Processmon

Process monitor that can run trigger scripts and subsequently restarts the processes it monitors when files on specified paths are modified. This can be very useful when running a development environment. Especially in a Docker container that's slow to restart.

To try it out:

cargo build
cd example
../target/debug/processmon processmon.toml

Then save a file in the code directory to trigger a restart.

Installation

Make sure you have a recent version of Rust installed, then run:

cargo install processmon

Configuration

Processmon is configured by a toml file:

[[paths_to_watch]]
path = "code"
ignore = ["tmp"]

[processes.process1]
command = "sh"
args = ["process1.sh"]

[processes.process2]
command = "./process2.sh"

[triggers.trigger]
command = "sh"
args = ["../trigger.sh"]
working_dir = "code"

[triggers.trigger.env]
content_for_file = "Triggered"

Paths to watch

Place one or more paths to watch in paths_to_watch. Any changes here will restart monitored processes and run any configured triggers. You can optionally add sub-paths to ignore.

Processes

Specify processes to run and monitor in processes.

Triggers

Specify triggers to run before restart in triggers. When running a trigger the env var TRIGGER_PATH will be set with the path that triggered the restart.

Command configuration

Both processes and triggers share the same configuration options:

• command: Command to run.
• args: List of argument to supply to the command (optional)
• working_dir: Working directory that the command will run in (optional)
• env: Environment variables for command (optional)