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git_cl: update the clang, java, and yapf formatters to be git-free

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This makes the formatter runners to be git-free if --input_diff_file
is given. They still run `git diff`, if --diff is given. However,
for the purpose of making the presubmit check for format verification
git-free, it's ok as --diff is not used by the presubmit check.


Bug: 386840832
Change-Id: If5ab68fa4e2fec1aafa22e15ddeabb744993342b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/6931775
Commit-Queue: Scott Lee <ddoman@chromium.org>
Reviewed-by: Gavin Mak <gavinmak@google.com>
This commit is contained in:
Scott Lee
2025-09-11 10:28:39 -07:00
committed by LUCI CQ
parent f1e3fbdf09
commit 363e910475
2 changed files with 126 additions and 79 deletions
Download Patch File Download Diff File Expand all files Collapse all files

95
git_cl.py
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@@ -642,16 +642,18 @@ def _print_tryjobs(options, builds):
print('Total: %d tryjobs' % total)
def _ComputeFormatDiffLineRanges(files, upstream_commit, expand=0):
"""Gets the changed line ranges for each file since upstream_commit.
def _ComputeFormatDiffLineRanges(files, diffs, expand=0):
"""Gets the changed line ranges for each file.
Parses a git diff on provided files and returns a dict that maps a file name
to an ordered list of range tuples in the form (start_line, count).
Ranges are in the same format as a git diff.
Args:
files: List of paths to diff.
upstream_commit: Commit to diff against to find changed lines.
files: List of files to parse the diff of and return the ranges for.
diffs: a dict of diffs, where key is the file without the prefix,
and the value is the diff generated for the corresponding file.
Note that the hunks in the diffs contain prefxies, such as a/.., b/..
expand: Expand diff ranges by this many lines before & after.
Returns:
@@ -661,13 +663,7 @@ def _ComputeFormatDiffLineRanges(files, upstream_commit, expand=0):
if len(files) == 0:
return {}
# Take the git diff and find the line ranges where there are changes.
diff_output = RunGitDiffCmd(['-U0'],
upstream_commit,
files,
allow_prefix=True)
pattern = r'(?:^diff --git a/(?:.*) b/(.*))|(?:^@@.*\+(.*) @@)'
pattern = r'^@@.*\+(.*) @@'
# 2 capture groups
# 0 == fname of diff file
# 1 == 'diff_start,diff_count' or 'diff_start'
@@ -678,38 +674,39 @@ def _ComputeFormatDiffLineRanges(files, upstream_commit, expand=0):
# running re.findall on the above string with pattern will give
# [('foo.py', ''), ('', '14,3'), ('', '17')]
curr_file = None
line_diffs = {}
for match in re.findall(pattern, diff_output, flags=re.MULTILINE):
if match[0] != '':
# Will match the second filename in diff --git a/a.py b/b.py.
curr_file = match[0]
line_diffs[curr_file] = []
prev_end = 1
else:
line_diffs = collections.defaultdict(list)
for file in files:
diff = diffs.get(file, "")
if not diff:
continue
prev_end = 1
for match in re.findall(pattern, diff, flags=re.MULTILINE):
if not match:
continue
# Matches +14,3
if ',' in match[1]:
diff_start, diff_count = match[1].split(',')
if ',' in match:
diff_start, diff_count = match.split(',')
else:
# Single line changes are of the form +12 instead of +12,1.
diff_start = match[1]
diff_count = 1
# Matches +12
diff_start, diff_count = match, 1
# if the original lines were removed without replacements,
# the diff count is 0. Then, no formatting is necessary.
if diff_count == 0:
continue
diff_start = int(diff_start)
diff_count = int(diff_count)
# diff_count contains the diff_start line, and the line numbers
# given to formatter args are inclusive. For example, in
# google-java-format "--lines 5:10" includes 5th-10th lines.
diff_start = int(diff_start)
diff_count = int(diff_count)
diff_end = diff_start + diff_count - 1 + expand
diff_start = max(prev_end + 1, diff_start - expand)
if diff_start <= diff_end:
prev_end = diff_end
line_diffs[curr_file].append((diff_start, diff_end))
line_diffs[file].append((diff_start, diff_end))
return line_diffs
@@ -6718,7 +6715,7 @@ def RunGitDiffCmd(diff_type,
return output
def _RunClangFormatDiff(opts, paths, top_dir, upstream_commit):
def _RunClangFormatDiff(opts, paths, top_dir, diffs):
"""Runs clang-format-diff and sets a return value if necessary."""
