Commit 6bcc52a5 authored by Jacob Vosmaer's avatar Jacob Vosmaer

Refine Git garbage collection

parent e4c05de7
...@@ -117,6 +117,11 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController ...@@ -117,6 +117,11 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
:send_user_confirmation_email, :send_user_confirmation_email,
:container_registry_token_expire_delay, :container_registry_token_expire_delay,
:enabled_git_access_protocol, :enabled_git_access_protocol,
:housekeeping_enabled,
:housekeeping_bitmaps_enabled,
:housekeeping_incremental_repack_period,
:housekeeping_full_repack_period,
:housekeeping_gc_period,
repository_storages: [], repository_storages: [],
restricted_visibility_levels: [], restricted_visibility_levels: [],
import_sources: [], import_sources: [],
......
...@@ -85,6 +85,18 @@ class ApplicationSetting < ActiveRecord::Base ...@@ -85,6 +85,18 @@ class ApplicationSetting < ActiveRecord::Base
presence: { message: 'Domain blacklist cannot be empty if Blacklist is enabled.' }, presence: { message: 'Domain blacklist cannot be empty if Blacklist is enabled.' },
if: :domain_blacklist_enabled? if: :domain_blacklist_enabled?
validates :housekeeping_incremental_repack_period,
presence: true,
numericality: { only_integer: true, greater_than: 0 }
validates :housekeeping_full_repack_period,
presence: true,
numericality: { only_integer: true, greater_than: :housekeeping_incremental_repack_period }
validates :housekeeping_gc_period,
presence: true,
numericality: { only_integer: true, greater_than: :housekeeping_full_repack_period }
validates_each :restricted_visibility_levels do |record, attr, value| validates_each :restricted_visibility_levels do |record, attr, value|
unless value.nil? unless value.nil?
value.each do |level| value.each do |level|
...@@ -168,6 +180,11 @@ class ApplicationSetting < ActiveRecord::Base ...@@ -168,6 +180,11 @@ class ApplicationSetting < ActiveRecord::Base
container_registry_token_expire_delay: 5, container_registry_token_expire_delay: 5,
repository_storages: ['default'], repository_storages: ['default'],
user_default_external: false, user_default_external: false,
housekeeping_enabled: true,
housekeeping_bitmaps_enabled: true,
housekeeping_incremental_repack_period: 10,
housekeeping_full_repack_period: 50,
housekeeping_gc_period: 200,
) )
end end
......
...@@ -7,6 +7,8 @@ ...@@ -7,6 +7,8 @@
# #
module Projects module Projects
class HousekeepingService < BaseService class HousekeepingService < BaseService
include Gitlab::CurrentSettings
LEASE_TIMEOUT = 3600 LEASE_TIMEOUT = 3600
class LeaseTaken < StandardError class LeaseTaken < StandardError
...@@ -20,13 +22,14 @@ module Projects ...@@ -20,13 +22,14 @@ module Projects
end end
def execute def execute
raise LeaseTaken unless try_obtain_lease lease_uuid = try_obtain_lease
raise LeaseTaken unless lease_uuid.present?
execute_gitlab_shell_gc execute_gitlab_shell_gc(lease_uuid)
end end
def needed? def needed?
@project.pushes_since_gc >= 10 pushes_since_gc > 0 && period_match? && housekeeping_enabled?
end end
def increment! def increment!
...@@ -37,19 +40,59 @@ module Projects ...@@ -37,19 +40,59 @@ module Projects
private private
def execute_gitlab_shell_gc def execute_gitlab_shell_gc(lease_uuid)
GitGarbageCollectWorker.perform_async(@project.id) GitGarbageCollectWorker.perform_async(@project.id, task, lease_key, lease_uuid)
ensure ensure
Gitlab::Metrics.measure(:reset_pushes_since_gc) do if pushes_since_gc >= gc_period
@project.reset_pushes_since_gc Gitlab::Metrics.measure(:reset_pushes_since_gc) do
@project.reset_pushes_since_gc
end
end end
end end
def try_obtain_lease def try_obtain_lease
Gitlab::Metrics.measure(:obtain_housekeeping_lease) do Gitlab::Metrics.measure(:obtain_housekeeping_lease) do
lease = ::Gitlab::ExclusiveLease.new("project_housekeeping:#{@project.id}", timeout: LEASE_TIMEOUT) lease = ::Gitlab::ExclusiveLease.new(lease_key, timeout: LEASE_TIMEOUT)
lease.try_obtain lease.try_obtain
end end
end end
def lease_key
"project_housekeeping:#{@project.id}"
end
def pushes_since_gc
@project.pushes_since_gc
end
def task
if pushes_since_gc % gc_period == 0
:gc
elsif pushes_since_gc % full_repack_period == 0
:full_repack
else
:incremental_repack
end
end
def period_match?
