diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/puppet/provider/vcsrepo/git.rb | 172 |
1 files changed, 99 insertions, 73 deletions
diff --git a/lib/puppet/provider/vcsrepo/git.rb b/lib/puppet/provider/vcsrepo/git.rb index 5c5dd07..0a142bb 100644 --- a/lib/puppet/provider/vcsrepo/git.rb +++ b/lib/puppet/provider/vcsrepo/git.rb @@ -31,69 +31,49 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) FileUtils.rm_rf(@resource.value(:path)) end + # Checks to see if the current revision is equal to the revision on the + # remote (whether on a branch, tag, or reference) + # + # @return [Boolean] Returns true if the repo is on the latest revision def latest? - at_path do - return self.revision == self.latest - end + return revision == latest_revision end + # Just gives the `should` value that we should be setting the repo to if + # latest? returns false + # + # @return [String] Returns the target sha/tag/branch def latest - branch = on_branch? - if !branch - return get_revision('HEAD') - else - return get_revision("#{@resource.value(:remote)}/#{branch}") - end + @resource.value(:revision) end + # Get the current revision of the repo (tag/branch/sha) + # + # @return [String] Returns the branch/tag if the current sha matches the + # remote; otherwise returns the current sha. def revision - update_references - current = at_path { git_with_identity('rev-parse', 'HEAD').chomp } - return current unless @resource.value(:revision) - - if tag_revision?(@resource.value(:revision)) - # git-rev-parse will give you the hash of the tag object itself rather than the commit it points to by default. - # Using tag^0 will return the actual commit. - canonical = at_path { git_with_identity('rev-parse', "#{@resource.value(:revision)}^0").chomp } - else - # if it's not a tag, look for it as a local ref - canonical = at_path { git_with_identity('rev-parse', '--revs-only', @resource.value(:revision)).chomp } - if canonical.empty? - # git rev-parse executed properly but didn't find the ref; - # look for it in the remote - remote_ref = at_path { git_with_identity('ls-remote', '--heads', '--tags', @resource.value(:remote), @resource.value(:revision)).chomp } - if remote_ref.empty? - fail("#{@resource.value(:revision)} is not a local or remote ref") - end - - # $ git ls-remote --heads --tags origin feature/cvs - # 7d4244b35e72904e30130cad6d2258f901c16f1a refs/heads/feature/cvs - canonical = remote_ref.split.first - end - end - - if current == canonical - @resource.value(:revision) - else - current - end + #HEAD is the default, but lets just be explicit here. + get_revision('HEAD') end + # Is passed the desired reference, whether a tag, rev, or branch. Should + # handle transitions from a rev/branch/tag to a rev/branch/tag. Detached + # heads should be treated like bare revisions. + # + # @param [String] desired The desired revision to which the repo should be + # set. def revision=(desired) + #just checkout tags and shas; fetch has already happened so they should be updated. checkout(desired) - if local_branch_revision? - # reset instead of pull to avoid merge conflicts. assuming remote is - # authoritative. - # might be worthwhile to have an allow_local_changes param to decide - # whether to reset or pull when we're ensuring latest. - at_path { - git_with_identity('reset', '--hard', "#{@resource.value(:remote)}/#{desired}") - if detached? - git_with_identity('checkout', "#{@resource.value(:revision)}") - git_with_identity('pull') - end - } + #branches require more work. + if local_branch_revision?(desired) + #reset instead of pull to avoid merge conflicts. assuming remote is + #updated and authoritative. + #TODO might be worthwhile to have an allow_local_changes param to decide + #whether to reset or pull when we're ensuring latest. + at_path { git_with_identity('reset', '--hard', "#{@resource.value(:remote)}/#{desired}") } end + #TODO Would this ever reach here if it is bare? if @resource.value(:ensure) != :bare update_submodules end @@ -132,10 +112,12 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) private + # @!visibility private def bare_git_config_exists? File.exist?(File.join(@resource.value(:path), 'config')) end + # @!visibility private def clone_repository(source, path) check_force args = ['clone'] @@ -158,6 +140,7 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) end end + # @!visibility private def check_force if path_exists? and not path_empty? if @resource.value(:force) @@ -169,6 +152,7 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) end end + # @!visibility private def init_repository(path) check_force if @resource.value(:ensure) == :bare && working_copy_exists? @@ -195,6 +179,7 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) # <path>/.git # to: # <path>/ + # @!visibility private def convert_working_copy_to_bare notice "Converting working copy repository to bare repository" FileUtils.mv(File.join(@resource.value(:path), '.git'), tempdir) @@ -208,6 +193,7 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) # <path>/ # to: # <path>/.git + # @!visibility private def convert_bare_to_working_copy notice "Converting bare repository to working copy repository" FileUtils.mv(@resource.value(:path), tempdir) @@ -220,6 +206,7 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) end end + # @!visibility private def commits_in?(dot_git) Dir.glob(File.join(dot_git, 'objects/info/*'), File::FNM_DOTMATCH) do |e| return true unless %w(. ..).include?