Catches the bot-generated-structurally-invalid-Go class that took
staging Platform(Go) red for hours on 2026-04-22 (PR #1769 commit
66ea0b64 nested a function declaration inside another function's body).
The patch tool applied it; the Go parser rejected it; every Go PR
targeting staging during the window failed CI through no fault of its
own.
Hook now runs `cd workspace-server && go build ./...` when any .go
file in workspace-server/ is staged. If the build fails, commit is
rejected with the first 20 lines of build output. Skip-with-warning
when go isn't installed (CI runners + bots without go bypass cleanly).
Cost: ~5-10s per commit that touches Go on a warm cache. Acceptable
for the class of bug it catches — the alternative (catch at PR-time
via CI) is too late, the malformed commit is already shared.
This is one of the three guards proposed in #1770. The other two
(branch-protection on `Platform (Go)` as required check; SHARED_RULES
clarification on bot-PR overrides) are admin / process changes that
need your action.
Closes the pre-commit half of #1770. Branch-protection + SHARED_RULES
work tracks separately.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
157 lines
7.9 KiB
Bash
Executable File
157 lines
7.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Pre-commit hook — enforces Molecule AI codebase conventions.
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# Install: git config core.hooksPath .githooks
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#
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# Checks run ONLY on staged files to keep commits fast.
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# If any check fails, the commit is rejected — the agent must fix it.
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set -euo pipefail
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ERRORS=0
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# ──────────────────────────────────────────────────────────
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# 1. Canvas: 'use client' directive on hook-using components
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# ──────────────────────────────────────────────────────────
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STAGED_TSX=$(git diff --cached --name-only --diff-filter=ACM | grep '\.tsx$' | grep 'canvas/src/' || true)
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if [ -n "$STAGED_TSX" ]; then
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for f in $STAGED_TSX; do
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# Skip test files
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if echo "$f" | grep -q "__tests__\|\.test\."; then
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continue
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fi
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# Check if file uses hooks/handlers
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if grep -qE "useState|useEffect|useCallback|useMemo|useRef|useStore|onClick|onChange" "$f" 2>/dev/null; then
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# Check if 'use client' is in the first 3 lines
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if ! head -3 "$f" | grep -qE "use client" 2>/dev/null; then
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echo "❌ MISSING 'use client': $f"
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echo " This file uses React hooks but lacks the 'use client' directive."
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echo " Add \"'use client';\" as the very first line."
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ERRORS=$((ERRORS + 1))
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fi
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fi
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done
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fi
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# ──────────────────────────────────────────────────────────
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# 2. Canvas: No light theme colors in new/changed components
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# ──────────────────────────────────────────────────────────
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if [ -n "$STAGED_TSX" ]; then
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for f in $STAGED_TSX; do
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# Check staged diff (not full file) for white/light colors
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DIFF=$(git diff --cached "$f" | grep '^+' | grep -v '^+++' || true)
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if echo "$DIFF" | grep -qiE 'background:\s*#fff|background:\s*white|bg-white|bg-gray-[12]00' 2>/dev/null; then
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echo "⚠️ LIGHT THEME COLOR in $f — use zinc-900/950 backgrounds, not white/gray"
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ERRORS=$((ERRORS + 1))
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fi
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done
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fi
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STAGED_CSS=$(git diff --cached --name-only --diff-filter=ACM | grep '\.css$' | grep 'canvas/src/' || true)
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if [ -n "$STAGED_CSS" ]; then
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for f in $STAGED_CSS; do
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DIFF=$(git diff --cached "$f" | grep '^+' | grep -v '^+++' || true)
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if echo "$DIFF" | grep -qiE 'background:\s*#fff|background:\s*white' 2>/dev/null; then
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echo "⚠️ LIGHT THEME COLOR in $f — use zinc-900 (#18181b), not white"
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ERRORS=$((ERRORS + 1))
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fi
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done
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fi
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# ──────────────────────────────────────────────────────────
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# 3. Python: No bare except pass (silent swallowing)
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# ──────────────────────────────────────────────────────────
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STAGED_PY=$(git diff --cached --name-only --diff-filter=ACM | grep '\.py$' | grep 'workspace/' || true)
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if [ -n "$STAGED_PY" ]; then
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for f in $STAGED_PY; do
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DIFF=$(git diff --cached "$f" | grep '^+' | grep -v '^+++' || true)
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if echo "$DIFF" | grep -qE '^\+\s*except.*:\s*$' 2>/dev/null; then
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NEXT_LINE=$(echo "$DIFF" | grep -A1 '^\+\s*except.*:\s*$' | tail -1)
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if echo "$NEXT_LINE" | grep -qE '^\+\s*pass\s*$' 2>/dev/null; then
