rpm-ch: implement --meta-bts option

This gives the user the possibility to define what meta tags (in git
commit message) gbp-rpm-ch recognizes as bug tracking system references.
Alternatively, it makes it possible to disable bts meta tag parsing
altogether.

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>

docs/manpages/gbp-rpm-ch.xml

@@ -33,6 +33,7 @@
         <arg><option>--message=</option><replaceable>MESSAGE</replaceable></arg>
         <arg><option>--since=</option><replaceable>COMMITISH</replaceable></arg>
       </group>
+      <arg><option>--meta-bts=</option><replaceable>META_TAGS</replaceable></arg>
       <arg><option>--no-release</option></arg>
       <arg><option>--[no-]git-author</option></arg>
       <arg><option>--[no-]full</option></arg>
@@ -182,6 +183,19 @@
           </para>
         </listitem>
       </varlistentry>
+      <varlistentry>
+        <term><option>--meta-bts=</option><replaceable>META_TAGS</replaceable>
+        </term>
+        <listitem>
+          <para>
+          Meta tags in the commit messages that are interpreted as bug tracking
+          system related references. The recognized bts references are added in
+          the generated changelog entries. See the META TAGS section below for
+          more information. The bts meta tag tracking feature can be disabled
+          by defining an empty string.
+          </para>
+        </listitem>
+      </varlistentry>
       <varlistentry>
         <term><option>--no-release</option>
         </term>
@@ -416,6 +430,8 @@
           <para>
           Indicate in the changelog entry that bug
           <replaceable>BUGNUMBER</replaceable> was addressed in this commit.
+          The bts meta tags recognized by &gbp-rpm-ch; is actually defined by
+          the <option>--meta-bts</option> option.
           </para>
         </listitem>
       </varlistentry>

gbp/config.py

@@ -787,6 +787,7 @@ class GbpOptionParserRpm(GbpOptionParser):
         'changelog-revision': '',
         'spawn-editor': 'always',
         'editor-cmd': 'vim',
+        'meta-bts': '(Close|Closes|Fixes|Fix)',
         'spec-vcs-tag': '',
     })
 
@@ -849,6 +850,8 @@ class GbpOptionParserRpm(GbpOptionParser):
             'git-author':
                 "Use name and email from git-config for the changelog header, "
                 "default is '%(git-author)s'",
+            'meta-bts':
+                "Meta tags for the bts commands, default is '%(meta-bts)s'",
             'spec-vcs-tag':
                 "Set/update the 'VCS:' tag in the spec file, empty value "
                 "removes the tag entirely, default is '%(spec-vcs-tag)s'",

gbp/rpm/policy.py

@@ -94,8 +94,6 @@ class ChangelogEntryFormatter(object):
 
         # Maximum length for a changelog entry line
         max_entry_line_length = 76
-        # Bug tracking system related meta tags recognized from git commit msg
-        bts_meta_tags = ("Close", "Closes", "Fixes", "Fix")
         # Regexp for matching bug tracking system ids (e.g. "bgo#123")
         bug_id_re = r'[A-Za-z0-9#_\-]+'
 
@@ -107,15 +105,18 @@ def _parse_bts_tags(cls, lines, meta_tags):
 
             @param lines: commit message
             @type lines: C{list} of C{str}
-            @param meta_tags: meta tags to look for
-            @type meta_tags: C{tuple} of C{str}
+            @param meta_tags: meta tags (regexp) to look for
+            @type meta_tags: C{str}
             @return: bts-ids per meta tag and the non-mathced lines
             @rtype: (C{dict}, C{list} of C{str})
             """
+            if not meta_tags:
+                return ({}, lines[:])
+
             tags = {}
             other_lines = []
-            bts_re = re.compile(r'^(?P<tag>%s):\s*(?P<ids>.*)' %
-                                ('|'.join(meta_tags)), re.I)
+            bts_re = re.compile(r'^(?P<tag>%s):\s*(?P<ids>.*)' % meta_tags,
+                                re.I)
             bug_id_re = re.compile(cls.bug_id_re)
             for line in lines:
                 match = bts_re.match(line)
@@ -172,7 +173,7 @@ def compose(cls, commit_info, **kwargs):
                 return None
 
             # Parse and filter out bts-related meta-tags
-            bts_tags, body = cls._parse_bts_tags(body, cls.bts_meta_tags)
+            bts_tags, body = cls._parse_bts_tags(body, kwargs['meta_bts'])
 
             # Additional filtering
             body = cls._extra_filter(body, kwargs['ignore_re'])
@@ -191,7 +192,7 @@ def compose(cls, commit_info, **kwargs):
                 text.extend(["  " + line for line in body if line.strip()])
 
             # Add bts tags and ids in the end
-            for tag, ids in bts_tags.items():
+            for tag, ids in sorted(bts_tags.items()):
                 bts_msg = " (%s: %s)" % (tag, ', '.join(ids))
                 if len(text[-1]) + len(bts_msg) >= cls.max_entry_line_length:
                     text.append(" ")

gbp/scripts/rpm_ch.py

@@ -286,7 +286,8 @@ def entries_from_commits(changelog, repo, commits, options):
         info = repo.get_commit_info(commit)
         entry_text = ChangelogEntryFormatter.compose(info, full=options.full,
                                                      ignore_re=options.ignore_regex,
-                                                     id_len=options.idlen)
+                                                     id_len=options.idlen,
+                                                     meta_bts=options.meta_bts)
         if entry_text:
             entries.append(changelog.create_entry(author=info['author'].name,
                                                   text=entry_text))
@@ -447,6 +448,7 @@ def build_parser(name):
                          help="use all commits from the Git history, overrides "
                          "--since")
     # Formatting group options
+    format_grp.add_config_file_option(option_name="meta-bts", dest="meta_bts")
     format_grp.add_option("--no-release", action="store_false", default=True,
                           dest="release",
                           help="no release, just update the last changelog section")

tests/component/rpm/test_rpm_ch.py

@@ -173,6 +173,26 @@ def test_branch_options(self):
 
         eq_(mock_ch(['--packaging-branch=foo', '--ignore-branch']), 0)
 
+    def test_option_meta_bts(self):
+        """Test parsing of the bts meta tags"""
+        repo = self.init_test_repo('gbp-test-native')
+
+        # Create a dummy commit that references bts
+        with open('new-file', 'w') as fobj:
+            fobj.write('foobar\n')
+        repo.add_files('new-file')
+        repo.commit_all('Fix\n\nCloses: #123\nFixes: #456\n Fixes: #789')
+
+        eq_(mock_ch(['--since=HEAD^']), 0)
+        content = self.read_file('packaging/gbp-test-native.changes')
+        # rpm-ch shouldn't have picked the ref with leading whitespace
+        eq_(content[1], '- Fix (Closes: #123) (Fixes: #456)\n')
+
+        # Check the --meta-bts option
+        eq_(mock_ch(['--since=HEAD^', '--meta-bts=Fixes']), 0)
+        content = self.read_file('packaging/gbp-test-native.changes')
+        eq_(content[1], '- Fix (Fixes: #456)\n')
+
     def test_option_no_release(self):
         """Test the --no-release cmdline option"""
         self.init_test_repo('gbp-test-native')