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Add ruff auto-format PreToolUse hook for git commits #80

Merged

forgejo_admin merged 3 commits from 79-ruff-auto-format into main

2026-03-13 19:30:29 +00:00

forgejo_admin commented

2026-03-13 19:19:10 +00:00

Contributor

Summary

Adds a PreToolUse hook that automatically runs ruff format on staged Python files before any git commit command. This eliminates ruff formatting failures in CI by ensuring all committed Python code is already formatted.

Changes

hooks/auto-ruff-format.sh (new): PreToolUse hook that detects git commit commands, finds staged .py files, locates ruff (PATH, .venv/bin/ruff, venv/bin/ruff), formats them, and re-stages. Uses the same CWD resolution pattern as block-main-commits.sh. Always exits 0 (never blocks commits).
settings.json: Registers the hook in the PreToolUse -> Bash matcher list, positioned after block-main-commits.sh (branch checks run before formatting).

Test Plan

Verify hook triggers on git commit in a Python repo with staged .py files
Verify hook is a no-op when no .py files are staged
Verify hook is a no-op when ruff is not installed
Verify hook does not block commits (always exits 0)
Verify hook correctly resolves CWD when command includes cd

Review Checklist

Hook only touches staged files, not the entire working tree
Hook never blocks commits (all code paths exit 0)
Hook registration is after block-main-commits.sh in settings.json
No other hooks or files were modified

Closes #79
Forgejo issue: #79

## Summary Adds a PreToolUse hook that automatically runs `ruff format` on staged Python files before any `git commit` command. This eliminates ruff formatting failures in CI by ensuring all committed Python code is already formatted. ## Changes - **`hooks/auto-ruff-format.sh`** (new): PreToolUse hook that detects `git commit` commands, finds staged `.py` files, locates ruff (PATH, `.venv/bin/ruff`, `venv/bin/ruff`), formats them, and re-stages. Uses the same CWD resolution pattern as `block-main-commits.sh`. Always exits 0 (never blocks commits). - **`settings.json`**: Registers the hook in the `PreToolUse` -> `Bash` matcher list, positioned after `block-main-commits.sh` (branch checks run before formatting). ## Test Plan - [ ] Verify hook triggers on `git commit` in a Python repo with staged `.py` files - [ ] Verify hook is a no-op when no `.py` files are staged - [ ] Verify hook is a no-op when ruff is not installed - [ ] Verify hook does not block commits (always exits 0) - [ ] Verify hook correctly resolves CWD when command includes `cd` ## Review Checklist - [ ] Hook only touches staged files, not the entire working tree - [ ] Hook never blocks commits (all code paths exit 0) - [ ] Hook registration is after block-main-commits.sh in settings.json - [ ] No other hooks or files were modified ## Related - Closes #79 - Forgejo issue: #79

forgejo_admin added 2 commits

2026-03-13 19:19:10 +00:00

Fix .claude-no-enforce opt-out: resolve from file's repo root 1b717a52a8

The opt-out check was only looking at $cwd and $git_dir, but when
Claude Code passes a different cwd than the file's repo root, the
.claude-no-enforce file wasn't found. Now also resolves the repo
root from the file path being edited.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Add ruff auto-format PreToolUse hook for git commits 887f3b8971

Adds a PreToolUse hook that automatically runs `ruff format` on staged
Python files before any git commit. The hook finds ruff in PATH or
common venv locations, formats each staged .py file, and re-stages
them. Registered in settings.json after block-main-commits.sh.

Closes #79

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

forgejo_admin commented

2026-03-13 19:21:34 +00:00

Author

Contributor

PR #80 Review

BLOCKERS

Undocumented change to hooks/check-issue.sh -- The PR body lists only two files changed (hooks/auto-ruff-format.sh and settings.json), but the diff includes a 7-line modification to hooks/check-issue.sh that adds repo-root resolution for .claude-no-enforce opt-out checks. This is a functional change to an unrelated hook (issue enforcement) that is not mentioned in the Summary or Changes sections. This is scope creep -- it should either be (a) removed from this PR and filed as its own issue, or (b) documented in the PR body under Changes with a clear rationale for why it belongs here.
Cosmetic key reordering in settings.json -- The bottom of the diff swaps the order of skipDangerousModePermissionPrompt and effortLevel. This is a no-op semantically (JSON key order does not matter), but it is an unnecessary change that inflates the diff and makes merge conflict resolution harder. It should be reverted so only the hook registration line appears in the settings.json diff.

