recompile_requirements: Add replace command

misc/requirements/README.md

@@ -8,6 +8,7 @@ Those files can also contain some special commands:
 - Add an additional comment to a line: `#@ comment: <package> <comment here>`
 - Filter a line for requirements.io: `#@ filter: <package> <filter>`
 - Don't include a package in the output: `#@ ignore: <package>` (or multiple packages)
+- Replace a part of a frozen package specification with another: `#@ replace <regex> <replacement>`
 
 Some examples:
 
@@ -15,4 +16,5 @@ Some examples:
 #@ comment: mypkg blah blub
 #@ filter: mypkg != 1.0.0
 #@ ignore: mypkg, otherpkg
+#@ replace: foo bar
 ```

misc/requirements/requirements-pylint-master.txt-raw

@@ -4,3 +4,9 @@
 
 # https://github.com/PyCQA/pylint/issues/932
 mccabe==0.5.0
+
+# remove @commit-id for scm installs
+#@ replace: @.*# #
+
+# fix qute-pylint location
+#@ replace: qute-pylint==.* ./scripts/dev/pylint_checkers

scripts/dev/recompile_requirements.py

@@ -38,11 +38,7 @@ REQ_DIR = os.path.join(os.path.dirname(os.path.abspath(__file__)),
 
 
 def convert_line(line, comments):
-    replacements = {
-        (r'@.*#', '#'),  # remove @commit-id for scm installs
-        (r'qute-pylint==.*', './scripts/dev/pylint_checkers'),
-    }
-    for pattern, repl in replacements:
+    for pattern, repl in comments['replace'].items():
         line = re.sub(pattern, repl, line)
 
     pkgname = line.split('=')[0]
@@ -68,6 +64,7 @@ def read_comments(fobj):
         'filter': {},
         'comment': {},
         'ignore': [],
+        'replace': {},
     }
     for line in fobj:
         if line.startswith('#@'):
@@ -82,6 +79,9 @@ def read_comments(fobj):
                 comments['comment'][pkg] = comment
             elif command == 'ignore':
                 comments['ignore'] += args.split(', ')
+            elif command == 'replace':
+                pattern, replacement = args.split(' ', maxsplit=1)
+                comments['replace'][pattern] = replacement
     return comments