(File::basename(e)) @@ -227,26 +214,35 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) false end + # Will checkout a rev/branch/tag using the locally cached versions. Does not + # handle upstream branch changes + # @!visibility private def checkout(revision = @resource.value(:revision)) if !local_branch_revision? && remote_branch_revision? - at_path { git_with_identity('checkout', '-b', revision, '--track', "#{@resource.value(:remote)}/#{revision}") } + #non-locally existant branches (perhaps switching to a branch that has never been checked out) + at_path { git_with_identity('checkout', '--force', '-b', revision, '--track', "#{@resource.value(:remote)}/#{revision}") } else + #tags, locally existant branches (perhaps outdated), and shas at_path { git_with_identity('checkout', '--force', revision) } end end + # @!visibility private def reset(desired) at_path do git_with_identity('reset', '--hard', desired) end end + # @!visibility private def update_submodules at_path do git_with_identity('submodule', 'update', '--init', '--recursive') end end + # Determins if the branch exists at the upstream but has not yet been locally committed + # @!visibility private def remote_branch_revision?(revision = @resource.value(:revision)) # git < 1.6 returns '#{@resource.value(:remote)}/#{revision}' # git 1.6+ returns 'remotes/#{@resource.value(:remote)}/#{revision}' @@ -254,64 +250,93 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) branch unless branch.empty? end + # Determins if the branch is already cached locally + # @!visibility private def local_branch_revision?(revision = @resource.value(:revision)) at_path { branches.include?(revision) } end + # @!visibility private def tag_revision?(revision = @resource.value(:revision)) at_path { tags.include?(revision) } end + # @!visibility private def branches at_path { git_with_identity('branch', '-a') }.gsub('*', ' ').split(/\n/).map { |line| line.strip } end + # @!visibility private def on_branch? at_path { matches = git_with_identity('branch', '-a').match /\*\s+(.*)/ - matches[1] unless matches[1].match /detached/ - } - end - - def detached? - at_path { - git_with_identity('branch', '-a').match /\*\s+\(detached from.*\)/ + matches[1] unless matches[1].match /(\(detached from|\(no branch)/ } end + # @!visibility private def tags at_path { git_with_identity('tag', '-l') }.split(/\n/).map { |line| line.strip } end + # @!visibility private def set_excludes at_path { open('.git/info/exclude', 'w') { |f| @resource.value(:excludes).each { |ex| f.write(ex + "\n") }}} end - def get_revision(rev) - if @resource.value(:force) && working_copy_exists? - create - end - if !working_copy_exists? - create - end - at_path do - update_remote_origin_url - git_with_identity('fetch', @resource.value(:remote)) - git_with_identity('fetch', '--tags', @resource.value(:remote)) + # Finds the latest revision or sha of the current branch if on a branch, or + # of HEAD otherwise. + # @note Calls create which can forcibly destroy and re-clone the repo if + # force => true + # @see get_revision + # + # @!visibility private + # @return [String] Returns the output of get_revision + def latest_revision + #TODO Why is create called here anyway? + create if @resource.value(:force) && working_copy_exists? + create if !working_copy_exists? + + if branch = on_branch? + return get_revision("#{@resource.value(:remote)}/#{branch}") + else + return get_revision end + end + + # Returns the current revision given if the revision is a tag or branch and + # matches the current sha. If the current sha does not match the sha of a tag + # or branch, then it will just return the sha (ie, is not in sync) + # + # @!visibility private + # + # @param [String] rev The revision of which to check if it is current + # @return [String] Returns the tag/branch of the current repo if it's up to + # date; otherwise returns the sha of the requested revision. + def get_revision(rev = 'HEAD') + update_references current = at_path { git_with_identity('rev-parse', rev).strip } if @resource.value(:revision) - if local_branch_revision? + if tag_revision? + # git-rev-parse will give you the hash of the tag object itself rather + # than the commit it points to by default. Using tag^0 will return the + # actual commit. + canonical = at_path { git_with_identity('rev-parse', "#{@resource.value(:revision)}^0").strip } + elsif local_branch_revision? canonical = at_path { git_with_identity('rev-parse', @resource.value(:revision)).strip } elsif remote_branch_revision? - canonical = at_path { git_with_identity('rev-parse', "#{@resource.value(:remote)}/" + @resource.value(:revision)).strip } + canonical = at_path { git_with_identity('rev-parse', "#{@resource.value(:remote)}/#{@resource.value(:revision)}").strip } + else + #look for a sha (could match invalid shas) + canonical = at_path { git_with_identity('rev-parse', '--revs-only', @resource.value(:revision)).strip } end + fail("#{@resource.value(:revision)} is not a local or remote ref") if canonical.nil? or canonical.empty? current = @resource.value(:revision) if current == canonical end - update_owner_and_excludes return current end + # @!visibility private def update_owner_and_excludes if @resource.value(:owner) or @resource.value(:group) set_ownership @@ -321,6 +346,7 @@ Puppet::Type.type(:vcsrepo).provide(:git, :parent => Puppet::Provider::Vcsrepo) end end + # @!visibility private def git_with_identity(*args) if @resource.value(:identity) Tempfile.open('git-helper') do |f| |