xref: /openbmc/u-boot/tools/patman/series.py (revision 0499218d)
1# Copyright (c) 2011 The Chromium OS Authors.
2#
3# See file CREDITS for list of people who contributed to this
4# project.
5#
6# This program is free software; you can redistribute it and/or
7# modify it under the terms of the GNU General Public License as
8# published by the Free Software Foundation; either version 2 of
9# the License, or (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program; if not, write to the Free Software
18# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19# MA 02111-1307 USA
20#
21
22import itertools
23import os
24
25import get_maintainer
26import gitutil
27import terminal
28
29# Series-xxx tags that we understand
30valid_series = ['to', 'cc', 'version', 'changes', 'prefix', 'notes', 'name',
31                'cover-cc', 'process_log']
32
33class Series(dict):
34    """Holds information about a patch series, including all tags.
35
36    Vars:
37        cc: List of aliases/emails to Cc all patches to
38        commits: List of Commit objects, one for each patch
39        cover: List of lines in the cover letter
40        notes: List of lines in the notes
41        changes: (dict) List of changes for each version, The key is
42            the integer version number
43    """
44    def __init__(self):
45        self.cc = []
46        self.to = []
47        self.cover_cc = []
48        self.commits = []
49        self.cover = None
50        self.notes = []
51        self.changes = {}
52
53        # Written in MakeCcFile()
54        #  key: name of patch file
55        #  value: list of email addresses
56        self._generated_cc = {}
57
58    # These make us more like a dictionary
59    def __setattr__(self, name, value):
60        self[name] = value
61
62    def __getattr__(self, name):
63        return self[name]
64
65    def AddTag(self, commit, line, name, value):
66        """Add a new Series-xxx tag along with its value.
67
68        Args:
69            line: Source line containing tag (useful for debug/error messages)
70            name: Tag name (part after 'Series-')
71            value: Tag value (part after 'Series-xxx: ')
72        """
73        # If we already have it, then add to our list
74        name = name.replace('-', '_')
75        if name in self:
76            values = value.split(',')
77            values = [str.strip() for str in values]
78            if type(self[name]) != type([]):
79                raise ValueError("In %s: line '%s': Cannot add another value "
80                        "'%s' to series '%s'" %
81                            (commit.hash, line, values, self[name]))
82            self[name] += values
83
84        # Otherwise just set the value
85        elif name in valid_series:
86            self[name] = value
87        else:
88            raise ValueError("In %s: line '%s': Unknown 'Series-%s': valid "
89                        "options are %s" % (commit.hash, line, name,
90                            ', '.join(valid_series)))
91
92    def AddCommit(self, commit):
93        """Add a commit into our list of commits
94
95        We create a list of tags in the commit subject also.
96
97        Args:
98            commit: Commit object to add
99        """
100        commit.CheckTags()
101        self.commits.append(commit)
102
103    def ShowActions(self, args, cmd, process_tags):
104        """Show what actions we will/would perform
105
106        Args:
107            args: List of patch files we created
108            cmd: The git command we would have run
109            process_tags: Process tags as if they were aliases
110        """
111        col = terminal.Color()
112        print 'Dry run, so not doing much. But I would do this:'
113        print
114        print 'Send a total of %d patch%s with %scover letter.' % (
115                len(args), '' if len(args) == 1 else 'es',
116                self.get('cover') and 'a ' or 'no ')
117
118        # TODO: Colour the patches according to whether they passed checks
119        for upto in range(len(args)):
120            commit = self.commits[upto]
121            print col.Color(col.GREEN, '   %s' % args[upto])
122            cc_list = list(self._generated_cc[commit.patch])
123
124            # Skip items in To list
125            if 'to' in self:
126                try:
127                    map(cc_list.remove, gitutil.BuildEmailList(self.to))
128                except ValueError:
129                    pass
130
131            for email in cc_list:
132                if email == None:
133                    email = col.Color(col.YELLOW, "<alias '%s' not found>"
134                            % tag)
135                if email:
136                    print '      Cc: ',email
137        print
138        for item in gitutil.BuildEmailList(self.get('to', '<none>')):
139            print 'To:\t ', item
140        for item in gitutil.BuildEmailList(self.cc):
141            print 'Cc:\t ', item
142        print 'Version: ', self.get('version')
143        print 'Prefix:\t ', self.get('prefix')
144        if self.cover:
145            print 'Cover: %d lines' % len(self.cover)
146            cover_cc = gitutil.BuildEmailList(self.get('cover_cc', ''))
147            all_ccs = itertools.chain(cover_cc, *self._generated_cc.values())
148            for email in set(all_ccs):
149                    print '      Cc: ',email
150        if cmd:
151            print 'Git command: %s' % cmd
152
153    def MakeChangeLog(self, commit):
154        """Create a list of changes for each version.