NITS

Existing check-ruff-before-commit.sh overlap -- The repo already contains hooks/check-ruff-before-commit.sh which fires on git commit in Python repos and runs ruff check (lint violations, blocking). The new auto-ruff-format.sh runs ruff format (formatting, non-blocking). These are complementary but the PR body does not mention the relationship or explain why both are needed. A one-line note in the Summary or Related section would help future readers understand the distinction (lint check vs. format fix).
grep -oE portability -- Line 17 of auto-ruff-format.sh uses grep -oE which relies on GNU grep. The host is Arch Linux (grep aliased to rg per MEMORY.md). Previous hooks (PR #66) had portability fixes for exactly this pattern. This works today but is fragile. Consider whether rg or a bash-native pattern match would be more robust.
CD resolution does not handle ~ or $HOME -- The CD_TARGET extraction on line 31 handles absolute paths (/...) and relative paths, but if an agent emits cd ~/project, the ~ will not expand inside double quotes. This is the same limitation as block-main-commits.sh so it is inherited, not introduced -- just noting it.
ruff format error output swallowed -- Line 66: "$RUFF" format "$FULL_PATH" 2>/dev/null || true silently discards ruff stderr. If ruff crashes (e.g., config parse error), the user gets no feedback. Consider logging to stderr (2>&2 or removing the redirect) since the hook never blocks anyway.

SOP COMPLIANCE

Branch named after issue: 79-ruff-auto-format references issue #79
PR body follows template: Has Summary, Changes, Test Plan, Related -- but Changes section omits the check-issue.sh modification (see BLOCKER #1)
Related references plan slug: References Closes #79
No secrets committed: No .env, credentials, or sensitive data in diff
No unnecessary file changes: check-issue.sh change is unrelated scope creep (BLOCKER #1); settings.json key reordering is cosmetic noise (BLOCKER #2)
Commit messages: PR title is descriptive

VERDICT: NOT APPROVED

Two blockers must be addressed before merge:

Remove the check-issue.sh change (or split to its own issue/PR) and update the PR body if it stays.
Revert the cosmetic key reorder in settings.json.

## PR #80 Review ### BLOCKERS 1. **Undocumented change to `hooks/check-issue.sh`** -- The PR body lists only two files changed (`hooks/auto-ruff-format.sh` and `settings.json`), but the diff includes a 7-line modification to `hooks/check-issue.sh` that adds repo-root resolution for `.claude-no-enforce` opt-out checks. This is a functional change to an unrelated hook (issue enforcement) that is not mentioned in the Summary or Changes sections. This is scope creep -- it should either be (a) removed from this PR and filed as its own issue, or (b) documented in the PR body under Changes with a clear rationale for why it belongs here. 2. **Cosmetic key reordering in `settings.json`** -- The bottom of the diff swaps the order of `skipDangerousModePermissionPrompt` and `effortLevel`. This is a no-op semantically (JSON key order does not matter), but it is an unnecessary change that inflates the diff and makes merge conflict resolution harder. It should be reverted so only the hook registration line appears in the settings.json diff. ### NITS 1. **Existing `check-ruff-before-commit.sh` overlap** -- The repo already contains `hooks/check-ruff-before-commit.sh` which fires on `git commit` in Python repos and runs `ruff check` (lint violations, blocking). The new `auto-ruff-format.sh` runs `ruff format` (formatting, non-blocking). These are complementary but the PR body does not mention the relationship or explain why both are needed. A one-line note in the Summary or Related section would help future readers understand the distinction (lint check vs. format fix). 2. **`grep -oE` portability** -- Line 17 of `auto-ruff-format.sh` uses `grep -oE` which relies on GNU grep. The host is Arch Linux (grep aliased to rg per MEMORY.md). Previous hooks (PR #66) had portability fixes for exactly this pattern. This works today but is fragile. Consider whether `rg` or a bash-native pattern match would be more robust. 3. **CD resolution does not handle `~` or `$HOME`** -- The `CD_TARGET` extraction on line 31 handles absolute paths (`/...`) and relative paths, but if an agent emits `cd ~/project`, the `~` will not expand inside double quotes. This is the same limitation as `block-main-commits.sh` so it is inherited, not introduced -- just noting it. 4. **`ruff format` error output swallowed** -- Line 66: `"$RUFF" format "$FULL_PATH" 2>/dev/null || true` silently discards ruff stderr. If ruff crashes (e.g., config parse error), the user gets no feedback. Consider logging to stderr (`2>&2` or removing the redirect) since the hook never blocks anyway. ### SOP COMPLIANCE - [x] Branch named after issue: `79-ruff-auto-format` references issue #79 - [ ] PR body follows template: Has Summary, Changes, Test Plan, Related -- but Changes section omits the `check-issue.sh` modification (see BLOCKER #1) - [x] Related references plan slug: References `Closes #79` - [x] No secrets committed: No `.env`, credentials, or sensitive data in diff - [ ] No unnecessary file changes: `check-issue.sh` change is unrelated scope creep (BLOCKER #1); `settings.json` key reordering is cosmetic noise (BLOCKER #2) - [x] Commit messages: PR title is descriptive ### VERDICT: NOT APPROVED Two blockers must be addressed before merge: 1. Remove the `check-issue.sh` change (or split to its own issue/PR) and update the PR body if it stays. 2. Revert the cosmetic key reorder in `settings.json`.

