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Garry TanandClaude Fable 5.1
6259b37e48
remove-source used to inspect only entries still carrying the _gstack_source tag. Claude Code strips that tag when it rewrites settings.json, so an off switch built on remove-source alone silently no-oped on exactly the entries it was written for. Removal is now driven by KNOWN_HOOKS identity for the requested source (tagged or not), keeps the tagged-single-item legacy-stray rule, never touches another source's items, and leaves entries with nothing of ours byte-identical. list-items is the read-only view of the same identity table: one JSON string literal per matching hook command, filters (--owned-by, --command-regex as a JavaScript RegExp) applied inside the JS, empty stdout for no match, and the mutating verbs' exit codes (1 usage, 3 unparseable settings, 4 unexpected shape) so callers can decide mutations from its output without parsing raw command strings. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
929 lines
43 KiB
Bash
Executable File
929 lines
43 KiB
Bash
Executable File
#!/usr/bin/env bash
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# gstack-settings-hook — manage Claude Code hooks in ~/.claude/settings.json
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#
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# Three shapes:
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#
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# 1. Legacy (SessionStart only — kept so old installs still clean up):
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# gstack-settings-hook add <cmd> # adds SessionStart hook
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# gstack-settings-hook remove <cmd> # removes gstack-session-update items
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# # (the <cmd> arg is accepted for
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# # interface compat; matching is by
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# # the gstack-session-update basename)
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#
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# 2. Schema-aware (plan-tune cathedral T3):
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# gstack-settings-hook add-event --event <name — see the validator in add-event> \
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# --command <cmd> --source <tag> [--matcher <regex>] [--timeout <s>]
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# gstack-settings-hook ensure-event --event ... --command ... --source ... [--matcher ...] [--timeout <s>]
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# gstack-settings-hook remove-source --source <tag> # removes items the table identifies as <tag>'s, tagged or not
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# gstack-settings-hook diff-event --event ... --command ... --source ... [--matcher ...]
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# gstack-settings-hook rollback # restore latest backup (single-step undo)
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# gstack-settings-hook list-sources # show all gstack-tagged hook entries
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# gstack-settings-hook list-items --event <name> [--owned-by <tag>] [--command-regex <js-re>]
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# # read-only: one JSON string literal per matching hook COMMAND
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# # (identity via KNOWN_HOOKS, never the tag); empty stdout = none
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#
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# 3. Self-heal (phantom-hooks fix):
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# gstack-settings-hook prune-stale # prune dead gstack hook items
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# gstack-settings-hook prune-stale --repoint <root> # re-point gstack items at <root>, prune still-dead
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# gstack-settings-hook prune-stale --all # remove ALL gstack hook items (uninstall sweep)
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#
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# ensure-event is the update-in-place verb: same flags as add-event, but keyed
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# on (event, source) — any entry carrying our source tag for the event is THE
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# registration to compare/update, so a matcher change re-points in place
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# instead of pushing a second entry, and duplicate same-source twins from the
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# old matcher-keyed dedup collapse to one (reported on stderr). Identical
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# payload → no write, no backup ("unchanged"); a re-run of ./setup stays a
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# true no-op. This heals a stale absolute hook path (e.g. a deleted dev
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# worktree) baked into settings.json by an earlier setup.
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#
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# Ownership model (KNOWN_HOOKS identity table): a hook ITEM is gstack-owned iff
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# its command basename + relpath suffix + event (+ matcher where the table row
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# defines one) match a table row. Entry-level `_gstack_source` tags are
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# best-effort metadata — Claude Code strips unknown keys when it rewrites
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# settings.json, so identity is intrinsic (the table), never tag-only. A tag
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# NEVER claims foreign items: in a tagged multi-item entry, unrecognized items
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# are always preserved; only a tagged SINGLE-item entry with no table match is
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# treated as an owned legacy stray.
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#
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# Mutation safety:
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# - every mutation runs under a mkdir lock (<settings>.lock/) with an owner
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# token; release is ownership-checked; stale locks (>30s) are taken over
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# via atomic rename. On lock give-up the mutation is SKIPPED with a warning
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# (the next setup retries — the system is convergent).
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# - parse failure fails CLOSED: a corrupt settings.json is never overwritten
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# (only ENOENT starts fresh). Exit 3.
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# - backup-on-change: a backup (unique name, .bak-latest pointer) is written
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# only when the file content actually changes. No-op mutations are silent
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# on disk. `rollback` is a single-step undo of the last real mutation.
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# - writes are atomic: unique tmp file + rename (a fixed tmp name would let
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# two concurrent writers rename a half-written file into place).
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# Heredoc delivery guard. bash 5.2+ writes a heredoc body <=64KiB through a
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# pipe in the forked child before exec, with no reader on the other end. On
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# macOS under pipe-KVA pressure a fresh pipe gets a 512-byte buffer, so any
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# body >=512B blocks write() forever and the script hangs at startup with no
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# output. Compat level 50 restores the tempfile path. These scripts are
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# bash-3.2-clean, so the compat level costs them nothing. Not exported: the
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# guard is per-script, and it survives `bash script.sh` call sites that
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# bypass the shebang.
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BASH_COMPAT=50
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set -euo pipefail
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ACTION="${1:-}"
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SETTINGS_FILE="${GSTACK_SETTINGS_FILE:-${CLAUDE_CONFIG_DIR:-$HOME/.claude}/settings.json}"
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if [ -z "$ACTION" ]; then
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cat <<EOF >&2
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Usage:
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gstack-settings-hook add <hook-command> # legacy SessionStart add
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gstack-settings-hook remove <hook-command> # legacy SessionStart remove
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gstack-settings-hook add-event --event <name> --command <cmd> --source <tag> [--matcher <re>] [--timeout <s>]
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gstack-settings-hook ensure-event --event <name> --command <cmd> --source <tag> [--matcher <re>] [--timeout <s>]
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gstack-settings-hook remove-source --source <tag> # tagged OR table-identified items of <tag>
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gstack-settings-hook diff-event --event <name> --command <cmd> --source <tag> [--matcher <re>] [--timeout <s>]
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gstack-settings-hook prune-stale [--repoint <root>] [--all]
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gstack-settings-hook rollback
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gstack-settings-hook list-sources
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gstack-settings-hook list-items --event <name> [--owned-by <tag>] [--command-regex <js-re>]
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EOF
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exit 1
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fi
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if ! command -v bun >/dev/null 2>&1; then
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echo "Error: bun is required but not installed." >&2
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exit 1
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fi
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# ─── Shared JS prelude ────────────────────────────────────────────────
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# Single source of truth for the KNOWN_HOOKS identity table and the
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# ownership/liveness/IO helpers, interpolated into EVERY bun -e script as
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# bun -e "$_HOOK_JS_PRELUDE"' <single-quoted body>'
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# so the dedupe key and the prune predicate cannot drift. The prelude MUST NOT
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# contain single quotes (this assignment is single-quoted).
