blob: 3ea256de2e262cd0e34de4d9126fe95ee10e843c [file] [log] [blame]
Simon Glass0d24de92012-01-14 15:12:45 +00001# Copyright (c) 2011 The Chromium OS Authors.
2#
Wolfgang Denk1a459662013-07-08 09:37:19 +02003# SPDX-License-Identifier: GPL-2.0+
Simon Glass0d24de92012-01-14 15:12:45 +00004#
5
6import command
7import re
8import os
9import series
Simon Glass0d24de92012-01-14 15:12:45 +000010import subprocess
11import sys
12import terminal
13
Simon Glass757f64a2014-04-20 10:50:13 -060014import checkpatch
Simon Glass5f6a1c42012-12-15 10:42:07 +000015import settings
16
Simon Glass0d24de92012-01-14 15:12:45 +000017
18def CountCommitsToBranch():
19 """Returns number of commits between HEAD and the tracking branch.
20
21 This looks back to the tracking branch and works out the number of commits
22 since then.
23
24 Return:
25 Number of patches that exist on top of the branch
26 """
Andreas Bießmann23860602013-04-15 23:52:18 +000027 pipe = [['git', 'log', '--no-color', '--oneline', '--no-decorate',
28 '@{upstream}..'],
Simon Glass0d24de92012-01-14 15:12:45 +000029 ['wc', '-l']]
Simon Glassa10fd932012-12-15 10:42:04 +000030 stdout = command.RunPipe(pipe, capture=True, oneline=True).stdout
Simon Glass0d24de92012-01-14 15:12:45 +000031 patch_count = int(stdout)
32 return patch_count
33
Simon Glass5f6a1c42012-12-15 10:42:07 +000034def GetUpstream(git_dir, branch):
35 """Returns the name of the upstream for a branch
36
37 Args:
38 git_dir: Git directory containing repo
39 branch: Name of branch
40
41 Returns:
42 Name of upstream branch (e.g. 'upstream/master') or None if none
43 """
Simon Glasscce717a2013-05-08 08:06:08 +000044 try:
45 remote = command.OutputOneLine('git', '--git-dir', git_dir, 'config',
46 'branch.%s.remote' % branch)
47 merge = command.OutputOneLine('git', '--git-dir', git_dir, 'config',
48 'branch.%s.merge' % branch)
49 except:
50 return None
51
Simon Glass5f6a1c42012-12-15 10:42:07 +000052 if remote == '.':
53 return merge
54 elif remote and merge:
55 leaf = merge.split('/')[-1]
56 return '%s/%s' % (remote, leaf)
57 else:
58 raise ValueError, ("Cannot determine upstream branch for branch "
59 "'%s' remote='%s', merge='%s'" % (branch, remote, merge))
60
61
62def GetRangeInBranch(git_dir, branch, include_upstream=False):
63 """Returns an expression for the commits in the given branch.
64
65 Args:
66 git_dir: Directory containing git repo
67 branch: Name of branch
68 Return:
69 Expression in the form 'upstream..branch' which can be used to
Simon Glasscce717a2013-05-08 08:06:08 +000070 access the commits. If the branch does not exist, returns None.
Simon Glass5f6a1c42012-12-15 10:42:07 +000071 """
72 upstream = GetUpstream(git_dir, branch)
Simon Glasscce717a2013-05-08 08:06:08 +000073 if not upstream:
74 return None
Simon Glass5f6a1c42012-12-15 10:42:07 +000075 return '%s%s..%s' % (upstream, '~' if include_upstream else '', branch)
76
77def CountCommitsInBranch(git_dir, branch, include_upstream=False):
78 """Returns the number of commits in the given branch.
79
80 Args:
81 git_dir: Directory containing git repo
82 branch: Name of branch
83 Return:
Simon Glasscce717a2013-05-08 08:06:08 +000084 Number of patches that exist on top of the branch, or None if the
85 branch does not exist.
Simon Glass5f6a1c42012-12-15 10:42:07 +000086 """
87 range_expr = GetRangeInBranch(git_dir, branch, include_upstream)
Simon Glasscce717a2013-05-08 08:06:08 +000088 if not range_expr:
89 return None
Andreas Bießmann23860602013-04-15 23:52:18 +000090 pipe = [['git', '--git-dir', git_dir, 'log', '--oneline', '--no-decorate',
91 range_expr],
Simon Glass5f6a1c42012-12-15 10:42:07 +000092 ['wc', '-l']]
93 result = command.RunPipe(pipe, capture=True, oneline=True)
94 patch_count = int(result.stdout)
95 return patch_count
96
97def CountCommits(commit_range):
98 """Returns the number of commits in the given range.
