xref: /openbmc/u-boot/tools/patman/series.py (revision 983c72f4)
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        allow_overwrite: Allow tags to overwrite an existing tag
44    """
45    def __init__(self):
46        self.cc = []
47        self.to = []
48        self.cover_cc = []
49        self.commits = []
50        self.cover = None
51        self.notes = []
52        self.changes = {}
53        self.allow_overwrite = False
54
55        # Written in MakeCcFile()
56        #  key: name of patch file
57        #  value: list of email addresses
58        self._generated_cc = {}
59
60    # These make us more like a dictionary
61    def __setattr__(self, name, value):
62        self[name] = value
63
64    def __getattr__(self, name):
65        return self[name]
66
67    def AddTag(self, commit, line, name, value):
68        """Add a new Series-xxx tag along with its value.
69
70        Args:
71            line: Source line containing tag (useful for debug/error messages)
72            name: Tag name (part after 'Series-')
73            value: Tag value (part after 'Series-xxx: ')
74        """
75        # If we already have it, then add to our list
76        name = name.replace('-', '_')
77        if name in self and not self.allow_overwrite:
78            values = value.split(',')
79            values = [str.strip() for str in values]
80            if type(self[name]) != type([]):
81                raise ValueError("In %s: line '%s': Cannot add another value "
82                        "'%s' to series '%s'" %
83                            (commit.hash, line, values, self[name]))
84            self[name] += values
85
86        # Otherwise just set the value
87        elif name in valid_series:
88            self[name] = value
89        else:
90            raise ValueError("In %s: line '%s': Unknown 'Series-%s': valid "
91                        "options are %s" % (commit.hash, line, name,
92                            ', '.join(valid_series)))
93
94    def AddCommit(self, commit):
95        """Add a commit into our list of commits
96
97        We create a list of tags in the commit subject also.
98
99        Args:
100            commit: Commit object to add
101        """
102        commit.CheckTags()
103        self.commits.append(commit)
104
105    def ShowActions(self, args, cmd, process_tags):
106        """Show what actions we will/would perform
107
108        Args:
109            args: List of patch files we created
110            cmd: The git command we would have run
111            process_tags: Process tags as if they were aliases
112        """
113        col = terminal.Color()
114        print 'Dry run, so not doing much. But I would do this:'
115        print
116        print 'Send a total of %d patch%s with %scover letter.' % (
117                len(args), '' if len(args) == 1 else 'es',
118                self.get('cover') and 'a ' or 'no ')
119
120        # TODO: Colour the patches according to whether they passed checks
121        for upto in range(len(args)):
122            commit = self.commits[upto]
123            print col.Color(col.GREEN, '   %s' % args[upto])
124            cc_list = list(self._generated_cc[commit.patch])
125
126            # Skip items in To list
127            if 'to' in self:
128                try:
129                    map(cc_list.remove, gitutil.BuildEmailList(self.to))
130                except ValueError:
131                    pass
132
133            for email in cc_list:
134                if email == None:
135                    email = col.Color(col.YELLOW, "<alias '%s' not found>"
136                            % tag)
137                if email:
138                    print '      Cc: ',email
139        print
140        for item in gitutil.BuildEmailList(self.get('to', '<none>')):
141            print 'To:\t ', item
142        for item in gitutil.BuildEmailList(self.cc):
143            print 'Cc:\t ', item
144        print 'Version: ', self.get('version')
145        print 'Prefix:\t ', self.get('prefix')
146        if self.cover:
147            print 'Cover: %d lines' % len(self.cover)
148            cover_cc = gitutil.BuildEmailList(self.get('cover_cc', ''))
149            all_ccs = itertools.chain(cover_cc, *self._generated_cc.values())
150            for email in set(all_ccs):
151                    print '      Cc: ',email
152        if cmd:
153            print 'Git command: %s' % cmd
154
155    def MakeChangeLog(self, commit):
156        """Create a list of changes for each version.
