grits

Git library in progress for Crystal | Documentation

Note: these bindings are currently locked for libgit2.so.1.3 to preserve compatibility.

Installation

1. Add the dependency to your shard.yml:

   dependencies:
     grits:
       gitlab: skinnyjames/grits

2. Run shards install

Usage

require "grits"

dest = "#{__DIR__}/some_folder"

Grits::Repo.clone(
  "https://codeberg.org/skinnyjames/grits.git", 
  dest, 
  options
) do |repo|
  # interact with the repo..
  # create a new untracked file
  File.write("#{dest}/new.txt", "Hello Grits.\n")

  repo.index do |stage|
    # add the new file to the staging index
    stage.add("new.txt")

    File.open("#{path}/new.txt", "a") do |io|
      io.print "Goodbye.\n"
    end

    # diff the changes
    stage.diff_workdir do |diff|
      changes = diff.lines.map { |line| { line.hunk.header, line.content } }
      puts changes # => [{"@@ -1 +1,2 @@\n", "Hello Grits.\n"}, {"@@ -1 +1,2 @@\n", "Goodbye.\n"}]
    end

    # Write the index to a tree and yield it for commit
    stage.write_tree do |tree|
      repo.commit_at("HEAD") do |parent|
        committer = author = { 
          email: "[email protected]", 
          name: "Sean Gregory", 
          time: Time.utc 
        }

        tree.commit(
          author: author,
          message: "Hello World",
          committer: committer,
          parents: [parent],
          update_ref: "HEAD"
        ) do |commit|
          puts commit.message # => "Hello World"
        end
      end
    end
  end
end

Development

To run the gitea test fixture

docker run -p 3000:3000 -p 222:22 skinnyjames/grits-gitea-fixture:latest

then

crystal spec

Manual validation

Navigate to http://127.0.0.1:3000

Login with skinnyjames / password

Contributors

• Sean Gregory - creator and maintainer

Thanks

Thanks to smacker for initial work on smacker/libgit2.cr