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 u_boot_pylib import terminal
20 """Do required setup before doing anything"""
23 def prepare_patches(col, branch, count, start, end, ignore_binary, signoff):
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.count_commits_to_branch(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.build(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.create_patches(
59 branch, start, to_do, ignore_binary, series, signoff)
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, use_tree):
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
80 use_tree (bool): If False we'll pass '--no-tree' to checkpatch.
83 bool: True if the patches had no errors, False if they did
85 # Do a few checks on the series
90 ok = checkpatch.check_patches(verbose, patch_files, use_tree)
96 def email_patches(col, series, cover_fname, patch_files, process_tags, its_a_go,
97 ignore_bad_tags, add_maintainers, get_maintainer_script, limit,
98 dry_run, in_reply_to, thread, smtp_server):
99 """Email patches to the recipients
101 This emails out the patches and cover letter using 'git send-email'. Each
102 patch is copied to recipients identified by the patch tag and output from
103 the get_maintainer.pl script. The cover letter is copied to all recipients
106 To make this work a CC file is created holding the recipients for each patch
107 and the cover letter. See the main program 'cc_cmd' for this logic.
110 col (terminal.Color): Colour output object
111 series (Series): Series object for this series (set of patches)
112 cover_fname (str): Filename of the cover letter as a string (None if
114 patch_files (list): List of patch filenames, each a string, e.g.
115 ['0001_xxx.patch', '0002_yyy.patch']
116 process_tags (bool): True to process subject tags in each patch, e.g.
117 for 'dm: spi: Add SPI support' this would be 'dm' and 'spi'. The
118 tags are looked up in the configured sendemail.aliasesfile and also
119 in ~/.patman (see README)
120 its_a_go (bool): True if we are going to actually send the patches,
121 False if the patches have errors and will not be sent unless
123 ignore_bad_tags (bool): True to just print a warning for unknown tags,
124 False to halt with an error
125 add_maintainers (bool): Run the get_maintainer.pl script for each patch
126 get_maintainer_script (str): The script used to retrieve which
128 limit (int): Limit on the number of people that can be cc'd on a single
129 patch or the cover letter (None if no limit)
130 dry_run (bool): Don't actually email the patches, just print out what
132 in_reply_to (str): If not None we'll pass this to git as --in-reply-to.
133 Should be a message ID that this is in reply to.
134 thread (bool): True to add --thread to git send-email (make all patches
135 reply to cover-letter or first patch in series)
136 smtp_server (str): SMTP server to use to send patches (None for default)
138 cc_file = series.MakeCcFile(process_tags, cover_fname, not ignore_bad_tags,
139 add_maintainers, limit, get_maintainer_script)
141 # Email the patches out (giving the user time to check / cancel)
144 cmd = gitutil.email_patches(
145 series, cover_fname, patch_files, dry_run, not ignore_bad_tags,
146 cc_file, in_reply_to=in_reply_to, thread=thread,
147 smtp_server=smtp_server)
149 print(col.build(col.RED, "Not sending emails due to errors/warnings"))
151 # For a dry run, just show our actions as a sanity check
153 series.ShowActions(patch_files, cmd, process_tags)
155 print(col.build(col.RED, "Email would not be sent"))
160 """Create, check and send patches by email
163 args (argparse.Namespace): Arguments to patman
166 col = terminal.Color()
167 series, cover_fname, patch_files = prepare_patches(
168 col, args.branch, args.count, args.start, args.end,
169 args.ignore_binary, args.add_signoff)
170 ok = check_patches(series, patch_files, args.check_patch,
171 args.verbose, args.check_patch_use_tree)
173 ok = ok and gitutil.check_suppress_cc_config()
175 its_a_go = ok or args.ignore_errors
177 col, series, cover_fname, patch_files, args.process_tags,
178 its_a_go, args.ignore_bad_tags, args.add_maintainers,
179 args.get_maintainer_script, args.limit, args.dry_run,
180 args.in_reply_to, args.thread, args.smtp_server)
182 def patchwork_status(branch, count, start, end, dest_branch, force,
184 """Check the status of patches in patchwork
186 This finds the series in patchwork using the Series-link tag, checks for new
187 comments and review tags, displays then and creates a new branch with the
191 branch (str): Branch to create patches from (None = current)
192 count (int): Number of patches to produce, or -1 to produce patches for
193 the current branch back to the upstream commit
194 start (int): Start partch to use (0=first / top of branch)
195 end (int): End patch to use (0=last one in series, 1=one before that,
197 dest_branch (str): Name of new branch to create with the updated tags
198 (None to not create a branch)
199 force (bool): With dest_branch, force overwriting an existing branch
200 show_comments (bool): True to display snippets from the comments
201 provided by reviewers
202 url (str): URL of patchwork server, e.g. 'https://patchwork.ozlabs.org'.
203 This is ignored if the series provides a Series-patchwork-url tag.
206 ValueError: if the branch has no Series-link value
209 # Work out how many patches to send if we can
210 count = (gitutil.count_commits_to_branch(branch) - start)
212 series = patchstream.get_metadata(branch, start, count - end)
214 for cmt in series.commits:
216 print('%d warnings for %s:' % (len(cmt.warn), cmt.hash))
217 for warn in cmt.warn:
222 raise ValueError('Please fix warnings before running status')
223 links = series.get('links')
225 raise ValueError("Branch has no Series-links value")
227 # Find the link without a version number (we don't support versions yet)
228 found = [link for link in links.split() if not ':' in link]
230 raise ValueError('Series-links has no current version (without :)')
232 # Allow the series to override the URL
233 if 'patchwork_url' in series:
234 url = series.patchwork_url
236 # Import this here to avoid failing on other commands if the dependencies
238 from patman import status
239 status.check_patchwork_status(series, found[0], branch, dest_branch, force,