99
100 Args:
101 commit_range: Range of commits to count (e.g. 'HEAD..base')
102 Return:
103 Number of patches that exist on top of the branch
104 """
Andreas Bießmann23860602013-04-15 23:52:18 +0000105 pipe = [['git', 'log', '--oneline', '--no-decorate', commit_range],
Simon Glass5f6a1c42012-12-15 10:42:07 +0000106 ['wc', '-l']]
107 stdout = command.RunPipe(pipe, capture=True, oneline=True).stdout
108 patch_count = int(stdout)
109 return patch_count
110
111def Checkout(commit_hash, git_dir=None, work_tree=None, force=False):
112 """Checkout the selected commit for this build
113
114 Args:
115 commit_hash: Commit hash to check out
116 """
117 pipe = ['git']
118 if git_dir:
119 pipe.extend(['--git-dir', git_dir])
120 if work_tree:
121 pipe.extend(['--work-tree', work_tree])
122 pipe.append('checkout')
123 if force:
124 pipe.append('-f')
125 pipe.append(commit_hash)
126 result = command.RunPipe([pipe], capture=True, raise_on_error=False)
127 if result.return_code != 0:
128 raise OSError, 'git checkout (%s): %s' % (pipe, result.stderr)
129
130def Clone(git_dir, output_dir):
131 """Checkout the selected commit for this build
132
133 Args:
134 commit_hash: Commit hash to check out
135 """
136 pipe = ['git', 'clone', git_dir, '.']
137 result = command.RunPipe([pipe], capture=True, cwd=output_dir)
138 if result.return_code != 0:
139 raise OSError, 'git clone: %s' % result.stderr
140
141def Fetch(git_dir=None, work_tree=None):
142 """Fetch from the origin repo
143
144 Args:
145 commit_hash: Commit hash to check out
146 """
147 pipe = ['git']
148 if git_dir:
149 pipe.extend(['--git-dir', git_dir])
150 if work_tree:
151 pipe.extend(['--work-tree', work_tree])
152 pipe.append('fetch')
153 result = command.RunPipe([pipe], capture=True)
154 if result.return_code != 0:
155 raise OSError, 'git fetch: %s' % result.stderr
156
Simon Glass0d24de92012-01-14 15:12:45 +0000157def CreatePatches(start, count, series):
158 """Create a series of patches from the top of the current branch.
159
160 The patch files are written to the current directory using
161 git format-patch.
162
163 Args:
164 start: Commit to start from: 0=HEAD, 1=next one, etc.
165 count: number of commits to include
166 Return:
167 Filename of cover letter
168 List of filenames of patch files
169 """
170 if series.get('version'):
171 version = '%s ' % series['version']
172 cmd = ['git', 'format-patch', '-M', '--signoff']
173 if series.get('cover'):
174 cmd.append('--cover-letter')
175 prefix = series.GetPatchPrefix()
176 if prefix:
177 cmd += ['--subject-prefix=%s' % prefix]
178 cmd += ['HEAD~%d..HEAD~%d' % (start + count, start)]
179
180 stdout = command.RunList(cmd)
181 files = stdout.splitlines()
182
183 # We have an extra file if there is a cover letter
184 if series.get('cover'):
185 return files[0], files[1:]
186 else:
187 return None, files
188
189def ApplyPatch(verbose, fname):
190 """Apply a patch with git am to test it
191
192 TODO: Convert these to use command, with stderr option
193
194 Args:
195 fname: filename of patch file to apply
196 """
Simon Glass757f64a2014-04-20 10:50:13 -0600197 col = terminal.Color()
Simon Glass0d24de92012-01-14 15:12:45 +0000198 cmd = ['git', 'am', fname]
199 pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE,
200 stderr=subprocess.PIPE)
201 stdout, stderr = pipe.communicate()
202 re_error = re.compile('^error: patch failed: (.+):(\d+)')
203 for line in stderr.splitlines():
204 if verbose:
205 print line
206 match = re_error.match(line)
207 if match:
Simon Glass757f64a2014-04-20 10:50:13 -0600208 print checkpatch.GetWarningMsg(col, 'warning', match.group(1),
209 int(match.group(2)), 'Patch failed')
Simon Glass0d24de92012-01-14 15:12:45 +0000210 return pipe.returncode == 0, stdout
211
212def ApplyPatches(verbose, args, start_point):
213 """Apply the patches with git am to make sure all is well
214
215 Args:
216 verbose: Print out 'git am' output verbatim
217 args: List of patch files to apply
218 start_point: Number of commits back from HEAD to start applying.