[gc_period, full_repack_period, repack_period].any? { |period| pushes_since_gc % period == 0 }
end
def housekeeping_enabled?
current_application_settings.housekeeping_enabled
end
def gc_period
current_application_settings.housekeeping_gc_period
end
def full_repack_period
current_application_settings.housekeeping_full_repack_period
end
def repack_period
current_application_settings.housekeeping_incremental_repack_period
end
end end
end end
...@@ -422,5 +422,44 @@ ...@@ -422,5 +422,44 @@
Enable this option to include the name of the author of the issue, Enable this option to include the name of the author of the issue,
merge request or comment in the email body instead. merge request or comment in the email body instead.
%fieldset
%legend Automatic Git repository housekeeping
.form-group
.col-sm-offset-2.col-sm-10
.checkbox
= f.label :housekeeping_enabled do
= f.check_box :housekeeping_enabled
Enable automatic repository housekeeping (git repack, git gc)
.help-block
If you keep automatic housekeeping disabled for a long time Git
repository access on your GitLab server will become slower and your
repositories will use more disk space. We recommend to always leave
this enabled.
.checkbox
= f.label :housekeeping_bitmaps_enabled do
= f.check_box :housekeeping_bitmaps_enabled
Enable Git pack file bitmap creation
.help-block
Creating pack file bitmaps makes housekeeping take a little longer but
bitmaps should accelerate 'git clone' performance.
.form-group
= f.label :housekeeping_incremental_repack_period, 'Incremental repack period', class: 'control-label col-sm-2'
.col-sm-10
= f.number_field :housekeeping_incremental_repack_period, class: 'form-control'
.help-block
Number of Git pushes after which an incremental 'git repack' is run.
.form-group
= f.label :housekeeping_full_repack_period, 'Full repack period', class: 'control-label col-sm-2'
.col-sm-10
= f.number_field :housekeeping_full_repack_period, class: 'form-control'
.help-block
Number of Git pushes after which a full 'git repack' is run.
.form-group
= f.label :housekeeping_gc_period, 'Git GC period', class: 'control-label col-sm-2'
.col-sm-10
= f.number_field :housekeeping_gc_period, class: 'form-control'
.help-block
Number of Git pushes after which 'git gc' is run.
.form-actions .form-actions
= f.submit 'Save', class: 'btn btn-save' = f.submit 'Save', class: 'btn btn-save'
class GitGarbageCollectWorker class GitGarbageCollectWorker
include Sidekiq::Worker include Sidekiq::Worker
include Gitlab::ShellAdapter
include DedicatedSidekiqQueue include DedicatedSidekiqQueue
include Gitlab::CurrentSettings
sidekiq_options retry: false sidekiq_options retry: false
def perform(project_id) def perform(project_id, task = :gc, lease_key = nil, lease_uuid = nil)
project = Project.find(project_id) project = Project.find(project_id)
task = task.to_sym
cmd = command(task)
repo_path = project.repository.path_to_repo
description = "'#{cmd.join(' ')}' in #{repo_path}"
Gitlab::GitLogger.info(description)
output, status = Gitlab::Popen.popen(cmd, repo_path)
Gitlab::GitLogger.error("#{description} failed:\n#{output}") unless status.zero?
gitlab_shell.gc(project.repository_storage_path, project.path_with_namespace)
# Refresh the branch cache in case garbage collection caused a ref lookup to fail # Refresh the branch cache in case garbage collection caused a ref lookup to fail
flush_ref_caches(project) if task == :gc
ensure
Gitlab::ExclusiveLease.cancel(lease_key, lease_uuid) if lease_key.present? && lease_uuid.present?
end
private
def command(task)
case task
when :gc
git(write_bitmaps: bitmaps_enabled?) + %w[gc]
when :full_repack
git(write_bitmaps: bitmaps_enabled?) + %w[repack -A -d --pack-kept-objects]
when :incremental_repack
# Normal git repack fails when bitmaps are enabled. It is impossible to
# create a bitmap here anyway.
git(write_bitmaps: false) + %w[repack -d]
else
raise "Invalid gc task: #{task.inspect}"
end
end
def flush_ref_caches(project)
project.repository.after_create_branch project.repository.after_create_branch
project.repository.branch_names project.repository.branch_names
project.repository.has_visible_content? project.repository.has_visible_content?