157
158        Return:
159            The change log as a list of strings, one per line
160
161            Changes in v4:
162            - Jog the dial back closer to the widget
163
164            Changes in v3: None
165            Changes in v2:
166            - Fix the widget
167            - Jog the dial
168
169            etc.
170        """
171        final = []
172        process_it = self.get('process_log', '').split(',')
173        process_it = [item.strip() for item in process_it]
174        need_blank = False
175        for change in sorted(self.changes, reverse=True):
176            out = []
177            for this_commit, text in self.changes[change]:
178                if commit and this_commit != commit:
179                    continue
180                if 'uniq' not in process_it or text not in out:
181                    out.append(text)
182            line = 'Changes in v%d:' % change
183            have_changes = len(out) > 0
184            if 'sort' in process_it:
185                out = sorted(out)
186            if have_changes:
187                out.insert(0, line)
188            else:
189                out = [line + ' None']
190            if need_blank:
191                out.insert(0, '')
192            final += out
193            need_blank = have_changes
194        if self.changes:
195            final.append('')
196        return final
197
198    def DoChecks(self):
199        """Check that each version has a change log
200
201        Print an error if something is wrong.
202        """
203        col = terminal.Color()
204        if self.get('version'):
205            changes_copy = dict(self.changes)
206            for version in range(1, int(self.version) + 1):
207                if self.changes.get(version):
208                    del changes_copy[version]
209                else:
210                    if version > 1:
211                        str = 'Change log missing for v%d' % version
212                        print col.Color(col.RED, str)
213            for version in changes_copy:
214                str = 'Change log for unknown version v%d' % version
215                print col.Color(col.RED, str)
216        elif self.changes:
217            str = 'Change log exists, but no version is set'
218            print col.Color(col.RED, str)
219
220    def MakeCcFile(self, process_tags, cover_fname, raise_on_error):
221        """Make a cc file for us to use for per-commit Cc automation
222
223        Also stores in self._generated_cc to make ShowActions() faster.
224
225        Args:
226            process_tags: Process tags as if they were aliases
227            cover_fname: If non-None the name of the cover letter.
228            raise_on_error: True to raise an error when an alias fails to match,
229                False to just print a message.
230        Return:
231            Filename of temp file created
232        """
233        # Look for commit tags (of the form 'xxx:' at the start of the subject)
234        fname = '/tmp/patman.%d' % os.getpid()
235        fd = open(fname, 'w')
236        all_ccs = []
237        for commit in self.commits:
238            list = []
239            if process_tags:
240                list += gitutil.BuildEmailList(commit.tags,
241                                               raise_on_error=raise_on_error)
242            list += gitutil.BuildEmailList(commit.cc_list,
243                                           raise_on_error=raise_on_error)
244            list += get_maintainer.GetMaintainer(commit.patch)
245            all_ccs += list
246            print >>fd, commit.patch, ', '.join(list)
247            self._generated_cc[commit.patch] = list
248
249        if cover_fname:
250            cover_cc = gitutil.BuildEmailList(self.get('cover_cc', ''))
251            print >>fd, cover_fname, ', '.join(set(cover_cc + all_ccs))
252
253        fd.close()
254        return fname
255
256    def AddChange(self, version, commit, info):
257        """Add a new change line to a version.
258
259        This will later appear in the change log.
260
261        Args:
262            version: version number to add change list to
263            info: change line for this version
264        """
265        if not self.changes.get(version):
266            self.changes[version] = []
267        self.changes[version].append([commit, info])
268
269    def GetPatchPrefix(self):
270        """Get the patch version string
271
272        Return:
273            Patch string, like 'RFC PATCH v5' or just 'PATCH'
274        """
275        version = ''
276        if self.get('version'):
277            version = ' v%s' % self['version']
278
279        # Get patch name prefix
280        prefix = ''
281        if self.get('prefix'):
282            prefix = '%s ' % self['prefix']
283        return '%sPATCH%s' % (prefix, version)
284