From 8a2fe3ad78531205d2a2a6f202f162dcb9d70de2 Mon Sep 17 00:00:00 2001
From: Daniel Bauer <daniel.bauer@senckenberg.de>
Date: Sat, 9 Aug 2025 11:27:31 +0200
Subject: [PATCH] add git worktree ai script

---
 bin/executable_git-worktree-ai | 128 +++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 bin/executable_git-worktree-ai

diff --git a/bin/executable_git-worktree-ai b/bin/executable_git-worktree-ai
new file mode 100644
index 0000000..744be25
--- /dev/null
+++ b/bin/executable_git-worktree-ai
@@ -0,0 +1,128 @@
+#!/bin/bash
+
+# git-worktree-ai - Create git worktrees and with linked AI agent configuration files
+#
+# Usage:
+#   ./git-worktree-ai <worktree-path> <branch-name>
+#   git worktree-ai <worktree-path> <branch-name>  (when added as git alias)
+#
+# Examples:
+#   ./git-worktree-ai ../feature-auth feature-auth
+#   git worktree-ai ../bugfix-login bugfix-login
+
+set -e
+
+CONFIG_FILES=(
+    # Claude Code
+    "CLAUDE.local.md"
+    "CLAUDE.md"
+    ".claude"
+    ".mcp.json"
+    # VS Code config
+    ".vscode"                    # Directory: entire .vscode folder
+    # env files
+    ".env*"
+)
+
+if [ $# -lt 2 ]; then
+    echo "Missing required argument".
+    echo "Usage $0 <worktree-path> <branch-name>"
+    exit 1
+fi
+
+WORKTREE_PATH="$1"
+BRANCH_NAME="$2"
+
+# Validate that we are in a git repo
+if ! git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
+    echo "Not inside a git repository"
+    exit 1
+fi
+
+if [ -e "$WORKTREE_PATH" ]; then
+    echo "Path $WORKTREE_PATH already exists"
+    exit 1
+fi
+
+# Check if branch already exists
+if git show-ref --verify --quiet "refs/heads/$BRANCH_NAME"; then
+    echo "Branch $BRANCH_NAME already exists"
+    exit 1
+fi
+
+echo "Creating worktree $WORKTREE_PATH with new branch $BRANCH_NAME"
+if ! git worktree add "$WORKTREE_PATH" -b "$BRANCH_NAME"; then
+    echo "Faild to create worktree"
+    exit 1
+else
+    echo "Worktree created successfully"
+fi
+
+cd "$WORKTREE_PATH"
+
+# Find the main repository using git-common-dir
+echo "Finding main repository..."
+MAIN_REPO=$(dirname "$(git rev-parse --git-common-dir)")
+MAIN_REPO=$(cd "$MAIN_REPO" && pwd)  # Get absolute path
+echo "Main repository at $MAIN_REPO"
+
+# Function to expand wildcards and return matching files/directories
+expand_pattern() {
+    local pattern="$1"
+    local base_dir="$2"
+
+    # Change to base directory and use shell globbing
+    (
+        cd "$base_dir"
+        # Set nullglob so patterns with no matches expand to nothing
+        shopt -s nullglob
+        # Expand the pattern
+        for match in $pattern; do
+            echo "$match"
+        done
+    )
+}
+
+for pattern in "${CONFIG_FILES[@]}"; do
+    echo "$pattern"
+    # Expand wildcards in the main repository
+    matches=$(expand_pattern "$pattern" "$MAIN_REPO")
+
+    # Process each match
+    while IFS= read -r file; do
+        # skip empty lines
+        [ -z "$file" ] && continue
+
+        SOURCE_PATH="$MAIN_REPO/$file"
+        TARGET_PATH="$file"
+
+        if [ -f "$SOURCE_PATH" ]; then
+            # Handle files: create parent directory if needed
+            PARENT_DIR="$(dirname "$TARGET_PATH")"
+            if [ "$PARENT_DIR" != "." ]; then
+                mkdir -p "$PARENT_DIR"
+            fi
+            ln -sf "$SOURCE_PATH" "$TARGET_PATH"
+            echo "Linked file: $file"
+
+        elif [ -d "$SOURCE_PATH" ]; then
+            # Handle directories: create parent directory if needed, remove target if it exists
+            PARENT_DIR="$(dirname "$TARGET_PATH")"
+            if [ "$PARENT_DIR" != "." ]; then
+                mkdir -p "$PARENT_DIR"
+            fi
+
+            # Remove target if it exists (could be empty dir created by mistake)
+            if [ -e "$TARGET_PATH" ] && [ ! -L "$TARGET_PATH" ]; then
+                rm -rf "$TARGET_PATH"
+            fi
+
+            ln -sf "$SOURCE_PATH" "$TARGET_PATH"
+            echo "Linked directory: $file"
+        else
+            echo "Skipped $file. What is this?"
+        fi
+
+
+    done <<< "$matches"
+done