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[8.0.0] Make git_repository() ignore GIT_ env vars #24300

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merged 1 commit into from
Nov 13, 2024
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[8.0.0] Make git_repository() ignore GIT_ env vars #24300

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26 changes: 24 additions & 2 deletions tools/build_defs/repo/git_worker.bzl
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Original file line number Diff line number Diff line change
Expand Up @@ -126,7 +126,7 @@ def _update(ctx, git_repo):

def init(ctx, git_repo):
cl = ["git", "init", str(git_repo.directory)]
st = ctx.execute(cl, environment = ctx.os.environ)
st = ctx.execute(cl, environment = ctx.os.environ | _GIT_LOCAL_ENV_VARS)
if st.return_code != 0:
_error(ctx.name, cl, st.stderr)

Expand Down Expand Up @@ -195,13 +195,35 @@ def _git_maybe_shallow(ctx, git_repo, command, *args):
return st
return _execute(ctx, git_repo, start + args_list)

# List of variables to unset when calling `git` to ensure no interference of
# operation. This is in the form of a dict that can be passed to `execute()`.
# This list is taken from the output of `git rev-parse --local-env-vars`
_GIT_LOCAL_ENV_VARS = {
"GIT_ALTERNATE_OBJECT_DIRECTORIES": None,
"GIT_CONFIG": None,
"GIT_CONFIG_PARAMETERS": None,
"GIT_CONFIG_COUNT": None,
"GIT_OBJECT_DIRECTORY": None,
"GIT_DIR": None,
"GIT_WORK_TREE": None,
"GIT_IMPLICIT_WORK_TREE": None,
"GIT_GRAFT_FILE": None,
"GIT_INDEX_FILE": None,
"GIT_NO_REPLACE_OBJECTS": None,
"GIT_REPLACE_REF_BASE": None,
"GIT_PREFIX": None,
"GIT_INTERNAL_SUPER_PREFIX": None,
"GIT_SHALLOW_FILE": None,
"GIT_COMMON_DIR": None,
}

def _execute(ctx, git_repo, args):
# "core.fsmonitor=false" disables git from spawning a file system monitor which can cause hangs when cloning a lot.
# See https://github.com/bazelbuild/bazel/issues/21438
start = ["git", "-c", "core.fsmonitor=false"]
return ctx.execute(
start + args,
environment = ctx.os.environ,
environment = ctx.os.environ | _GIT_LOCAL_ENV_VARS,
working_directory = str(git_repo.directory),
)

Expand Down
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