219 Normally this is len(args), but it can be larger if a start
220 offset was given.
221 """
222 error_count = 0
223 col = terminal.Color()
224
225 # Figure out our current position
226 cmd = ['git', 'name-rev', 'HEAD', '--name-only']
227 pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE)
228 stdout, stderr = pipe.communicate()
229 if pipe.returncode:
230 str = 'Could not find current commit name'
231 print col.Color(col.RED, str)
232 print stdout
233 return False
234 old_head = stdout.splitlines()[0]
235
236 # Checkout the required start point
237 cmd = ['git', 'checkout', 'HEAD~%d' % start_point]
238 pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE,
239 stderr=subprocess.PIPE)
240 stdout, stderr = pipe.communicate()
241 if pipe.returncode:
242 str = 'Could not move to commit before patch series'
243 print col.Color(col.RED, str)
244 print stdout, stderr
245 return False
246
247 # Apply all the patches
248 for fname in args:
249 ok, stdout = ApplyPatch(verbose, fname)
250 if not ok:
251 print col.Color(col.RED, 'git am returned errors for %s: will '
252 'skip this patch' % fname)
253 if verbose:
254 print stdout
255 error_count += 1
256 cmd = ['git', 'am', '--skip']
257 pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE)
258 stdout, stderr = pipe.communicate()
259 if pipe.returncode != 0:
260 print col.Color(col.RED, 'Unable to skip patch! Aborting...')
261 print stdout
262 break
263
264 # Return to our previous position
265 cmd = ['git', 'checkout', old_head]
266 pipe = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
267 stdout, stderr = pipe.communicate()
268 if pipe.returncode:
269 print col.Color(col.RED, 'Could not move back to head commit')
270 print stdout, stderr
271 return error_count == 0
272
Simon Glassa1318f72013-03-26 13:09:42 +0000273def BuildEmailList(in_list, tag=None, alias=None, raise_on_error=True):
Simon Glass0d24de92012-01-14 15:12:45 +0000274 """Build a list of email addresses based on an input list.
275
276 Takes a list of email addresses and aliases, and turns this into a list
277 of only email address, by resolving any aliases that are present.
278
279 If the tag is given, then each email address is prepended with this
280 tag and a space. If the tag starts with a minus sign (indicating a
281 command line parameter) then the email address is quoted.
282
283 Args:
284 in_list: List of aliases/email addresses
285 tag: Text to put before each address
Simon Glassa1318f72013-03-26 13:09:42 +0000286 alias: Alias dictionary
287 raise_on_error: True to raise an error when an alias fails to match,
288 False to just print a message.
Simon Glass0d24de92012-01-14 15:12:45 +0000289
290 Returns:
291 List of email addresses
292
293 >>> alias = {}
294 >>> alias['fred'] = ['f.bloggs@napier.co.nz']
295 >>> alias['john'] = ['j.bloggs@napier.co.nz']
296 >>> alias['mary'] = ['Mary Poppins <m.poppins@cloud.net>']
297 >>> alias['boys'] = ['fred', ' john']
298 >>> alias['all'] = ['fred ', 'john', ' mary ']
299 >>> BuildEmailList(['john', 'mary'], None, alias)
300 ['j.bloggs@napier.co.nz', 'Mary Poppins <m.poppins@cloud.net>']
301 >>> BuildEmailList(['john', 'mary'], '--to', alias)
302 ['--to "j.bloggs@napier.co.nz"', \
303'--to "Mary Poppins <m.poppins@cloud.net>"']
304 >>> BuildEmailList(['john', 'mary'], 'Cc', alias)
305 ['Cc j.bloggs@napier.co.nz', 'Cc Mary Poppins <m.poppins@cloud.net>']
306 """
307 quote = '"' if tag and tag[0] == '-' else ''
308 raw = []
309 for item in in_list:
Simon Glassa1318f72013-03-26 13:09:42 +0000310 raw += LookupEmail(item, alias, raise_on_error=raise_on_error)
Simon Glass0d24de92012-01-14 15:12:45 +0000311 result = []
312 for item in raw:
313 if not item in result:
314 result.append(item)
315 if tag:
316 return ['%s %s%s%s' % (tag, quote, email, quote) for email in result]
317 return result
318
Simon Glassa1318f72013-03-26 13:09:42 +0000319def EmailPatches(series, cover_fname, args, dry_run, raise_on_error, cc_fname,
Doug Anderson6d819922013-03-17 10:31:04 +0000320 self_only=False, alias=None, in_reply_to=None):
Simon Glass0d24de92012-01-14 15:12:45 +0000321 """Email a patch series.
