eradman/entr
Entr
entr is a command-line tool and shell command orchestrator that executes arbitrary terminal commands automatically whenever monitored files are modified. It serves as a Unix file system monitor that maps filesystem events to the execution of user-defined shell commands.
The utility functions as a development workflow automator by restarting background processes and refreshing console output to provide immediate feedback during coding. It can terminate and restart long-running services when configuration or source code is updated.
The project covers automated task execution and continuous integration testing by running scripts or test suites in response to file changes. It also includes capabilities for directory monitoring to detect new files and utilities for clearing console output to maintain readability.
Users can implement custom status messaging by utilizing external scripts to process and filter command output.
Features
- File-Change-Triggered Commands - Automatically runs user-defined shell commands in response to filesystem modification events.
- Development Workflow Automators - Orchestrates repeatable development sequences by chaining shell commands to filesystem events.
- Event-Triggered Shell Commands - Maps specific filesystem events to the execution of arbitrary terminal commands.
- Command Runners - Functions as an event-driven command runner that executes shell scripts when files change.
- Shell Command Execution - Executes arbitrary user-defined shell commands to leverage system environment variables and pipes.
- File-Change-Triggered Restarts - Automatically restarts long-running processes when monitored source or configuration files are modified.
- Source-Change Auto-Restarts - Stops and restarts running applications automatically whenever source files are modified.
- Directory Watchers - Actively monitors directories for new files to trigger automated shell command workflows.
- Kernel Event Triggers - Listens for OS kernel filesystem events to trigger the execution of shell commands.
- Process Signal Management - Manages the termination of background child processes using OS signals to ensure clean restarts.
- File System Monitors - Tracks and reports filesystem state changes in real time to trigger external actions.
- Hot Code Reloading - Provides a hot-reloading workflow by automatically running build scripts or tests upon file save.
- Automated Task Execution Engines - Automates the execution of development tasks by triggering scripts based on filesystem changes.
- Path Tracking Lists - Maintains a list of monitored paths to detect when new files are added to a directory.
- Continuous Testing - Enables continuous testing by running test suites in real-time as files are modified.
- File Management - Run an arbitrary command when files change.
Star history
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