Class: GitSme::CommitLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/git_sme/commit_loader.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path_to_repo, branch: 'master', enable_cache: true) ⇒ CommitLoader

Returns a new instance of CommitLoader.



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# File 'lib/git_sme/commit_loader.rb', line 15

def initialize(path_to_repo, branch: 'master', enable_cache: true)
  @branch = branch
  @enable_cache = enable_cache
  @commits = []
  @loaded = false
  @valid = true

  begin
    @repo = Rugged::Repository.new(File.expand_path(path_to_repo))
    @branch = 'master' if @repo.branches[@branch].nil?

    @cache = GitSme::Cache.new(@repo.path.gsub('/.git/', ''),
      enabled: @enable_cache, file_suffix: "#{@branch}-commits"
    )
  rescue Rugged::RepositoryError => e
    @valid = false
    @error_message = e.message
  end
end

Instance Attribute Details

#branch ⇒ Object (readonly)

Returns the value of attribute branch.



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# File 'lib/git_sme/commit_loader.rb', line 10

def branch
  @branch
end

#commits ⇒ Object (readonly)

Returns the value of attribute commits.



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# File 'lib/git_sme/commit_loader.rb', line 10

def commits
  @commits
end

#error_message ⇒ Object (readonly)

Returns the value of attribute error_message.



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# File 'lib/git_sme/commit_loader.rb', line 10

def error_message
  @error_message
end

#loaded ⇒ Object (readonly) Also known as: loaded?

Returns the value of attribute loaded.



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# File 'lib/git_sme/commit_loader.rb', line 10

def loaded
  @loaded
end

#repo ⇒ Object (readonly)

Returns the value of attribute repo.



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# File 'lib/git_sme/commit_loader.rb', line 10

def repo
  @repo
end

#valid ⇒ Object (readonly) Also known as: valid?

Returns the value of attribute valid.



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# File 'lib/git_sme/commit_loader.rb', line 10

def valid
  @valid
end

Instance Method Details

#load(force: false) ⇒ Object 



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# File 'lib/git_sme/commit_loader.rb', line 35

def load(force: false)
  return unless valid?
  return if loaded? && !force

  @commits = @cache.load
  @last_commit_idx = @commits.size - 1
  @commit_count = `cd #{@repo.path.gsub('/.git/', '')} && git rev-list --count #{@branch}`.to_i

  walker = Rugged::Walker.new(@repo)
  walker.push(@repo.branches[@branch].target_id)

  if @enable_cache && @commits.size > 0
    appending_to_cache = true
    oldest_cached_commit = @commits[-1]
    oldest_cached_commit_sha = oldest_cached_commit ? oldest_cached_commit[:sha1] : nil

    walker.sorting(Rugged::SORT_REVERSE)
  end

  new_commits = []

  walker.each do |commit|
    break if appending_to_cache && commit.oid == oldest_cached_commit_sha

    process_commit(appending_to_cache, commit, new_commits) do |new_commit_count, processed_commit_count, all_commit_count|
      yield(new_commit_count, processed_commit_count, all_commit_count)
    end
  end

  walker.reset

  @commits.concat(new_commits.reverse) if new_commits.any?

  @cache.save(@commits)

  @loaded = true
end

#load! ⇒ Object Also known as: reload! 



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# File 'lib/git_sme/commit_loader.rb', line 73

def load!
  load(force: true)
end

#new_commits ⇒ Object 



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# File 'lib/git_sme/commit_loader.rb', line 84

def new_commits
  return [] unless new_commits?

  @commits.slice(@last_commit_idx, @commits.size)
end

#new_commits? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/git_sme/commit_loader.rb', line 78

def new_commits?
  return false if @last_commit_idx.nil?

  @last_commit_idx > 0 && @last_commit_idx < (@commits.size - 1)
end