Commit dec6b31c authored by Stan Hu's avatar Stan Hu

Fix Error 500 when attempting to retrieve project license when HEAD points to non-existent ref

Closes #17537
parent c3f68b10
......@@ -3,6 +3,7 @@ Please view this file on the master branch, on stable branches it's out of date.
v 8.8.0 (unreleased)
- Snippets tab under user profile. !4001 (Long Nguyen)
- Fix error when using link to uploads in global snippets
- Fix Error 500 when attempting to retrieve project license when HEAD points to non-existent ref
- Assign labels and milestone to target project when moving issue. !3934 (Long Nguyen)
- Use a case-insensitive comparison in sanitizing URI schemes
- Project#open_branches has been cleaned up and no longer loads entire records into memory.
......
......@@ -475,7 +475,7 @@ class Repository
end
def license_blob
return nil if !exists? || empty?
return nil unless head_exists?
cache.fetch(:license_blob) do
tree(:head).blobs.find do |file|
......@@ -485,7 +485,7 @@ class Repository
end
def license_key
return nil if !exists? || empty?
return nil unless head_exists?
cache.fetch(:license_key) do
Licensee.license(path).try(:key)
......@@ -493,7 +493,7 @@ class Repository
end
def gitlab_ci_yml
return nil if !exists? || empty?
return nil unless head_exists?
@gitlab_ci_yml ||= tree(:head).blobs.find do |file|
file.name == '.gitlab-ci.yml'
......@@ -961,7 +961,7 @@ class Repository
end
def main_language
return if empty? || rugged.head_unborn?
return unless head_exists?
Linguist::Repository.new(rugged, rugged.head.target_id).language
end
......@@ -981,4 +981,8 @@ class Repository
def cache
@cache ||= RepositoryCache.new(path_with_namespace)
end
def head_exists?
exists? && !empty? && !rugged.head_unborn?
end
end
......@@ -176,6 +176,15 @@ describe Repository, models: true do
repository.remove_file(user, 'LICENSE', 'Remove LICENSE', 'master')
end
it 'handles when HEAD points to non-existent ref' do
repository.commit_file(user, 'LICENSE', 'Copyright!', 'Add LICENSE', 'master', false)
rugged = double('rugged')
expect(rugged).to receive(:head_unborn?).and_return(true)
expect(repository).to receive(:rugged).and_return(rugged)
expect(repository.license_blob).to be_nil
end
it 'looks in the root_ref only' do
repository.remove_file(user, 'LICENSE', 'Remove LICENSE', 'markdown')
repository.commit_file(user, 'LICENSE', Licensee::License.new('mit').content, 'Add LICENSE', 'markdown', false)
......@@ -204,6 +213,15 @@ describe Repository, models: true do
repository.remove_file(user, 'LICENSE', 'Remove LICENSE', 'master')
end
it 'handles when HEAD points to non-existent ref' do
repository.commit_file(user, 'LICENSE', 'Copyright!', 'Add LICENSE', 'master', false)
rugged = double('rugged')
expect(rugged).to receive(:head_unborn?).and_return(true)
expect(repository).to receive(:rugged).and_return(rugged)
expect(repository.license_key).to be_nil
end
it 'returns nil when no license is detected' do
expect(repository.license_key).to be_nil
end
......
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