b24a53dc06
* Add -r shorthand to SKIP_SESSION_ID check in claude wrapper The wrapper checked for --resume but not its -r shorthand, causing claude -r to fail with a --session-id conflict error because the wrapper injected its own --session-id alongside the implicit --resume. Fixes #1987 Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Remove invalid -r=* pattern from SKIP_SESSION_ID check Short options don't use the = form, so -r=* would never match a real CLI invocation. Keep only -r as the shorthand for --resume. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
96 lines
4.2 KiB
Bash
Executable file
96 lines
4.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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# cmux claude wrapper - injects hooks and session tracking
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#
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# When running inside a cmux terminal (CMUX_SURFACE_ID is set), this wrapper
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# intercepts `claude` invocations to inject --session-id and --settings flags
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# so that Claude Code hooks fire back into cmux for notifications/status.
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# Outside cmux, it passes through to the real claude binary unchanged.
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# Find the real claude binary, skipping our own directory.
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find_real_claude() {
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local self_dir
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self_dir="$(cd "$(dirname "$0")" && pwd)"
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local IFS=:
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for d in $PATH; do
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[[ "$d" == "$self_dir" ]] && continue
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[[ -x "$d/claude" ]] && printf '%s' "$d/claude" && return 0
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done
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return 1
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}
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# Return 0 only when CMUX_SOCKET_PATH points to a live cmux socket.
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cmux_socket_available() {
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local socket="${CMUX_SOCKET_PATH:-}"
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[[ -n "$socket" && -S "$socket" ]] || return 1
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local self_dir cmux_bin
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self_dir="$(cd "$(dirname "$0")" && pwd)"
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cmux_bin="$self_dir/cmux"
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[[ -x "$cmux_bin" ]] || cmux_bin="$(command -v cmux || true)"
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[[ -n "$cmux_bin" ]] || return 1
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# Keep stale/hung socket checks bounded so claude startup does not block
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# behind the CLI default timeout (15s).
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CMUXTERM_CLI_RESPONSE_TIMEOUT_SEC=0.75 \
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"$cmux_bin" --socket "$socket" ping >/dev/null 2>&1
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}
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# Pass through if not in a cmux terminal, hooks are disabled, or the cmux
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# socket is unavailable (stale env / app not running).
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IN_CMUX=0
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if [[ -n "$CMUX_SURFACE_ID" ]]; then
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IN_CMUX=1
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fi
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if [[ "$IN_CMUX" == "0" || "$CMUX_CLAUDE_HOOKS_DISABLED" == "1" ]] || ! cmux_socket_available; then
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# In cmux-launched shells, preserve old behavior and always clear nested
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# Claude session markers, even when we must pass through due to stale socket.
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if [[ "$IN_CMUX" == "1" ]]; then
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unset CLAUDECODE
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fi
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REAL_CLAUDE="$(find_real_claude)" || { echo "Error: claude not found in PATH" >&2; exit 127; }
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exec "$REAL_CLAUDE" "$@"
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fi
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# Find real claude.
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REAL_CLAUDE="$(find_real_claude)" || { echo "Error: claude not found in PATH" >&2; exit 127; }
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# Pass through subcommands that don't support session/hook flags.
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case "${1:-}" in
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mcp|config|api-key|rc|remote-control) exec "$REAL_CLAUDE" "$@" ;;
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esac
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# Unset CLAUDECODE to avoid "nested session" detection — cmux terminals are
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# independent sessions even when the parent shell was launched from Claude Code.
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unset CLAUDECODE
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# Check if the user already specified a session/resume flag.
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# If so, don't inject our own --session-id (it would conflict).
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SKIP_SESSION_ID=false
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for arg in "$@"; do
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case "$arg" in
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--resume|--resume=*|-r|--session-id|--session-id=*|--continue|-c)
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SKIP_SESSION_ID=true
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break
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;;
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esac
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done
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# Export the wrapper's PID. Because we exec claude below, this PID becomes
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# the actual claude process PID, which hooks use for stale-session detection.
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export CMUX_CLAUDE_PID=$$
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# Build hooks settings JSON.
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# Claude Code merges --settings additively with the user's own settings.json.
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# - SessionStart/Stop/Notification: existing lifecycle hooks
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# - SessionEnd: cleanup when Claude exits (covers Ctrl+C where Stop doesn't fire)
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# - UserPromptSubmit: clears "Needs input" and sets "Running" on new prompt
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# - PreToolUse: clears "Needs input" when Claude resumes after permission grant (async to avoid latency)
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HOOKS_JSON='{"hooks":{"SessionStart":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook session-start","timeout":10}]}],"Stop":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook stop","timeout":10}]}],"SessionEnd":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook session-end","timeout":1}]}],"Notification":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook notification","timeout":10}]}],"UserPromptSubmit":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook prompt-submit","timeout":10}]}],"PreToolUse":[{"matcher":"","hooks":[{"type":"command","command":"cmux claude-hook pre-tool-use","timeout":5,"async":true}]}]}}'
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if [[ "$SKIP_SESSION_ID" == true ]]; then
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exec "$REAL_CLAUDE" --settings "$HOOKS_JSON" "$@"
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else
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SESSION_ID="$(uuidgen | tr '[:upper:]' '[:lower:]')"
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exec "$REAL_CLAUDE" --session-id "$SESSION_ID" --settings "$HOOKS_JSON" "$@"
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fi
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