct(&mdns, true);
         mdns.base.type = &mdns_server_type;
@@ -326,11 +316,12 @@ void supervisor_start_web_workflow(void) {
         common_hal_socketpool_socket_listen(&listening, 1);
     }
 
-    mp_int_t api_password_len = dotenv_get_key("/.env", "CIRCUITPY_WEB_API_PASSWORD", _api_password + 1, sizeof(_api_password) - 2);
+
-    if (api_password_len > 0) {
+    const size_t api_password_len = sizeof(_api_password) - 1;
+    result = common_hal_os_getenv_str("CIRCUITPY_WEB_API_PASSWORD", _api_password + 1, api_password_len);
+    if (result == GETENV_OK) {
         _api_password[0] = ':';
-        _api_password[api_password_len + 1] = '\0';
+        _base64_in_place(_api_password, strlen(_api_password), sizeof(_api_password) - 1);
-        _base64_in_place(_api_password, api_password_len + 1, sizeof(_api_password));
     }
     #endif
 }
@@ -360,7 +351,7 @@ static void _send_str(socketpool_socket_obj_t *socket, const char *str) {
 }
 
 // The last argument must be NULL! Otherwise, it won't stop.
-static void _send_strs(socketpool_socket_obj_t *socket, ...) {
+static __attribute__((sentinel)) void _send_strs(socketpool_socket_obj_t *socket, ...) {
     va_list ap;
     va_start(ap, socket);
 
@@ -691,16 +682,16 @@ static void _reply_with_file(socketpool_socket_obj_t *socket, _request *request,
     mp_print_t _socket_print = {socket, _print_raw};
     mp_printf(&_socket_print, "Content-Length: %d\r\n", total_length);
     // TODO: Make this a table to save space.
-    if (_endswith(filename, ".txt") || _endswith(filename, ".py")) {
+    if (_endswith(filename, ".txt") || _endswith(filename, ".py") || _endswith(filename, ".toml")) {
-        _send_strs(socket, "Content-Type: text/plain", ";charset=UTF-8\r\n", NULL);
+        _send_strs(socket, "Content-Type:", "text/plain", ";charset=UTF-8\r\n", NULL);
     } else if (_endswith(filename, ".js")) {
-        _send_strs(socket, "Content-Type: text/javascript", ";charset=UTF-8\r\n", NULL);
+        _send_strs(socket, "Content-Type:", "text/javascript", ";charset=UTF-8\r\n", NULL);
     } else if (_endswith(filename, ".html")) {
-        _send_strs(socket, "Content-Type: text/html", ";charset=UTF-8\r\n", NULL);
+        _send_strs(socket, "Content-Type:", "text/html", ";charset=UTF-8\r\n", NULL);
     } else if (_endswith(filename, ".json")) {
-        _send_strs(socket, "Content-Type: application/json", ";charset=UTF-8\r\n", NULL);
+        _send_strs(socket, "Content-Type:", "application/json", ";charset=UTF-8\r\n", NULL);
     } else {
-        _send_str(socket, "Content-Type: application/octet-stream\r\n");
+        _send_strs(socket, "Content-Type:", "application/octet-stream\r\n", NULL);
     }
     _cors_header(socket, request);
     _send_str(socket, "\r\n");

tests/circuitpython/dotenv_test.env

@@ -1,37 +0,0 @@
-# Key "notpresent" is not present
-   # comment preceded by spaces
-plain_value=value
-value_with_comment=value # value followed by a comment
-quoted_value='value'
-quoted_value_with_comment='value' # quoted value followed by a comment
-should_be_none
-should_be_empty_string=
-should_be_hash=#
-quoted_should_be_empty_string=''
-duplicate_key=wrong
-duplicate_key=right
-value_with_hash=value#value
-quoted_value_with_hash='value#value'
-multi_line_value='multi
-line'
- space_before_key=value
-space_before_value= value
-space_before_hash_value= #value
-space_after_key =value
-space_after_key_before_value = value
-quoted_then_comment='value'#comment
-hash_with_spaces=#value value
-aa🐍bb=key with emoji
-value_with_emoji=aa🐍bb
-sz0=x
-sz1=xx
-sz2=xxxx
-sz3=xxxxxxxx
-sz4=xxxxxxxxxxxxxxxx
-sz5=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-sz6=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-sz7=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-sz8=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-sz9=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-sz10=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-sz11=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