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_HOOK_JS_PRELUDE='
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// Umbrella fail-closed guard: bun in -e mode swallows uncaught exceptions
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// thrown after a require() call and exits 0 (verified on bun 1.3.13;
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// uncaughtException handlers never fire in -e mode either). Every script body
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// below runs inside gsMain so a runtime throw becomes a LOUD exit 4 instead
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// of a silent success that reports a mutation as clean.
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function gsMain(fn) {
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try {
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fn();
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} catch (e) {
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process.stderr.write("gstack-settings-hook: internal error (" + (e && e.message) + ") -- refusing to mutate\n");
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process.exit(4);
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}
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}
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var KNOWN_HOOKS = {
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"question-log-hook": { source: "plan-tune-cathedral", event: "PostToolUse", matcher: "(AskUserQuestion|mcp__.*__AskUserQuestion)", relpath: "hosts/claude/hooks/question-log-hook" },
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"question-preference-hook": { source: "plan-tune-cathedral", event: "PreToolUse", matcher: "(AskUserQuestion|mcp__.*__AskUserQuestion)", relpath: "hosts/claude/hooks/question-preference-hook" },
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"auq-error-fallback-hook": { source: "auq-error-fallback", event: "PostToolUse", matcher: "(AskUserQuestion|mcp__.*__AskUserQuestion)", relpath: "hosts/claude/hooks/auq-error-fallback-hook" },
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"timeline-stop-hook": { source: "gstack-timeline-stop", event: "Stop", matcher: "", relpath: "hosts/claude/hooks/timeline-stop-hook" },
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"memorable-user-prompt-hook": { source: "gstack-memorable", event: "UserPromptSubmit", matcher: "", relpath: "hosts/claude/hooks/memorable-user-prompt-hook" },
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"gstack-session-update": { source: "gstack-session-update", event: "SessionStart", matcher: "", relpath: "bin/gstack-session-update" },
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"gstack-verify-gate": { source: "verify-gate", event: "Stop", matcher: "", relpath: "bin/gstack-verify-gate" }
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};
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function gsHadBashPrefix(c) { return String(c == null ? "" : c).trim().indexOf("bash ") === 0; }
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function gsStripWrap(c) {
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var s = String(c == null ? "" : c).trim();
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if (s.indexOf("bash ") === 0) s = s.slice(5).trim();
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if (s.length >= 2 && s.charAt(0) === "\"" && s.charAt(s.length - 1) === "\"") {
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// Unescape the gsQuoteCmd form so a re-pointed escaped command is still
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// recognized as ours on later passes (identity round-trips).
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s = s.slice(1, -1).replace(/\\([\\"$\x60])/g, "$1");
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}
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// Separator normalization is Windows-only (a rare-but-legal Unix path
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// containing a backslash must not be rewritten and mis-stat-ed).
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if (process.platform === "win32" || /^[A-Za-z]:[\\\/]/.test(s)) {
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s = s.replace(/\\/g, "/");
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}
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return s;
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}
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function gsBaseOf(c) { var p = gsStripWrap(c); return p.split("/").pop(); }
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function gsOwnedRow(cmd, event, matcher) {
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var p = gsStripWrap(cmd);
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var b = p.split("/").pop();
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// hasOwnProperty guard: a foreign hook basename like "toString" or
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// "constructor" must not resolve to an inherited Object.prototype member.
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var row = Object.prototype.hasOwnProperty.call(KNOWN_HOOKS, b) ? KNOWN_HOOKS[b] : null;
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if (!row) return null;
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if (p !== row.relpath && p.slice(-(row.relpath.length + 1)) !== "/" + row.relpath) return null;
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if (row.event !== event) return null;
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if (row.matcher && (matcher || "") !== row.matcher) return null;
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return row;
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}
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function gsWinPath(p) {
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// Git Bash writes MSYS-form paths (/c/Users/...) into settings.json, but
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// native bun resolves them drive-relative (C:\c\Users\...) -- translate for
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// fs calls only; stored commands keep the form the firing shell expects.
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if (process.platform === "win32" && /^\/[A-Za-z]\//.test(p)) {
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return p.charAt(1) + ":" + p.slice(2);
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}
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return p;
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}
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function gsIsAlive(cmd) {
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var fs = require("fs");
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var p = gsWinPath(gsStripWrap(cmd));
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if (!p) return false;
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try {
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if (process.platform === "win32") return fs.existsSync(p);
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var st = fs.statSync(p);
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if (!st.isFile()) return false;
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fs.accessSync(p, fs.constants.X_OK);
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return true;
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} catch (e) {
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// Only provable absence counts as dead. EACCES/EIO/unmounted-volume
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// errors are transient unreachability -- pruning on those would be a
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// one-way ratchet, so conservatively treat the item as alive.
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var code = e && e.code;
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return !(code === "ENOENT" || code === "ENOTDIR");
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}
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}
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function gsQuoteCmd(target, hadBash) {
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// Shell-metacharacter hardening: the command string is executed by a shell
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// when Claude Code fires the hook, so a path containing $, backtick (x60 --
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// written as an escape so the prelude itself stays backtick-free), or a
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// quote must be neutralized, not just space-wrapped.
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var needsQuote = /[\s$\x60"\\]/.test(target);
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var quoted = needsQuote
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? "\"" + target.replace(/[\\"$\x60]/g, function (ch) { return "\\" + ch; }) + "\""
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: target;
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return (hadBash ? "bash " : "") + quoted;
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}
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function gsRotateBackups(settingsPath, keep) {
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// Backup files are change-gated but unbounded across months of setups --
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// keep the most recent N so ~/.claude does not accumulate forever.
