@Override
protected void internalExecute(ActionExecutionContext actionExecutionContext)
throws ExecException, InterruptedException {
EventHandler reporter = actionExecutionContext.getExecutor().getEventHandler();
checkInputsForDirectories(reporter, actionExecutionContext.getMetadataHandler());
super.internalExecute(actionExecutionContext);
checkOutputsForDirectories(reporter);
}
@Override
public void execute(ActionExecutionContext actionExecutionContext)
throws ActionExecutionException, InterruptedException {
actionExecutionContext
.getExecutor()
.getContext(SymlinkTreeActionContext.class)
.createSymlinks(this, actionExecutionContext, shExecutable);
}
/**
* Ensure the runfiles tree exists and is consistent with the TestAction's manifest
* ($0.runfiles_manifest), bringing it into consistency if not. The contents of the output file
* $0.runfiles/MANIFEST, if it exists, are used a proxy for the set of existing symlinks, to avoid
* the need for recursion.
*/
private static void updateLocalRunfilesDirectory(
TestRunnerAction testAction,
Path runfilesDir,
ActionExecutionContext actionExecutionContext,
BinTools binTools,
ImmutableMap<String, String> shellEnvironment,
boolean enableRunfiles)
throws ExecException, InterruptedException {
Executor executor = actionExecutionContext.getExecutor();
TestTargetExecutionSettings execSettings = testAction.getExecutionSettings();
try {
// Avoid rebuilding the runfiles directory if the manifest in it matches the input manifest,
// implying the symlinks exist and are already up to date.
if (Arrays.equals(
runfilesDir.getRelative("MANIFEST").getMD5Digest(),
execSettings.getInputManifest().getPath().getMD5Digest())) {
return;
}
} catch (IOException e1) {
// Ignore it - we will just try to create runfiles directory.
}
executor
.getEventHandler()
.handle(
Event.progress(
"Building runfiles directory for '"
+ execSettings.getExecutable().prettyPrint()
+ "'."));
new SymlinkTreeHelper(execSettings.getInputManifest().getPath(), runfilesDir, false)
.createSymlinks(
testAction, actionExecutionContext, binTools, shellEnvironment, enableRunfiles);
executor.getEventHandler().handle(Event.progress(testAction.getProgressMessage()));
}
@Override
@ThreadCompatible
public void execute(ActionExecutionContext actionExecutionContext)
throws ActionExecutionException, InterruptedException {
Executor executor = actionExecutionContext.getExecutor();
// First, do a normal compilation, to generate the ".d" file. The generated object file is built
// to a temporary location (tempOutputFile) and ignored afterwards.
LOG.info("Generating " + getDotdFile());
CppCompileActionContext context = executor.getContext(actionContext);
CppCompileActionContext.Reply reply = null;
try {
// We delegate stdout/stderr to nowhere, i.e. same as redirecting to /dev/null.
reply = context.execWithReply(this, actionExecutionContext.withFileOutErr(new FileOutErr()));
} catch (ExecException e) {
// We ignore failures here (other than capturing the Distributor reply).
// The compilation may well fail (that's the whole point of negative compilation tests).
// We execute it here just for the side effect of generating the ".d" file.
reply = context.getReplyFromException(e, this);
if (reply == null) {
// This can only happen if the ExecException does not come from remote execution.
throw e.toActionExecutionException(
"Fake C++ Compilation of rule '" + getOwner().getLabel() + "'",
executor.getVerboseFailures(),
this);
}
}
IncludeScanningContext scanningContext = executor.getContext(IncludeScanningContext.class);
NestedSet<Artifact> discoveredInputs =
discoverInputsFromDotdFiles(
executor.getExecRoot(), scanningContext.getArtifactResolver(), reply);
reply = null; // Clear in-memory .d files early.
// Even cc_fake_binary rules need to properly declare their dependencies...
// In fact, they need to declare their dependencies even more than cc_binary rules do.
// CcCommonConfiguredTarget passes in an empty set of declaredIncludeDirs,
// so this check below will only allow inclusion of header files that are explicitly
// listed in the "srcs" of the cc_fake_binary or in the "srcs" of a cc_library that it
// depends on.
try {
validateInclusions(
discoveredInputs,
actionExecutionContext.getArtifactExpander(),
executor.getEventHandler());
} catch (ActionExecutionException e) {
// TODO(bazel-team): (2009) make this into an error, once most of the current warnings
// are fixed.
executor
.getEventHandler()
.handle(
Event.warn(
getOwner().getLocation(),
e.getMessage() + ";\n this warning may eventually become an error"));
}
updateActionInputs(discoveredInputs);
// Generate a fake ".o" file containing the command line needed to generate
// the real object file.
LOG.info("Generating " + outputFile);
// A cc_fake_binary rule generates fake .o files and a fake target file,
// which merely contain instructions on building the real target. We need to
// be careful to use a new set of output file names in the instructions, as
// to not overwrite the fake output files when someone tries to follow the
// instructions. As the real compilation is executed by the test from its
// runfiles directory (where writing is forbidden), we patch the command
// line to write to $TEST_TMPDIR instead.
final String outputPrefix = "$TEST_TMPDIR/";
String argv =
Joiner.on(' ')
.join(
Iterables.transform(
getArgv(outputFile.getExecPath()),
new Function<String, String>() {
@Override
public String apply(String input) {
String result = ShellEscaper.escapeString(input);
// Once -c and -o options are added into action_config, the argument of
// getArgv(outputFile.getExecPath()) won't be used anymore. There will
// always be
// -c <tempOutputFile>, but here it has to be outputFile, so we replace it.
if (input.equals(tempOutputFile.getPathString())) {
result =
outputPrefix
+ ShellEscaper.escapeString(outputFile.getExecPathString());
}
if (input.equals(outputFile.getExecPathString())
|| input.equals(getDotdFile().getSafeExecPath().getPathString())) {
result = outputPrefix + ShellEscaper.escapeString(input);
}
return result;
}
}));
// Write the command needed to build the real .o file to the fake .o file.
// Generate a command to ensure that the output directory exists; otherwise
// the compilation would fail.
try {
// Ensure that the .d file and .o file are siblings, so that the "mkdir" below works for
// both.
Preconditions.checkState(
outputFile
.getExecPath()
.getParentDirectory()
.equals(getDotdFile().getSafeExecPath().getParentDirectory()));
FileSystemUtils.writeContent(
outputFile.getPath(),
ISO_8859_1,
outputFile.getPath().getBaseName()
+ ": "
+ "mkdir -p "
+ outputPrefix
+ "$(dirname "
+ outputFile.getExecPath()
+ ")"
+ " && "
+ argv
+ "\n");
} catch (IOException e) {
throw new ActionExecutionException(
"failed to create fake compile command for rule '"
+ getOwner().getLabel()
+ ": "
+ e.getMessage(),
this,
false);
}
}
