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Delete marker file before fetching an external repository #14323

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Nov 25, 2021
Merged

Delete marker file before fetching an external repository #14323

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5 changes: 5 additions & 0 deletions ...main/java/com/google/devtools/build/lib/rules/repository/RepositoryDelegatorFunction.java
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Original file line number Diff line number Diff line change
Expand Up @@ -339,6 +339,11 @@ && managedDirectoriesExist(directories.getWorkspace(), managedDirectories)) {
}

if (isFetch.get()) {
// Fetching a repository is a long-running operation that can easily be interrupted. If it is
// and the marker file exists on disk, a new call of this method may treat this repository as
// valid even though it is in an inconsistent state. Clear the marker file and only recreate
// it after fetching is done to prevent this scenario.
DigestWriter.clearMarkerFile(directories, repositoryName);
// Fetching enabled, go ahead.
RepositoryDirectoryValue.Builder builder =
fetchRepository(skyKey, repoRoot, env, digestWriter.getMarkerData(), handler, rule);
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