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var fs = require("fs");
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var path = require("path");
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try {
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var dir = path.dirname(settingsPath);
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var base = path.basename(settingsPath) + ".bak.";
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var baks = fs.readdirSync(dir)
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.filter(function (f) { return f.indexOf(base) === 0; })
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.map(function (f) {
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var full = path.join(dir, f);
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var m = 0;
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try { m = fs.statSync(full).mtimeMs; } catch (e3) {}
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return { full: full, m: m };
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})
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.sort(function (a, b) { return a.m - b.m; });
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for (var i = 0; i < baks.length - keep; i++) {
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try { fs.unlinkSync(baks[i].full); } catch (e2) {}
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}
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} catch (e) {}
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}
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function gsLoadSettings(path) {
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var fs = require("fs");
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var raw = null;
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try { raw = fs.readFileSync(path, "utf8"); }
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catch (e) {
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if (e && e.code === "ENOENT") return { settings: {}, existed: false };
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process.stderr.write("gstack-settings-hook: cannot read " + path + ": " + e.message + " -- refusing to mutate\n");
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process.exit(3);
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}
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try { return { settings: JSON.parse(raw), existed: true }; }
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catch (e) {
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process.stderr.write("gstack-settings-hook: " + path + " is not valid JSON (" + e.message + ") -- refusing to mutate; fix or restore it (.bak files / rollback)\n");
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process.exit(3);
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}
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}
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function gsWriteIfChanged(path, beforeText, settings, existed) {
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var fs = require("fs");
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var afterText = JSON.stringify(settings, null, 2);
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if (afterText === beforeText) return false;
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// Preserve the live file mode across the tmp+rename (settings.json can
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// carry API keys in its env block -- a user-tightened 0600 must never be
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// silently broadened to the default 0644). Fresh files start 0600.
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var mode = 0o600;
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if (existed) {
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try { mode = fs.statSync(path).mode & 0o777; } catch (e) {}
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fs.copyFileSync(path, process.env.GSTACK_BACKUP_PATH);
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fs.writeFileSync(process.env.GSTACK_BAK_LATEST, process.env.GSTACK_BACKUP_PATH + "\n");
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gsRotateBackups(path, 10);
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}
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var tmp = process.env.GSTACK_TMP_PATH;
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fs.writeFileSync(tmp, afterText + "\n");
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try { fs.chmodSync(tmp, mode); } catch (e) {}
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fs.renameSync(tmp, path);
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return true;
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}
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'
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# ─── Mutation lock ────────────────────────────────────────────────────
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# Accepted tradeoffs (adversarial-reviewed): (1) the lock serializes gstack
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# writers only -- Claude Code rewrites settings.json without honoring it, so a
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# lost update against a live session remains possible (convergent: the next
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# heal repairs); (2) stale takeover is mtime-based -- a holder legitimately
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# slower than the stale window can be stolen from, and a fresh crash stalls
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# callers for the give-up window. PID-aware takeover was considered and
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# deferred (owner file already carries $$ if it becomes worth it).
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_LOCK_DIR="$SETTINGS_FILE.lock"
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_LOCK_TOKEN=""
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_release_lock() {
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if [ -n "$_LOCK_TOKEN" ] && [ -d "$_LOCK_DIR" ]; then
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# Ownership-checked: never remove a lock another process re-acquired
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# after a stale takeover.
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_OWNER_CONTENT="$(cat "$_LOCK_DIR/owner" 2>/dev/null || true)"
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if [ "$_OWNER_CONTENT" = "$_LOCK_TOKEN" ] || [ -z "$_OWNER_CONTENT" ]; then
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rm -rf "$_LOCK_DIR" 2>/dev/null || true
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fi
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fi
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_LOCK_TOKEN=""
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}
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_acquire_lock() {
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# GSTACK_SETTINGS_LOCK_TIMEOUT_MS: test-only override for the give-up
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# (a contention test should not stall the suite for 10 real seconds).
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local waited_ms=0 token stale mtime now
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local give_up_ms="${GSTACK_SETTINGS_LOCK_TIMEOUT_MS:-10000}"
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local stale_after_s=30 # lock older than this belongs to a crashed holder
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local poll_ms=50 # retry cadence; sleep below derives from this
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token="$$-$RANDOM$RANDOM"
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while :; do
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if mkdir "$_LOCK_DIR" 2>/dev/null; then
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printf '%s\n' "$token" > "$_LOCK_DIR/owner" 2>/dev/null || true
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_LOCK_TOKEN="$token"
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trap _release_lock EXIT
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trap 'exit 129' INT
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trap 'exit 143' TERM
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return 0
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fi
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# mkdir failed but no lock dir exists: NOT contention (unwritable parent,
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# read-only fs, missing directory) -- waiting cannot help, so give up
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# loudly now instead of spinning out the full timeout. (Tiny race: a
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# contender could acquire+release between our mkdir and this check; that
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# transient reads as an environment failure and the next run converges.)
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if [ ! -e "$_LOCK_DIR" ]; then
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echo "gstack-settings-hook: cannot create lock $_LOCK_DIR (unwritable parent?) -- skipping this mutation, exit 5" >&2
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return 1
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fi
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# Stale takeover: atomic rename means exactly one contender wins; the
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# loser loops and re-contends against the winner's fresh mkdir.
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# GNU stat (-c %Y) first: on Linux, BSD-style `stat -f %m` prints a
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# multi-line FILESYSTEM block to stdout before failing, and the || chain
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# would capture that garbage alongside the real epoch. BSD stat rejects
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# -c with no stdout, so macOS falls through cleanly. The numeric guard
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# below makes any residual garbage inert (no takeover, normal give-up)
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# instead of an arithmetic abort under set -e.
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mtime=$(stat -c %Y "$_LOCK_DIR" 2>/dev/null || stat -f %m "$_LOCK_DIR" 2>/dev/null || echo "")
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case "$mtime" in *[!0-9]*) mtime="" ;; esac
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now=$(date +%s)
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if [ -n "$mtime" ] && [ $(( now - mtime )) -gt "$stale_after_s" ]; then
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stale="$_LOCK_DIR.stale.$$-$RANDOM"
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if mv "$_LOCK_DIR" "$stale" 2>/dev/null; then rm -rf "$stale" 2>/dev/null || true; fi
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continue
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fi
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if [ "$waited_ms" -ge "$give_up_ms" ]; then
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echo "gstack-settings-hook: could not acquire lock $_LOCK_DIR -- skipping this mutation, exit 5 (the next setup retries it)" >&2
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return 1
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fi
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sleep "$(printf '0.%03d' "$poll_ms")"
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waited_ms=$(( waited_ms + poll_ms ))
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done
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}
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# Per-invocation unique backup + tmp paths, exported for gsWriteIfChanged.