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echo "⚠️ SILENT EXCEPTION SWALLOW in $f — add logger.debug() instead of bare 'pass'"
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fi
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fi
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done
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fi
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# ──────────────────────────────────────────────────────────
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# 4. Go: No string-concatenated SQL
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# ──────────────────────────────────────────────────────────
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STAGED_GO=$(git diff --cached --name-only --diff-filter=ACM | grep '\.go$' | grep 'workspace-server/' || true)
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if [ -n "$STAGED_GO" ]; then
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for f in $STAGED_GO; do
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DIFF=$(git diff --cached "$f" | grep '^+' | grep -v '^+++' || true)
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if echo "$DIFF" | grep -qE 'fmt\.Sprintf.*SELECT|fmt\.Sprintf.*INSERT|fmt\.Sprintf.*UPDATE|fmt\.Sprintf.*DELETE' 2>/dev/null; then
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echo "❌ SQL INJECTION RISK in $f — use parameterized queries (\$1, \$2), not fmt.Sprintf"
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ERRORS=$((ERRORS + 1))
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fi
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done
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fi
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# ──────────────────────────────────────────────────────────
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# 5. Go: build check — catches bot-generated structurally-invalid Go (#1770)
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# ──────────────────────────────────────────────────────────
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#
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# Background: bot agents have produced syntactically-broken Go that the
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# patch tool happily applied (e.g. PR #1769 commit 66ea0b64 — function
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# declaration nested inside another function's body). Compilation failed,
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# staging Platform(Go) was red for hours. CI catches this AT PR-time but
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# by then the malformed commit is already shared.
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#
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# Pre-commit guard: when ANY .go file in workspace-server/ is staged, run
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# `go build ./...` from workspace-server. If it fails, reject the commit.
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# Cost: ~5-10s on a warm cache; acceptable for the class of bug it
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# catches. Skip when go isn't available (CI runners that need to bypass).
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if [ -n "$STAGED_GO" ]; then
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if command -v go >/dev/null 2>&1; then
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if ! (cd workspace-server && go build ./... >/tmp/precommit-go-build.log 2>&1); then
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echo "❌ GO BUILD FAILED — staged Go changes don't compile (workspace-server/)."
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echo " Output:"
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sed 's/^/ /' /tmp/precommit-go-build.log | head -20
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echo " Fix the build error before committing. See #1770 for context."
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ERRORS=$((ERRORS + 1))
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fi
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else
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# Bots and CI runners may bypass when go isn't installed — surface a
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# warning so the absence is visible, but don't block. Humans hit this
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# only if they didn't run setup.sh.
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echo "⚠️ go not installed — skipping go-build pre-commit check (#1770)"
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fi
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fi
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# ──────────────────────────────────────────────────────────
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# 6. Secrets: No tokens/keys in staged files
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# ──────────────────────────────────────────────────────────
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ALL_STAGED=$(git diff --cached --name-only --diff-filter=ACM || true)
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if [ -n "$ALL_STAGED" ]; then
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for f in $ALL_STAGED; do
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# Skip binary, known safe files, hooks, docs, and markdown
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if echo "$f" | grep -qE '\.png$|\.jpg$|\.ico$|\.woff|node_modules|\.lock$|\.githooks/|\.md$|docs/'; then
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continue
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fi
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DIFF=$(git diff --cached "$f" 2>/dev/null | grep '^+' | grep -v '^+++' || true)
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if echo "$DIFF" | grep -qE 'sk-ant-|sk-proj-|ghp_|gho_|AKIA[A-Z0-9]|mol_pk_|cfut_' 2>/dev/null; then
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echo "❌ POSSIBLE SECRET in $f — do not commit API keys or tokens"
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ERRORS=$((ERRORS + 1))
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fi
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done
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fi
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# ──────────────────────────────────────────────────────────
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# Result
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# ──────────────────────────────────────────────────────────
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if [ "$ERRORS" -gt 0 ]; then
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echo ""
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echo "🚫 Pre-commit check failed with $ERRORS error(s). Fix them and try again."
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exit 1
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fi
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