Module: PDK::Util::Git

Defined in:
lib/pdk/util/git.rb

Constant Summary collapse

GIT_QUERY_CACHE_TTL = 
10

Class Method Summary collapse

Class Method Details

.bare_repo?(maybe_repo) ⇒ Boolean 



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# File 'lib/pdk/util/git.rb', line 78

def self.bare_repo?(maybe_repo)
  env = { 'GIT_DIR' => maybe_repo }
  rev_parse = git_with_env(env, 'rev-parse', '--is-bare-repository')

  rev_parse[:exit_code].zero? && rev_parse[:stdout].strip == 'true'
end

.clear_cached_information ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Clears any cached information for git queries Should only be used during testing



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# File 'lib/pdk/util/git.rb', line 141

def self.clear_cached_information
  @git_repo_expire_cache = nil
  @git_repo_cache = nil
end

.describe(path, ref = nil) ⇒ Object

Raises:



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# File 'lib/pdk/util/git.rb', line 126

def self.describe(path, ref = nil)
  args = ['--git-dir', path, 'describe', '--all', '--long', '--always', ref].compact
  result = git(*args)
  raise PDK::Util::GitError, args, result unless result[:exit_code].zero?

  result[:stdout].strip
end

.git(*args) ⇒ Object 



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# File 'lib/pdk/util/git.rb', line 48

def self.git(*args)
  require 'pdk/cli/exec'

  PDK::CLI::Exec.ensure_bin_present!(git_bin, 'git')

  PDK::CLI::Exec.execute(git_bin, *args)
end

.git_bin ⇒ Object 



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# File 'lib/pdk/util/git.rb', line 39

def self.git_bin
  require 'pdk/cli/exec'

  git_bin = Gem.win_platform? ? 'git.exe' : 'git'
  vendored_bin_path = File.join(git_bindir, git_bin)

  PDK::CLI::Exec.try_vendored_bin(vendored_bin_path, git_bin)
end

.git_bindir ⇒ Object 



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# File 'lib/pdk/util/git.rb', line 21

def self.git_bindir
  @git_dir ||= File.join('private', 'git', Gem.win_platform? ? 'cmd' : 'bin')
end

.git_paths ⇒ Object 



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# File 'lib/pdk/util/git.rb', line 25

def self.git_paths
  @paths ||= begin
    paths = [File.join(PDK::Util.pdk_package_basedir, git_bindir)]

    if Gem.win_platform?
      paths << File.join(PDK::Util.pdk_package_basedir, 'private', 'git', 'mingw64', 'bin')
      paths << File.join(PDK::Util.pdk_package_basedir, 'private', 'git', 'mingw64', 'libexec', 'git-core')
      paths << File.join(PDK::Util.pdk_package_basedir, 'private', 'git', 'usr', 'bin')
    end

    paths
  end
end

.git_with_env(env, *args) ⇒ Object 



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# File 'lib/pdk/util/git.rb', line 56

def self.git_with_env(env, *args)
  require 'pdk/cli/exec'

  PDK::CLI::Exec.ensure_bin_present!(git_bin, 'git')

  PDK::CLI::Exec.execute_with_env(env, git_bin, *args)
end

.ls_remote(repo, ref) ⇒ Object

Raises:



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# File 'lib/pdk/util/git.rb', line 108

def self.ls_remote(repo, ref)
  repo = "file://#{repo}" if PDK::Util::Filesystem.directory?(repo)

  output = git('ls-remote', '--refs', repo, ref)

  unless output[:exit_code].zero?
    PDK.logger.error output[:stdout]
    PDK.logger.error output[:stderr]
    raise PDK::CLI::ExitWithError, format('Unable to access the template repository "%{repository}"', repository: repo)
  end

  matching_refs = output[:stdout].split(/\r?\n/).map { |r| r.split("\t") }
  matching_ref = matching_refs.find { |_sha, remote_ref| ["refs/tags/#{ref}", "refs/remotes/origin/#{ref}", "refs/heads/#{ref}"].include?(remote_ref) }
  raise PDK::CLI::ExitWithError, format('Unable to find a branch or tag named "%{ref}" in %{repo}', ref: ref, repo: repo) if matching_ref.nil?

  matching_ref.first
end

.remote_repo?(maybe_repo) ⇒ Boolean 



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# File 'lib/pdk/util/git.rb', line 85

def self.remote_repo?(maybe_repo)
  git('ls-remote', '--exit-code', maybe_repo)[:exit_code].zero?
end

.repo?(maybe_repo) ⇒ Boolean 



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# File 'lib/pdk/util/git.rb', line 64

def self.repo?(maybe_repo)
  result = cached_git_query(maybe_repo, :repo?)
  return result unless result.nil?

  result = if PDK::Util::Filesystem.directory?(maybe_repo)
             # Use boolean shortcircuiting here. The mostly likely type of git repo
             # is a "normal" repo with a working tree. Bare repos do not have work tree
             work_tree?(maybe_repo) || bare_repo?(maybe_repo)
           else
             remote_repo?(maybe_repo)
           end
  cache_query_result(maybe_repo, :repo?, result)
end

.tag?(git_remote, tag_name) ⇒ Boolean 



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# File 'lib/pdk/util/git.rb', line 134

def self.tag?(git_remote, tag_name)
  git('ls-remote', '--tags', '--exit-code', git_remote, tag_name)[:exit_code].zero?
end

.work_dir_clean?(repo) ⇒ Boolean

Raises:



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# File 'lib/pdk/util/git.rb', line 101

def self.work_dir_clean?(repo)
  raise PDK::CLI::ExitWithError, format('Unable to locate git work dir "%{workdir}"', workdir: repo) unless PDK::Util::Filesystem.directory?(repo)
  raise PDK::CLI::ExitWithError, format('Unable to locate git dir "%{gitdir}"', gitdir: repo) unless PDK::Util::Filesystem.directory?(File.join(repo, '.git'))

  git('--work-tree', repo, '--git-dir', File.join(repo, '.git'), 'status', '--untracked-files=no', '--porcelain', repo)[:stdout].empty?
end

.work_tree?(path) ⇒ Boolean 



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# File 'lib/pdk/util/git.rb', line 89

def self.work_tree?(path)
  return false unless PDK::Util::Filesystem.directory?(path)

  result = cached_git_query(path, :work_tree?)
  return result unless result.nil?

  Dir.chdir(path) do
    rev_parse = git('rev-parse', '--is-inside-work-tree')
    cache_query_result(path, :work_tree?, rev_parse[:exit_code].zero? && rev_parse[:stdout].strip == 'true')
  end
end