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_mutation_env() {
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GSTACK_BACKUP_PATH="$SETTINGS_FILE.bak.$(date +%Y%m%d-%H%M%S).$$.$RANDOM"
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GSTACK_BAK_LATEST="$SETTINGS_FILE.bak-latest"
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GSTACK_TMP_PATH="$SETTINGS_FILE.tmp.$$.$RANDOM"
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export GSTACK_BACKUP_PATH GSTACK_BAK_LATEST GSTACK_TMP_PATH
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}
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case "$ACTION" in
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# --- legacy SessionStart add/remove (backwards compat) -----------------
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add)
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HOOK_CMD="${2:-}"
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if [ -z "$HOOK_CMD" ]; then
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echo "Usage: gstack-settings-hook add <hook-command>" >&2
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exit 1
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fi
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_acquire_lock || exit 5
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_mutation_env
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GSTACK_SETTINGS_PATH="$SETTINGS_FILE" GSTACK_HOOK_CMD="$HOOK_CMD" bun -e "$_HOOK_JS_PRELUDE"'gsMain(function () {
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const settingsPath = process.env.GSTACK_SETTINGS_PATH;
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const hookCmd = process.env.GSTACK_HOOK_CMD;
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const loaded = gsLoadSettings(settingsPath);
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const settings = loaded.settings;
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const before = JSON.stringify(settings, null, 2);
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if (!settings.hooks) settings.hooks = {};
|
|
if (!settings.hooks.SessionStart) settings.hooks.SessionStart = [];
|
|
const exists = settings.hooks.SessionStart.some(entry =>
|
|
entry.hooks && entry.hooks.some(h => h.command && h.command.includes("gstack-session-update"))
|
|
);
|
|
if (!exists) {
|
|
settings.hooks.SessionStart.push({
|
|
hooks: [{ type: "command", command: hookCmd }]
|
|
});
|
|
}
|
|
gsWriteIfChanged(settingsPath, before, settings, loaded.existed);
|
|
});
|
|
'
|
|
;;
|
|
|
|
remove)
|
|
HOOK_CMD="${2:-}"
|
|
if [ -z "$HOOK_CMD" ]; then
|
|
echo "Usage: gstack-settings-hook remove <hook-command>" >&2
|
|
exit 1
|
|
fi
|
|
[ -f "$SETTINGS_FILE" ] || exit 1
|
|
_acquire_lock || exit 5
|
|
_mutation_env
|
|
GSTACK_SETTINGS_PATH="$SETTINGS_FILE" bun -e "$_HOOK_JS_PRELUDE"'gsMain(function () {
|
|
const settingsPath = process.env.GSTACK_SETTINGS_PATH;
|
|
const loaded = gsLoadSettings(settingsPath);
|
|
const settings = loaded.settings;
|
|
const before = JSON.stringify(settings, null, 2);
|
|
if (settings.hooks && settings.hooks.SessionStart) {
|
|
// Item-aware: remove only matching hook items; foreign items in the
|
|
// same entry survive; an entry is dropped ONLY when this pass emptied
|
|
// it. Malformed/foreign entries (hooks absent, non-array, or already
|
|
// empty) are preserved verbatim -- they are not ours to judge.
|
|
settings.hooks.SessionStart = settings.hooks.SessionStart
|
|
.filter(entry => {
|
|
if (!Array.isArray(entry.hooks)) return true;
|
|
const beforeLen = entry.hooks.length;
|
|
entry.hooks = entry.hooks.filter(h =>
|
|
!(h && h.command && h.command.includes("gstack-session-update"))
|
|
);
|
|
if (entry.hooks.length === 0 && beforeLen > 0) return false;
|
|
return true;
|
|
});
|
|
if (settings.hooks.SessionStart.length === 0) delete settings.hooks.SessionStart;
|
|
if (Object.keys(settings.hooks).length === 0) delete settings.hooks;
|
|
}
|
|
gsWriteIfChanged(settingsPath, before, settings, loaded.existed);
|
|
});
|
|
'
|
|
;;
|
|
|
|
add-event|diff-event|ensure-event)
|
|
EVENT=""
|
|
COMMAND=""
|
|
SOURCE=""
|
|
MATCHER=""
|
|
TIMEOUT=""
|
|
shift
|
|
while [ $# -gt 0 ]; do
|
|
case "$1" in
|
|
--event) EVENT="$2"; shift 2 ;;
|
|
--command) COMMAND="$2"; shift 2 ;;
|
|
--source) SOURCE="$2"; shift 2 ;;
|
|
--matcher) MATCHER="$2"; shift 2 ;;
|
|
--timeout) TIMEOUT="$2"; shift 2 ;;
|
|
*) echo "unknown flag: $1" >&2; exit 1 ;;
|
|
esac
|
|
done
|
|
if [ -z "$EVENT" ] || [ -z "$COMMAND" ] || [ -z "$SOURCE" ]; then
|
|
echo "add-event/ensure-event/diff-event require --event, --command, --source" >&2
|
|
exit 1
|
|
fi
|
|
case "$EVENT" in
|
|
SessionStart|PreToolUse|PostToolUse|UserPromptSubmit|Stop|Notification) ;;
|
|
*) echo "invalid --event '$EVENT'; must be one of SessionStart|PreToolUse|PostToolUse|UserPromptSubmit|Stop|Notification" >&2; exit 1 ;;
|
|
esac
|
|
DIFF_ONLY=""
|
|
ENSURE=""
|
|
if [ "$ACTION" = "diff-event" ]; then
|
|
DIFF_ONLY=1
|
|
else
|
|
[ "$ACTION" = "ensure-event" ] && ENSURE=1
|
|
_acquire_lock || exit 5
|
|
fi
|
|
_mutation_env
|
|
GSTACK_SETTINGS_PATH="$SETTINGS_FILE" \
|
|
GSTACK_EVENT="$EVENT" \
|
|
GSTACK_COMMAND="$COMMAND" \
|
|
GSTACK_SOURCE="$SOURCE" \
|
|
GSTACK_MATCHER="$MATCHER" \
|
|
GSTACK_TIMEOUT="$TIMEOUT" \
|
|
GSTACK_DIFF_ONLY="$DIFF_ONLY" \
|
|
GSTACK_ENSURE="$ENSURE" \
|
|
bun -e "$_HOOK_JS_PRELUDE"'gsMain(function () {
|
|
const settingsPath = process.env.GSTACK_SETTINGS_PATH;
|
|
const event = process.env.GSTACK_EVENT;
|
|
const cmd = process.env.GSTACK_COMMAND;
|
|
const source = process.env.GSTACK_SOURCE;
|
|
const matcher = process.env.GSTACK_MATCHER || "";
|
|
const timeoutRaw = process.env.GSTACK_TIMEOUT || "";
|
|
const diffOnly = process.env.GSTACK_DIFF_ONLY === "1";
|
|
const ensure = process.env.GSTACK_ENSURE === "1";
|
|
|
|
const loaded = gsLoadSettings(settingsPath);
|
|
const settings = loaded.settings;
|
|
const before = JSON.stringify(settings, null, 2);
|
|
|
|
if (!settings.hooks) settings.hooks = {};
|
|
if (!settings.hooks[event]) settings.hooks[event] = [];
|
|
|
|
// add-event is the single quoting authority: normalize the command
|
|
// through the same round-trip the healer uses so metachar paths are
|
|
// registered in the escaped-quoted form from the start (a caller-side
|
|
// quoting step would drift per call site).