# Set to 2 to signal to CheckPatchFormatted() that this patch isn't
# formatted. This is used to block during the presubmit.
@@ -6731,7 +6728,7 @@ def _RunClangFormatDiff(opts, paths, top_dir, upstream_commit):
DieWithError(e)
# Full formatting
if opts.full:
if not diffs:
cmd = [clang_format_tool]
if not opts.dry_run and not opts.diff:
cmd.append('-i')
@@ -6759,20 +6756,20 @@ def _RunClangFormatDiff(opts, paths, top_dir, upstream_commit):
except clang_format.NotFoundError as e:
DieWithError(e)
cmd = ['vpython3', script, '-p0']
cmd = ['vpython3', script, '-p1']
if not opts.dry_run and not opts.diff:
cmd.append('-i')
diff_output = RunGitDiffCmd(['-U0'], upstream_commit, paths)
env = os.environ.copy()
env['PATH'] = (str(os.path.dirname(clang_format_tool)) + os.pathsep +
env['PATH'])
# If `clang-format-diff.py` is run without `-i` and the diff is
# non-empty, it returns an error code of 1. This will cause `RunCommand`
# to die with an error if `error_ok` is not set.
input_diff = "\n".join(diffs.get(p, "") for p in paths)
stdout = RunCommand(cmd,
error_ok=True,
stdin=diff_output.encode(),
stdin=input_diff.encode(),
cwd=top_dir,
env=env,
shell=sys.platform.startswith('win32'))
@@ -6784,7 +6781,7 @@ def _RunClangFormatDiff(opts, paths, top_dir, upstream_commit):
return return_value
def _RunGoogleJavaFormat(opts, paths, top_dir, upstream_commit):
def _RunGoogleJavaFormat(opts, paths, top_dir, diffs):
"""Runs google-java-format and sets a return value if necessary."""
tool = google_java_format.FindGoogleJavaFormat()
if tool is None:
@@ -6800,13 +6797,11 @@ def _RunGoogleJavaFormat(opts, paths, top_dir, upstream_commit):
else:
base_cmd += ['--replace']
changed_lines_only = not opts.full
changed_lines_only = bool(diffs)
if changed_lines_only:
# Format two lines around each changed line so that the correct amount
# of blank lines will be added between symbols.
line_diffs = _ComputeFormatDiffLineRanges(paths,
upstream_commit,
expand=2)
line_diffs = _ComputeFormatDiffLineRanges(paths, diffs, expand=2)
def RunFormat(cmd, path, range_args, **kwds):
stdout = RunCommand(cmd + range_args + [path], **kwds)
@@ -6861,7 +6856,7 @@ def _RunGoogleJavaFormat(opts, paths, top_dir, upstream_commit):
return return_value
def _RunRustFmt(opts, paths, top_dir, upstream_commit):
def _RunRustFmt(opts, paths, top_dir, diffs):
"""Runs rustfmt. Just like _RunClangFormatDiff returns 2 to indicate that
presubmit checks have failed (and returns 0 otherwise)."""