155
156        Return:
157            The change log as a list of strings, one per line
158
159            Changes in v4:
160            - Jog the dial back closer to the widget
161
162            Changes in v3: None
163            Changes in v2:
164            - Fix the widget
165            - Jog the dial
166
167            etc.
168        """
169        final = []
170        process_it = self.get('process_log', '').split(',')
171        process_it = [item.strip() for item in process_it]
172        need_blank = False
173        for change in sorted(self.changes, reverse=True):
174            out = []
175            for this_commit, text in self.changes[change]:
176                if commit and this_commit != commit:
177                    continue
178                if 'uniq' not in process_it or text not in out:
179                    out.append(text)
180            line = 'Changes in v%d:' % change
181            have_changes = len(out) > 0
182            if 'sort' in process_it:
183                out = sorted(out)
184            if have_changes:
185                out.insert(0, line)
186            else:
187                out = [line + ' None']
188            if need_blank:
189                out.insert(0, '')
190            final += out
191            need_blank = have_changes
192        if self.changes:
193            final.append('')
194        return final
195
196    def DoChecks(self):
197        """Check that each version has a change log
198
199        Print an error if something is wrong.
200        """
201        col = terminal.Color()
202        if self.get('version'):
203            changes_copy = dict(self.changes)
204            for version in range(1, int(self.version) + 1):
205                if self.changes.get(version):
206                    del changes_copy[version]
207                else:
208                    if version > 1:
209                        str = 'Change log missing for v%d' % version
210                        print col.Color(col.RED, str)
211            for version in changes_copy:
212                str = 'Change log for unknown version v%d' % version
213                print col.Color(col.RED, str)
214        elif self.changes:
215            str = 'Change log exists, but no version is set'
216            print col.Color(col.RED, str)
217
218    def MakeCcFile(self, process_tags, cover_fname, raise_on_error):
219        """Make a cc file for us to use for per-commit Cc automation
220
221        Also stores in self._generated_cc to make ShowActions() faster.
222
223        Args:
224            process_tags: Process tags as if they were aliases
225            cover_fname: If non-None the name of the cover letter.
226            raise_on_error: True to raise an error when an alias fails to match,
227                False to just print a message.
228        Return:
229            Filename of temp file created
230        """
231        # Look for commit tags (of the form 'xxx:' at the start of the subject)
232        fname = '/tmp/patman.%d' % os.getpid()
233        fd = open(fname, 'w')
234        all_ccs = []
235        for commit in self.commits:
236            list = []
237            if process_tags:
238                list += gitutil.BuildEmailList(commit.tags,
239                                               raise_on_error=raise_on_error)
240            list += gitutil.BuildEmailList(commit.cc_list,
241                                           raise_on_error=raise_on_error)
242            list += get_maintainer.GetMaintainer(commit.patch)
243            all_ccs += list
244            print >>fd, commit.patch, ', '.join(list)
245            self._generated_cc[commit.patch] = list
246
247        if cover_fname:
248            cover_cc = gitutil.BuildEmailList(self.get('cover_cc', ''))
249            print >>fd, cover_fname, ', '.join(set(cover_cc + all_ccs))
250
251        fd.close()
252        return fname
253
254    def AddChange(self, version, commit, info):
255        """Add a new change line to a version.
256
257        This will later appear in the change log.
258
259        Args:
260            version: version number to add change list to
261            info: change line for this version
262        """
263        if not self.changes.get(version):
264            self.changes[version] = []
265        self.changes[version].append([commit, info])
266
267    def GetPatchPrefix(self):
268        """Get the patch version string
269
270        Return:
271            Patch string, like 'RFC PATCH v5' or just 'PATCH'
272        """
273        version = ''
274        if self.get('version'):
275            version = ' v%s' % self['version']
276
277        # Get patch name prefix
278        prefix = ''
279        if self.get('prefix'):
280            prefix = '%s ' % self['prefix']
281        return '%sPATCH%s' % (prefix, version)
282