|
|
const cmdNorm = gsQuoteCmd(gsStripWrap(cmd), gsHadBashPrefix(cmd));
|
|
const hookEntry = { type: "command", command: cmdNorm };
|
|
if (timeoutRaw) {
|
|
const n = Number(timeoutRaw);
|
|
if (Number.isFinite(n) && n > 0) hookEntry.timeout = n;
|
|
}
|
|
|
|
// Identity is item-level and two-layer:
|
|
// - a same-event entry carrying OUR source tag is ours even under a
|
|
// DIFFERENT matcher (a matcher change must re-point in place, never
|
|
// push a second registration -- the old matcher-keyed dedupe
|
|
// duplicated the entry on every matcher change), and
|
|
// - a same-matcher entry containing our exact command or a table-owned
|
|
// item with our basename is OUR registration under a stale path
|
|
// (Claude Code strips _gstack_source on its own rewrites, so
|
|
// tag-based dedupe degrades).
|
|
// A tag never claims foreign items: in a multi-item entry only the
|
|
// identified item is touched; entries where no item can be identified
|
|
// as ours are left alone entirely.
|
|
const ourItemIdx = (entry) => {
|
|
if (!Array.isArray(entry.hooks)) return -1;
|
|
let idx = entry.hooks.findIndex(h => h && h.command === cmdNorm);
|
|
if (idx < 0) {
|
|
idx = entry.hooks.findIndex(h => {
|
|
if (!h || !h.command) return false;
|
|
const row = gsOwnedRow(h.command, event, entry.matcher || "");
|
|
return !!row && gsBaseOf(h.command) === gsBaseOf(cmdNorm);
|
|
});
|
|
}
|
|
if (idx < 0 && entry._gstack_source === source && entry.hooks.length === 1 && entry.hooks[0] && entry.hooks[0].command) idx = 0;
|
|
return idx;
|
|
};
|
|
const cands = [];
|
|
for (const entry of settings.hooks[event]) {
|
|
const idx = ourItemIdx(entry);
|
|
if (idx < 0) continue;
|
|
if (entry._gstack_source === source || (entry.matcher || "") === matcher) cands.push({ entry: entry, idx: idx });
|
|
}
|
|
|
|
let placed = false;
|
|
let collapsed = 0;
|
|
if (cands.length > 0) {
|
|
const primary = cands[0];
|
|
if ((primary.entry.matcher || "") === matcher) {
|
|
primary.entry.hooks[primary.idx] = hookEntry;
|
|
// Mixed-version ratchet guard: tag ONLY single-item entries (the
|
|
// item we just placed). Old gstack versions in sibling worktrees do
|
|
// entry-level ownership (remove-source deletes the whole tagged
|
|
// entry; add-event clobbers entry.hooks wholesale) -- a tag on a
|
|
// mixed entry hands them permission to destroy the user items in it.
|
|
if (primary.entry.hooks.length === 1) primary.entry._gstack_source = source;
|
|
else delete primary.entry._gstack_source;
|
|
placed = true;
|
|
} else if (primary.entry.hooks.length === 1) {
|
|
// Tagged single-item entry under a stale matcher: the entry is
|
|
// exclusively ours, so re-point payload AND matcher in place.
|
|
primary.entry.hooks = [hookEntry];
|
|
primary.entry._gstack_source = source;
|
|
if (matcher) primary.entry.matcher = matcher;
|
|
else delete primary.entry.matcher;
|
|
placed = true;
|
|
} else {
|
|
// Our item sits in a MIXED entry under a different matcher: the
|
|
// entry-level matcher also governs the foreign siblings, so pull
|
|
// our item out and register separately below.
|
|
primary.entry.hooks.splice(primary.idx, 1);
|
|
delete primary.entry._gstack_source;
|
|
}
|
|
// Duplicate registrations (e.g. same-source twins from the old
|
|
// matcher-keyed dedupe): remove OUR item from every other candidate.
|
|
for (let i = 1; i < cands.length; i++) {
|
|
cands[i].entry.hooks.splice(cands[i].idx, 1);
|
|
delete cands[i].entry._gstack_source;
|
|
collapsed++;
|
|
}
|
|
// Drop only entries WE emptied; started-empty foreign entries are
|
|
// never candidates, so they are preserved verbatim.
|
|
settings.hooks[event] = settings.hooks[event].filter(e =>
|
|
!(Array.isArray(e.hooks) && e.hooks.length === 0 && cands.some(c => c.entry === e)));
|
|
}
|
|
if (!placed) {
|
|
const newEntry = { _gstack_source: source, hooks: [hookEntry] };
|
|
if (matcher) newEntry.matcher = matcher;
|
|
settings.hooks[event].push(newEntry);
|
|
}
|
|
|
|
const after = JSON.stringify(settings, null, 2);
|
|
|
|
if (diffOnly) {
|
|
console.log("--- BEFORE");
|
|
console.log(before);
|
|
console.log("--- AFTER");
|
|
console.log(after);
|
|
process.exit(0);
|
|
}
|
|
|
|
if (ensure && before === after) {
|
|
// Registered payload already matches the canonical one -- no write,
|
|
// no backup, no churn. Re-running ./setup stays a true no-op.
