feat(install): prefer yarn, and install it if not there

Agoric · Nov 2, 2019 · c8add72 · c8add72
1 parent ad66d97
commit c8add72
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Showing 3 changed files with 3,122 additions and 12 deletions.
diff --git a/lib/install.js b/lib/install.js
@@ -10,25 +10,26 @@ export default async function installMain(progname, rawArgs, priv) {
     _: args,
   } = parseArgs(rawArgs);
 
-  let uiPackager = 'npm';
-  try {
-    await fs.stat('ui/yarn.lock');
-    uiPackager = 'yarn';
-  } catch (e) {}
-
   const pspawn = (...args) => new Promise((resolve, reject) => {
     const cp = spawn(...args);
     cp.on('exit', resolve);
     cp.on('error', () => resolve(-1));
   });
-  const ret = await pspawn('nogo', ['version']);
 
-  const goCmd = ret === 0 && pspawn('npm', ['install'], { cwd: '.agservers', stdio: 'inherit' });
+  // Install Yarn.
+  const pmRet = await pspawn('yarn', ['--version']);
+  if (pmRet !== 0) {
+    await pspawn('npm', ['install', '-g', 'yarn'], { stdio: 'inherit' });
+  }
+  const pm = 'yarn';
+
+  const goRet = await pspawn('go', ['version']);
+  const goCmd = goRet === 0 && pspawn('npm', ['install'], { cwd: '.agservers', stdio: 'inherit' });
 
-  const children = await Promise.all([
-    pspawn(uiPackager, ['install'], { cwd: 'ui', stdio: 'inherit' }),
-    pspawn('npm', ['install'], { cwd: 'api', stdio: 'inherit' }),
-    pspawn('npm', ['install'], { cwd: 'contract', stdio: 'inherit' }),
+  await Promise.all([
+    pspawn(pm, ['install'], { cwd: 'ui', stdio: 'inherit' }),
+    pspawn(pm, ['install'], { cwd: 'api', stdio: 'inherit' }),
+    pspawn(pm, ['install'], { cwd: 'contract', stdio: 'inherit' }),
     goCmd,
   ]);