Merge pull request #200 from zazuko/restore-stderr

fix: restore log to stderr

.changeset/bright-plums-sort.md

@@ -0,0 +1,5 @@
+---
+"barnard59": patch
+---
+
+Write CLI errors to `stderr`

packages/cli/bin/barnard59.js

@@ -35,10 +35,10 @@ const onError = async err => {
     if (err instanceof MultipleRootsError) {
       const alternatives = err.alternatives.map(x => `\n\t--pipeline ${x}`).join('')
       // eslint-disable-next-line no-console
-      console.log(`Multiple root pipelines found. Try one of these:${alternatives}`)
+      console.error(`Multiple root pipelines found. Try one of these:${alternatives}`)
     } else {
       // eslint-disable-next-line no-console
-      console.log(err)
+      console.error(err)
     }
   }
   await sdk.shutdown()

packages/cli/test/barnard59.test.js

@@ -18,7 +18,7 @@ describe('barnard59', function () {
       const result = shell.exec(command, { silent: true, cwd })
 
       strictEqual(result.code, 1)
-      expect(result.stdout).to.equal('Multiple root pipelines found. Try one of these:\n\t--pipeline http://example.org/pipeline/p1\n\t--pipeline http://example.org/pipeline/p2\n')
+      expect(result.stderr).to.equal('Multiple root pipelines found. Try one of these:\n\t--pipeline http://example.org/pipeline/p1\n\t--pipeline http://example.org/pipeline/p2\n')
     })
     it('should exit with error code 0 if there are no error while processing the pipeline', () => {
       const pipelineFile = filenamePipelineDefinition('simple')