|
|
console.log("OK: " + event + " hook unchanged (source: " + source + ")");
|
|
process.exit(0);
|
|
}
|
|
|
|
gsWriteIfChanged(settingsPath, before, settings, loaded.existed);
|
|
if (collapsed > 0) {
|
|
console.error("collapsed " + collapsed + " duplicate (event, source) hook entr" + (collapsed === 1 ? "y" : "ies") + " for " + event + " (source: " + source + ")");
|
|
}
|
|
if (ensure && cands.length > 0) {
|
|
console.log("OK: " + event + " hook re-pointed (source: " + source + ")");
|
|
} else {
|
|
console.log("OK: " + event + " hook registered (source: " + source + ")");
|
|
}
|
|
});
|
|
'
|
|
;;
|
|
|
|
remove-source)
|
|
SOURCE=""
|
|
shift
|
|
while [ $# -gt 0 ]; do
|
|
case "$1" in
|
|
--source) SOURCE="$2"; shift 2 ;;
|
|
*) echo "unknown flag: $1" >&2; exit 1 ;;
|
|
esac
|
|
done
|
|
if [ -z "$SOURCE" ]; then
|
|
echo "remove-source requires --source <tag>" >&2
|
|
exit 1
|
|
fi
|
|
[ -f "$SETTINGS_FILE" ] || exit 0
|
|
_acquire_lock || exit 5
|
|
_mutation_env
|
|
GSTACK_SETTINGS_PATH="$SETTINGS_FILE" GSTACK_SOURCE="$SOURCE" bun -e "$_HOOK_JS_PRELUDE"'gsMain(function () {
|
|
const settingsPath = process.env.GSTACK_SETTINGS_PATH;
|
|
const source = process.env.GSTACK_SOURCE;
|
|
const loaded = gsLoadSettings(settingsPath);
|
|
const settings = loaded.settings;
|
|
if (!settings.hooks) { console.log("OK: removed 0 hook entry/entries tagged source=" + source); process.exit(0); }
|
|
const before = JSON.stringify(settings, null, 2);
|
|
let removed = 0;
|
|
// Identity-aware removal (tag OR table). Claude Code strips the
|
|
// _gstack_source tag when it rewrites settings.json, so a tag-only
|
|
// off switch silently no-ops on exactly the entries it was written
|
|
// for. Decision per item, identity first (D = drop, K = keep):
|
|
//
|
|
// item -> | row.source == SOURCE | row of another source | no table row
|
|
// entry tagged SOURCE | D | K | D if single item, else K
|
|
// untagged / other tag | D | K | K
|
|
//
|
|
// Entries with nothing of ours stay byte-identical (tag included);
|
|
// an entry we emptied is dropped; a tagged entry we trimmed loses
|
|
// the tag with its last owned item. Callers that need every gstack
|
|
// item gone still pair this with prune-stale --all.
|
|
for (const event of Object.keys(settings.hooks)) {
|
|
const entries = settings.hooks[event];
|
|
if (!Array.isArray(entries)) continue; // foreign shape: not ours to judge
|
|
const kept = [];
|
|
for (const entry of entries) {
|
|
const tagged = !!entry && entry._gstack_source === source;
|
|
if (!entry || !Array.isArray(entry.hooks) || entry.hooks.length === 0) {
|
|
if (tagged) { removed++; continue; } // tagged but empty/malformed: legacy stray
|
|
kept.push(entry); continue;
|
|
}
|
|
const single = entry.hooks.length === 1;
|
|
let touched = 0;
|
|
const remain = entry.hooks.filter(h => {
|
|
// Command-less items cannot be ours (gstack only writes
|
|
// type:command items) -- preserve them.
|
|
const cmd = (h && typeof h.command === "string") ? h.command : "";
|
|
const row = cmd ? gsOwnedRow(cmd, event, entry.matcher || "") : null;
|
|
const ours = !!row && row.source === source;
|
|
const stray = tagged && single && !!cmd && !row;
|
|
if (ours || stray) { removed++; touched++; return false; }
|
|
return true;
|
|
});
|
|
if (touched === 0) { kept.push(entry); continue; }
|
|
if (remain.length === 0) continue;
|
|
entry.hooks = remain;
|
|
if (tagged) delete entry._gstack_source;
|
|
kept.push(entry);
|
|
}
|
|
settings.hooks[event] = kept;
|
|
if (settings.hooks[event].length === 0) delete settings.hooks[event];
|
|
}
|
|
if (Object.keys(settings.hooks).length === 0) delete settings.hooks;
|
|
gsWriteIfChanged(settingsPath, before, settings, loaded.existed);
|
|
console.log("OK: removed " + removed + " hook entry/entries tagged source=" + source);
|
|
});
|
|
'
|
|
;;
|
|
|
|
prune-stale)
|
|
REPOINT_ROOT=""
|
|
PRUNE_ALL=""
|
|
shift
|
|
while [ $# -gt 0 ]; do
|
|
case "$1" in
|
|
--repoint) REPOINT_ROOT="$2"; shift 2 ;;
|
|
--all) PRUNE_ALL=1; shift ;;
|
|
*) echo "unknown flag: $1" >&2; exit 1 ;;
|
|
esac
|
|
done
|
|
if [ -n "$REPOINT_ROOT" ] && [ -n "$PRUNE_ALL" ]; then
|
|
echo "prune-stale: --repoint and --all are mutually exclusive" >&2
|
|
exit 1
|
|
fi
|
|
if [ ! -f "$SETTINGS_FILE" ]; then
|
|
echo "OK: removed 0 gstack hook entries (repointed 0)"
