Files
msd-core/hooks/gsd-phase-boundary.sh
Otavio Salvador 8ca86b5e24 fix: use #!/usr/bin/env bash in community .sh hooks for distro portability
The three opt-in bash hooks (gsd-phase-boundary.sh, gsd-session-state.sh,
gsd-validate-commit.sh) shipped with #!/bin/bash, which fails on distros
that don't ship bash at /bin/bash (NixOS, minimal Alpine images, some
container runtimes). POSIX guarantees /bin/sh but not /bin/bash.

This is latent in the default install path because Claude Code wires the
hooks as `bash <path>` from settings.json (PATH-resolved — the script's
own shebang is read as a comment by bash). The fix matters when scripts
are run directly: tests, future installer changes, or manual debugging.

Changes:
- hooks/gsd-{phase-boundary,session-state,validate-commit}.sh: shebang
  switched to #!/usr/bin/env bash, matching the convention already used
  in scripts/*.sh.
- tests/bug-2136-sh-hook-version.test.cjs: assertion updated to expect
  the new shebang; comment updated to spell out the rationale.
- tests/bug-2979-hook-absolute-node.test.cjs: doc-comment updated — the
  prior wording cited "POSIX std PATH always has /bin" as the reason
  bare `bash` is OK. The actual reason is that bare `bash` is
  PATH-resolved, which is portable across distros that don't ship
  /bin/bash. POSIX std PATH guarantees /bin/sh, not /bin/bash.
- bin/install.js::buildHookCommand: comment block clarifying the same.
  No behavior change in this file — bare `bash` was already correct.
- .changeset/portable-bash-shebang-hooks.md: changeset entry.

Verified locally on NixOS:
- npm run build:hooks: hooks/dist/*.sh shebangs propagate correctly.
- node --test tests/bug-2136-*.cjs tests/bug-2979-*.cjs
  tests/bug-1817-*.cjs tests/bug-1834-*.cjs tests/bug-1906-*.cjs
  tests/bug-2557-*.cjs tests/bug-3017-*.cjs tests/security-scan.test.cjs
  tests/hooks-doc-parity.test.cjs: 126/126 pass.
- node scripts/run-tests.cjs (full suite): 6944 pass / 0 fail / 5 skip.
2026-05-06 15:41:27 -04:00

48 lines
1.8 KiB
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Executable File

#!/usr/bin/env bash
# gsd-hook-version: {{GSD_VERSION}}
# gsd-phase-boundary.sh — PostToolUse hook: detect .planning/ file writes
# Outputs a reminder when planning files are modified outside normal workflow.
# Uses Node.js for JSON parsing (always available in GSD projects, no jq dependency).
#
# OPT-IN: This hook is a no-op unless config.json has hooks.community: true.
# Enable with: "hooks": { "community": true } in .planning/config.json
# Check opt-in config — exit silently if not enabled
if [ -f .planning/config.json ]; then
ENABLED=$(node -e "try{const c=require('./.planning/config.json');process.stdout.write(c.hooks?.community===true?'1':'0')}catch{process.stdout.write('0')}" 2>/dev/null)
if [ "$ENABLED" != "1" ]; then exit 0; fi
else
exit 0
fi
INPUT=$(cat)
# Extract file_path from JSON using Node (handles escaping correctly)
FILE=$(echo "$INPUT" | node -e "let d='';process.stdin.on('data',c=>d+=c);process.stdin.on('end',()=>{try{process.stdout.write(JSON.parse(d).tool_input?.file_path||'')}catch{}})" 2>/dev/null)
# Emit a structured JSON envelope (#2974). additionalContext carries the
# user-visible reminder text; the typed `planning_modified` boolean and
# `file_path` let tests assert on the structured contract without grepping.
PLANNING_MODIFIED="false"
if [[ "$FILE" == *.planning/* ]] || [[ "$FILE" == .planning/* ]]; then
PLANNING_MODIFIED="true"
fi
if [ "$PLANNING_MODIFIED" = "true" ]; then
node -e '
const file = process.argv[1];
const additionalContext = ".planning/ file modified: " + file + "\n" +
"Check: Should STATE.md be updated to reflect this change?";
process.stdout.write(JSON.stringify({
hookSpecificOutput: {
hookEventName: "PostToolUse",
additionalContext,
planning_modified: true,
file_path: file,
},
}));
' "$FILE"
fi
exit 0