end end
def bitmaps_enabled?
current_application_settings.housekeeping_bitmaps_enabled
end
def git(write_bitmaps:)
config_value = write_bitmaps ? 'true' : 'false'
%W[git -c repack.writeBitmaps=#{config_value}]
end
end end
---
title: Finer-grained Git gargage collection
merge_request: 6588
author:
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class AddHousekeepingToApplicationSettings < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = false
# When a migration requires downtime you **must** uncomment the following
# constant and define a short and easy to understand explanation as to why the
# migration requires downtime.
# DOWNTIME_REASON = ''
disable_ddl_transaction!
def up
add_column_with_default(:application_settings, :housekeeping_enabled, :boolean, default: true, allow_null: false)
add_column_with_default(:application_settings, :housekeeping_bitmaps_enabled, :boolean, default: true, allow_null: false)
add_column_with_default(:application_settings, :housekeeping_incremental_repack_period, :integer, default: 10, allow_null: false)
add_column_with_default(:application_settings, :housekeeping_full_repack_period, :integer, default: 50, allow_null: false)
add_column_with_default(:application_settings, :housekeeping_gc_period, :integer, default: 200, allow_null: false)
end
def down
remove_column(:application_settings, :housekeeping_enabled, :boolean, default: true, allow_null: false)
remove_column(:application_settings, :housekeeping_bitmaps_enabled, :boolean, default: true, allow_null: false)
remove_column(:application_settings, :housekeeping_incremental_repack_period, :integer, default: 10, allow_null: false)
remove_column(:application_settings, :housekeeping_full_repack_period, :integer, default: 50, allow_null: false)
remove_column(:application_settings, :housekeeping_gc_period, :integer, default: 200, allow_null: false)
end
end
...@@ -98,6 +98,11 @@ ActiveRecord::Schema.define(version: 20161103171205) do ...@@ -98,6 +98,11 @@ ActiveRecord::Schema.define(version: 20161103171205) do
t.text "help_page_text_html" t.text "help_page_text_html"
t.text "shared_runners_text_html" t.text "shared_runners_text_html"
t.text "after_sign_up_text_html" t.text "after_sign_up_text_html"
t.boolean "housekeeping_enabled", default: true, null: false
t.boolean "housekeeping_bitmaps_enabled", default: true, null: false
t.integer "housekeeping_incremental_repack_period", default: 10, null: false
t.integer "housekeeping_full_repack_period", default: 50, null: false
t.integer "housekeeping_gc_period", default: 200, null: false
end end
create_table "audit_events", force: :cascade do |t| create_table "audit_events", force: :cascade do |t|
......
...@@ -3,6 +3,14 @@ ...@@ -3,6 +3,14 @@
> [Introduced][ce-2371] in GitLab 8.4. > [Introduced][ce-2371] in GitLab 8.4.
--- ---
## Automatic housekeeping
GitLab automatically runs `git gc` and `git repack` on repositories
after Git pushes. If needed you can change how often this happens, or
to turn it off, go to **Admin area > Settings**
(`/admin/application_settings`).
## Manual housekeeping
The housekeeping function runs `git gc` ([man page][man]) on the current The housekeeping function runs `git gc` ([man page][man]) on the current
project Git repository. project Git repository.
......
...@@ -127,19 +127,6 @@ module Gitlab ...@@ -127,19 +127,6 @@ module Gitlab
'rm-project', storage, "#{name}.git"]) 'rm-project', storage, "#{name}.git"])
end end
# Gc repository
#
# storage - project storage path
# path - project path with namespace
#
# Ex.
# gc("/path/to/storage", "gitlab/gitlab-ci")
#
def gc(storage, path)
Gitlab::Utils.system_silent([gitlab_shell_projects_path, 'gc',
storage, "#{path}.git"])
end
# Add new key to gitlab-shell # Add new key to gitlab-shell
# #
# Ex. # Ex.
......
