Merge pull request #4 from Dcard/docker-build-patch-protocol

feat(docker-build): Copy patch files

packages/docker-build/package.json

@@ -14,6 +14,7 @@
     "@yarnpkg/core": "^2.2.2",
     "@yarnpkg/fslib": "^2.2.1",
     "@yarnpkg/plugin-pack": "^2.2.0",
+    "@yarnpkg/plugin-patch": "^2.1.1",
     "typescript": "^4.0.2"
   }
 }

packages/docker-build/src/commands/build.ts

@@ -19,6 +19,7 @@ import copyCacheMarkedFiles from '../utils/copyCacheMarkedFiles';
 import generateLockfile from '../utils/generateLockfile';
 import packWorkspace from '../utils/packWorkspace';
 import copyAdditional from '../utils/copyAdditional';
+import copyPatchFiles from '../utils/copyPatchFiles';
 
 export default class DockerBuildCommand extends BaseCommand {
   @Command.String()
@@ -127,6 +128,12 @@ export default class DockerBuildCommand extends BaseCommand {
               report,
             });
 
+            await copyPatchFiles({
+              destination: manifestDir,
+              workspaces: project.workspaces,
+              report,
+            });
+
             await copyCacheMarkedFiles({
               destination: manifestDir,
               project,

packages/docker-build/src/utils/copyPatchFiles.ts

@@ -0,0 +1,56 @@
+import { Report, Workspace } from '@yarnpkg/core';
+import { PortablePath, ppath, xfs } from '@yarnpkg/fslib';
+import { patchUtils } from '@yarnpkg/plugin-patch';
+
+// https://github.com/yarnpkg/berry/blob/d38d573/packages/plugin-patch/sources/patchUtils.ts#L10
+const BUILTIN_REGEXP = /^builtin<([^>]+)>$/;
+
+export default async function copyPatchFiles({
+  destination,
+  workspaces,
+  report,
+}: {
+  destination: PortablePath;
+  workspaces: Workspace[];
+  report: Report;
+}): Promise<void> {
+  const copiedPaths = new Set<string>();
+
+  for (const ws of workspaces) {
+    for (const descriptor of ws.dependencies.values()) {
+      if (!descriptor.range.startsWith('patch:')) continue;
+
+      const { parentLocator, patchPaths } = patchUtils.parseDescriptor(
+        descriptor,
+      );
+
+      for (const path of patchPaths) {
+        // Ignore builtin modules
+        if (BUILTIN_REGEXP.test(path)) continue;
+
+        // TODO: Handle absolute path
+        if (ppath.isAbsolute(path)) continue;
+
+        if (!parentLocator) continue;
+
+        // Get the workspace by parentLocator
+        const parentWorkspace = ws.project.getWorkspaceByLocator(parentLocator);
+
+        // The path relative to the project CWD
+        const relativePath = ppath.join(parentWorkspace.relativeCwd, path);
+
+        // Skip if the path has been copied already
+        if (copiedPaths.has(relativePath)) continue;
+
+        copiedPaths.add(relativePath);
+
+        const src = ppath.join(parentWorkspace.cwd, path);
+        const dest = ppath.join(destination, relativePath);
+
+        report.reportInfo(null, relativePath);
+        await xfs.mkdirpPromise(ppath.dirname(dest));
+        await xfs.copyFilePromise(src, dest);
+      }
+    }
+  }
+}

yarn.lock

@@ -408,6 +408,7 @@ __metadata:
     "@yarnpkg/core": ^2.2.2
     "@yarnpkg/fslib": ^2.2.1
     "@yarnpkg/plugin-pack": ^2.2.0
+    "@yarnpkg/plugin-patch": ^2.1.1
     clipanion: ^2.4.4
     typescript: ^4.0.2
   languageName: unknown