sentry~watzon

Build/Runs your crystal application, watches files, and rebuilds/restarts app on file changes
0.3.2 Latest release released
watzon/sentry
1
Chris Watson

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Sentry 🤖

Build/Runs your crystal application, watches files, and rebuilds/reruns app on file changes

Installation

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

If using Crystal version 0.24.2 try the following:

curl -fsSLo- https://raw.githubusercontent.com/samueleaton/sentry/crystal-v0.24.2/install.cr | crystal eval

If using Crystal version 0.23.1 or lower try the following:

curl -fsSLo- https://raw.githubusercontent.com/samueleaton/sentry/crystal-v0.23.1/install.cr | crystal eval

This will install the Sentry CLI tool. To use the Crystal API, see CRYSTAL_API.md.

sentry

Troubleshooting the install: This 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.

Usage

Assuming sentry.cr was correctly placed in [your project name]/dev/sentry.cr and compiled into the root of your app as sentry, simply run:

./sentry [options]

Options

Show Help Menu

./sentry --help

Example

$ ./sentry -h

Usage: ./sentry [options]
     -n NAME, --name=NAME             Sets the display name of the app process (default name: <your_app_here>)
     -b COMMAND, --build=COMMAND      Overrides the default build command
     --build-args=ARGS                Specifies arguments for the build command
     --no-build                       Skips the build step
     -r COMMAND, --run=COMMAND        Overrides the default run command
     --run-args=ARGS                  Specifies arguments for the run command
     -w FILE, --watch=FILE            Overrides default files and appends to list of watched files
     -c FILE, --config=FILE           Specifies a file to load for automatic configuration (default: '.sentry.yml')
     --install                        Run 'shards install' once before running Sentry build and run commands
     --no-color                       Removes colorization from output
     -i, --info                       Shows the values for build/run commands, build/run args, and watched files
     -h, --help                       Show this help

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 ./[app_name].

Override Default Files to Watch

./sentry -w "./src/**/*.cr" -w "./lib/**/*.cr"

The default files being watched are ["./src/**/*.cr", "./src/**/*.ecr"].

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

Example

$ ./sentry -i

🤖  Sentry configuration:
       display name:   my_app
       shard name:     my_app
       install shards: true
       info:           true
       build:          crystal build ./src/my_app.cr
       build_args:     []
       run:            ./my_app
       run_args:       []
       watch:          ["./src/**/*.cr", "./src/**/*.ecr"]
🤖  Your SentryBot 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 --build-args or --run-args flags followed by a string of arguments.

./sentry -r "crystal" --run-args "spec --debug"

Running shards install Before Starting

This is especially usefull when initiating Sentry from a Dockerfile or package.json file. It guarantees all the shards are installed before running.

./sentry --install

Reading Configurations from a File

Sentry will automatically read configurations from .sentry.yml if it exists. This can be changed with -c FILE or --config=FILE.

See the YAML.mapping definition in the Config class in the /src/sentry.cr file for valid file properties.

Removing Colorization

Sentry output is colorized by default. To remove colorization, pass the --no-color argument.

Example

./sentry --no-color

Sentry Crystal API

See CRYSTAL_API.md

Why?

(1) It is tiring to have to stop and restart an app on every change.

(2) Docker!

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.

Contributing

  1. Fork it ( https://github.com/samueleaton/sentry/fork )
  2. Create your feature branch (git checkout -b feat-my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin feat-my-new-feature)
  5. Create a new Pull Request

Contributors

Disclaimer

Sentry is intended for use in a development environment, where failure is safe and expected 😉.

sentry:
  github: watzon/sentry
  version: ~> 0.3.2
License ISC
Crystal 0.34.0

Authors

Dependencies 0

Development Dependencies 0

Dependents 0

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