A Haskell library for the GitLab web API

This library interacts with a GitLab server’s API. It supports queries about and updates to:

• Branches
• Commits
• Groups
• Issues
• Jobs
• Members
• Merge requests
• Pipelines
• Projects
• Repositories
• Repository files
• Users

The library parses JSON results into Haskell data types in the GitLab.Types module.

Example

Run all GitLab actions with runGitLab:

runGitLab ::
   => GitLabServerConfig
   -> GitLab a
   -> IO a

For example:

myProjects <-
  runGitLab
    (defaultGitLabServer
       { url = "https://gitlab.example.com"
       , token="my_token"} )
    (searchUser "joe" >>= userProjects . fromJust)

Which uses the functions:

searchUser     :: Text -> GitLab (Maybe User)
userProjects   :: User -> GitLab (Maybe [Project])
projectCommits :: Project -> GitLab [Commit]

This library can also be used to implement rule based GitLab file system hooks that, when deployed a GitLab server, react in real time to GitLab events like project creation, new users, merge requests etc.

The rule based API for implementing file hooks is:

receive :: [Rule] -> GitLab ()

class (FromJSON a) => SystemHook a where
  match   :: String -> (a -> GitLab ()) -> Rule
  matchIf :: String -> (a -> GitLab Bool) -> (a -> GitLab ()) -> Rule

For more details about the file system hooks support, see post: GitLab automation with file hook rules.

For the complete gitlab-haskell API, see the hackage documentation.

The gitlab-tools command line tool for bulk GitLab transactions uses this library link.