tests/circuitpython/dotenv_test.py

@@ -1,31 +0,0 @@
-import dotenv
-
-FILE = __file__.rsplit(".", 1)[0] + ".env"
-
-print(f"notpresent={dotenv.get_key(FILE, 'notpresent')}")
-print(f"plain_value={dotenv.get_key(FILE, 'plain_value')}")
-print(f"value_with_comment={dotenv.get_key(FILE, 'value_with_comment')}")
-print(f"quoted_value={dotenv.get_key(FILE, 'quoted_value')}")
-print(f"quoted_value_with_comment={dotenv.get_key(FILE, 'quoted_value_with_comment')}")
-print(f"should_be_none={dotenv.get_key(FILE, 'should_be_none')}")
-print(f"should_be_empty_string={dotenv.get_key(FILE, 'should_be_empty_string')}")
-print(f"should_be_hash={dotenv.get_key(FILE, 'should_be_hash')}")
-print(f"quoted_should_be_empty_string={dotenv.get_key(FILE, 'quoted_should_be_empty_string')}")
-print(f"duplicate_key={dotenv.get_key(FILE, 'duplicate_key')}")
-### This is the a difference from CPython dotenv. The trailing #value is taken as a comment.
-print(f"value_with_hash={dotenv.get_key(FILE, 'value_with_hash')}")
-print(f"quoted_value_with_hash={dotenv.get_key(FILE, 'quoted_value_with_hash')}")
-print(f"multi_line_value={dotenv.get_key(FILE, 'multi_line_value')}")
-print(f"space_before_key={dotenv.get_key(FILE, 'space_before_key')}")
-print(f"space_before_value={dotenv.get_key(FILE, 'space_before_value')}")
-print(f"space_before_hash_value={dotenv.get_key(FILE, 'space_before_hash_value')}")
-print(f"space_after_key={dotenv.get_key(FILE, 'space_after_key')}")
-print(f"space_after_key_before_value={dotenv.get_key(FILE, 'space_after_key_before_value')}")
-print(f"quoted_then_comment={dotenv.get_key(FILE, 'quoted_then_comment')}")
-print(f"hash_with_spaces={dotenv.get_key(FILE, 'hash_with_spaces')}")
-print(f"aa🐍bb={dotenv.get_key(FILE, 'aa🐍bb')}")
-print(f"value_with_emoji={dotenv.get_key(FILE, 'value_with_emoji')}")
-
-for i in range(12):
-    key = f"sz{i}"
-    print(f"len({key})={len(dotenv.get_key(FILE, key))}")

tests/circuitpython/dotenv_test.py.exp

@@ -1,35 +0,0 @@
-notpresent=None
-plain_value=value
-value_with_comment=value
-quoted_value=value
-quoted_value_with_comment=value
-should_be_none=None
-should_be_empty_string=
-should_be_hash=#
-quoted_should_be_empty_string=
-duplicate_key=right
-value_with_hash=value
-quoted_value_with_hash=value#value
-multi_line_value=multi
-line
-space_before_key=value
-space_before_value=value
-space_before_hash_value=#value
-space_after_key=value
-space_after_key_before_value=value
-quoted_then_comment=value
-hash_with_spaces=#value value
-aa🐍bb=key with emoji
-value_with_emoji=aa🐍bb
-len(sz0)=1
-len(sz1)=2
-len(sz2)=4
-len(sz3)=8
-len(sz4)=16
-len(sz5)=32
-len(sz6)=64
-len(sz7)=128
-len(sz8)=256
-len(sz9)=512
-len(sz10)=1024
-len(sz11)=2048

