🧑‍💻 Add validate-pins workflow for PRs

.github/workflows/ci-validate-pins.yml

@@ -0,0 +1,51 @@
+#
+# ci-validate-pins.yml
+# Validate that all of the pins files are unchanged by pinsformat.py
+#
+
+name: CI - Validate Pins Files
+
+on:
+  pull_request:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths:
+    - 'Marlin/src/pins/*/**'
+  push:
+    branches:
+    - bugfix-2.1.x
+    # Cannot be enabled on 2.1.x until it contains the unit test framework
+    #- 2.1.x
+    paths:
+    - 'Marlin/src/pins/*/**'
+
+jobs:
+  validate_pins_files:
+    name: Validate Pins Files
+    if: github.repository == 'MarlinFirmware/Marlin'
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out the PR
+      uses: actions/checkout@v4
+
+    - name: Cache pip
+      uses: actions/cache@v4
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Select Python 3.9
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.9'
+        architecture: 'x64'
+
+    - name: Validate all pins files
+      run: |
+        make validate-pins -j

Makefile

@@ -7,7 +7,8 @@ UNIT_TEST_CONFIG ?= default
 help:
 	@echo "Tasks for local development:"
 	@echo "make marlin                    : Build marlin for the configured board"
-	@echo "make format-pins               : Reformat all pins files"
+	@echo "make format-pins -j            : Reformat all pins files (-j for parallel execution)"
+	@echo "make validate-pins -j          : Validate all pins files, fails if any require reformatting"
 	@echo "make tests-single-ci           : Run a single test from inside the CI"
 	@echo "make tests-single-local        : Run a single test locally"
 	@echo "make tests-single-local-docker : Run a single test locally, using docker"
@@ -81,7 +82,14 @@ setup-local-docker:
 
 PINS := $(shell find Marlin/src/pins -mindepth 2 -name '*.h')
 
+.PHONY: $(PINS) format-pins validate-pins
+
 $(PINS): %:
-	@echo "Formatting $@" && node $(SCRIPTS_DIR)/pinsformat.js $@
+	@echo "Formatting $@"
+	@python $(SCRIPTS_DIR)/pinsformat.py $< $@
 
 format-pins: $(PINS)
+
+validate-pins: format-pins
+	@echo "Validating pins files"
+	@git diff --exit-code || (git status && echo "\nError: Pins files are not formatted correctly. Run \"make format-pins\" to fix.\n" && exit 1)

buildroot/share/git/mfhelp

@@ -41,6 +41,6 @@ Modify Configuration.h / Configuration_adv.h:
 Modify pins files:
 
   pins_set ............. Set the value of a pin in a pins file
-  pinsformat.js ........ Node.js script to format pins files
+  pinsformat.py ........ Python script to format pins files
 
 THIS

buildroot/share/scripts/pinsformat.py

@@ -27,6 +27,13 @@ def rpad(astr, fill, c=' '):
     need = fill - len(astr)
     return astr if need <= 0 else astr + (need * c)
 
+# Concatenate a string, adding a space if necessary
+# to avoid merging two words
+def concat_with_space(s1, s2):
+    if not s1.endswith(' ') and not s2.startswith(' '):
+        s1 += ' '
+    return s1 + s2
+
 # Pin patterns
 mpatt = [ r'-?\d{1,3}', r'P[A-I]\d+', r'P\d_\d+', r'Pin[A-Z]\d\b' ]
 mstr = '|'.join(mpatt)
@@ -45,6 +52,7 @@ def format_pins(argv):
     scnt = 0
     for arg in argv:
         if arg == '-v':
+            global do_log
             do_log = True
         elif scnt == 0:
             # Get a source file if specified. Default destination is the same file
@@ -135,7 +143,7 @@ def tryPindef(d):
         logmsg("pin:", line)
         pinnum = r[4] if r[4][0] == 'P' else lpad(r[4], patt['pad'])
         line = f'{r[1]} {r[3]}'
-        line = rpad(line, col_value_lj) + pinnum
+        line = concat_with_space(rpad(line, col_value_lj), pinnum)
         if r[5]: line = rpad(line, col_comment) + r[5]
         d['line'] = line
         return True
@@ -149,7 +157,7 @@ def tryNoPin(d):
         if r == None: return False
         logmsg("pin -1:", line)
         line = f'{r[1]} {r[3]}'
-        line = rpad(line, col_value_lj) + '-1'
+        line = concat_with_space(rpad(line, col_value_lj), '-1')
         if r[5]: line = rpad(line, col_comment) + r[5]
         d['line'] = line
         return True
@@ -179,8 +187,8 @@ def tryAlias(d):
         if r == None: return False
         logmsg("alias:", line)
         line = f'{r[1]} {r[3]}'
-        line += lpad(r[4], col_value_rj + 1 - len(line))
-        if r[5]: line = rpad(line, col_comment) + r[5]
+        line = concat_with_space(line, lpad(r[4], col_value_rj + 1 - len(line)))
+        if r[5]: line = concat_with_space(rpad(line, col_comment), r[5])
         d['line'] = line
         return True
 
@@ -193,7 +201,7 @@ def trySwitch(d):
         if r == None: return False
         logmsg("switch:", line)
         line = f'{r[1]} {r[3]}'
-        if r[4]: line = rpad(line, col_comment) + r[4]
+        if r[4]: line = concat_with_space(rpad(line, col_comment), r[4])
         d['line'] = line
         d['check_comment_next'] = True
         return True
@@ -207,7 +215,7 @@ def tryDef(d):
         if r == None: return False
         logmsg("def:", line)
         line = f'{r[1]} {r[3]} '
-        line += lpad(r[4], col_value_rj + 1 - len(line))
+        line = concat_with_space(line, lpad(r[4], col_value_rj + 1 - len(line)))
         if r[5]: line = rpad(line, col_comment - 1) + ' ' + r[5]
         d['line'] = line
         return True
@@ -221,7 +229,7 @@ def tryUndef(d):
         if r == None: return False
         logmsg("undef:", line)
         line = f'{r[1]} {r[3]}'
-        if r[4]: line = rpad(line, col_comment) + r[4]
+        if r[4]: line = concat_with_space(rpad(line, col_comment), r[4])
         d['line'] = line
         return True
 
@@ -233,7 +241,7 @@ def tryCond(d):
         r = condPatt.match(line)
         if r == None: return False
         logmsg("cond:", line)
-        line = rpad(r[1], col_comment) + r[5]
+        line = concat_with_space(rpad(r[1], col_comment), r[5])
         d['line'] = line
         d['check_comment_next'] = True
         return True