require 'securerandom'
module Gitlab module Gitlab
# This class implements an 'exclusive lease'. We call it a 'lease' # This class implements an 'exclusive lease'. We call it a 'lease'
# because it has a set expiry time. We call it 'exclusive' because only # because it has a set expiry time. We call it 'exclusive' because only
# one caller may obtain a lease for a given key at a time. The # one caller may obtain a lease for a given key at a time. The
# implementation is intended to work across GitLab processes and across # implementation is intended to work across GitLab processes and across
# servers. It is a 'cheap' alternative to using SQL queries and updates: # servers. It is a cheap alternative to using SQL queries and updates:
# you do not need to change the SQL schema to start using # you do not need to change the SQL schema to start using
# ExclusiveLease. # ExclusiveLease.
# #
# It is important to choose the timeout wisely. If the timeout is very
# high (1 hour) then the throughput of your operation gets very low (at
# most once an hour). If the timeout is lower than how long your
# operation may take then you cannot count on exclusivity. For example,
# if the timeout is 10 seconds and you do an operation which may take 20
# seconds then two overlapping operations may hold a lease for the same
# key at the same time.
#
# This class has no 'cancel' method. I originally decided against adding
# it because it would add complexity and a false sense of security. The
# complexity: instead of setting '1' we would have to set a UUID, and to
# delete it we would have to execute Lua on the Redis server to only
# delete the key if the value was our own UUID. Otherwise there is a
# chance that when you intend to cancel your lease you actually delete
# someone else's. The false sense of security: you cannot design your
# system to rely too much on the lease being cancelled after use because
# the calling (Ruby) process may crash or be killed. You _cannot_ count
# on begin/ensure blocks to cancel a lease, because the 'ensure' does
# not always run. Think of 'kill -9' from the Unicorn master for
# instance.
#
# If you find that leases are getting in your way, ask yourself: would
# it be enough to lower the lease timeout? Another thing that might be
# appropriate is to only use a lease for bulk/automated operations, and
# to ignore the lease when you get a single 'manual' user request (a
# button click).
#
class ExclusiveLease class ExclusiveLease
LUA_CANCEL_SCRIPT = <<-EOS
local key, uuid = KEYS[1], ARGV[1]
if redis.call("get", key) == uuid then
redis.call("del", key)
end
EOS
def self.cancel(key, uuid)
Gitlab::Redis.with do |redis|
redis.eval(LUA_CANCEL_SCRIPT, keys: [redis_key(key)], argv: [uuid])
end
end
def self.redis_key(key)
"gitlab:exclusive_lease:#{key}"
end
def initialize(key, timeout:) def initialize(key, timeout:)
@key, @timeout = key, timeout @redis_key = self.class.redis_key(key)
@timeout = timeout
@uuid = SecureRandom.uuid
end end
# Try to obtain the lease. Return true on success, # Try to obtain the lease. Return lease UUID on success,
# false if the lease is already taken. # false if the lease is already taken.
def try_obtain def try_obtain
# Performing a single SET is atomic # Performing a single SET is atomic
Gitlab::Redis.with do |redis| Gitlab::Redis.with do |redis|
!!redis.set(redis_key, '1', nx: true, ex: @timeout) redis.set(@redis_key, @uuid, nx: true, ex: @timeout) && @uuid
end end
end end
# Returns true if the key for this lease is set. # Returns true if the key for this lease is set.
def exists? def exists?
Gitlab::Redis.with do |redis| Gitlab::Redis.with do |redis|
redis.exists(redis_key) redis.exists(@redis_key)
end end
end end
# No #cancel method. See comments above!
private
def redis_key
"gitlab:exclusive_lease:#{@key}"
end
end end
end end
...@@ -14,7 +14,6 @@ describe Gitlab::Shell, lib: true do ...@@ -14,7 +14,6 @@ describe Gitlab::Shell, lib: true do
it { is_expected.to respond_to :add_repository } it { is_expected.to respond_to :add_repository }
it { is_expected.to respond_to :remove_repository } it { is_expected.to respond_to :remove_repository }
it { is_expected.to respond_to :fork_repository } it { is_expected.to respond_to :fork_repository }
it { is_expected.to respond_to :gc }
it { is_expected.to respond_to :add_namespace } it { is_expected.to respond_to :add_namespace }
it { is_expected.to respond_to :rm_namespace } it { is_expected.to respond_to :rm_namespace }
it { is_expected.to respond_to :mv_namespace } it { is_expected.to respond_to :mv_namespace }
......
