118 lines
3.5 KiB
Ruby
118 lines
3.5 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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class TreeSummary
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include ::Gitlab::Utils::StrongMemoize
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include ::MarkupHelper
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CACHE_EXPIRE_IN = 1.hour
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MAX_OFFSET = (2**31) - 1
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attr_reader :commit, :project, :path, :offset, :limit, :user, :resolved_commits
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def initialize(commit, project, user, params = {})
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@commit = commit
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@project = project
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@user = user
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@path = params.fetch(:path, nil).presence
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@offset = [params.fetch(:offset, 0).to_i, MAX_OFFSET].min
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@limit = (params.fetch(:limit, 25) || 25).to_i
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# Ensure that if multiple tree entries share the same last commit, they share
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# a ::Commit instance. This prevents us from rendering the same commit title
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# multiple times
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@resolved_commits = {}
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end
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# Creates a summary of the tree entries for a commit, within the window of
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# entries defined by the offset and limit parameters. This consists of two
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# return values:
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#
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# - An Array of Hashes containing the following keys:
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# - file_name: The full path of the tree entry
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# - commit: The last ::Commit to touch this entry in the tree
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# - commit_path: URI of the commit in the web interface
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# - commit_title_html: Rendered commit title
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def summarize
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return [] if offset < 0
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commits_hsh = fetch_last_cached_commits_list
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prerender_commit_full_titles!(commits_hsh.values)
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commits_hsh.map do |path_key, commit|
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commit = cache_commit(commit)
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{
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file_name: File.basename(path_key).force_encoding(Encoding::UTF_8),
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commit: commit,
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commit_path: commit_path(commit),
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commit_title_html: markdown_field(commit, :full_title)
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}
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end
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end
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def fetch_logs
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logs = summarize
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[logs.first(limit).as_json, next_offset(logs.size)]
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end
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private
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def next_offset(entries_count)
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return if entries_count <= limit
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offset + limit
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end
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def repository
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project.repository
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end
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# Ensure the path is in "path/" format
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def ensured_path
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File.join(*[path, ""]) if path
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end
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def fetch_last_cached_commits_list
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cache_key = ['projects', project.id, 'last_commits', commit.id, ensured_path, offset, limit + 1]
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commits = Rails.cache.fetch(cache_key, expires_in: CACHE_EXPIRE_IN) do
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repository
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.list_last_commits_for_tree(commit.id, ensured_path, offset: offset, limit: limit + 1, literal_pathspec: true)
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.tap { |tuple| prerender_commit_full_titles!(tuple.values) }
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.transform_values! { |commit| commit_to_hash(commit) }
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end
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commits.transform_values! { |value| Commit.from_hash(value, project) }
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end
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def cache_commit(commit)
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return unless commit.present?
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resolved_commits[commit.id] ||= commit
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end
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def commit_to_hash(commit)
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commit.to_hash.tap do |hash|
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hash[:message] = hash[:message].to_s.truncate_bytes(1.kilobyte, omission: '...')
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end
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end
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def commit_path(commit)
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Gitlab::Routing.url_helpers.project_commit_path(project, commit)
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end
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def prerender_commit_full_titles!(commits)
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# Preload commit authors as they are used in rendering
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commits.each(&:lazy_author)
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renderer = Banzai::ObjectRenderer.new(user: user, default_project: project)
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renderer.render(commits, :full_title)
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end
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end
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end
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Gitlab::TreeSummary.prepend_mod_with('Gitlab::TreeSummary')
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