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Packaging Psalm

The official ways to install Psalm are the Composer package, the psalm.phar download, and the phar installed through Composer (see Installation). This page is for packagers of other distributions (Nix, deb, rpm, AUR, ...); it is contributed by the community and not maintained by the Psalm team.

Building from a source archive

A source archive (a GitHub snapshot, git archive, a tarball) has no .git directory, so Composer cannot work out the version of the root package and uses 1.0.0+no-version-set. The require-dev plugins of Psalm require a recent vimeo/psalm, so the install fails, even with --no-dev:

$ composer install --no-dev
...
vimeo/psalm 1.0.0+no-version-set is the root package and cannot be modified.

Tell Composer the version with COMPOSER_ROOT_VERSION: the release you are packaging (a value lower than what the plugins require fails the same way).

$ COMPOSER_ROOT_VERSION=7.0.0 composer install --no-dev
$ ./psalm --version
Psalm 7.0.0@

Psalm's own CI does the same.