1 # SPDX-License-Identifier: GPL-2.0+
3 # Copyright 2020 Google LLC
5 """Handles the main control logic of patman
7 This module provides various functions called by the main program to implement
8 the features of patman.
14 from patman import checkpatch
15 from patman import gitutil
16 from patman import patchstream
17 from patman import terminal
20 """Do required setup before doing anything"""
23 def prepare_patches(col, branch, count, start, end, ignore_binary):
24 """Figure out what patches to generate, then generate them
26 The patch files are written to the current directory, e.g. 0001_xxx.patch
30 col (terminal.Color): Colour output object
31 branch (str): Branch to create patches from (None = current)
32 count (int): Number of patches to produce, or -1 to produce patches for
33 the current branch back to the upstream commit
34 start (int): Start partch to use (0=first / top of branch)
35 end (int): End patch to use (0=last one in series, 1=one before that,
37 ignore_binary (bool): Don't generate patches for binary files
41 Series object for this series (set of patches)
42 Filename of the cover letter as a string (None if none)
43 patch_files: List of patch filenames, each a string, e.g.
44 ['0001_xxx.patch', '0002_yyy.patch']
47 # Work out how many patches to send if we can
48 count = (gitutil.CountCommitsToBranch(branch) - start)
51 str = 'No commits found to process - please use -c flag, or run:\n' \
52 ' git branch --set-upstream-to remote/branch'
53 sys.exit(col.Color(col.RED, str))
55 # Read the metadata from the commits
57 series = patchstream.get_metadata(branch, start, to_do)
58 cover_fname, patch_files = gitutil.CreatePatches(
59 branch, start, to_do, ignore_binary, series)
61 # Fix up the patch files to our liking, and insert the cover letter
62 patchstream.fix_patches(series, patch_files)
63 if cover_fname and series.get('cover'):
64 patchstream.insert_cover_letter(cover_fname, series, to_do)
65 return series, cover_fname, patch_files
67 def check_patches(series, patch_files, run_checkpatch, verbose):
68 """Run some checks on a set of patches
70 This santiy-checks the patman tags like Series-version and runs the patches
74 series (Series): Series object for this series (set of patches)
75 patch_files (list): List of patch filenames, each a string, e.g.
76 ['0001_xxx.patch', '0002_yyy.patch']
77 run_checkpatch (bool): True to run checkpatch.pl
78 verbose (bool): True to print out every line of the checkpatch output as
82 bool: True if the patches had no errors, False if they did
84 # Do a few checks on the series
87 # Check the patches, and run them through 'git am' just to be sure
89 ok = checkpatch.CheckPatches(verbose, patch_files)
95 def email_patches(col, series, cover_fname, patch_files, process_tags, its_a_go,
96 ignore_bad_tags, add_maintainers, limit, dry_run, in_reply_to,
98 """Email patches to the recipients
100 This emails out the patches and cover letter using 'git send-email'. Each
101 patch is copied to recipients identified by the patch tag and output from
102 the get_maintainer.pl script. The cover letter is copied to all recipients
105 To make this work a CC file is created holding the recipients for each patch
106 and the cover letter. See the main program 'cc_cmd' for this logic.
109 col (terminal.Color): Colour output object
110 series (Series): Series object for this series (set of patches)
111 cover_fname (str): Filename of the cover letter as a string (None if
113 patch_files (list): List of patch filenames, each a string, e.g.
114 ['0001_xxx.patch', '0002_yyy.patch']
115 process_tags (bool): True to process subject tags in each patch, e.g.
116 for 'dm: spi: Add SPI support' this would be 'dm' and 'spi'. The
117 tags are looked up in the configured sendemail.aliasesfile and also
118 in ~/.patman (see README)
119 its_a_go (bool): True if we are going to actually send the patches,
120 False if the patches have errors and will not be sent unless
122 ignore_bad_tags (bool): True to just print a warning for unknown tags,
123 False to halt with an error
124 add_maintainers (bool): Run the get_maintainer.pl script for each patch
125 limit (int): Limit on the number of people that can be cc'd on a single
126 patch or the cover letter (None if no limit)
127 dry_run (bool): Don't actually email the patches, just print out what
129 in_reply_to (str): If not None we'll pass this to git as --in-reply-to.
130 Should be a message ID that this is in reply to.
131 thread (bool): True to add --thread to git send-email (make all patches
132 reply to cover-letter or first patch in series)
133 smtp_server (str): SMTP server to use to send patches (None for default)
135 cc_file = series.MakeCcFile(process_tags, cover_fname, not ignore_bad_tags,
136 add_maintainers, limit)
138 # Email the patches out (giving the user time to check / cancel)
141 cmd = gitutil.EmailPatches(
142 series, cover_fname, patch_files, dry_run, not ignore_bad_tags,
143 cc_file, in_reply_to=in_reply_to, thread=thread,
144 smtp_server=smtp_server)
146 print(col.Color(col.RED, "Not sending emails due to errors/warnings"))
148 # For a dry run, just show our actions as a sanity check
150 series.ShowActions(patch_files, cmd, process_tags)
152 print(col.Color(col.RED, "Email would not be sent"))
157 """Create, check and send patches by email
160 args (argparse.Namespace): Arguments to patman
163 col = terminal.Color()
164 series, cover_fname, patch_files = prepare_patches(
165 col, args.branch, args.count, args.start, args.end,
167 ok = check_patches(series, patch_files, args.check_patch,
170 ok = ok and gitutil.CheckSuppressCCConfig()
172 its_a_go = ok or args.ignore_errors
174 col, series, cover_fname, patch_files, args.process_tags,
175 its_a_go, args.ignore_bad_tags, args.add_maintainers,
176 args.limit, args.dry_run, args.in_reply_to, args.thread,
179 def patchwork_status(branch, count, start, end, dest_branch, force,
181 """Check the status of patches in patchwork
183 This finds the series in patchwork using the Series-link tag, checks for new
184 comments and review tags, displays then and creates a new branch with the
188 branch (str): Branch to create patches from (None = current)
189 count (int): Number of patches to produce, or -1 to produce patches for
190 the current branch back to the upstream commit
191 start (int): Start partch to use (0=first / top of branch)
192 end (int): End patch to use (0=last one in series, 1=one before that,
194 dest_branch (str): Name of new branch to create with the updated tags
195 (None to not create a branch)
196 force (bool): With dest_branch, force overwriting an existing branch
197 show_comments (bool): True to display snippets from the comments
198 provided by reviewers
199 url (str): URL of patchwork server, e.g. 'https://patchwork.ozlabs.org'.
200 This is ignored if the series provides a Series-patchwork-url tag.
203 ValueError: if the branch has no Series-link value
206 # Work out how many patches to send if we can
207 count = (gitutil.CountCommitsToBranch(branch) - start)
209 series = patchstream.get_metadata(branch, start, count - end)
211 for cmt in series.commits:
213 print('%d warnings for %s:' % (len(cmt.warn), cmt.hash))
214 for warn in cmt.warn:
219 raise ValueError('Please fix warnings before running status')
220 links = series.get('links')
222 raise ValueError("Branch has no Series-links value")
224 # Find the link without a version number (we don't support versions yet)
225 found = [link for link in links.split() if not ':' in link]
227 raise ValueError('Series-links has no current version (without :)')
229 # Allow the series to override the URL
230 if 'patchwork_url' in series:
231 url = series.patchwork_url
233 # Import this here to avoid failing on other commands if the dependencies
235 from patman import status
236 status.check_patchwork_status(series, found[0], branch, dest_branch, force,