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Bo
a2f00256ba
The single errcheck finding that failed check-go-lint (bats 168) and the go-gate-shadow on the #923 post-merge run.
36 lines
1.3 KiB
Go
36 lines
1.3 KiB
Go
// Package testsupport holds process-level isolation helpers shared by
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// TestMain functions across packages. It is imported only from _test.go
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// files and must stay free of production dependencies.
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package testsupport
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import "os"
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// GitDiscoveryEnvVars are the repository-discovery variables git injects
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// into hook processes (and that shells can leak into any child). When one
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// of these points at a real repository, every fixture `git init` /
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// `git config` a test runs is silently redirected there — the mechanism
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// behind the age-cmdao-core-bare-pollution-ek8v corruption, where a
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// worktree-origin hook run re-initialized the shared .git as bare
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// (core.bare=true), bricking git operations repo-wide.
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var GitDiscoveryEnvVars = []string{
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"GIT_DIR",
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"GIT_WORK_TREE",
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"GIT_INDEX_FILE",
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"GIT_PREFIX",
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"GIT_OBJECT_DIRECTORY",
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"GIT_COMMON_DIR",
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"GIT_NAMESPACE",
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}
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// ScrubGitDiscoveryEnv unsets GitDiscoveryEnvVars for the whole test
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// process. Call it from TestMain, before m.Run(), in any package whose
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// tests shell out to git (directly or through production code) so fixture
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// git operations can only ever act on the directories the tests create.
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// No restore is needed: the test process owns its environment and exits
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// after m.Run().
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func ScrubGitDiscoveryEnv() {
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for _, key := range GitDiscoveryEnvVars {
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_ = os.Unsetenv(key)
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}
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}
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