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# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Project Overview
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A collection of standalone Bash utility scripts for MongoDB operations (backup, restore, local dev environment). No build system, package manager, or test suite — each module is a self-contained shell script.
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## Modules
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| Module | Script | Purpose |
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|---|---|---|
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| `dbdump_mongo/` | `db-dump.sh` | Dump MongoDB databases across multiple named environments |
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| `dbrestore_mongo/` | `db-restore.sh` | Restore a MongoDB dump to a target instance |
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| `dbutils_mongo/` | `db-start.sh` | Spin up a local MongoDB + Mongo Express via Docker |
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## Running the Scripts
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```bash
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# Backup — interactive environment picker
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cd dbdump_mongo && bash db-dump.sh
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# Restore — interactive backup directory navigator
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cd dbrestore_mongo && bash db-restore.sh
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# Local dev database — Docker-based
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cd dbutils_mongo && bash db-start.sh up # start
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cd dbutils_mongo && bash db-start.sh down # stop
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cd dbutils_mongo && bash db-start.sh status
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cd dbutils_mongo && bash db-start.sh logs
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cd dbutils_mongo && bash db-start.sh clean # remove volumes
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cd dbutils_mongo && bash db-start.sh reconfigure
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```
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## Environment Setup
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Each module requires a `.env` file (copied from the corresponding `.env.example`). The `.env` files are git-ignored. `dbdump_mongo` supports multiple named environments stored as `.env.<name>` files with `chmod 600` permissions.
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## Architecture Patterns
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All three scripts share the same conventions:
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- **Sub-command dispatch**: a `main()` function routes `$1` to `cmd_<action>()` functions.
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- **Colored output**: ANSI escape codes (`\033[...m`) for styled terminal output; consistent separator lines.
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- **Prerequisite checks**: each script validates its required tools (`mongodump`, `mongorestore`, `docker`, `docker compose`) at startup and exits early with a clear message if missing.
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- **Interactive prompts**: `read -p` / `select` menus guide the user through environment selection, directory navigation, and confirmation steps before any destructive action.
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### dbdump_mongo — multi-environment credential model
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Named environments are stored as `.env.<name>` files alongside the main `.env`. Credentials include `MONGO_USERNAME`, `MONGO_PASSWORD`, `MONGO_HOST`, `MONGO_PORT`, `APP_NAME`. Dumps land in `./dumps/<appName>/<yyyymmdd_hhmm>/`. The script generates MongoDB Atlas-compatible connection strings (ssl, replicaSet flags).
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### dbrestore_mongo — backup directory navigation
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The script walks through backup directory hierarchies interactively. It detects valid restore targets by checking for `.bson` files (`has_bson_files()`). Before executing `mongorestore`, it shows a summary of connection details and the selected backup path and requires explicit confirmation.
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### dbutils_mongo — Docker Compose orchestration
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Runs two containers on a `dbutils-network` bridge: MongoDB (configurable port, default `MONGO_PORT`) and Mongo Express (default port `8081`). Data is persisted in named volumes `mongodb-data` and `mongodb-config`. On first run, `setup_credentials()` prompts interactively and writes `.env`. The `mongo-init.js` initializer creates a `dataImportHistory` collection with indexes on `importDate` and `status`.
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## External Dependencies
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- `mongodump` / `mongorestore` — MongoDB Database Tools (must be installed separately)
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- `docker` + `docker compose` (v2 plugin syntax)
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- `bash` (scripts use `bash`-specific features, not POSIX `sh`)
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julien