use of com.google.devtools.build.lib.bazel.rules.android.ndkcrosstools.AndroidNdkCrosstools.NdkCrosstoolsException in project bazel by bazelbuild.
the class AndroidNdkRepositoryFunction method fetch.
@Override
public RepositoryDirectoryValue.Builder fetch(Rule rule, Path outputDirectory, BlazeDirectories directories, Environment env, Map<String, String> markerData) throws InterruptedException, RepositoryFunctionException {
Map<String, String> environ = declareEnvironmentDependencies(markerData, env, PATH_ENV_VAR_AS_LIST);
if (environ == null) {
return null;
}
prepareLocalRepositorySymlinkTree(rule, outputDirectory);
WorkspaceAttributeMapper attributes = WorkspaceAttributeMapper.of(rule);
PathFragment pathFragment;
if (attributes.isAttributeValueExplicitlySpecified("path")) {
pathFragment = getTargetPath(rule, directories.getWorkspace());
} else if (environ.get(PATH_ENV_VAR) != null) {
pathFragment = getAndroidNdkHomeEnvironmentVar(directories.getWorkspace(), environ);
} else {
throw new RepositoryFunctionException(new EvalException(rule.getLocation(), "Either the path attribute of android_ndk_repository or the ANDROID_NDK_HOME " + " environment variable must be set."), Transience.PERSISTENT);
}
Path ndkSymlinkTreeDirectory = outputDirectory.getRelative("ndk");
try {
ndkSymlinkTreeDirectory.createDirectory();
} catch (IOException e) {
throw new RepositoryFunctionException(e, Transience.TRANSIENT);
}
Path ndkHome = directories.getOutputBase().getFileSystem().getPath(pathFragment);
if (!symlinkLocalRepositoryContents(ndkSymlinkTreeDirectory, ndkHome)) {
return null;
}
String ruleName = rule.getName();
// We need to fetch the NDK release info from the actual home to avoid cycle in the
// dependency graph (the path relative to the repository root depends on the
// repository being fetched).
NdkRelease ndkRelease = getNdkRelease(ndkHome, env);
if (env.valuesMissing()) {
return null;
}
String apiLevelString;
if (attributes.isAttributeValueExplicitlySpecified("api_level")) {
try {
apiLevelString = attributes.get("api_level", Type.INTEGER).toString();
} catch (EvalException e) {
throw new RepositoryFunctionException(e, Transience.PERSISTENT);
}
} else {
DirectoryListingValue platformsDirectoryValue = AndroidRepositoryUtils.getDirectoryListing(ndkHome, PLATFORMS_DIR, env);
if (platformsDirectoryValue == null) {
return null;
}
ImmutableSortedSet<Integer> apiLevels = AndroidRepositoryUtils.getApiLevels(platformsDirectoryValue.getDirents());
if (apiLevels.isEmpty()) {
// themselves.
throw new RepositoryFunctionException(new EvalException(rule.getLocation(), "android_ndk_repository requires that at least one Android platform is present in " + "the Android NDK platforms directory. Please ensure that the path attribute " + "or the ANDROID_NDK_HOME environment variable points to a valid NDK."), Transience.PERSISTENT);
}
apiLevelString = apiLevels.first().toString();
}
// NDK minor revisions should be backwards compatible within a major revision, the crosstools
// we generate don't care about the minor revision.
NdkMajorRevision ndkMajorRevision;
if (!ndkRelease.isValid) {
String warningMessage = String.format("The revision of the Android NDK referenced by android_ndk_repository rule '%s' " + "could not be determined (the revision string found is '%s'). Defaulting to " + "revision %s.", ruleName, ndkRelease.rawRelease, AndroidNdkCrosstools.LATEST_KNOWN_REVISION.getKey());
env.getListener().handle(Event.warn(warningMessage));
ndkMajorRevision = AndroidNdkCrosstools.LATEST_KNOWN_REVISION.getValue();
} else if (!AndroidNdkCrosstools.isKnownNDKRevision(ndkRelease)) {
String warningMessage = String.format("The major revision of the Android NDK referenced by android_ndk_repository rule " + "'%s' is %s. The major revisions supported by Bazel are %s. Defaulting to " + "revision %s.", ruleName, ndkRelease.majorRevision, AndroidNdkCrosstools.KNOWN_NDK_MAJOR_REVISIONS.keySet(), AndroidNdkCrosstools.LATEST_KNOWN_REVISION.getKey());
env.getListener().handle(Event.warn(warningMessage));
ndkMajorRevision = AndroidNdkCrosstools.LATEST_KNOWN_REVISION.getValue();
} else {
ndkMajorRevision = AndroidNdkCrosstools.KNOWN_NDK_MAJOR_REVISIONS.get(ndkRelease.majorRevision);
}
ApiLevel apiLevel = ndkMajorRevision.apiLevel(env.getListener(), ruleName, apiLevelString);
ImmutableList.Builder<CrosstoolStlPair> crosstoolsAndStls = ImmutableList.builder();
try {
String hostPlatform = AndroidNdkCrosstools.getHostPlatform(ndkRelease);
NdkPaths ndkPaths = new NdkPaths(ruleName, hostPlatform, apiLevel);
for (StlImpl stlImpl : StlImpls.get(ndkPaths)) {
CrosstoolRelease crosstoolRelease = ndkMajorRevision.crosstoolRelease(ndkPaths, stlImpl, hostPlatform);
crosstoolsAndStls.add(new CrosstoolStlPair(crosstoolRelease, stlImpl));
}
} catch (NdkCrosstoolsException e) {
throw new RepositoryFunctionException(new IOException(e), Transience.PERSISTENT);
}
String buildFile = createBuildFile(ruleName, crosstoolsAndStls.build());
writeBuildFile(outputDirectory, buildFile);
return RepositoryDirectoryValue.builder().setPath(outputDirectory);
}
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