Examples with NdkPaths com.google.devtools.build.lib.bazel.rules.android.ndkcrosstools.NdkPaths used on opensource projects

Example 1 with NdkPaths

use of com.google.devtools.build.lib.bazel.rules.android.ndkcrosstools.NdkPaths 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);
}