Install gnupg automatically with brew in darwin (#17)

Fixes #16

.github/workflows/test.yml

@@ -36,9 +36,6 @@ jobs:
         if: (! startsWith(github.ref, 'v'))
         run: npm install --production
 
-      - run: brew install gnupg
-        if: matrix.os == 'macOS-latest'
-
       - name: Install D compiler
         uses: ./
         with:

lib/gpg.js

@@ -42,3 +42,13 @@ function verify(file_path, sig_url) {
     });
 }
 exports.verify = verify;
+function install() {
+    return __awaiter(this, void 0, void 0, function* () {
+        // other platforms have gpg pre-installed
+        if (process.platform == "darwin") {
+            const brew_process = promisify_child_process_1.spawn('brew', ['install', 'gnupg'], {});
+            yield brew_process;
+        }
+    });
+}
+exports.install = install;

lib/main.js

@@ -39,6 +39,7 @@ function run() {
                 const archive = yield tc.downloadTool(descr.url);
                 if (descr.sig) {
                     console.log("Verifying the download with GPG");
+                    yield gpg.install();
                     yield gpg.verify(archive, descr.sig);
                 }
                 const dc_path = yield extract(descr.url, archive);

src/gpg.ts

@@ -27,3 +27,11 @@ export async function verify(file_path: string, sig_url: string) {
     // will throw for non-0 exit status
     await gpg_process;    
 }
+
+export async function install() {
+    // other platforms have gpg pre-installed
+    if (process.platform == "darwin") {
+        const brew_process = <any> spawn('brew', [ 'install', 'gnupg' ], {});
+        await brew_process;
+    }
+}

src/main.ts

@@ -29,6 +29,7 @@ async function run() {
             if (descr.sig)
             {
                 console.log("Verifying the download with GPG");
+                await gpg.install();
                 await gpg.verify(archive, descr.sig);
             }
             const dc_path = await extract(descr.url, archive);