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[credentialhelper] Ignore failing to provide request #17666

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[credentialhelper] Ignore failing to provide request #17666

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8 changes: 8 additions & 0 deletions ...main/java/com/google/devtools/build/lib/authandtls/credentialhelper/CredentialHelper.java
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Original file line number Diff line number Diff line change
Expand Up @@ -80,6 +80,14 @@ public GetCredentialsResponse getCredentials(CredentialHelperEnvironment environ
Reader stderr = new InputStreamReader(process.getErrorStream(), UTF_8)) {
try (Writer stdin = new OutputStreamWriter(process.getOutputStream(), UTF_8)) {
GSON.toJson(GetCredentialsRequest.newBuilder().setUri(uri).build(), stdin);
} catch (IOException e) {
// This can happen if the helper prints a static set of credentials without reading from
// stdin (e.g., with a simple shell script running `echo "{...}"`). If the process is
// already finished even though we failed to write to its stdin, ignore the error and
// assume the process did not need the request payload.
if (!process.finished()) {
throw e;
}
}

try {
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