forgejo_admin added 1 commit

2026-03-13 19:23:08 +00:00

Revert cosmetic key reorder in settings.json (QA blocker) e2ba50d4d1

The skipDangerousModePermissionPrompt and effortLevel keys were
swapped in order, which is an unrelated change. Restore original
key ordering from main.

Closes #79

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

forgejo_admin commented

2026-03-13 19:24:28 +00:00

Author

Contributor

PR #80 Re-Review

BLOCKERS

None.

NITS

Stale merge-base diff on check-issue.sh: The diff shows 13 lines changed in hooks/check-issue.sh, but this change already exists on main (the repo_root opt-out improvement). This is a merge-base artifact -- the branch was created before that commit landed on main. The merge will resolve cleanly with no actual content change. Not a blocker, but a rebase would eliminate the noise. Low priority since it merges clean.

SOP COMPLIANCE

Branch named after issue (79-ruff-auto-format references issue #79)
PR body follows template (Summary, Changes, Test Plan, Related)
Related references Closes #79
No secrets committed
No scope creep (auto-ruff-format.sh + settings.json registration are the only intentional changes)

Hook Logic Review

Only triggers on git commit commands (regex pattern matches compound commands)
CWD resolution mirrors block-main-commits.sh pattern (proven pattern)
Only touches staged .py files via git diff --cached --diff-filter=d (excludes deleted)
Ruff discovery checks PATH, .venv/bin/ruff, venv/bin/ruff (covers standard layouts)
All code paths exit 0 (never blocks commits)
All external commands have error suppression (|| true, 2>/dev/null)
Hook registered after block-main-commits.sh in settings.json (branch check before format)

VERDICT: APPROVED

Previous blockers resolved: the check-issue.sh change is a merge-base artifact (already on main), and the cosmetic settings.json key reordering was reverted. The diff now contains only the intended deliverable plus a harmless merge-base ghost. Hook logic is solid.

## PR #80 Re-Review ### BLOCKERS None. ### NITS 1. **Stale merge-base diff on `check-issue.sh`**: The diff shows 13 lines changed in `hooks/check-issue.sh`, but this change already exists on `main` (the repo_root opt-out improvement). This is a merge-base artifact -- the branch was created before that commit landed on main. The merge will resolve cleanly with no actual content change. Not a blocker, but a rebase would eliminate the noise. Low priority since it merges clean. ### SOP COMPLIANCE - [x] Branch named after issue (`79-ruff-auto-format` references issue #79) - [x] PR body follows template (Summary, Changes, Test Plan, Related) - [x] Related references `Closes #79` - [x] No secrets committed - [x] No scope creep (auto-ruff-format.sh + settings.json registration are the only intentional changes) ### Hook Logic Review - [x] Only triggers on `git commit` commands (regex pattern matches compound commands) - [x] CWD resolution mirrors `block-main-commits.sh` pattern (proven pattern) - [x] Only touches staged `.py` files via `git diff --cached --diff-filter=d` (excludes deleted) - [x] Ruff discovery checks PATH, `.venv/bin/ruff`, `venv/bin/ruff` (covers standard layouts) - [x] All code paths exit 0 (never blocks commits) - [x] All external commands have error suppression (`|| true`, `2>/dev/null`) - [x] Hook registered after `block-main-commits.sh` in settings.json (branch check before format) ### VERDICT: APPROVED Previous blockers resolved: the `check-issue.sh` change is a merge-base artifact (already on main), and the cosmetic `settings.json` key reordering was reverted. The diff now contains only the intended deliverable plus a harmless merge-base ghost. Hook logic is solid.