|
|
exit 0
|
|
fi
|
|
# Explicit plan_tune_hooks opt-out: dead plan-tune items are still pruned,
|
|
# but live ones are never re-pointed (re-activation needs consent; removal
|
|
# of live ones is --no-team/uninstall territory).
|
|
GSTACK_PT_OPTOUT=0
|
|
# The opt-out lookup is repoint/heal-only — the --all sweep never
|
|
# re-points, and uninstall must not depend on a sibling gstack-config.
|
|
if [ -z "$PRUNE_ALL" ]; then
|
|
_CFG_BIN="$(cd "$(dirname "$0")" && pwd)/gstack-config"
|
|
if [ -x "$_CFG_BIN" ] && "$_CFG_BIN" has plan_tune_hooks 2>/dev/null; then
|
|
_PT_VAL=$("$_CFG_BIN" get plan_tune_hooks 2>/dev/null || true)
|
|
_PT_VAL=$(printf '%s' "$_PT_VAL" | tr '[:upper:]' '[:lower:]' | tr -d '[:space:]')
|
|
case "$_PT_VAL" in
|
|
n|no|false|skip|off|0) GSTACK_PT_OPTOUT=1 ;;
|
|
esac
|
|
fi
|
|
fi
|
|
_acquire_lock || exit 5
|
|
_mutation_env
|
|
GSTACK_SETTINGS_PATH="$SETTINGS_FILE" \
|
|
GSTACK_REPOINT_ROOT="$REPOINT_ROOT" \
|
|
GSTACK_PRUNE_ALL="$PRUNE_ALL" \
|
|
GSTACK_PT_OPTOUT="$GSTACK_PT_OPTOUT" \
|
|
GSTACK_SWEEP_EXCLUDE_SOURCES="${GSTACK_SWEEP_EXCLUDE_SOURCES:-}" \
|
|
bun -e "$_HOOK_JS_PRELUDE"'gsMain(function () {
|
|
const settingsPath = process.env.GSTACK_SETTINGS_PATH;
|
|
const root = (process.env.GSTACK_REPOINT_ROOT || "").replace(/\/+$/, "");
|
|
const all = process.env.GSTACK_PRUNE_ALL === "1";
|
|
const ptOptout = process.env.GSTACK_PT_OPTOUT === "1";
|
|
const PT_SOURCES = { "plan-tune-cathedral": true, "auq-error-fallback": true };
|
|
// Sources a sweep must leave alone (e.g. `setup --no-team` excludes the
|
|
// user-registered verify-gate hook: turning team mode off must not
|
|
// delete an unrelated opt-in whose binary still exists).
|
|
const sweepExclude = {};
|
|
(process.env.GSTACK_SWEEP_EXCLUDE_SOURCES || "").split(",").forEach(function (sName) {
|
|
if (sName.trim()) sweepExclude[sName.trim()] = true;
|
|
});
|
|
|
|
const loaded = gsLoadSettings(settingsPath);
|
|
const settings = loaded.settings;
|
|
const before = JSON.stringify(settings, null, 2);
|
|
let removed = 0;
|
|
let repointed = 0;
|
|
|
|
if (settings.hooks) {
|
|
for (const event of Object.keys(settings.hooks)) {
|
|
const rebuilt = [];
|
|
for (const entry of settings.hooks[event]) {
|
|
if (!Array.isArray(entry.hooks)) { rebuilt.push(entry); continue; }
|
|
const matcher = entry.matcher || "";
|
|
const wasSingle = entry.hooks.length === 1;
|
|
const remain = [];
|
|
const seenInEntry = new Set();
|
|
if (entry.hooks.length === 0) {
|
|
// Started-empty entries are foreign data we never touched --
|
|
// preserve them (only a gstack-tagged empty entry is claimable,
|
|
// and only by the --all sweep).
|
|
if (all && entry._gstack_source && !sweepExclude[entry._gstack_source]) { removed++; continue; }
|
|
rebuilt.push(entry);
|
|
continue;
|
|
}
|
|
for (const h of entry.hooks) {
|
|
const cmdRaw = h && h.command;
|
|
const row = cmdRaw ? gsOwnedRow(cmdRaw, event, matcher) : null;
|
|
// A tagged SINGLE-item entry with no table match is an owned
|
|
// legacy stray (command items only -- gstack never writes
|
|
// command-less items); tags never claim items in multi-item entries.
|
|
const stray = !row && !!cmdRaw && !!entry._gstack_source && wasSingle;
|
|
if (!row && !stray) { remain.push(h); continue; } // foreign: never touched
|
|
if (all) {
|
|
if ((row && sweepExclude[row.source]) || (!row && entry._gstack_source && sweepExclude[entry._gstack_source])) { remain.push(h); continue; }
|
|
removed++; continue;
|
|
}
|
|
if (row && root && !(ptOptout && PT_SOURCES[row.source])) {
|
|
const target = root + "/" + row.relpath;
|
|
if (gsIsAlive(target)) {
|
|
const newCmd = gsQuoteCmd(target, gsHadBashPrefix(cmdRaw));
|
|
if (h.command !== newCmd) { h.command = newCmd; repointed++; }
|
|
// Within-entry twin collapse: two dead copies of the same
|
|
// hook re-point to the same canonical command -- keeping
|
|
// both would fire the hook twice per event, forever.
|
|
if (seenInEntry.has(newCmd)) { removed++; continue; }
|
|
seenInEntry.add(newCmd);
|
|
if (wasSingle) entry._gstack_source = row.source; // tag restore
|
|
remain.push(h);
|
|
continue;
|
|
}
|
|
}
|
|
// No re-point target (or plan-tune opt-out): keep live, prune dead.
|
|
if (gsIsAlive(cmdRaw)) remain.push(h); else { removed++; }
|
|
}
|
|
if (remain.length === 0) continue; // entry emptied → dropped
|
|
entry.hooks = remain;
|
|
// Tag hygiene: a tag must never sit on an entry containing foreign
|
|
// items (old gstack versions in sibling worktrees treat tags as
|
|
// entry-level ownership and would destroy the user items). Drop
|
|
// the tag from any mixed entry; single-item strays keep theirs.
|
|
if (entry._gstack_source && entry.hooks.length > 0
|
|
&& !entry.hooks.every(h => h && h.command && gsOwnedRow(h.command, event, matcher))
|
|
&& !(entry.hooks.length === 1 && wasSingle)) {
|
|
delete entry._gstack_source;
|
|
}
|
|
rebuilt.push(entry);
|
|
}
|
|
// Collapse exact duplicates among FULLY-owned entries (same matcher,
|
|
// same item commands). Prefer the tagged twin so stripped tags heal.
|
|
const seen = new Map();
|
|
const out = [];
|
|
for (const entry of rebuilt) {
|
|
const items = Array.isArray(entry.hooks) ? entry.hooks : [];
|
|
const fullyOwned = items.length > 0 && items.every(h =>
|
|
h && h.command && gsOwnedRow(h.command, event, entry.matcher || ""));
|
|
if (!fullyOwned) { out.push(entry); continue; }
|
|
const key = JSON.stringify([entry.matcher || ""].concat(items.map(function (h) { return h.command; }).sort()));
|
|
const at = seen.get(key);
|
|
if (at === undefined) { seen.set(key, out.length); out.push(entry); }
|
|
else {
|
|
if (!out[at]._gstack_source && entry._gstack_source) out[at] = entry;
|
|
removed++;
|
|
}
|
|
}
|
|
settings.hooks[event] = out;
|
|
if (out.length === 0) delete settings.hooks[event];
|
|
}
|
|
if (settings.hooks && Object.keys(settings.hooks).length === 0) delete settings.hooks;
|
|
}
|
|
|
|
gsWriteIfChanged(settingsPath, before, settings, loaded.existed);
|
|
console.log("OK: removed " + removed + " gstack hook entries (repointed " + repointed + ")");
|
|
});
|
|
'
|
|
;;
|
|
|
|
rollback)
|
|
if [ ! -f "$SETTINGS_FILE.bak-latest" ]; then
|
|
echo "rollback: no backup pointer at $SETTINGS_FILE.bak-latest" >&2
|
|
exit 1
|
|
fi
|
|
LATEST=$(cat "$SETTINGS_FILE.bak-latest")
|
|
LATEST=$(printf '%s' "$LATEST" | tr -d '\n')
