Merge branch 'improve-mr-reloading' into 'master'
Improve MR reloading ## Theory Every time you pushed to master it updates merge requests that has master as target branch. So if you have 50 open merge requests point to master it will reload all of them every time you push a single commit to master. The funny thing is that after reloading diff of most merge requests looks the same. After this patch we update diff only if we push commit to master that includes in MR commits list. For example we have next repository: feature: A - B - C master: A We create merge request with code from feature to master. MR: B - C If we push to master commit D - MR will not be reloaded. So picture will look next: feature: A - B - C master: A - D MR: B - C And if we push to master commit B - MR will be reloaded. So picture will look next: feature: A - B - C master: A - B MR: C ## Benchmark For project with 45 open merge requests to master Before ``` Benchmark post-receive | Cache and size: 0.060000 0.040000 0.100000 ( 0.379720) Benchmark post-receive | Push commits selection: 0.130000 0.020000 0.150000 ( 0.149299) Benchmark post-receive | Update merge requests: 9.180000 2.030000 11.210000 ( 11.971747) Benchmark post-receive | Process commit messages: 0.140000 0.010000 0.150000 ( 0.168810) Benchmark post-receive | Push data: 0.020000 0.000000 0.020000 ( 0.016363) Benchmark post-receive | Push event and services: 0.030000 0.000000 0.030000 ( 0.088062) ``` After ``` Benchmark post-receive | Cache and size: 0.070000 0.030000 0.100000 ( 0.106676) Benchmark post-receive | Push commits selection: 0.130000 0.020000 0.150000 ( 0.143081) Benchmark post-receive | Update merge requests: 0.660000 0.210000 0.870000 ( 0.892663) Benchmark post-receive | Process commit messages: 0.030000 0.000000 0.030000 ( 0.029263) Benchmark post-receive | Push data: 0.020000 0.000000 0.020000 ( 0.018479) Benchmark post-receive | Push event and services: 0.030000 0.000000 0.030000 ( 0.038230) ``` - - - ## References Discussion in gitlab/gitlabhq#1796 See merge request !1288
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commit
c2e5343849
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@ -3,6 +3,7 @@ module MergeRequests
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def execute(oldrev, newrev, ref)
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return true unless ref =~ /heads/
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@oldrev, @newrev = oldrev, newrev
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@branch_name = ref.gsub("refs/heads/", "")
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@fork_merge_requests = @project.fork_merge_requests.opened
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@commits = @project.repository.commits_between(oldrev, newrev)
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@ -35,6 +36,10 @@ module MergeRequests
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end
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end
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def force_push?
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Gitlab::ForcePushCheck.force_push?(@project, @oldrev, @newrev)
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end
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# Refresh merge request diff if we push to source or target branch of merge request
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# Note: we should update merge requests from forks too
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def reload_merge_requests
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@ -43,8 +48,22 @@ module MergeRequests
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merge_requests = filter_merge_requests(merge_requests)
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merge_requests.each do |merge_request|
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merge_request.reload_code
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merge_request.mark_as_unchecked
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if merge_request.source_branch == @branch_name || force_push?
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merge_request.reload_code
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merge_request.mark_as_unchecked
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else
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mr_commit_ids = merge_request.commits.map(&:id)
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push_commit_ids = @commits.map(&:id)
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matches = mr_commit_ids & push_commit_ids
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if matches.any?
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merge_request.reload_code
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merge_request.mark_as_unchecked
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else
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merge_request.mark_as_unchecked
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end
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end
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end
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end
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@ -0,0 +1,15 @@
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module Gitlab
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class ForcePushCheck
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def self.force_push?(project, oldrev, newrev)
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return false if project.empty_repo?
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if oldrev != Gitlab::Git::BLANK_SHA && newrev != Gitlab::Git::BLANK_SHA
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missed_refs = IO.popen(%W(git --git-dir=#{project.repository.path_to_repo} rev-list #{oldrev} ^#{newrev})).read
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missed_refs.split("\n").size > 0
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else
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false
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end
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end
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end
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end
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@ -94,14 +94,7 @@ module Gitlab
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end
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def forced_push?(project, oldrev, newrev)
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return false if project.empty_repo?
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if oldrev != Gitlab::Git::BLANK_SHA && newrev != Gitlab::Git::BLANK_SHA
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missed_refs = IO.popen(%W(git --git-dir=#{project.repository.path_to_repo} rev-list #{oldrev} ^#{newrev})).read
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missed_refs.split("\n").size > 0
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else
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false
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end
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Gitlab::ForcePushCheck.force_push?(project, oldrev, newrev)
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end
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private
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