CLI
The CLI of coursier allows to
- list the transitive dependencies and
- fetch the artifacts of one or more dependencies,
- run applications from dependencies, and
- generate convenient launchers to run them among others.
See below for its installation, its basic usage, and click on the links above or on the left for more details about each of its commands.
Native launcher
The commands below install the native launcher as
cs
, which can be substituted tocoursier
in the various examples on this website.
Linux
On Linux, download and run the coursier launcher with
$ curl -Lo cs https://git.io/coursier-cli-linux &&
chmod +x cs &&
./cs --help
macOS
Download and run the coursier launcher with
$ curl -Lo cs https://git.io/coursier-cli-macos &&
chmod +x cs &&
(xattr -d com.apple.quarantine cs || true) &&
./cs --help
Note the xattr
command to circumvent notarization on macOS Catalina.
Alternatively, the native launcher can be installed via homebrew with
$ brew install coursier/formulas/coursier
$ cs --help
Windows
On Windows, use
> bitsadmin /transfer cs-cli https://git.io/coursier-cli-windows-exe "%cd%\cs.exe"
> .\cs --help
JAR-based launcher
In case you run into any issue with the native launcher, a JAR-based launcher is available.
Linux / macOS
Download and run the launcher with
$ curl -Lo coursier https://git.io/coursier-cli &&
chmod +x coursier &&
./coursier --help
Note that the JAR-based launcher requires Java 8 or later to run.
That is, a command like java -version
should print a version >= 8.
The JAR-based launcher weights only about 25 kB and can be easily embedded as is in other projects. It downloads the artifacts required to launch coursier on the first run.
Alternatively, on macOS, the JAR-based launcher can be installed via homebrew with
$ brew install coursier/formulas/coursier
$ coursier --help
Windows
Install and run the JAR-based coursier launcher from the current directory at the Windows prompt, with
> bitsadmin /transfer downloadCoursierCli https://git.io/coursier-cli "%cd%\coursier"
> bitsadmin /transfer downloadCoursierBat https://git.io/coursier-bat "%cd%\coursier.bat"
You can then run coursier from the same directory, like
> coursier resolve io.circe:circe-core_2.12:0.10.0
Arch Linux
Install it from AUR,
$ pacaur -S coursier
FreeBSD
Install it via pkg
from the Ports Collection,
$ pkg install coursier
zsh completions
If you use ZSH, simple tab-completions are available by copying the
scripts/_coursier
file into your completions directory, if you have one. If
you do not, then you can install the completions with,
mkdir -p ~/.zsh/completion
cp scripts/_coursier ~/.zsh/completion/
echo 'fpath=(~/.zsh/completion $fpath)' >> ~/.zshrc
echo 'autoload -Uz compinit ; compinit' >> ~/.zshrc
Usage
$ ./coursier --help
lists the available coursier commands. The most notable ones are launch
, and fetch
. Type
$ ./coursier command --help
to get a description of the various options the command command
(replace with one
of the above command) accepts.
Both commands below can be given repositories with the -r
or --repository
option, like
-r central
-r sonatype:snapshots
-r https://oss.sonatype.org/content/repositories/snapshots
-r "ivy:https://repo.typesafe.com/typesafe/ivy-releases/[organisation]/[module]/(scala_[scalaVersion]/)(sbt_[sbtVersion]/)[revision]/[type]s/[artifact](-[classifier]).[ext]"
central
and ivy2local
correspond to Maven Central and ~/.ivy2/local
. These are used by default
unless the --no-default
option is specified.
Repositories starting with ivy:
are assumed to be Ivy repositories, specified with an Ivy pattern, like ivy:https://repo.typesafe.com/typesafe/ivy-releases/[organisation]/[module]/(scala_[scalaVersion]/)(sbt_[sbtVersion]/)[revision]/[type]s/[artifact](-[classifier]).[ext]
.
Else, a Maven repository is assumed.
To set credentials for a repository, pass a user and password in its URL, like
-r https://user:pass@nexus.corp.com/content/repositories/releases
Launcher URLs
Latest launchers
The various git.io shortened URLs above redirect to the latest launchers from the launchers repository:
OS | Short URL | redirects to |
---|---|---|
Linux | https://git.io/coursier-cli-linux | https://github.com/coursier/launchers/raw/master/cs-x86_64-pc-linux |
macOS | https://git.io/coursier-cli-macos | https://github.com/coursier/launchers/raw/master/cs-x86_64-apple-darwin |
Windows | https://git.io/coursier-cli-windows-exe | https://github.com/coursier/launchers/raw/master/cs-x86_64-pc-win32.exe |
Any (needs JVM) | https://git.io/coursier-cli | https://github.com/coursier/coursier/raw/gh-pages/coursier (gh-pages branch of coursier repository rather than launchers repository) |
Any (needs JVM) | https://github.com/coursier/launchers/raw/master/coursier (same launcher as above) |
Specific versions
To download specific versions of the launcher, download them from GitHub release assets:
OS | URL | Since version |
---|---|---|
Linux | https://github.com/coursier/coursier/releases/download/v2.0.0-RC6-6/cs-x86_64-pc-linux | 2.0.0-RC3-1 |
macOS | https://github.com/coursier/coursier/releases/download/v2.0.0-RC6-6/cs-x86_64-apple-darwin | 2.0.0-RC3-1 |
Windows | https://github.com/coursier/coursier/releases/download/v2.0.0-RC6-6/cs-x86_64-pc-win32.exe | 2.0.0-RC6 |
Any (needs JVM) | https://github.com/coursier/coursier/releases/download/v2.0.0-RC6-6/coursier | 1.1.0-M9 |
Any (needs JVM) | https://github.com/coursier/coursier/raw/v1.1.0-M9/coursier (up to version 1.1.0-M9 ) | Invalid for newest versions |