West extention for code formattng and github actions to check format before merge

.github/workflows/build.yml

@@ -21,11 +21,21 @@ jobs:
           path: ZSWatch
           submodules: recursive
 
+      - name: Dependencies
+        run: |
+          sudo apt update
+          sudo apt install astyle
+
       - name: Initialize
         working-directory: ZSWatch
         run: |
           west init -l app
           west update -o=--depth=1 -n
+
+      - name: Style
+        working-directory: ZSWatch
+        run: |
+          west format --dry-run
 
       - name: Build firmware
         working-directory: ZSWatch

app/scripts/astyle_format_west_command.py

@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+
+"""Run AStyle on all code."""
+
+from west.commands import WestCommand
+from west import log
+import subprocess
+import sys
+import os
+
+
+class FormatCodeWestCommand(WestCommand):
+    def __init__(self):
+        super().__init__(
+            "format",
+            "Format the codebase",
+            """Use to format all .c and .h giles""",
+        )
+
+    def do_add_parser(self, parser_adder):
+        parser = parser_adder.add_parser(
+            self.name, help=self.help, description=self.description
+        )
+
+        parser.add_argument(
+            "--dry-run",
+            action="store_true",
+            help="Dry run won't actually format the code.",
+        )
+
+        return parser
+
+    def do_run(self, args, unknown_args):
+        astyle_args = ["astyle"]
+        if args.dry_run == True:
+            astyle_args.append("--dry-run")
+        astyle_args.extend(
+            [
+                "--options={}/../app/tools/astyle.cfg".format(
+                    os.environ["ZEPHYR_BASE"]
+                ),
+                "--recursive",
+                "{}/../app/src/*.c,*.h".format(os.environ["ZEPHYR_BASE"]),
+                "--recursive",
+                "{}/../app/drivers/*.c,*.h".format(os.environ["ZEPHYR_BASE"]),
+            ]
+        )
+        with subprocess.Popen(
+            astyle_args,
+            stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE,
+            universal_newlines=True,
+        ) as astyle:
+            fail = False
+            output = astyle.communicate()
+            output = output[0].split("\n")
+            for line in output:
+                if line.startswith("Formatted"):
+                    fail = True
+                print(line, end="\n")
+            if astyle.returncode != 0:
+                fail = True
+            sys.exit(1 if fail else 0)

app/scripts/west-commands.yml

@@ -3,4 +3,9 @@ west-commands:
     commands:
       - name: upload_fs
         class: UploadFsWestCommand
-        help: an example west extension command
+        help: Upload filesystem to external SPI flash
+  - file: scripts/astyle_format_west_command.py
+    commands:
+      - name: format
+        class: FormatCodeWestCommand
+        help: Format the code

app/tools/astyle.cfg

@@ -25,4 +25,14 @@
 # When breaking lines, leave the logical operator on the end of the line
 --break-after-logical
 # Ignore unfound excludes
---ignore-exclude-errors
+--ignore-exclude-errors
+
+# Other config used
+--suffix=none
+--verbose
+--errors-to-stdout
+--exclude=src/images
+--exclude=src/ext_drivers
+--exclude=drivers/input
+--exclude=drivers/sensor
+--exclude=src/applications/2048/2048_lib

app/tools/format_code.sh

@@ -1,13 +1,5 @@
 astyle \
 --options=tools/astyle.cfg \
---suffix=none \
---verbose \
---errors-to-stdout \
 --recursive src/*.c,*.h \
 --recursive drivers/*.c,*.h \
---exclude=src/images \
---exclude=src/ext_drivers \
---exclude=drivers/input \
---exclude=drivers/sensor \
---exclude=src/applications/2048/2048_lib \
 $1 $2 $3 # addtional args such as --dry-run etc.