Examples with PackageIdentifier com.google.devtools.build.lib.cmdline.PackageIdentifier used on opensource projects

Example 21 with PackageIdentifier

use of com.google.devtools.build.lib.cmdline.PackageIdentifier in project bazel by bazelbuild.

the class SkylarkImportLookupFunction method labelsForAbsoluteImports.

/**
   * Computes the set of Labels corresponding to a collection of PathFragments representing absolute
   * import paths.
   *
   * @return a map from the computed {@link Label}s to the corresponding {@link PathFragment}s;
   *     {@code null} if any Skyframe dependencies are unavailable.
   * @throws SkylarkImportFailedException
   */
@Nullable
static ImmutableMap<PathFragment, Label> labelsForAbsoluteImports(ImmutableSet<PathFragment> pathsToLookup, Environment env) throws SkylarkImportFailedException, InterruptedException {
    // Import PathFragments are absolute, so there is a 1-1 mapping from corresponding Labels.
    ImmutableMap.Builder<PathFragment, Label> outputMap = new ImmutableMap.Builder<>();
    // The SkyKey here represents the directory containing an import PathFragment, hence there
    // can in general be multiple imports per lookup.
    Multimap<SkyKey, PathFragment> lookupMap = LinkedHashMultimap.create();
    for (PathFragment importPath : pathsToLookup) {
        PathFragment relativeImportPath = importPath.toRelative();
        PackageIdentifier pkgToLookUp = PackageIdentifier.createInMainRepo(relativeImportPath.getParentDirectory());
        lookupMap.put(ContainingPackageLookupValue.key(pkgToLookUp), importPath);
    }
    // Attempt to find a package for every directory containing an import.
    Map<SkyKey, ValueOrException2<BuildFileNotFoundException, InconsistentFilesystemException>> lookupResults = env.getValuesOrThrow(lookupMap.keySet(), BuildFileNotFoundException.class, InconsistentFilesystemException.class);
    if (env.valuesMissing()) {
        return null;
    }
    try {
        // Process lookup results.
        for (Entry<SkyKey, ValueOrException2<BuildFileNotFoundException, InconsistentFilesystemException>> entry : lookupResults.entrySet()) {
            ContainingPackageLookupValue lookupValue = (ContainingPackageLookupValue) entry.getValue().get();
            if (!lookupValue.hasContainingPackage()) {
                // Although multiple imports may be in the same package-less directory, we only
                // report an error for the first one.
                PackageIdentifier lookupKey = ((PackageIdentifier) entry.getKey().argument());
                PathFragment importFile = lookupKey.getPackageFragment();
                throw SkylarkImportFailedException.noBuildFile(importFile);
            }
            PackageIdentifier pkgIdForImport = lookupValue.getContainingPackageName();
            PathFragment containingPkgPath = pkgIdForImport.getPackageFragment();
            for (PathFragment importPath : lookupMap.get(entry.getKey())) {
                PathFragment relativeImportPath = importPath.toRelative();
                String targetNameForImport = relativeImportPath.relativeTo(containingPkgPath).toString();
                try {
                    outputMap.put(importPath, Label.create(pkgIdForImport, targetNameForImport));
                } catch (LabelSyntaxException e) {
                    // simple path.
                    throw new SkylarkImportFailedException(e);
                }
            }
        }
    } catch (BuildFileNotFoundException e) {
        // Thrown when there are IO errors looking for BUILD files.
        throw new SkylarkImportFailedException(e);
    } catch (InconsistentFilesystemException e) {
        throw new SkylarkImportFailedException(e);
    }
    return outputMap.build();
}

Example 22 with PackageIdentifier

use of com.google.devtools.build.lib.cmdline.PackageIdentifier in project bazel by bazelbuild.

the class SkylarkModuleCycleReporter method maybeReportCycle.

