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-rw-r--r--lib/extracts_path.rb124
1 files changed, 12 insertions, 112 deletions
diff --git a/lib/extracts_path.rb b/lib/extracts_path.rb
index 44a9c7ea536..4c537eeaa89 100644
--- a/lib/extracts_path.rb
+++ b/lib/extracts_path.rb
@@ -3,79 +3,8 @@
# Module providing methods for dealing with separating a tree-ish string and a
# file path string when combined in a request parameter
module ExtractsPath
- # Raised when given an invalid file path
- InvalidPathError = Class.new(StandardError)
-
- # Given a string containing both a Git tree-ish, such as a branch or tag, and
- # a filesystem path joined by forward slashes, attempts to separate the two.
- #
- # Expects a @project instance variable to contain the active project. This is
- # used to check the input against a list of valid repository refs.
- #
- # Examples
- #
- # # No @project available
- # extract_ref('master')
- # # => ['', '']
- #
- # extract_ref('master')
- # # => ['master', '']
- #
- # extract_ref("f4b14494ef6abf3d144c28e4af0c20143383e062/CHANGELOG")
- # # => ['f4b14494ef6abf3d144c28e4af0c20143383e062', 'CHANGELOG']
- #
- # extract_ref("v2.0.0/README.md")
- # # => ['v2.0.0', 'README.md']
- #
- # extract_ref('master/app/models/project.rb')
- # # => ['master', 'app/models/project.rb']
- #
- # extract_ref('issues/1234/app/models/project.rb')
- # # => ['issues/1234', 'app/models/project.rb']
- #
- # # Given an invalid branch, we fall back to just splitting on the first slash
- # extract_ref('non/existent/branch/README.md')
- # # => ['non', 'existent/branch/README.md']
- #
- # Returns an Array where the first value is the tree-ish and the second is the
- # path
- def extract_ref(id)
- pair = ['', '']
-
- return pair unless @project # rubocop:disable Gitlab/ModuleWithInstanceVariables
-
- if id =~ /^(\h{40})(.+)/
- # If the ref appears to be a SHA, we're done, just split the string
- pair = $~.captures
- else
- # Otherwise, attempt to detect the ref using a list of the project's
- # branches and tags
-
- # Append a trailing slash if we only get a ref and no file path
- unless id.ends_with?('/')
- id = [id, '/'].join
- end
-
- valid_refs = ref_names.select { |v| id.start_with?("#{v}/") }
-
- if valid_refs.empty?
- # No exact ref match, so just try our best
- pair = id.match(%r{([^/]+)(.*)}).captures
- else
- # There is a distinct possibility that multiple refs prefix the ID.
- # Use the longest match to maximize the chance that we have the
- # right ref.
- best_match = valid_refs.max_by(&:length)
- # Partition the string into the ref and the path, ignoring the empty first value
- pair = id.partition(best_match)[1..-1]
- end
- end
-
- # Remove ending slashes from path
- pair[1].gsub!(%r{^/|/$}, '')
-
- pair
- end
+ extend ::Gitlab::Utils::Override
+ include ExtractsRef
# If we have an ID of 'foo.atom', and the controller provides Atom and HTML
# formats, then we have to check if the request was for the Atom version of
@@ -90,34 +19,17 @@ module ExtractsPath
valid_refs.max_by(&:length)
end
- # Assigns common instance variables for views working with Git tree-ish objects
- #
- # Assignments are:
- #
- # - @id - A string representing the joined ref and path
- # - @ref - A string representing the ref (e.g., the branch, tag, or commit SHA)
- # - @path - A string representing the filesystem path
- # - @commit - A Commit representing the commit from the given ref
- #
- # If the :id parameter appears to be requesting a specific response format,
- # that will be handled as well.
- #
- # If there is no path and the ref doesn't exist in the repo, try to resolve
- # the ref without an '.atom' suffix. If _that_ ref is found, set the request's
- # format to Atom manually.
+ # Extends the method to handle if there is no path and the ref doesn't
+ # exist in the repo, try to resolve the ref without an '.atom' suffix.
+ # If _that_ ref is found, set the request's format to Atom manually.
#
# Automatically renders `not_found!` if a valid tree path could not be
# resolved (e.g., when a user inserts an invalid path or ref).
+ #
# rubocop:disable Gitlab/ModuleWithInstanceVariables
+ override :assign_ref_vars
def assign_ref_vars
- @id = get_id
- @ref, @path = extract_ref(@id)
- @repo = @project.repository
- @ref.strip!
-
- raise InvalidPathError if @ref.match?(/\s/)
-
- @commit = @repo.commit(@ref)
+ super
if @path.empty? && !@commit && @id.ends_with?('.atom')
@id = @ref = extract_ref_without_atom(@id)
@@ -135,10 +47,6 @@ module ExtractsPath
end
# rubocop:enable Gitlab/ModuleWithInstanceVariables
- def tree
- @tree ||= @repo.tree(@commit.id, @path) # rubocop:disable Gitlab/ModuleWithInstanceVariables
- end
-
def lfs_blob_ids
blob_ids = tree.blobs.map(&:id)
@@ -146,21 +54,13 @@ module ExtractsPath
# the current Blob in order to determine if it's a LFS object
blob_ids = Array.wrap(@repo.blob_at(@commit.id, @path)&.id) if blob_ids.empty? # rubocop:disable Gitlab/ModuleWithInstanceVariables
- @lfs_blob_ids = Gitlab::Git::Blob.batch_lfs_pointers(@project.repository, blob_ids).map(&:id) # rubocop:disable Gitlab/ModuleWithInstanceVariables
+ @lfs_blob_ids = Gitlab::Git::Blob.batch_lfs_pointers(repository_container.repository, blob_ids).map(&:id) # rubocop:disable Gitlab/ModuleWithInstanceVariables
end
private
- # overridden in subclasses, do not remove
- def get_id
- id = [params[:id] || params[:ref]]
- id << "/" + params[:path] unless params[:path].blank?
- id.join
- end
-
- def ref_names
- return [] unless @project # rubocop:disable Gitlab/ModuleWithInstanceVariables
-
- @ref_names ||= @project.repository.ref_names # rubocop:disable Gitlab/ModuleWithInstanceVariables
+ override :repository_container
+ def repository_container
+ @project
end
end