# Locate the rustfmt binary.
@@ -6887,7 +6882,7 @@ def _RunRustFmt(opts, paths, top_dir, upstream_commit):
return 0
def _RunSwiftFormat(opts, paths, top_dir, upstream_commit):
def _RunSwiftFormat(opts, paths, top_dir, diffs):
"""Runs swift-format. Just like _RunClangFormatDiff returns 2 to indicate
that presubmit checks have failed (and returns 0 otherwise)."""
if sys.platform != 'darwin':
@@ -6912,7 +6907,7 @@ def _RunSwiftFormat(opts, paths, top_dir, upstream_commit):
return 0
def _RunYapf(opts, paths, top_dir, upstream_commit):
def _RunYapf(opts, paths, top_dir, diffs):
depot_tools_path = os.path.dirname(os.path.abspath(__file__))
yapf_tool = os.path.join(depot_tools_path, 'yapf')
@@ -6935,8 +6930,8 @@ def _RunYapf(opts, paths, top_dir, upstream_commit):
# Note: yapf still seems to fix indentation of the entire file
# even if line ranges are specified.
# See https://github.com/google/yapf/issues/499
if not opts.full and paths:
line_diffs = _ComputeFormatDiffLineRanges(paths, upstream_commit)
if paths and diffs:
line_diffs = _ComputeFormatDiffLineRanges(paths, diffs)
yapfignore_patterns = _GetYapfIgnorePatterns(top_dir)
paths = _FilterYapfIgnoredFiles(paths, yapfignore_patterns)
@@ -6976,7 +6971,7 @@ def _RunYapf(opts, paths, top_dir, upstream_commit):
return return_value
def _RunGnFormat(opts, paths, top_dir, upstream_commit):
def _RunGnFormat(opts, paths, top_dir, diffs):
cmd = [sys.executable, os.path.join(DEPOT_TOOLS, 'gn.py'), 'format']
if opts.dry_run or opts.diff:
cmd.append('--dry-run')
@@ -6999,7 +6994,7 @@ def _RunGnFormat(opts, paths, top_dir, upstream_commit):
return return_value
def _RunMojomFormat(opts, paths, top_dir, upstream_commit):
def _RunMojomFormat(opts, paths, top_dir, diffs):
primary_solution_path = gclient_paths.GetPrimarySolutionPath()
if not primary_solution_path:
DieWithError('Could not find the primary solution path (e.g. '
@@ -7022,7 +7017,7 @@ def _RunMojomFormat(opts, paths, top_dir, upstream_commit):
return ret
def _RunMetricsXMLFormat(opts, paths, top_dir, upstream_commit):
def _RunMetricsXMLFormat(opts, paths, top_dir, diffs):
# Skip the metrics formatting from the global presubmit hook. These files
# have a separate presubmit hook that issues an error if the files need
# formatting, whereas the top-level presubmit script merely issues a
@@ -7061,7 +7056,7 @@ def _RunMetricsXMLFormat(opts, paths, top_dir, upstream_commit):
return return_value
def _RunLUCICfgFormat(opts, paths, top_dir, upstream_commit):
def _RunLUCICfgFormat(opts, paths, top_dir, diffs):
depot_tools_path = os.path.dirname(os.path.abspath(__file__))
lucicfg = os.path.join(depot_tools_path, 'lucicfg')
if sys.platform == 'win32':
@@ -7266,8 +7261,9 @@ def CMDformat(parser: optparse.OptionParser, args: list[str]):
# Normalize files against the current path, so paths relative to the
# current directory are still resolved as expected.
top_dir = os.getcwd() if opts.presubmit else settings.GetRoot()
files = [os.path.join(os.getcwd(), file) for file in files]
diff_files, _ = _FindFilesToFormat(opts, files, upstream_commit)
diff_files, diffs = _FindFilesToFormat(opts, files, upstream_commit)
if opts.js:
clang_exts.extend(['.js', '.ts'])
@@ -7291,13 +7287,12 @@ def CMDformat(parser: optparse.OptionParser, args: list[str]):
if opts.lucicfg:
formatters.append((['.star'], _RunLUCICfgFormat))
top_dir = os.getcwd() if opts.presubmit else settings.GetRoot()
return_value = 0
for file_types, format_func in formatters:
paths = [p for p in diff_files if p.lower().endswith(tuple(file_types))]
if not paths:
continue
ret = format_func(opts, paths, top_dir, upstream_commit)
ret = format_func(opts, paths, top_dir, diffs)
return_value = return_value or ret
return return_value