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138942c09e- Go's deadcode eliminator is quite simple, if you put a public function in a package `aa/bb` that is used only by tests, it would still be built if package `aa/bb` was imported. This means that if such functions use libraries relevant only to tests that those libraries would still be be built and increase the binary size of a Go binary. - This is also the case with Forgejo, `models/migrations/base/tests.go` contained functions exclusively used by tests which (skipping some steps here) imports https://github.com/ClickHouse/clickhouse-go, which is 2MiB. The `code.gitea.io/gitea/models/migrations/base` package is imported by `cmd/doctor` and thus the code of the clickhouse library is also built and included in the Forgejo binary, although entirely unused and not reachable. - This patch moves the test-related functions to their own package, so Go's deadcode eliminator knows not to build the test-related functions and thus reduces the size of the Forgejo binary. - It is not possible to move this to a `_test.go` file because Go does not allow importing functions from such files, so any test helper function must be in a non-test package and file. - Reduction of size (built with `TAGS="sqlite sqlite_unlock_notify" make build`): - Before: 95912040 bytes (92M) - After: 92306888 bytes (89M)
63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package v1_16 //nolint
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import (
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"testing"
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migration_tests "code.gitea.io/gitea/models/migrations/test"
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"github.com/stretchr/testify/assert"
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)
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func Test_AddTableCommitStatusIndex(t *testing.T) {
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// Create the models used in the migration
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type CommitStatus struct {
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ID int64 `xorm:"pk autoincr"`
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Index int64 `xorm:"INDEX UNIQUE(repo_sha_index)"`
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RepoID int64 `xorm:"INDEX UNIQUE(repo_sha_index)"`
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SHA string `xorm:"VARCHAR(64) NOT NULL INDEX UNIQUE(repo_sha_index)"`
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}
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// Prepare and load the testing database
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x, deferable := migration_tests.PrepareTestEnv(t, 0, new(CommitStatus))
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if x == nil || t.Failed() {
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defer deferable()
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return
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}
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defer deferable()
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// Run the migration
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if err := AddTableCommitStatusIndex(x); err != nil {
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assert.NoError(t, err)
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return
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}
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type CommitStatusIndex struct {
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ID int64
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RepoID int64 `xorm:"unique(repo_sha)"`
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SHA string `xorm:"unique(repo_sha)"`
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MaxIndex int64 `xorm:"index"`
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}
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start := 0
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const batchSize = 1000
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for {
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indexes := make([]CommitStatusIndex, 0, batchSize)
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err := x.Table("commit_status_index").Limit(batchSize, start).Find(&indexes)
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assert.NoError(t, err)
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for _, idx := range indexes {
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var maxIndex int
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has, err := x.SQL("SELECT max(`index`) FROM commit_status WHERE repo_id = ? AND sha = ?", idx.RepoID, idx.SHA).Get(&maxIndex)
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assert.NoError(t, err)
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assert.True(t, has)
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assert.EqualValues(t, maxIndex, idx.MaxIndex)
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}
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if len(indexes) < batchSize {
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break
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}
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start += len(indexes)
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}
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}
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