feat: add support for deno

__fixtures__/basic-deno/deno.json

@@ -0,0 +1,5 @@
+{
+  "workspace": [
+    "packages/*"
+  ]
+}

__fixtures__/basic-deno/packages/package-one/deno.json

@@ -0,0 +1,5 @@
+{
+  "name": "@scope/package-one",
+  "version": "1.0.0",
+  "exports": "./mod.ts"
+}

__fixtures__/complex-deno/deno.jsonc

@@ -0,0 +1,24 @@
+{
+  "workspace": [
+    "packages/*"
+  ],
+  "imports": {
+    "@/": "./",
+    "class-variance-authority": "npm:class-variance-authority@^0.7.1",
+    "clsx": "npm:clsx@^2.1.1",
+    "cmdk": "https://esm.sh/[email protected]?alias=react:preact/compat&external=preact,@radix-ui/react-dialog&target=es2022",
+    "fresh": "jsr:@fresh/core@^2.0.0-beta.3",
+    "@fresh/plugin-vite": "jsr:@fresh/plugin-vite@^0.9.11",
+    "lucide-preact": "npm:lucide-preact@^0.539.0",
+    "postcss": "npm:postcss@^8.5.6",
+    "preact": "npm:preact@^10.27.1",
+    "@preact/signals": "npm:@preact/signals@^2.3.1",
+    "/*": "TODO: cleanup",
+    "@radix-ui/react-accordion": "https://esm.sh/@radix-ui/[email protected]?alias=react:preact/compat&external=preact,@radix-ui/react-collapsible,@radix-ui/react-collection,@radix-ui/react-compose-refs,@radix-ui/react-context,@radix-ui/react-direction,@radix-ui/react-id,@radix-ui/react-primitive,@radix-ui/react-use-controllable-state&target=es2022",
+    "tailwind-merge": "npm:tailwind-merge@^3.3.1",
+    "tw-animate-css": "npm:tw-animate-css@^1.3.7",
+    "vite": "npm:vite@^7.1.4",
+    "tailwindcss": "npm:tailwindcss@^4.1.12",
+    "@tailwindcss/vite": "npm:@tailwindcss/vite@^4.1.12"
+  }
+}

__fixtures__/complex-deno/packages/package-one/deno.json

@@ -0,0 +1,5 @@
+{
+  "name": "@scope/package-one",
+  "version": "1.0.0",
+  "exports": "./mod.ts"
+}

__fixtures__/complex-deno/packages/package-three/deno.jsonc

@@ -0,0 +1,35 @@
+{
+  "name": "@scope/package-three",
+  "version": "1.0.0",
+  "exports": "./mod.ts",
+  // "broken:", "this should not be here",
+  "exclude": [
+    "**/_fresh/*"
+  ],
+  "compilerOptions": {
+    "lib": [
+      "dom",
+      "dom.asynciterable",
+      "dom.iterable",
+      "deno.ns"
+    ],
+    "jsx": "precompile",
+    "jsxImportSource": "preact",
+    "jsxPrecompileSkipElements": [
+      "a",
+      "img",
+      "source",
+      "body",
+      "html",
+      "head",
+      "title",
+      "meta",
+      "script",
+      "link",
+      "style",
+      "base",
+      "noscript",
+      "template"
+    ]
+  }
+}

__fixtures__/complex-deno/packages/package-two/deno.json

@@ -0,0 +1,21 @@
+{
+  "name": "@scope/package-two",
+  "version": "1.0.0",
+  "exports": "./mod.ts",
+  "tasks": {
+    "check": "deno fmt --check . && deno lint . && deno check",
+    "dev": "vite",
+    "build": "vite build",
+    "start": "deno serve -A _fresh/server.js",
+    "update": "deno run -A -r jsr:@fresh/update .",
+    "check-deps": "deno run -A jsr:@check/deps --allow-unused"
+  },
+  "lint": {
+    "rules": {
+      "tags": [
+        "fresh",
+        "recommended"
+      ]
+    }
+  }
+}

__fixtures__/deno-external-mismatch/deno.json

@@ -0,0 +1,5 @@
+{
+  "workspace": [
+    "packages/*"
+  ]
+}

__fixtures__/deno-external-mismatch/packages/package-one/deno.json

@@ -0,0 +1,7 @@
+{
+  "name": "@scope/package-one",
+  "version": "1.0.0",
+  "imports": {
+    "@oak/oak": "jsr:@oak/oak@^14.2.0"
+  }
+}