@Override
public boolean maybeReportCycle(SkyKey topLevelKey, CycleInfo cycleInfo, boolean alreadyReported, ExtendedEventHandler eventHandler) {
    ImmutableList<SkyKey> pathToCycle = cycleInfo.getPathToCycle();
    ImmutableList<SkyKey> cycle = cycleInfo.getCycle();
    if (pathToCycle.isEmpty()) {
        return false;
    }
    SkyKey lastPathElement = pathToCycle.get(pathToCycle.size() - 1);
    if (alreadyReported) {
        return true;
    } else if (Iterables.all(cycle, IS_SKYLARK_MODULE_SKY_KEY) && // The last element before the cycle has to be a PackageFunction or SkylarkModule.
    (IS_PACKAGE_SKY_KEY.apply(lastPathElement) || IS_SKYLARK_MODULE_SKY_KEY.apply(lastPathElement))) {
        Function printer = new Function<SkyKey, String>() {

            @Override
            public String apply(SkyKey input) {
                if (input.argument() instanceof SkylarkImportLookupValue.SkylarkImportLookupKey) {
                    return ((SkylarkImportLookupValue.SkylarkImportLookupKey) input.argument()).importLabel.toString();
                } else if (input.argument() instanceof PackageIdentifier) {
                    return ((PackageIdentifier) input.argument()) + "/BUILD";
                } else {
                    throw new UnsupportedOperationException();
                }
            }
        };
        StringBuilder cycleMessage = new StringBuilder().append("cycle detected in extension files: ").append("\n    ").append(printer.apply(lastPathElement));
        AbstractLabelCycleReporter.printCycle(cycleInfo.getCycle(), cycleMessage, printer);
        // TODO(bazel-team): it would be nice to pass the Location of the load Statement in the
        // BUILD file.
        eventHandler.handle(Event.error(null, cycleMessage.toString()));
        return true;
    } else if (Iterables.any(cycle, IS_PACKAGE_LOOKUP) && Iterables.any(cycle, IS_WORKSPACE_FILE) && (IS_REPOSITORY_DIRECTORY.apply(lastPathElement) || IS_PACKAGE_SKY_KEY.apply(lastPathElement) || IS_EXTERNAL_PACKAGE.apply(lastPathElement) || IS_LOCAL_REPOSITORY_LOOKUP.apply(lastPathElement))) {
        // We have a cycle in the workspace file, report as such.
        Label fileLabel = (Label) Iterables.getLast(Iterables.filter(cycle, IS_AST_FILE_LOOKUP)).argument();
        String repositoryName = fileLabel.getPackageIdentifier().getRepository().strippedName();
        eventHandler.handle(Event.error(null, "Failed to load Skylark extension '" + fileLabel.toString() + "'.\n" + "It usually happens when the repository is not defined prior to being used.\n" + "Maybe repository '" + repositoryName + "' was defined later in your WORKSPACE file?"));
        return true;
    }
    return false;
}

Example 23 with PackageIdentifier

use of com.google.devtools.build.lib.cmdline.PackageIdentifier in project bazel by bazelbuild.

the class TargetMarkerFunction method computeTargetMarkerValue.

