intellij wrapper around the idea cli script which searches for the project in parent dirs

i

#!/usr/bin/env bash
# Opens IntelliJ IDEA for a file or project directory.
# Walks up from the target path to find the .idea project root,
# ensures the project is loaded via IDEA's binary IPC, then navigates
# to the file using JetBrains deep links.
#
# Usage:
#   i              — open project for cwd
#   i file.kt      — open project containing file.kt and navigate to it
#   i ../other/    — open that project
set -e

IDEA_BIN="/Applications/IntelliJ IDEA.app/Contents/MacOS/idea"

if [ ! -x "$IDEA_BIN" ]; then
    echo "IntelliJ IDEA not found at: $IDEA_BIN" >&2
    exit 1
fi

target="${1:-.}"
target=$(realpath "$target")

if [ -d "$target" ]; then
    project_dir="$target"
    target_file=""
elif [ -f "$target" ]; then
    project_dir=$(dirname "$target")
    target_file="$target"
else
    echo "$target is not a file or directory" >&2
    exit 1
fi

# Walk up from project_dir to find the project root (.idea directory)
search="$project_dir"
project_root=""
while [ "$search" != "/" ]; do
    if [ -d "$search/.idea" ]; then
        project_root="$search"
        break
    fi
    search=$(dirname "$search")
done

if [ -z "$project_root" ]; then
    echo "No .idea project found above: $project_dir" >&2
    exit 1
fi

# Open/activate the project via IDEA binary IPC.
# This reuses the running instance (fast) or starts IDEA if not running.
"$IDEA_BIN" "$project_root"

# Navigate to the specific file via jetbrains:// deep link
if [ -n "$target_file" ]; then
    # Project name: .idea/.name if set, otherwise the directory name
    name_file="$project_root/.idea/.name"
    if [ -f "$name_file" ]; then
        project_name=$(cat "$name_file")
    else
        project_name=$(basename "$project_root")
    fi
    rel_path="${target_file#"$project_root"/}"
    open "jetbrains://idea/navigate/reference?project=$project_name&path=$rel_path"
fi