xref: /openbmc/u-boot/tools/patman/series.py (revision bf48fcb6)
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 os
23
24import gitutil
25import terminal
26
27# Series-xxx tags that we understand
28valid_series = ['to', 'cc', 'version', 'changes', 'prefix', 'notes', 'name'];
29
30class Series(dict):
31    """Holds information about a patch series, including all tags.
32
33    Vars:
34        cc: List of aliases/emails to Cc all patches to
35        commits: List of Commit objects, one for each patch
36        cover: List of lines in the cover letter
37        notes: List of lines in the notes
38        changes: (dict) List of changes for each version, The key is
39            the integer version number
40    """
41    def __init__(self):
42        self.cc = []
43        self.to = []
44        self.commits = []
45        self.cover = None
46        self.notes = []
47        self.changes = {}
48
49    # These make us more like a dictionary
50    def __setattr__(self, name, value):
51        self[name] = value
52
53    def __getattr__(self, name):
54        return self[name]
55
56    def AddTag(self, commit, line, name, value):
57        """Add a new Series-xxx tag along with its value.
58
59        Args:
60            line: Source line containing tag (useful for debug/error messages)
61            name: Tag name (part after 'Series-')
62            value: Tag value (part after 'Series-xxx: ')
63        """
64        # If we already have it, then add to our list
65        if name in self:
66            values = value.split(',')
67            values = [str.strip() for str in values]
68            if type(self[name]) != type([]):
69                raise ValueError("In %s: line '%s': Cannot add another value "
70                        "'%s' to series '%s'" %
71                            (commit.hash, line, values, self[name]))
72            self[name] += values
73
74        # Otherwise just set the value
75        elif name in valid_series:
76            self[name] = value
77        else:
78            raise ValueError("In %s: line '%s': Unknown 'Series-%s': valid "
79                        "options are %s" % (commit.hash, line, name,
80                            ', '.join(valid_series)))
81
82    def AddCommit(self, commit):
83        """Add a commit into our list of commits
84
85        We create a list of tags in the commit subject also.
86
87        Args:
88            commit: Commit object to add
89        """
90        commit.CheckTags()
91        self.commits.append(commit)
92
93    def ShowActions(self, args, cmd, process_tags):
94        """Show what actions we will/would perform
95
96        Args:
97            args: List of patch files we created
98            cmd: The git command we would have run
99            process_tags: Process tags as if they were aliases
100        """
101        col = terminal.Color()
102        print 'Dry run, so not doing much. But I would do this:'
103        print
104        print 'Send a total of %d patch%s with %scover letter.' % (
105                len(args), '' if len(args) == 1 else 'es',
106                self.get('cover') and 'a ' or 'no ')
107
108        # TODO: Colour the patches according to whether they passed checks
109        for upto in range(len(args)):
110            commit = self.commits[upto]
111            print col.Color(col.GREEN, '   %s' % args[upto])
112            cc_list = []
113            if process_tags:
114                cc_list += gitutil.BuildEmailList(commit.tags)
115            cc_list += gitutil.BuildEmailList(commit.cc_list)
116
117            # Skip items in To list
118            if 'to' in self:
119                try:
120                    map(cc_list.remove, gitutil.BuildEmailList(self.to))
121                except ValueError:
122                    pass
123
124            for email in cc_list:
125                if email == None:
126                    email = col.Color(col.YELLOW, "<alias '%s' not found>"
127                            % tag)
128                if email:
129                    print '      Cc: ',email
130        print
131        for item in gitutil.BuildEmailList(self.get('to', '<none>')):
132            print 'To:\t ', item
133        for item in gitutil.BuildEmailList(self.cc):
134            print 'Cc:\t ', item
135        print 'Version: ', self.get('version')
136        print 'Prefix:\t ', self.get('prefix')
137        if self.cover:
138            print 'Cover: %d lines' % len(self.cover)
139        if cmd:
140            print 'Git command: %s' % cmd
141
142    def MakeChangeLog(self, commit):
143        """Create a list of changes for each version.
144
145        Return:
146            The change log as a list of strings, one per line
147
148            Changes in v4:
149            - Jog the dial back closer to the widget
150
151            Changes in v3: None
152            Changes in v2:
153            - Fix the widget
154            - Jog the dial
155
156            etc.
157        """
158        final = []
159        need_blank = False
160        for change in sorted(self.changes, reverse=True):
161            out = []
162            for this_commit, text in self.changes[change]:
163                if commit and this_commit != commit:
164                    continue
165                out.append(text)
166            line = 'Changes in v%d:' % change
167            have_changes = len(out) > 0
168            if have_changes:
169                out.insert(0, line)
170            else:
171                out = [line + ' None']
172            if need_blank:
173                out.insert(0, '')
174            final += out
175            need_blank = have_changes
176        if self.changes:
177            final.append('')
178        return final
179
180    def DoChecks(self):
181        """Check that each version has a change log
182
183        Print an error if something is wrong.
184        """
185        col = terminal.Color()
186        if self.get('version'):
187            changes_copy = dict(self.changes)
188            for version in range(1, int(self.version) + 1):
189                if self.changes.get(version):
190                    del changes_copy[version]
191                else:
192                    if version > 1:
193                        str = 'Change log missing for v%d' % version
194                        print col.Color(col.RED, str)
195            for version in changes_copy:
196                str = 'Change log for unknown version v%d' % version
197                print col.Color(col.RED, str)
198        elif self.changes:
199            str = 'Change log exists, but no version is set'
200            print col.Color(col.RED, str)
201
202    def MakeCcFile(self, process_tags):
203        """Make a cc file for us to use for per-commit Cc automation
204
205        Args:
206            process_tags: Process tags as if they were aliases
207        Return:
208            Filename of temp file created
209        """
210        # Look for commit tags (of the form 'xxx:' at the start of the subject)
211        fname = '/tmp/patman.%d' % os.getpid()
212        fd = open(fname, 'w')
213        for commit in self.commits:
214            list = []
215            if process_tags:
216                list += gitutil.BuildEmailList(commit.tags)
217            list += gitutil.BuildEmailList(commit.cc_list)
218            print >>fd, commit.patch, ', '.join(list)
219
220        fd.close()
221        return fname
222
223    def AddChange(self, version, commit, info):
224        """Add a new change line to a version.
225
226        This will later appear in the change log.
227
228        Args:
229            version: version number to add change list to
230            info: change line for this version
231        """
232        if not self.changes.get(version):
233            self.changes[version] = []
234        self.changes[version].append([commit, info])
235
236    def GetPatchPrefix(self):
237        """Get the patch version string
238
239        Return:
240            Patch string, like 'RFC PATCH v5' or just 'PATCH'
241        """
242        version = ''
243        if self.get('version'):
244            version = ' v%s' % self['version']
245
246        # Get patch name prefix
247        prefix = ''
248        if self.get('prefix'):
249            prefix = '%s ' % self['prefix']
250        return '%sPATCH%s' % (prefix, version)
251