Build/Runs your crystal application, watches files, and rebuilds/reruns app on file changes
To install in your project, from the root directory of your project, run:
curl -fsSLo- https://raw.githubusercontent.com/samueleaton/sentry/master/install.cr | crystal eval
This will install the Sentry CLI tool. To use the Crystal API, see CRYSTAL_API.md.
Troubleshooting the install: This ruby install script is just a convenience. If it does not work, simply: (1) place the files located in the
src dir into a your project in a
dev/ dir, and (2) compile sentry by doing
crystal build --release dev/sentry_cli.cr -o ./sentry.
sentry.cr was correctly placed in
[your project name]/dev/sentry.cr and compiled into the root of your app as
sentry, simply run:
Show Help Menu
Override Default Build Command
./sentry -b "crystal build --release ./src/my_app.cr"
The default build command is
crystal build ./src/[app_name].cr. The release flag is omitted by default for faster compilation time while you are developing.
Override Default Run Command
./sentry -r "./my_app"
The default run command is
Override Default Files to Watch
./sentry -w "./src/**/*.cr" -w "./lib/**/*.cr"
The default files being watched are
By specifying files to watch, the default will be omitted. So if you want to watch all of the file in your
src directory, you will need to specify that like in the above example.
Show Info Before Running
This shows the values for the build command, run command, and watched files.
$ ./sentry -i build: crystal build ./src/my_app.cr build args:  run: ./my_app run args:  files: ["./src/**/*.cr", "./src/**/*.ecr", "./spec/**/*.cr"] 🤖 sentry is vigilant. beep-boop... ... ...
Setting Build or Run Arguments
If you prefer granularity, you can specify arguments to the build or run commands using the
--run-args flags followed by a string of arguments.
./sentry -r "crystal" --run-args "spec --debug"
Sentry Crystal API
(1) It is tiring to have to stop and restart an app on every change.
Stop and restarting your app is especially expensive (and annoying) when running the app in a docker container, where one would need to totally rebuild the docker image for every change.
Now, for development, simply run sentry in your docker container, and it will rebuild the app from the docker container on any changes, without rebuilding the docker image/container.
- Fork it ( https://github.com/samueleaton/sentry/fork )
- Create your feature branch (git checkout -b feat-my-new-feature)
- Commit your changes (git commit -am 'Add some feature')
- Push to the branch (git push origin feat-my-new-feature)
- Create a new Pull Request
- samueleaton Sam Eaton - creator, maintainer
Sentry is intended for use in a development environment, where failure is safe and expected 😉.