@Nullable
static TargetMarkerValue computeTargetMarkerValue(SkyKey key, Environment env) throws NoSuchTargetException, NoSuchPackageException, InterruptedException {
    Label label = (Label) key.argument();
    PathFragment pkgForLabel = label.getPackageFragment();
    if (label.getName().contains("/")) {
        // This target is in a subdirectory, therefore it could potentially be invalidated by
        // a new BUILD file appearing in the hierarchy.
        PathFragment containingDirectory = label.toPathFragment().getParentDirectory();
        ContainingPackageLookupValue containingPackageLookupValue;
        try {
            PackageIdentifier newPkgId = PackageIdentifier.create(label.getPackageIdentifier().getRepository(), containingDirectory);
            containingPackageLookupValue = (ContainingPackageLookupValue) env.getValueOrThrow(ContainingPackageLookupValue.key(newPkgId), BuildFileNotFoundException.class, InconsistentFilesystemException.class);
        } catch (InconsistentFilesystemException e) {
            throw new NoSuchTargetException(label, e.getMessage());
        }
        if (containingPackageLookupValue == null) {
            return null;
        }
        if (!containingPackageLookupValue.hasContainingPackage()) {
            // trying to build the target for label 'a:b/foo'.
            throw new BuildFileNotFoundException(label.getPackageIdentifier(), "BUILD file not found on package path for '" + pkgForLabel.getPathString() + "'");
        }
        if (!containingPackageLookupValue.getContainingPackageName().equals(label.getPackageIdentifier())) {
            throw new NoSuchTargetException(label, String.format("Label '%s' crosses boundary of subpackage '%s'", label, containingPackageLookupValue.getContainingPackageName()));
        }
    }
    SkyKey pkgSkyKey = PackageValue.key(label.getPackageIdentifier());
    PackageValue value = (PackageValue) env.getValueOrThrow(pkgSkyKey, NoSuchPackageException.class);
    if (value == null) {
        return null;
    }
    Package pkg = value.getPackage();
    Target target = pkg.getTarget(label.getName());
    if (pkg.containsErrors()) {
        // if one of its targets was in error).
        throw new NoSuchTargetException(target);
    }
    return TargetMarkerValue.TARGET_MARKER_INSTANCE;
}

Example 24 with PackageIdentifier

use of com.google.devtools.build.lib.cmdline.PackageIdentifier in project bazel by bazelbuild.

the class SymlinkForestTest method testRemotePackage.

@Test
public void testRemotePackage() throws Exception {
    Path outputBase = fileSystem.getPath("/ob");
    Path rootY = outputBase.getRelative(Label.EXTERNAL_PATH_PREFIX).getRelative("y");
    Path rootZ = outputBase.getRelative(Label.EXTERNAL_PATH_PREFIX).getRelative("z");
    Path rootW = outputBase.getRelative(Label.EXTERNAL_PATH_PREFIX).getRelative("w");
    createDirectoryAndParents(rootY);
    FileSystemUtils.createEmptyFile(rootY.getRelative("file"));
    ImmutableMap<PackageIdentifier, Path> packageRootMap = ImmutableMap.<PackageIdentifier, Path>builder().put(createPkg(outputBase, "y", "w"), outputBase).put(createPkg(outputBase, "z", ""), outputBase).put(createPkg(outputBase, "z", "a/b/c"), outputBase).put(createPkg(outputBase, "w", ""), outputBase).build();
    new SymlinkForest(packageRootMap, linkRoot, TestConstants.PRODUCT_NAME, "wsname").plantSymlinkForest();
    assertFalse(linkRoot.getRelative(Label.EXTERNAL_PATH_PREFIX + "/y/file").exists());
    assertLinksTo(linkRoot.getRelative(Label.EXTERNAL_PATH_PREFIX + "/y/w"), rootY.getRelative("w"));
    assertLinksTo(linkRoot.getRelative(Label.EXTERNAL_PATH_PREFIX + "/z/file"), rootZ.getRelative("file"));
    assertLinksTo(linkRoot.getRelative(Label.EXTERNAL_PATH_PREFIX + "/z/a"), rootZ.getRelative("a"));
    assertLinksTo(linkRoot.getRelative(Label.EXTERNAL_PATH_PREFIX + "/w/file"), rootW.getRelative("file"));
}

Example 25 with PackageIdentifier

use of com.google.devtools.build.lib.cmdline.PackageIdentifier in project bazel by bazelbuild.

the class SymlinkForestTest method testExternalPackage.

@Test
public void testExternalPackage() throws Exception {
    Path root = fileSystem.getPath("/src");
    ImmutableMap<PackageIdentifier, Path> packageRootMap = ImmutableMap.<PackageIdentifier, Path>builder().put(Label.EXTERNAL_PACKAGE_IDENTIFIER, root).build();
    new SymlinkForest(packageRootMap, linkRoot, TestConstants.PRODUCT_NAME, "wsname").plantSymlinkForest();
    assertThat(linkRoot.getRelative(Label.EXTERNAL_PATH_PREFIX).exists()).isFalse();
}