|
|
# Defense in depth: only ever restore a sibling settings.json.bak.* file
|
|
# (a corrupted/hostile pointer must not install an arbitrary file as the
|
|
# live settings.json).
|
|
case "$LATEST" in
|
|
"$SETTINGS_FILE".bak.*) ;;
|
|
*)
|
|
echo "rollback: pointer target $LATEST is not a $SETTINGS_FILE.bak.* file -- refusing" >&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
case "${LATEST#"$SETTINGS_FILE".bak.}" in
|
|
*/*)
|
|
echo "rollback: pointer suffix contains a path separator -- refusing" >&2
|
|
exit 1
|
|
;;
|
|
esac
|
|
if [ ! -f "$LATEST" ]; then
|
|
echo "rollback: pointer references missing backup $LATEST" >&2
|
|
exit 1
|
|
fi
|
|
_acquire_lock || exit 1
|
|
_RB_TMP="$SETTINGS_FILE.tmp.$$.$RANDOM"
|
|
cp "$LATEST" "$_RB_TMP"
|
|
mv "$_RB_TMP" "$SETTINGS_FILE"
|
|
echo "OK: restored $SETTINGS_FILE from $LATEST"
|
|
;;
|
|
|
|
list-items)
|
|
# Read-only identity view: one JSON string literal per matching hook
|
|
# command (JSON.stringify, so a command containing tabs or newlines
|
|
# cannot split a line), filters applied inside the JS. Empty stdout
|
|
# means no match. Exit 1 usage, 3 unparseable settings, 4 unexpected
|
|
# shape -- the same codes the mutating verbs use, because callers
|
|
# (bin/gstack-memorable) decide mutations from this output.
|
|
LI_EVENT=""
|
|
LI_OWNED_BY=""
|
|
LI_CMD_RE=""
|
|
shift
|
|
while [ $# -gt 0 ]; do
|
|
case "$1" in
|
|
--event) LI_EVENT="$2"; shift 2 ;;
|
|
--owned-by) LI_OWNED_BY="$2"; shift 2 ;;
|
|
--command-regex) LI_CMD_RE="$2"; shift 2 ;;
|
|
*) echo "unknown flag: $1" >&2; exit 1 ;;
|
|
esac
|
|
done
|
|
if [ -z "$LI_EVENT" ]; then
|
|
echo "list-items requires --event <name>" >&2
|
|
exit 1
|
|
fi
|
|
[ -f "$SETTINGS_FILE" ] || exit 0
|
|
GSTACK_SETTINGS_PATH="$SETTINGS_FILE" GSTACK_LI_EVENT="$LI_EVENT" GSTACK_LI_OWNED_BY="$LI_OWNED_BY" GSTACK_LI_CMD_RE="$LI_CMD_RE" bun -e "$_HOOK_JS_PRELUDE"'gsMain(function () {
|
|
const event = process.env.GSTACK_LI_EVENT;
|
|
const ownedBy = process.env.GSTACK_LI_OWNED_BY || "";
|
|
const reSrc = process.env.GSTACK_LI_CMD_RE || "";
|
|
let re = null;
|
|
if (reSrc) {
|
|
try { re = new RegExp(reSrc); }
|
|
catch (e) {
|
|
process.stderr.write("list-items: invalid --command-regex (" + e.message + ")\n");
|
|
process.exit(1);
|
|
}
|
|
}
|
|
const loaded = gsLoadSettings(process.env.GSTACK_SETTINGS_PATH);
|
|
const hooks = loaded.settings.hooks || {};
|
|
const entries = hooks[event];
|
|
if (entries === undefined || entries === null) process.exit(0);
|
|
if (!Array.isArray(entries)) throw new Error("hooks." + event + " is not an array");
|
|
for (const entry of entries) {
|
|
if (!entry || !Array.isArray(entry.hooks)) continue; // foreign shape, preserved by prune-stale too
|
|
for (const h of entry.hooks) {
|
|
const cmd = (h && typeof h.command === "string") ? h.command : "";
|
|
if (!cmd) continue;
|
|
const row = gsOwnedRow(cmd, event, entry.matcher || "");
|
|
if (ownedBy && (!row || row.source !== ownedBy)) continue;
|
|
if (re && (row || !re.test(cmd))) continue; // the regex only ever sees items no table row owns
|
|
console.log(JSON.stringify(cmd));
|
|
}
|
|
}
|
|
});
|
|
'
|
|
;;
|
|
|
|
list-sources)
|
|
[ -f "$SETTINGS_FILE" ] || { echo "(no settings file)"; exit 0; }
|
|
GSTACK_SETTINGS_PATH="$SETTINGS_FILE" bun -e "$_HOOK_JS_PRELUDE"'gsMain(function () {
|
|
const fs = require("fs");
|
|
let settings = {};
|
|
try { settings = JSON.parse(fs.readFileSync(process.env.GSTACK_SETTINGS_PATH, "utf8")); }
|
|
catch (e) {
|
|
// Read-only surface: report loudly (setup guards read this output and
|
|
// must not mistake corrupt-file for no-hooks) but exit 0.
|
|
process.stderr.write("gstack-settings-hook: settings.json unparseable (" + e.message + ") -- fix or rollback\n");
|
|
process.exit(0);
|
|
}
|
|
const hooks = settings.hooks || {};
|
|
let any = false;
|
|
for (const event of Object.keys(hooks)) {
|
|
for (const entry of hooks[event]) {
|
|
if (entry._gstack_source) {
|
|
any = true;
|
|
console.log(event + "\t" + entry._gstack_source + "\t" + (entry.matcher || "(no matcher)"));
|
|
}
|
|
}
|
|
}
|
|
if (!any) console.log("(no gstack-tagged hooks)");
|
|
});
|
|
'
|
|
;;
|
|
|
|
*)
|
|
echo "Unknown action: $ACTION" >&2
|
|
exit 1
|
|
;;
|
|
esac
|