chore: add list command plugin for yarn to fix vsce issue (#36)

.yarn/plugins/plugin-list.cjs

@@ -0,0 +1,126 @@
+module.exports = {
+  name: "plugin-list",
+  factory: (require) => {
+    const fs = require("fs");
+    const { BaseCommand } = require("@yarnpkg/cli");
+    const { Command, Option } = require("clipanion");
+    const { parseSyml } = require("@yarnpkg/parsers");
+
+    class ListCommand extends BaseCommand {
+      static paths = [["list"]];
+
+      static usage = Command.Usage({
+        description: "Lists installed packages.",
+      });
+
+      prod = Option.Boolean("--prod", false);
+      json = Option.Boolean("--json", false);
+
+      async execute() {
+        if (!this.prod || !this.json) {
+          throw new Error(
+            "This command can only be used with the --prod and --json " +
+              "args to match the behavior required by VSCE. See: " +
+              "https://github.com/microsoft/vscode-vsce/blob/main/src/npm.ts",
+          );
+        }
+
+        const packageJsonContents = fs.readFileSync("package.json", "utf-8");
+        const { dependencies = {}, resolutions = {} } =
+          JSON.parse(packageJsonContents);
+
+        const lockContents = fs.readFileSync("yarn.lock", "utf-8");
+        const resolved = parseSyml(lockContents);
+
+        const trees = [];
+
+        function addDependency(packageName, versionRange) {
+          const packageInfo = lookup(
+            resolved,
+            getLockFileKey(packageName, versionRange, resolutions),
+          );
+          if (!packageInfo) {
+            throw new Error(
+              `Cannot resolve "${packageName}" with version range "${versionRange}"`,
+            );
+          }
+
+          const { version, dependencies } = packageInfo;
+          const name = `${packageName}@${version}`;
+          if (trees.find((tree) => tree.name === name)) {
+            return; // Dependency already added as part of another tree.
+          }
+
+          if (dependencies) {
+            const children = Object.entries(dependencies).map(
+              ([name, range]) => ({ name: `${name}@${range}` }),
+            );
+            trees.push({ name, children });
+
+            addDependencies(dependencies);
+          } else {
+            trees.push({ name, children: [] });
+          }
+        }
+
+        function addDependencies(dependencies) {
+          for (const [packageName, versionRange] of Object.entries(
+            dependencies,
+          )) {
+            addDependency(packageName, versionRange);
+          }
+        }
+
+        addDependencies(dependencies);
+
+        const output = {
+          type: "tree",
+          data: { type: "list", trees },
+        };
+
+        this.context.stdout.write(JSON.stringify(output));
+      }
+    }
+
+    return {
+      commands: [ListCommand],
+    };
+  },
+};
+
+function getLockFileKey(packageName, versionSpecifier, resolutions) {
+  // If the package name is in the resolutions field, use the version from there.
+  const resolvedVersionSpecifier = resolutions[packageName] ?? versionSpecifier;
+
+  // If the version field contains a URL, don't attempt to use the NPM registry
+  return resolvedVersionSpecifier.includes(":")
+    ? `${packageName}@${resolvedVersionSpecifier}`
+    : `${packageName}@npm:${resolvedVersionSpecifier}`;
+}
+
+/**
+ * @param resolved All the resolved dependencies as found in the lock file.
+ * @param dependencyKey Key of the dependency to look up. Can be created using
+ *                      `getLockFileKey()`.
+ */
+function lookup(resolved, dependencyKey) {
+  const packageInfo = resolved[dependencyKey];
+  if (packageInfo) {
+    return packageInfo;
+  }
+
+  // Fall back to slower iteration-based lookup for combined keys.
+  for (const [key, packageInfo] of Object.entries(resolved)) {
+    // Resolving ranges: "@babel/runtime@npm:^7.1.2, @babel/runtime@npm:^7.12.13, @babel/runtime@npm:^7.12.5"
+    const versionRanges = key.split(",");
+    if (versionRanges.some((key) => key.trim() === dependencyKey)) {
+      return packageInfo;
+    }
+
+    // Resolving yarn link resolutions: "@kaoto/kaoto-ui@portal:/home/rmartinez/repos/kaoto-ui::locator=vscode-kaoto%40workspace%3A."
+    const yarnLinkResolution = key.split("::")[0];
+    if (yarnLinkResolution === dependencyKey) {
+      return packageInfo;
+    }
+  }
+}

.yarnrc.yml

@@ -1,3 +1,8 @@
 nodeLinker: node-modules
 
+plugins:
+  - checksum: 113fae572c391623e3032d2be1c3eac64ca8d00cfb7fa62a4dab433b87bb66864a577acad63c0a16895869930a41587f409d9de2de69fd1ad539dee6ea9c6bdf
+    path: .yarn/plugins/plugin-list.cjs
+    spec: "https://github.com/arendjr/yarn-plugin-list/releases/latest/download/yarn-plugin-list.js"
+
 yarnPath: .yarn/releases/yarn-4.6.0.cjs