...@@ -5,32 +5,47 @@ describe Gitlab::ExclusiveLease, type: :redis do ...@@ -5,32 +5,47 @@ describe Gitlab::ExclusiveLease, type: :redis do
describe '#try_obtain' do describe '#try_obtain' do
it 'cannot obtain twice before the lease has expired' do it 'cannot obtain twice before the lease has expired' do
lease = Gitlab::ExclusiveLease.new(unique_key, timeout: 3600) lease = described_class.new(unique_key, timeout: 3600)
expect(lease.try_obtain).to eq(true) expect(lease.try_obtain).to be_present
expect(lease.try_obtain).to eq(false) expect(lease.try_obtain).to eq(false)
end end
it 'can obtain after the lease has expired' do it 'can obtain after the lease has expired' do
timeout = 1 timeout = 1
lease = Gitlab::ExclusiveLease.new(unique_key, timeout: timeout) lease = described_class.new(unique_key, timeout: timeout)
lease.try_obtain # start the lease lease.try_obtain # start the lease
sleep(2 * timeout) # lease should have expired now sleep(2 * timeout) # lease should have expired now
expect(lease.try_obtain).to eq(true) expect(lease.try_obtain).to be_present
end end
end end
describe '#exists?' do describe '#exists?' do
it 'returns true for an existing lease' do it 'returns true for an existing lease' do
lease = Gitlab::ExclusiveLease.new(unique_key, timeout: 3600) lease = described_class.new(unique_key, timeout: 3600)
lease.try_obtain lease.try_obtain
expect(lease.exists?).to eq(true) expect(lease.exists?).to eq(true)
end end
it 'returns false for a lease that does not exist' do it 'returns false for a lease that does not exist' do
lease = Gitlab::ExclusiveLease.new(unique_key, timeout: 3600) lease = described_class.new(unique_key, timeout: 3600)
expect(lease.exists?).to eq(false) expect(lease.exists?).to eq(false)
end end
end end
describe '.cancel' do
it 'can cancel a lease' do
uuid = new_lease(unique_key)
expect(uuid).to be_present
expect(new_lease(unique_key)).to eq(false)
described_class.cancel(unique_key, uuid)
expect(new_lease(unique_key)).to be_present
end
def new_lease(key)
described_class.new(key, timeout: 3600).try_obtain
end
end
end end
...@@ -98,6 +98,24 @@ describe ApplicationSetting, models: true do ...@@ -98,6 +98,24 @@ describe ApplicationSetting, models: true do
end end
end end
end end
context 'housekeeping settings' do
it { is_expected.not_to allow_value(0).for(:housekeeping_incremental_repack_period) }
it 'wants the full repack period to be longer than the incremental repack period' do
subject.housekeeping_incremental_repack_period = 2
subject.housekeeping_full_repack_period = 1
expect(subject).not_to be_valid
end
it 'wants the gc period to be longer than the full repack period' do
subject.housekeeping_full_repack_period = 2
subject.housekeeping_gc_period = 1
expect(subject).not_to be_valid
end
end
end end
context 'restricted signup domains' do context 'restricted signup domains' do
......
...@@ -14,8 +14,10 @@ describe Projects::HousekeepingService do ...@@ -14,8 +14,10 @@ describe Projects::HousekeepingService do
describe '#execute' do describe '#execute' do
it 'enqueues a sidekiq job' do it 'enqueues a sidekiq job' do
expect(subject).to receive(:try_obtain_lease).and_return(true) expect(subject).to receive(:try_obtain_lease).and_return(:the_uuid)
expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id) expect(subject).to receive(:lease_key).and_return(:the_lease_key)
expect(subject).to receive(:task).and_return(:the_task)
expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :the_task, :the_lease_key, :the_uuid)
subject.execute subject.execute
expect(project.reload.pushes_since_gc).to eq(0) expect(project.reload.pushes_since_gc).to eq(0)
...@@ -58,4 +60,26 @@ describe Projects::HousekeepingService do ...@@ -58,4 +60,26 @@ describe Projects::HousekeepingService do
end.to change { project.pushes_since_gc }.from(0).to(1) end.to change { project.pushes_since_gc }.from(0).to(1)
end end
end end
it 'uses all three kinds of housekeeping we offer' do
allow(subject).to receive(:try_obtain_lease).and_return(:the_uuid)
allow(subject).to receive(:lease_key).and_return(:the_lease_key)
# At push 200
expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :gc, :the_lease_key, :the_uuid).
exactly(1).times
# At push 50, 100, 150
expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :full_repack, :the_lease_key, :the_uuid).
exactly(3).times
# At push 10, 20, ... (except those above)
expect(GitGarbageCollectWorker).to receive(:perform_async).with(project.id, :incremental_repack, :the_lease_key, :the_uuid).
exactly(16).times
201.times do
subject.increment!
subject.execute if subject.needed?