tests/circuitpython/getenv.py

@@ -0,0 +1,79 @@
+import uos
+
+uos.umount("/")
+
+
+class RAMBlockDevice:
+    ERASE_BLOCK_SIZE = 512
+
+    def __init__(self, blocks):
+        self.data = bytearray(blocks * self.ERASE_BLOCK_SIZE)
+
+    def readblocks(self, block, buf, off=0):
+        addr = block * self.ERASE_BLOCK_SIZE + off
+        for i in range(len(buf)):
+            buf[i] = self.data[addr + i]
+
+    def writeblocks(self, block, buf, off=None):
+        if off is None:
+            # erase, then write
+            off = 0
+        addr = block * self.ERASE_BLOCK_SIZE + off
+        for i in range(len(buf)):
+            self.data[addr + i] = buf[i]
+
+    def ioctl(self, op, arg):
+        if op == 4:  # block count
+            return len(self.data) // self.ERASE_BLOCK_SIZE
+        if op == 5:  # block size
+            return self.ERASE_BLOCK_SIZE
+        if op == 6:  # erase block
+            return 0
+
+
+bdev = RAMBlockDevice(64)
+uos.VfsFat.mkfs(bdev)
+uos.mount(uos.VfsFat(bdev), "/")
+
+content_good = """
+# comment
+key0 = "hello world"
+key1 = 7
+key2= "\n"
+key3 ="\u00c1x"
+key4 = "\U000000c1x"
+key5 = "\f\"\\"
+key6 = "\t\r\b"
+key7 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+key8 = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+ key9 = "hello comment" # comment
+  key10 = 0x7f # comment
+key11 = 0
+[section]
+subvalue = "hi"
+"""
+
+content_bad = [
+    'key = "\n',
+    'key = """\n',
+    "key =\n",
+    'key="',
+]
+
+
+def run_test(key, content):
+    with open("/settings.toml", "w") as f:
+        f.write(content)
+
+    try:
+        v = uos.getenv(key)
+        print(key, repr(v))
+    except Exception as e:
+        print(key, str(e))
+
+
+for i in range(13):
+    run_test(f"key{i}", content_good)
+
+for content in content_bad:
+    run_test("key", content)

tests/circuitpython/getenv.py.exp

@@ -0,0 +1,17 @@
+key0 'hello world'
+key1 7
+key2 Invalid byte '\n'
+key3 'Áx'
+key4 'Áx'
+key5 Invalid byte '\\'
+key6 '\t\r\x08'
+key7 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
+key8 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
+key9 'hello comment'
+key10 127
+key11 0
+key12 None
+key Invalid byte '\n'
+key Invalid byte '"'
+key invalid syntax for integer with base 10: ''
+key Invalid byte 'EOF'

tests/unix/extra_coverage.py.exp

@@ -32,19 +32,18 @@ mport
 builtins        micropython     _asyncio        _thread
 _uasyncio       aesio           array           binascii
 bitmaptools     btree           cexample        cmath
-collections     cppexample      displayio       dotenv
+collections     cppexample      displayio       errno
-errno           ffi             framebuf        gc
+ffi             framebuf        gc              gifio
-gifio           hashlib         json            math
+hashlib         json            math            qrio
-qrio            rainbowio       re              sys
+rainbowio       re              sys             termios
-termios         traceback       ubinascii       uctypes
+traceback       ubinascii       uctypes         uerrno
-uerrno          uheapq          uio             ujson
+uheapq          uio             ujson           ulab
-ulab            ulab.numpy      ulab.numpy.fft
+ulab.numpy      ulab.numpy.fft  ulab.numpy.linalg
-ulab.numpy.linalg               ulab.scipy
+ulab.scipy      ulab.scipy.linalg
-ulab.scipy.linalg               ulab.scipy.optimize
+ulab.scipy.optimize             ulab.scipy.signal
-ulab.scipy.signal               ulab.scipy.special
+ulab.scipy.special              ulab.utils      uos
-ulab.utils      uos             urandom         ure
+urandom         ure             uselect         ustruct
-uselect         ustruct         utime           utimeq
+utime           utimeq          uzlib           zlib
-uzlib           zlib
 ime
 
 utime           utimeq