fix: enable empirica serve in docker container (#504)

.changeset/fix-docker-serve.md

@@ -0,0 +1,5 @@
+---
+"@empirica/core": patch
+---
+
+Enable `empirica serve` to run in the official Docker container image.

.github/workflows/build_and_release.yaml

@@ -8,10 +8,10 @@ on:
     paths-ignore:
       - "cmds/proxy/**"
       - ".github/workflows/on_push_proxy.yaml"
-  pull_request:
-    paths-ignore:
-      - "cmds/proxy/**"
-      - ".github/workflows/on_push_proxy.yaml"
+  # pull_request:
+  #   paths-ignore:
+  #     - "cmds/proxy/**"
+  #     - ".github/workflows/on_push_proxy.yaml"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -25,7 +25,8 @@ jobs:
   npm:
     name: Build npm package
     runs-on: ubuntu-latest
-    if: github.repository == 'empiricaly/empirica' && github.event.pull_request.draft == false
+    if: github.repository == 'empiricaly/empirica'
+    #  && github.event.pull_request.draft == false
     steps:
       - name: Checkout Repo
         uses: actions/checkout@v3

internal/build/exec.go

@@ -146,14 +146,18 @@ func FindCurrentBinaryVersion() (*Build, error) {
 	return build, nil
 }
 
+// errNoInstalledVersions is returned when no versions are installed, which
+// would imply we are running empirica without the proxy.
+var ErrNoInstalledVersions = errors.New("no installed versions")
+
 func GetLatestInstalledVersion() (*Build, error) {
 	versions, err := GetInstalledVersions()
 	if err != nil {
 		return nil, errors.Wrap(err, "get installed versions")
 	}
 
 	if len(versions) == 0 {
-		return nil, errors.New("no installed versions")
+		return nil, ErrNoInstalledVersions
 	}
 
 	return versions[len(versions)-1], nil

internal/bundle/serve.go

@@ -34,16 +34,15 @@ func Serve(ctx context.Context, config *empirica.Config, in string, clean, devMo
 		log.Fatal().Err(err).Msg("invalid config")
 	}
 
-	b, err := build.FindCurrentBinaryVersion()
-	if err != nil {
-		log.Fatal().Err(err).Msg("failed to find bundle version")
-	}
-
-	// If we are not running the correct version, restart with the correct
-	// version. The new version will automatically be picked up on restart since
-	// the version in the bundle will have already been exported to the
-	// .empirica/release file in the current dir.
-	if b.Version != build.Current().Version && os.Getenv(build.BuildSelectionEnvVar) == "" {
+	if b, err := build.FindCurrentBinaryVersion(); err != nil {
+		if !errors.Is(err, build.ErrNoInstalledVersions) {
+			log.Fatal().Err(err).Msg("failed to find bundle version")
+		}
+	} else if b.Version != build.Current().Version && os.Getenv(build.BuildSelectionEnvVar) == "" {
+		// If we are not running the correct version, restart with the correct
+		// version. The new version will automatically be picked up on restart since
+		// the version in the bundle will have already been exported to the
+		// .empirica/release file in the current dir.
 		log.Info().
 			Str("from", build.Current().Version).
 			Str("to", b.Version).