__fixtures__/deno-external-mismatch/packages/package-two/deno.json

@@ -0,0 +1,7 @@
+{
+  "name": "@scope/package-two",
+  "version": "1.0.0",
+  "imports": {
+    "@oak/oak": "jsr:@oak/oak@^13.0.0"
+  }
+}

__fixtures__/deno-internal-mismatch/deno.json

@@ -0,0 +1,5 @@
+{
+  "workspace": [
+    "packages/*"
+  ]
+}

__fixtures__/deno-internal-mismatch/packages/package-one/deno.json

@@ -0,0 +1,7 @@
+{
+  "name": "@scope/package-one",
+  "version": "1.0.0",
+  "imports": {
+    "@scope/package-two": "jsr:@scope/package-two@^2.0.0"
+  }
+}

__fixtures__/deno-internal-mismatch/packages/package-two/deno.json

@@ -0,0 +1,4 @@
+{
+  "name": "@scope/package-two",
+  "version": "1.0.0"
+}

__fixtures__/deno-invalid-package-name/deno.json

@@ -0,0 +1,5 @@
+{
+  "workspace": [
+    "packages/*"
+  ]
+}

__fixtures__/deno-invalid-package-name/packages/package-one/deno.json

@@ -0,0 +1,4 @@
+{
+  "name": "package-one",
+  "version": "1.0.0"
+}

__fixtures__/deno-unsorted-dependencies/deno.json

@@ -0,0 +1,5 @@
+{
+  "workspace": [
+    "packages/*"
+  ]
+}

__fixtures__/deno-unsorted-dependencies/packages/package-one/deno.json

@@ -0,0 +1,8 @@
+{
+  "name": "@scope/package-one",
+  "version": "1.0.0",
+  "imports": {
+    "zod": "npm:zod@^3.23.8",
+    "oak": "jsr:@oak/oak@^14.2.0"
+  }
+}

packages/cli/package.json

@@ -18,6 +18,7 @@
   "dependencies": {
     "@manypkg/get-packages": "^3.1.0",
     "detect-indent": "^7.0.1",
+    "jsonc-parser": "^3.3.1",
     "normalize-path": "^3.0.0",
     "p-limit": "^6.2.0",
     "package-json": "^10.0.1",

packages/cli/src/__fixtures__/deno-fix-e2e/deno.jsonc

@@ -0,0 +1,10 @@
+// This is the root config file.
+{
+  "workspace": [
+    "packages/*"
+  ],
+  "imports": {
+    // We should use a consistent version of oak.
+    "@oak/oak": "jsr:@oak/oak@^14.2.0"
+  }
+}

packages/cli/src/__fixtures__/deno-fix-e2e/packages/package-one/deno.jsonc

@@ -0,0 +1,6 @@
+// Package one config.
+{
+  "name": "@scope/package-one",
+  "version": "1.0.0"
+  // No dependencies here.
+}

packages/cli/src/__fixtures__/deno-fix-e2e/packages/package-two/deno.jsonc

@@ -0,0 +1,9 @@
+// Package two has a mismatched dependency.
+{
+  "name": "@scope/package-two",
+  "version": "1.0.0",
+  "imports": {
+    // This should be fixed to ^14.2.0
+    "@oak/oak": "jsr:@oak/oak@^13.0.0"
+  }
+}

packages/cli/src/__tests__/fix.deno.e2e.test.ts

@@ -0,0 +1,41 @@
+import { describe, test, expect } from "vitest";
+import fixturez from "fixturez";
+import path from "node:path";
+import fs from "node:fs/promises";
+import { exec } from "tinyexec";
+import { parse } from "jsonc-parser";
+
+const f = fixturez(__dirname);
+
+function executeBin(path: string, command: string, ...args: string[]) {
+  return exec("node", [require.resolve("../../bin.js"), command, ...args], {
+    nodeOptions: {
+      cwd: path,
+      env: {
+        ...process.env,
+        NODE_OPTIONS: "--experimental-strip-types",
+      },
+    },
+  });
+}
+
+describe("deno fix e2e", () => {
+  test("should fix a mismatched dependency in a deno.jsonc file", async () => {
+    const fixtureDir = f.copy("deno-fix-e2e");
+
+    await executeBin(fixtureDir, "fix");
+
+    const fixedFileContent = await fs.readFile(
+      path.join(fixtureDir, "packages/package-two/deno.jsonc"),
+      "utf-8"
+    );
+
+    const fixedJson = parse(fixedFileContent);
+    expect(fixedJson.imports["@oak/oak"]).toBe("jsr:@oak/oak@^14.2.0");
+
+    // Also check that comments are gone, since that's the current implementation
+    expect(fixedFileContent).not.toContain(
+      "// This should be fixed to ^14.2.0"
+    );
+  }, 30000);
+});

packages/cli/src/checks/EXTERNAL_MISMATCH.ts

@@ -3,53 +3,103 @@ import {
   getMostCommonRangeMap,
   NORMAL_DEPENDENCY_TYPES,
 } from "./utils.ts";
-import type { Package } from "@manypkg/get-packages";
+import {
+  isDenoPackage,
+  isNodePackage,
+  type Package,
+} from "@manypkg/get-packages";
 import { validRange } from "semver";
 
