task-new.sh

#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "$0")" && pwd)"
TASKS_DIR="$ROOT_DIR/tasks"
CONF="$ROOT_DIR/repos.conf"

if [[ ! -f "$CONF" ]]; then
    echo "Error: repos.conf not found. Create it with one repo directory name per line."
    exit 1
fi

# Read repo list from config (skip blank lines and comments)
mapfile -t VALID_REPOS < <(grep -v '^\s*#' "$CONF" | grep -v '^\s*$')

if [[ ${#VALID_REPOS[@]} -eq 0 ]]; then
    echo "Error: repos.conf is empty. Add one repo directory name per line."
    exit 1
fi

usage() {
    echo "Usage: $0 <task-name> [repo ...]"
    echo ""
    echo "Create an isolated workspace with git worktrees for parallel Claude Code work."
    echo ""
    echo "  task-name   Branch and directory name (e.g. add-webhooks)"
    echo "  repo        One or more of: ${VALID_REPOS[*]}"
    echo "              If omitted, creates worktrees for all repos."
    echo ""
    echo "Examples:"
    echo "  $0 add-webhooks ${VALID_REPOS[0]}"
    if [[ ${#VALID_REPOS[@]} -ge 2 ]]; then
        echo "  $0 big-refactor ${VALID_REPOS[0]} ${VALID_REPOS[1]}"
    fi
    echo "  $0 full-refactor              # all repos"
    exit 1
}

[[ $# -lt 1 ]] && usage

TASK_NAME="$1"
shift

# Validate task name
if [[ "$TASK_NAME" =~ [^a-zA-Z0-9_-] ]]; then
    echo "Error: task name must only contain alphanumeric characters, hyphens, and underscores."
    exit 1
fi

TASK_DIR="$TASKS_DIR/$TASK_NAME"

if [[ -d "$TASK_DIR" ]]; then
    echo "Error: workspace '$TASK_NAME' already exists at $TASK_DIR"
    exit 1
fi

# If no repos specified, use all
if [[ $# -eq 0 ]]; then
    repos=("${VALID_REPOS[@]}")
else
    repos=("$@")
fi

# Validate repo names
for repo in "${repos[@]}"; do
    found=false
    for valid in "${VALID_REPOS[@]}"; do
        [[ "$repo" == "$valid" ]] && found=true && break
    done
    if ! $found; then
        echo "Error: unknown repo '$repo'. Valid repos: ${VALID_REPOS[*]}"
        exit 1
    fi
done

# Create workspace
mkdir -p "$TASK_DIR"

echo "Creating workspace: $TASK_DIR"
echo ""

# Create worktrees
for repo in "${repos[@]}"; do
    src="$ROOT_DIR/$repo"
    dest="$TASK_DIR/$repo"

    if [[ ! -d "$src/.git" ]]; then
        echo "Warning: $src is not a git repo, skipping."
        continue
    fi

    echo "  $repo -> branch '$TASK_NAME'"
    git -C "$src" worktree add "$dest" -b "$TASK_NAME" 2>&1 | sed 's/^/    /'
done

# Symlink root CLAUDE.md if it exists
if [[ -f "$ROOT_DIR/CLAUDE.md" ]]; then
    ln -s "$ROOT_DIR/CLAUDE.md" "$TASK_DIR/CLAUDE.md"
fi

# Copy .claude config (Claude Code project settings)
if [[ -d "$ROOT_DIR/.claude" ]]; then
    cp -r "$ROOT_DIR/.claude" "$TASK_DIR/.claude"
    # Remove plans/memory from the copy — those should stay per-session
    rm -rf "$TASK_DIR/.claude/plans" "$TASK_DIR/.claude/memory"
fi

echo ""
echo "Workspace ready: $TASK_DIR"
echo ""
echo "Contents:"
ls -1 "$TASK_DIR" | sed 's/^/  /'
echo ""
echo "To use: open Claude Code in $TASK_DIR"
echo "To clean up: ./task-done.sh $TASK_NAME"