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Rewrite Git.execute() command parameter docstring per #2146 - #2147
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Pull request overview
Updates the Git.execute() docstring in git/cmd.py to clarify how the command parameter behaves when passed as a string vs a sequence, with emphasis on platform differences (Unix-like vs Windows) and the security implications of shell=True / Git.USE_SHELL. This aligns the documentation with the Windows behavior discussed in #2146 and refines guidance around shlex.split.
Changes:
- Rewrites
:param command:to describe platform-dependent behavior of string commands and to strengthen security guidance around shells. - Qualifies the
shlex.splitmention to position it as safer thanshell=Truebut still unsafe for untrusted/interpolated input. - Adds a
:param shell:note aboutshlex.splitas a rare transitional aid when migrating away fromshell=Trueon Unix-like systems.
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…opers#2146 gitpython-developers#2146 identifies two factual problems in gitpython-developers#2144's `:param command:` rewrite, both of which this fixes: 1. The claim that with `shell=False` a string "is passed as a single executable name to `subprocess.Popen`" is accurate on Unix-like systems, but on Windows `subprocess.Popen` forwards the string to `CreateProcessW` and Windows command-line parsing produces argv. So multi-word strings happen to work on Windows -- which makes the docstring misleading for Windows readers and unhelpful for anyone whose actual problem is portability. 2. The blanket recommendation to use `shlex.split` read as a general string-to-argv splitter. `shlex.split` parses POSIX shell syntax on all systems, and the resulting tokens are still unsafe for anything but fixed, fully trusted strings -- in particular, strings built by interpolating values can still inject extra arguments via embedded whitespace or quoting. Restructure `:param command:` into four paragraphs (description, platform-specific string handling, `shell=True` / `Git.USE_SHELL` warning, qualified `shlex.split` note) and cross-reference `USE_SHELL` for the long-form security discussion rather than reproducing it. Add a related paragraph to `:param shell:` noting `shlex.split`'s narrow value as a transitional tool when migrating existing string-command `shell=True` calls on Unix-like systems, with extreme care, and cross-referencing `:param command:` for the risks. This fixes gitpython-developers#2146. Only documentation is changed. Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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To avert the mistake of not removing `shell=True` when using it. Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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This MR contains the following updates: | Package | Type | Update | Change | OpenSSF | |---|---|---|---|---| | [gitpython](https://github.com/gitpython-developers/GitPython) | dev | patch | `3.1.50` → `3.1.52` | [](https://securityscorecards.dev/viewer/?uri=github.com/gitpython-developers/GitPython) | --- ### Release Notes <details> <summary>gitpython-developers/GitPython (gitpython)</summary> ### [`v3.1.52`](https://github.com/gitpython-developers/GitPython/releases/tag/3.1.52): Security [Compare Source](gitpython-developers/GitPython@3.1.51...3.1.52) <GHSA-rwj8-pgh3-r573>: Environment-variable exfiltration via os.path.expandvars() on Repo.clone\_from() URL #### What's Changed - Skip cross-drive relative config test on Windows by [@​Byron](https://github.com/Byron) in [#​2171](gitpython-developers/GitPython#2171) - fix: preserve literal clone URLs by [@​Byron](https://github.com/Byron) in [#​2172](gitpython-developers/GitPython#2172) **Full Changelog**: <gitpython-developers/GitPython@3.1.51...3.1.52> ### [`v3.1.51`](https://github.com/gitpython-developers/GitPython/releases/tag/3.1.51): - Security [Compare Source](gitpython-developers/GitPython@3.1.50...3.1.51) #### What's Changed - Add AI-disclosure and quality requirements to the contribution guidelines by [@​Byron](https://github.com/Byron) in [#​2143](gitpython-developers/GitPython#2143) - docs(cmd): clarify Git.execute() string vs list command argument by [@​mvanhorn](https://github.com/mvanhorn) in [#​2144](gitpython-developers/GitPython#2144) - Rewrite Git.execute() command parameter docstring per [#​2146](gitpython-developers/GitPython#2146) by [@​EliahKagan](https://github.com/EliahKagan) in [#​2147](gitpython-developers/GitPython#2147) - Document init script behavior with multiple master remotes by [@​EliahKagan](https://github.com/EliahKagan) in [#​2148](gitpython-developers/GitPython#2148) - Bump git/ext/gitdb from `335c0f6` to `0a019a2` by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2149](gitpython-developers/GitPython#2149) - Support relative worktree paths (git 2.48+ worktree.useRelativePaths) by [@​elovelan](https://github.com/elovelan) in [#​2151](gitpython-developers/GitPython#2151) - Defer xfail condition evaluation with xfail\_if\_raises context manager by [@​elovelan](https://github.com/elovelan) in [#​2153](gitpython-developers/GitPython#2153) - Run more submodule tests on Cygwin (fix flaky xfails) by [@​EliahKagan](https://github.com/EliahKagan) in [#​2154](gitpython-developers/GitPython#2154) - Cut xtrace noise from POSIX-ownership diagnostic steps by [@​EliahKagan](https://github.com/EliahKagan) in [#​2156](gitpython-developers/GitPython#2156) - Support index diffs against the empty tree by [@​puneetdixit200](https://github.com/puneetdixit200) in [#​2155](gitpython-developers/GitPython#2155) - refactor: seperate out Progress type by [@​LoeschMaximilian](https://github.com/LoeschMaximilian) in [#​2157](gitpython-developers/GitPython#2157) - Bump <https://github.com/astral-sh/ruff-pre-commit> from v0.15.12 to 0.15.15 in the pre-commit group by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2160](gitpython-developers/GitPython#2160) - Bump actions/checkout from 6 to 7 by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2164](gitpython-developers/GitPython#2164) - Bump git/ext/gitdb from `0a019a2` to `4950ea9` by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2165](gitpython-developers/GitPython#2165) - Bump <https://github.com/astral-sh/ruff-pre-commit> from v0.15.15 to 0.15.20 in the pre-commit group by [@​dependabot](https://github.com/dependabot)\[bot] in [#​2166](gitpython-developers/GitPython#2166) - Add Commit.is\_shallow property; document stats() limitation at shallow boundary by [@​harshitayadavv](https://github.com/harshitayadavv) in [#​2167](gitpython-developers/GitPython#2167) - Allow relative config paths with includes by [@​Byron](https://github.com/Byron) in [#​2169](gitpython-developers/GitPython#2169) - Reject abbreviated forms of unsafe git options by [@​Byron](https://github.com/Byron) in [#​2168](gitpython-developers/GitPython#2168) - guard unsafe git command options by [@​Byron](https://github.com/Byron) in [#​2163](gitpython-developers/GitPython#2163) #### New Contributors - [@​elovelan](https://github.com/elovelan) made their first contribution in [#​2151](gitpython-developers/GitPython#2151) - [@​puneetdixit200](https://github.com/puneetdixit200) made their first contribution in [#​2155](gitpython-developers/GitPython#2155) - [@​LoeschMaximilian](https://github.com/LoeschMaximilian) made their first contribution in [#​2157](gitpython-developers/GitPython#2157) - [@​harshitayadavv](https://github.com/harshitayadavv) made their first contribution in [#​2167](gitpython-developers/GitPython#2167) **Full Changelog**: <gitpython-developers/GitPython@3.1.50...3.1.51> </details> --- - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box --- This MR has been generated by [Mend Renovate](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiI0My4yNzAuMCIsInVwZGF0ZWRJblZlciI6IjQzLjI3MC4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJkZXBlbmRlbmNpZXMiLCJyZW5vdmF0ZSJdfQ==--> See merge request swiss-armed-forces/cyber-command/cea/loom!679 Co-authored-by: Loom MR Pipeline Trigger <group_103951964_bot_9504bb8dead6d4e406ad817a607f24be@noreply.gitlab.com>
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Fixes #2146
This was written using Claude Code, with extensive back-and-forth about wording. The following description is written by Claude (also with extensive back and forth). Because I've been carefully reading everything the whole way through, I know what this change is exactly. Nonetheless, I'll review it again before marking it non-draft and merging it.