firka/flutter
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More flexibility for defining the locations of assets packaged in an FLX (#4462)

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* Add a map of relative to absolute paths for assets located outside the app's
  source directory
* If a "packages" directory exists, obtain assets from there instead of
  using the packages/ prefix to indicate package map lookup
This commit is contained in:
Jason Simmons 2016-06-08 11:32:30 -07:00
parent d303081e9a
commit 0db04819dc
2 changed files with 25 additions and 6 deletions
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2
packages/flutter_tools/lib/flutter_tools.dart
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@ -13,6 +13,7 @@ Future<int> assembleFlx({
Map<String, dynamic> manifestDescriptor: const <String, dynamic>{},
File snapshotFile: null,
String assetBasePath: flx.defaultAssetBasePath,
Map<String, String> assetPathOverrides: const <String, String>{},
String outputPath: flx.defaultFlxOutputPath,
String privateKeyPath: flx.defaultPrivateKeyPath
}) async {
@ -20,6 +21,7 @@ Future<int> assembleFlx({
manifestDescriptor: manifestDescriptor,
snapshotFile: snapshotFile,
assetBasePath: assetBasePath,
assetPathOverrides: assetPathOverrides,
outputPath: outputPath,
privateKeyPath: privateKeyPath
);

29
packages/flutter_tools/lib/src/flx.dart
View File

@ -129,7 +129,8 @@ List<_Asset> _getMaterialAssets(String fontSet) {
Map<_Asset, List<_Asset>> _parseAssets(
PackageMap packageMap,
Map<String, dynamic> manifestDescriptor,
String assetBase, {
String assetBase,
Map<String, String> assetPathOverrides, {
List<String> excludeDirs: const <String>[]
}) {
Map<_Asset, List<_Asset>> result = <_Asset, List<_Asset>>{};
@ -142,7 +143,7 @@ Map<_Asset, List<_Asset>> _parseAssets(
if (manifestDescriptor.containsKey('assets')) {
for (String asset in manifestDescriptor['assets']) {
_Asset baseAsset = _resolveAsset(packageMap, assetBase, asset);
_Asset baseAsset = _resolveAsset(packageMap, assetBase, assetPathOverrides, asset);
if (!baseAsset.assetFileExists) {
printError('Error: unable to locate asset entry in flutter.yaml: "$asset".');
@ -153,7 +154,7 @@ Map<_Asset, List<_Asset>> _parseAssets(
result[baseAsset] = variants;
// Find asset variants
String assetPath = path.join(baseAsset.base, baseAsset.relativePath);
String assetPath = baseAsset.assetFile.path;
String assetFilename = path.basename(assetPath);
Directory assetDir = new Directory(path.dirname(assetPath));
@ -188,7 +189,7 @@ Map<_Asset, List<_Asset>> _parseAssets(
String asset = font['asset'];
if (asset == null) continue;
_Asset baseAsset = _resolveAsset(packageMap, assetBase, asset);
_Asset baseAsset = _resolveAsset(packageMap, assetBase, assetPathOverrides, asset);
if (!baseAsset.assetFileExists) {
printError('Error: unable to locate asset entry in flutter.yaml: "$asset".');
return null;
@ -202,8 +203,22 @@ Map<_Asset, List<_Asset>> _parseAssets(
return result;
}
_Asset _resolveAsset(PackageMap packageMap, String assetBase, String asset) {
if (asset.startsWith('packages/')) {
_Asset _resolveAsset(
PackageMap packageMap,
String assetBase,
Map<String, String> assetPathOverrides,
String asset
) {
String overridePath = assetPathOverrides[asset];
if (overridePath != null) {
return new _Asset(
base: path.dirname(overridePath),
source: path.basename(overridePath),
relativePath: asset
);
}
if (asset.startsWith('packages/') && !FileSystemEntity.isFileSync(path.join(assetBase, asset))) {
// Convert packages/flutter_gallery_assets/clouds-0.png to clouds-0.png.
String packageKey = asset.substring(9);
String relativeAsset = asset;
@ -374,6 +389,7 @@ Future<int> assemble({
Map<String, dynamic> manifestDescriptor: const <String, dynamic>{},
File snapshotFile,
String assetBasePath: defaultAssetBasePath,
Map<String, String> assetPathOverrides: const <String, String>{},
String outputPath: defaultFlxOutputPath,
String privateKeyPath: defaultPrivateKeyPath,
String workingDirPath: defaultWorkingDirPath,
@ -385,6 +401,7 @@ Future<int> assemble({
new PackageMap(path.join(assetBasePath, '.packages')),
manifestDescriptor,
assetBasePath,
assetPathOverrides,
excludeDirs: <String>[workingDirPath, path.join(assetBasePath, 'build')]
);