Add commit info to `version.h` (#19542)

* Initial commit

* Fix import order

* Fix deleted code instead of debug print line

* Format

* Update lib/python/qmk/cli/generate/version_h.py

Co-authored-by: Ryan <fauxpark@gmail.com>

* Renaming

* Update lib/python/qmk/cli/generate/version_h.py

Co-authored-by: Joel Challis <git@zvecr.com>

* Update lib/python/qmk/git.py

Co-authored-by: Joel Challis <git@zvecr.com>

---------

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Joel Challis <git@zvecr.com>

lib/python/qmk/cli/generate/version_h.py

@@ -6,7 +6,7 @@ from milc import cli
 
 from qmk.path import normpath
 from qmk.commands import dump_lines
-from qmk.git import git_get_version
+from qmk.git import git_get_qmk_hash, git_get_version, git_is_dirty
 from qmk.constants import GPL2_HEADER_C_LIKE, GENERATED_HEADER_C_LIKE
 
 TIME_FMT = '%Y-%m-%d-%H:%M:%S'
@@ -29,23 +29,30 @@ def generate_version_h(cli):
         current_time = strftime(TIME_FMT)
 
     if cli.args.skip_git:
+        git_dirty = False
         git_version = "NA"
+        git_qmk_hash = "NA"
         chibios_version = "NA"
         chibios_contrib_version = "NA"
     else:
+        git_dirty = git_is_dirty()
         git_version = git_get_version() or current_time
+        git_qmk_hash = git_get_qmk_hash() or "Unknown"
         chibios_version = git_get_version("chibios", "os") or current_time
         chibios_contrib_version = git_get_version("chibios-contrib", "os") or current_time
 
     # Build the version.h file.
     version_h_lines = [GPL2_HEADER_C_LIKE, GENERATED_HEADER_C_LIKE, '#pragma once']
 
-    version_h_lines.append(f"""
+    version_h_lines.append(
+        f"""
 #define QMK_VERSION "{git_version}"
 #define QMK_BUILDDATE "{current_time}"
+#define QMK_GIT_HASH  "{git_qmk_hash}{'*' if git_dirty else ''}"
 #define CHIBIOS_VERSION "{chibios_version}"
 #define CHIBIOS_CONTRIB_VERSION "{chibios_contrib_version}"
-""")
+"""
+    )
 
     # Show the results
     dump_lines(cli.args.output, version_h_lines, cli.args.quiet)

lib/python/qmk/git.py

@@ -136,3 +136,11 @@ def git_get_ignored_files(check_dir='.'):
     if invalid.returncode != 0:
         return []
     return invalid.stdout.strip().splitlines()
+
+
+def git_get_qmk_hash():
+    output = cli.run(['git', 'rev-parse', '--short', 'HEAD'])
+    if output.returncode != 0:
+        return None
+
+    return output.stdout.strip()