Fix publishing snapshot

When calling APTLY publish API, we have to pass the distribution name
and not the repository name. Distribution names are now collected from
changes files and a call to the APTLY publish API will be made for all
updated distribution.

Also add a PREFIX parameter to permit to specify the APTLY prefix (and
storage if it need to be specified).

Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine
-ADD entrypoint.py /bin/
-RUN chmod +x /bin/entrypoint.py
+ADD aptly-publish /bin/
+RUN chmod +x /bin/aptly-publish
 RUN apk -Uuv add python3 py3-requests py3-urllib3 py3-pip
 RUN pip install debian-parser
-ENTRYPOINT /bin/entrypoint.py
+ENTRYPOINT /bin/aptly-publish

aptly-publish

@@ -16,28 +16,38 @@ from urllib3.util import Retry
 from debian_parser import PackagesParser
 
 
+def from_env(name, default=None):
+    """ Retrieve a parameter from environment """
+    for var in (f'PLUGIN_{name}', f'APTLY_{name}'):
+        if var in os.environ:
+            return os.environ[var]
+    return default
+
+
 # Handle parameters from environment
-API_URL = os.environ.get('PLUGIN_API_URL', None)
+API_URL = from_env('API_URL', None)
 if not API_URL:
     print('API URL not provided')
     sys.exit(1)
 
-API_USERNAME = os.environ.get('PLUGIN_API_USERNAME', None)
+API_USERNAME = from_env('API_USERNAME', None)
 if not API_USERNAME:
     print('API username not provided')
     sys.exit(1)
 
-API_PASSWORD = os.environ.get('PLUGIN_API_PASSWORD', None)
+API_PASSWORD = from_env('API_PASSWORD', None)
 if not API_PASSWORD:
     print('API password not provided')
     sys.exit(1)
 
-MAX_RETRY = os.environ.get('PLUGIN_MAX_RETRIES', None)
+MAX_RETRY = from_env('MAX_RETRIES', None)
 
-REPO_NAME = os.environ.get('PLUGIN_REPO_NAME', 'stable')
-REPO_COMPONENT = os.environ.get('PLUGIN_REPO_COMPONENT', 'main')
-DIST = os.environ.get('PLUGIN_PATH', 'dist')
-SOURCE_NAME = os.environ.get('PLUGIN_SOURCE_PACKAGE_NAME', None)
+REPO_NAME = from_env('REPO_NAME', 'stable')
+PREFIX = from_env('PREFIX', '.')
+REPO_COMPONENT = from_env('REPO_COMPONENT', 'main')
+INPUT_PATH = from_env('PATH', 'dist')
+SOURCE_NAME = from_env('SOURCE_PACKAGE_NAME', None)
+DISTRIBUTIONS = []
 
 # List changes files
 changes_files_regex = (
@@ -48,21 +58,21 @@ changes_files_regex = (
 )
 changes_files = []
 try:
-    for filename in os.listdir(DIST):
-        filepath = os.path.join(DIST, filename)
+    for filename in os.listdir(INPUT_PATH):
+        filepath = os.path.join(INPUT_PATH, filename)
         if not os.path.isfile(filepath):
             continue
         if changes_files_regex.match(filename):
             changes_files.append(filepath)
 except FileNotFoundError:
-    print(f'Specified directory path "{DIST}" not found')
+    print(f'Specified directory path "{INPUT_PATH}" not found')
     sys.exit(1)
 except NotADirectoryError:
-    print(f'Specified path "{DIST}" is not a directory')
+    print(f'Specified path "{INPUT_PATH}" is not a directory')
     sys.exit(1)
 
 if not changes_files:
-    print(f'No changes file found in {DIST}')
+    print(f'No changes file found in {INPUT_PATH}')
     sys.exit(1)
 
 
@@ -88,13 +98,14 @@ def list_files_in_changes_file(filepath):
     files = []
     for infos in parser.parse():
         for info in infos:
-            if info['tag'].lower() != 'files':
-                continue
-
+            if info['tag'].lower() == 'files':
                 for line in info['value'].split('  '):
                     if not line:
                         continue
                     files.append(os.path.join(dirpath, line.split()[-1]))
+            if info['tag'].lower() == 'distribution':
+                if info['value'] not in DISTRIBUTIONS:
+                    DISTRIBUTIONS.append(info['value'])
     return files
 
 
@@ -137,7 +148,9 @@ def include_file(package_name, changes_file):
         result.status_code == 200 and
         data.get('Report', {}).get('Added')
     ):
-        print(f'Unknown error occurred including {changes_file}')
+        print(
+            f'Unknown error occurred including {changes_file}'
+            'See APTLY API logs for details.')
         return False
     return True
 
@@ -150,9 +163,8 @@ for changes_file in changes_files:
     for filepath in filepaths:
         if not upload_file(package_name, filepath):
             print(
-                f'    - {filepath}: fail to upload file, pass this changes '
-                'file'
-            )
+                f'    - {filepath}: fail to upload file. See APTLY API logs '
+                'for details.')
             sys.exit(1)
         else:
             print(f'    - {filepath}')
@@ -182,30 +194,35 @@ error = (
     not data.get('CreatedAt')
 )
 if error:
-    print(f'Fail to create snapshot "{snap_name}" of repository "{REPO_NAME}"')
+    print(
+        f'Fail to create snapshot "{snap_name}" of repository "{REPO_NAME}".'
+        'See APTLY API logs for details.')
     sys.exit(1)
 
 
-# Update published snapshot of repository
-print(
-    f'Update published snapshot of repository "{REPO_NAME}" to "{snap_name}"')
-url = f'{API_URL}/publish/:./{REPO_NAME}'
-payload = {
+# Update published snapshot of repository for each distributions
+for distribution in DISTRIBUTIONS:
+    print(
+        f'Update published snapshot of distribution "{distribution}" to '
+        f'"{snap_name}" (prefix: {PREFIX})')
+    url = f'{API_URL}/publish/:{PREFIX}/{distribution}'
+    payload = {
         'Snapshots': [
             {
                 'Component': REPO_COMPONENT,
                 'Name': snap_name
             }
         ]
-}
-result = session.put(url, json=payload)
-if (
+    }
+    result = session.put(url, json=payload)
+    if (
         result.status_code < 200 or
         result.status_code > 299
-):
+    ):
         print(
-        f'Fail to update published snapshot of repository "{REPO_NAME}" to '
-        f'"{snap_name}"')
+            f'Fail to update published snapshot of distribution "{distribution}" '
+            f'to "{snap_name}" (prefix: {PREFIX}). See APTLY API logs for '
+            'details.')
         sys.exit(1)
 
 print("Done.")