black-primer: Print summary after individual failures

If the individual failures are verbose, it's useful to have
the summary at the end. Otherwise, it can be really difficult
to figure out which projects have an issue.

CHANGES.md

@@ -9,6 +9,7 @@
 - Fixed feature detection for positional-only arguments in lambdas (#2532)
 - Bumped typed-ast version minimum to 1.4.3 for 3.10 compatiblity (#2519)
 - Add primer support for --projects (#2555)
+- Print primer summary after individual failures (#2570)
 
 ### _Blackd_
 

src/black_primer/lib.py

@@ -88,6 +88,18 @@ def analyze_results(project_count: int, results: Results) -> int:
     failed_pct = round(((results.stats["failed"] / project_count) * 100), 2)
     success_pct = round(((results.stats["success"] / project_count) * 100), 2)
 
+    if results.failed_projects:
+        click.secho("\nFailed projects:\n", bold=True)
+
+    for project_name, project_cpe in results.failed_projects.items():
+        print(f"## {project_name}:")
+        print(f" - Returned {project_cpe.returncode}")
+        if project_cpe.stderr:
+            print(f" - stderr:\n{project_cpe.stderr.decode('utf8')}")
+        if project_cpe.stdout:
+            print(f" - stdout:\n{project_cpe.stdout.decode('utf8')}")
+        print("")
+
     click.secho("-- primer results 📊 --\n", bold=True)
     click.secho(
         f"{results.stats['success']} / {project_count} succeeded ({success_pct}%) ✅",
@@ -110,16 +122,8 @@ def analyze_results(project_count: int, results: Results) -> int:
     )
 
     if results.failed_projects:
-        click.secho("\nFailed projects:\n", bold=True)
-
-    for project_name, project_cpe in results.failed_projects.items():
-        print(f"## {project_name}:")
-        print(f" - Returned {project_cpe.returncode}")
-        if project_cpe.stderr:
-            print(f" - stderr:\n{project_cpe.stderr.decode('utf8')}")
-        if project_cpe.stdout:
-            print(f" - stdout:\n{project_cpe.stdout.decode('utf8')}")
-        print("")
+        failed = list(results.failed_projects.keys())
+        click.secho(f"\nFailed projects: {failed}\n", bold=True)
 
     return results.stats["failed"]
 

tests/test_primer.py

@@ -20,6 +20,14 @@
 
 
 EXPECTED_ANALYSIS_OUTPUT = """\
+
+Failed projects:
+
+## black:
+ - Returned 69
+ - stdout:
+Black didn't work
+
 -- primer results 📊 --
 
 68 / 69 succeeded (98.55%) ✅
@@ -28,12 +36,7 @@
  - 0 projects skipped due to Python version
  - 0 skipped due to long checkout
 
-Failed projects:
-
-## black:
- - Returned 69
- - stdout:
-Black didn't work
+Failed projects: ['black']
 
 """
 FAKE_PROJECT_CONFIG = {