added smoke test

.github/workflows/smoke-test.yml

@@ -31,3 +31,7 @@ jobs:
     - name: Run unit tests with pytest
       run: |
         python -m pytest tests
+    - name: Run notebooks
+      run: |
+        rail render-nb
+

src/rail/hub/commands.py

@@ -19,7 +19,7 @@ def cli() -> None:
 @options.inputs()
 def render_nb(outdir, clear_output, dry_run, inputs, **kwargs):
     """Render jupyter notebooks"""
-    scripts.render_nb(outdir, clear_output, dry_run, inputs)
+    return scripts.render_nb(outdir, clear_output, dry_run, inputs)
 
 
 @cli.command()
@@ -30,7 +30,8 @@ def render_nb(outdir, clear_output, dry_run, inputs, **kwargs):
 def clone_source(outdir, git_mode, dry_run, package_file, **kwargs):
     """Install packages from source"""
     scripts.clone_source(outdir, git_mode, dry_run, package_file)
-
+    return 0
+
 
 @cli.command()
 @options.outdir(default='..')
@@ -40,7 +41,8 @@ def clone_source(outdir, git_mode, dry_run, package_file, **kwargs):
 def install(outdir, dry_run, from_source, package_file, **kwargs):
     """pip install rail packages one by one, to be fault tolerant"""
     scripts.install(outdir, from_source, dry_run, package_file)
-
+    return 0
+
 
 @cli.command()
 @options.outdir(default='..')
@@ -53,3 +55,4 @@ def install(outdir, dry_run, from_source, package_file, **kwargs):
 def info(**kwargs):
     """pip install rail packages one by one, to be fault tolerant"""
     scripts.info(**kwargs)
+    return 0

src/rail/hub/scripts.py

@@ -39,9 +39,14 @@ def render_nb(outdir, clear_output, dry_run, inputs, **kwargs):
             render = os.system(comline)
         status[nb_file] = render
 
+    ret_val = 0
     for key, val in status.items():
         print(f"{key} {val}")
+        if val != 0:
+            ret_val = val
 
+    return ret_val
+
 
 def clone_source(outdir, git_mode, dry_run, package_file):