+const dependencyRegexp =
+  /^(?<protocol>jsr:|npm:|https:|http:)(?:\/\/|\/)?(?<name>@?[^@\s]+)@?(?<version>[^?\s/]+)?/;
+
 type ErrorType = {
   type: "EXTERNAL_MISMATCH";
-  workspace: Package;
+  workspace: Package<any>;
   dependencyName: string;
   dependencyRange: string;
   mostCommonDependencyRange: string;
+  dependencyAlias?: string;
 };
 
 export default makeCheck<ErrorType>({
   validate: (workspace, allWorkspace) => {
     let errors: ErrorType[] = [];
     let mostCommonRangeMap = getMostCommonRangeMap(allWorkspace);
-    for (let depType of NORMAL_DEPENDENCY_TYPES) {
-      let deps = workspace.packageJson[depType];
 
-      if (deps) {
-        for (let depName in deps) {
-          let range = deps[depName];
-          let mostCommonRange = mostCommonRangeMap.get(depName);
+    if (isDenoPackage(workspace)) {
+      if (workspace.dependencies) {
+        for (let depAlias in workspace.dependencies) {
+          let dep = workspace.dependencies[depAlias];
+          let mostCommonRange = mostCommonRangeMap.get(dep.name);
           if (
             mostCommonRange !== undefined &&
-            mostCommonRange !== range &&
-            validRange(range)
+            dep.version &&
+            mostCommonRange !== dep.version &&
+            validRange(dep.version)
           ) {
             errors.push({
               type: "EXTERNAL_MISMATCH",
               workspace,
-              dependencyName: depName,
-              dependencyRange: range,
+              dependencyName: dep.name,
+              dependencyRange: dep.version,
               mostCommonDependencyRange: mostCommonRange,
+              dependencyAlias: depAlias,
             });
           }
         }
       }
+    } else if (isNodePackage(workspace)) {
+      for (let depType of NORMAL_DEPENDENCY_TYPES) {
+        let deps = workspace.packageJson[depType];
+
+        if (deps) {
+          for (let depName in deps) {
+            let range = deps[depName];
+            let mostCommonRange = mostCommonRangeMap.get(depName);
+            if (
+              mostCommonRange !== undefined &&
+              mostCommonRange !== range &&
+              validRange(range)
+            ) {
+              errors.push({
+                type: "EXTERNAL_MISMATCH",
+                workspace,
+                dependencyName: depName,
+                dependencyRange: range,
+                mostCommonDependencyRange: mostCommonRange,
+              });
+            }
+          }
+        }
+      }
     }
     return errors;
   },
   fix: (error) => {
-    for (let depType of NORMAL_DEPENDENCY_TYPES) {
-      let deps = error.workspace.packageJson[depType];
-      if (deps && deps[error.dependencyName]) {
-        deps[error.dependencyName] = error.mostCommonDependencyRange;
+    if (isDenoPackage(error.workspace) && error.dependencyAlias) {
+      const imports = error.workspace.packageJson.imports;
+      if (imports && imports[error.dependencyAlias]) {
+        const originalSpecifier = imports[error.dependencyAlias];
+        const match = originalSpecifier.match(dependencyRegexp);
+        if (match && match.groups) {
+          const { protocol, name } = match.groups;
+          // The name can sometimes include the @ symbol, which we want to keep, but not if it's a trailing one from the version separator
+          const cleanName = name.endsWith("@") ? name.slice(0, -1) : name;
+          imports[error.dependencyAlias] =
+            `${protocol}${cleanName}@${error.mostCommonDependencyRange}`;
+        }
+      }
+    } else if (isNodePackage(error.workspace)) {
+      for (let depType of NORMAL_DEPENDENCY_TYPES) {
+        let deps = error.workspace.packageJson[depType];
+        if (deps && deps[error.dependencyName]) {
+          deps[error.dependencyName] = error.mostCommonDependencyRange;
+        }
       }
     }
+    // Deno doesn't have an install step, but this signals that a change was made.
+    // The install function itself is now a no-op for Deno.
     return { requiresInstall: true };
   },
   print: (error) =>