end
expect(project.pushes_since_gc).to eq(1)
end
end end
require 'digest'
require 'fileutils'
require 'spec_helper' require 'spec_helper'
describe GitGarbageCollectWorker do describe GitGarbageCollectWorker do
...@@ -6,16 +9,12 @@ describe GitGarbageCollectWorker do ...@@ -6,16 +9,12 @@ describe GitGarbageCollectWorker do
subject { GitGarbageCollectWorker.new } subject { GitGarbageCollectWorker.new }
before do
allow(subject).to receive(:gitlab_shell).and_return(shell)
end
describe "#perform" do describe "#perform" do
it "runs `git gc`" do it "flushes ref caches when the task is 'gc'" do
expect(shell).to receive(:gc).with( expect(subject).to receive(:command).with(:gc).and_return([:the, :command])
project.repository_storage_path, expect(Gitlab::Popen).to receive(:popen).
project.path_with_namespace). with([:the, :command], project.repository.path_to_repo).and_return(["", 0])
and_return(true)
expect_any_instance_of(Repository).to receive(:after_create_branch).and_call_original expect_any_instance_of(Repository).to receive(:after_create_branch).and_call_original
expect_any_instance_of(Repository).to receive(:branch_names).and_call_original expect_any_instance_of(Repository).to receive(:branch_names).and_call_original
expect_any_instance_of(Repository).to receive(:branch_count).and_call_original expect_any_instance_of(Repository).to receive(:branch_count).and_call_original
...@@ -23,5 +22,110 @@ describe GitGarbageCollectWorker do ...@@ -23,5 +22,110 @@ describe GitGarbageCollectWorker do
subject.perform(project.id) subject.perform(project.id)
end end
shared_examples 'gc tasks' do
before { allow(subject).to receive(:bitmaps_enabled?).and_return(bitmaps_enabled) }
it 'incremental repack adds a new packfile' do
create_objects(project)
before_packs = packs(project)
expect(before_packs.count).to be >= 1
subject.perform(project.id, 'incremental_repack')
after_packs = packs(project)
# Exactly one new pack should have been created
expect(after_packs.count).to eq(before_packs.count + 1)
# Previously existing packs are still around
expect(before_packs & after_packs).to eq(before_packs)
end
it 'full repack consolidates into 1 packfile' do
create_objects(project)
subject.perform(project.id, 'incremental_repack')
before_packs = packs(project)
expect(before_packs.count).to be >= 2
subject.perform(project.id, 'full_repack')
after_packs = packs(project)
expect(after_packs.count).to eq(1)
# Previously existing packs should be gone now
expect(after_packs - before_packs).to eq(after_packs)
expect(File.exist?(bitmap_path(after_packs.first))).to eq(bitmaps_enabled)
end
it 'gc consolidates into 1 packfile and updates packed-refs' do
create_objects(project)
before_packs = packs(project)
before_packed_refs = packed_refs(project)
expect(before_packs.count).to be >= 1
subject.perform(project.id, 'gc')
after_packed_refs = packed_refs(project)
after_packs = packs(project)
expect(after_packs.count).to eq(1)
# Previously existing packs should be gone now
expect(after_packs - before_packs).to eq(after_packs)
# The packed-refs file should have been updated during 'git gc'
expect(before_packed_refs).not_to eq(after_packed_refs)
expect(File.exist?(bitmap_path(after_packs.first))).to eq(bitmaps_enabled)
end
end
context 'with bitmaps enabled' do
let(:bitmaps_enabled) { true }
include_examples 'gc tasks'
end
context 'with bitmaps disabled' do
let(:bitmaps_enabled) { false }
include_examples 'gc tasks'
end
end
# Create a new commit on a random new branch
def create_objects(project)
rugged = project.repository.rugged
old_commit = rugged.branches.first.target
new_commit_sha = Rugged::Commit.create(
rugged,
message: "hello world #{SecureRandom.hex(6)}",
author: Gitlab::Git::committer_hash(email: 'foo@bar', name: 'baz'),
committer: Gitlab::Git::committer_hash(email: 'foo@bar', name: 'baz'),
tree: old_commit.tree,
parents: [old_commit],
)
project.repository.update_ref!(
"refs/heads/#{SecureRandom.hex(6)}",
new_commit_sha,
Gitlab::Git::BLANK_SHA
)
end
def packs(project)
Dir["#{project.repository.path_to_repo}/objects/pack/*.pack"]
end
def packed_refs(project)
path = "#{project.repository.path_to_repo}/packed-refs"
FileUtils.touch(path)
File.read(path)
end
def bitmap_path(pack)
pack.sub(/\.pack\z/, '.bitmap')
end end
end end
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