322
323 Args:
324 series: Series object containing destination info
325 cover_fname: filename of cover letter
326 args: list of filenames of patch files
327 dry_run: Just return the command that would be run
Simon Glassa1318f72013-03-26 13:09:42 +0000328 raise_on_error: True to raise an error when an alias fails to match,
329 False to just print a message.
Simon Glass0d24de92012-01-14 15:12:45 +0000330 cc_fname: Filename of Cc file for per-commit Cc
331 self_only: True to just email to yourself as a test
Doug Anderson6d819922013-03-17 10:31:04 +0000332 in_reply_to: If set we'll pass this to git as --in-reply-to.
333 Should be a message ID that this is in reply to.
Simon Glass0d24de92012-01-14 15:12:45 +0000334
335 Returns:
336 Git command that was/would be run
337
Doug Andersona9700482012-11-26 15:21:40 +0000338 # For the duration of this doctest pretend that we ran patman with ./patman
339 >>> _old_argv0 = sys.argv[0]
340 >>> sys.argv[0] = './patman'
341
Simon Glass0d24de92012-01-14 15:12:45 +0000342 >>> alias = {}
343 >>> alias['fred'] = ['f.bloggs@napier.co.nz']
344 >>> alias['john'] = ['j.bloggs@napier.co.nz']
345 >>> alias['mary'] = ['m.poppins@cloud.net']
346 >>> alias['boys'] = ['fred', ' john']
347 >>> alias['all'] = ['fred ', 'john', ' mary ']
348 >>> alias[os.getenv('USER')] = ['this-is-me@me.com']
349 >>> series = series.Series()
350 >>> series.to = ['fred']
351 >>> series.cc = ['mary']
Simon Glassa1318f72013-03-26 13:09:42 +0000352 >>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
353 False, alias)
Simon Glass0d24de92012-01-14 15:12:45 +0000354 'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
355"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" cover p1 p2'
Simon Glassa1318f72013-03-26 13:09:42 +0000356 >>> EmailPatches(series, None, ['p1'], True, True, 'cc-fname', False, \
357 alias)
Simon Glass0d24de92012-01-14 15:12:45 +0000358 'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
359"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" p1'
360 >>> series.cc = ['all']
Simon Glassa1318f72013-03-26 13:09:42 +0000361 >>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
362 True, alias)
Simon Glass0d24de92012-01-14 15:12:45 +0000363 'git send-email --annotate --to "this-is-me@me.com" --cc-cmd "./patman \
364--cc-cmd cc-fname" cover p1 p2'
Simon Glassa1318f72013-03-26 13:09:42 +0000365 >>> EmailPatches(series, 'cover', ['p1', 'p2'], True, True, 'cc-fname', \
366 False, alias)
Simon Glass0d24de92012-01-14 15:12:45 +0000367 'git send-email --annotate --to "f.bloggs@napier.co.nz" --cc \
368"f.bloggs@napier.co.nz" --cc "j.bloggs@napier.co.nz" --cc \
369"m.poppins@cloud.net" --cc-cmd "./patman --cc-cmd cc-fname" cover p1 p2'
Doug Andersona9700482012-11-26 15:21:40 +0000370
371 # Restore argv[0] since we clobbered it.
372 >>> sys.argv[0] = _old_argv0
Simon Glass0d24de92012-01-14 15:12:45 +0000373 """
Simon Glassa1318f72013-03-26 13:09:42 +0000374 to = BuildEmailList(series.get('to'), '--to', alias, raise_on_error)
Simon Glass0d24de92012-01-14 15:12:45 +0000375 if not to:
376 print ("No recipient, please add something like this to a commit\n"
377 "Series-to: Fred Bloggs <f.blogs@napier.co.nz>")
378 return
Simon Glassa1318f72013-03-26 13:09:42 +0000379 cc = BuildEmailList(series.get('cc'), '--cc', alias, raise_on_error)
Simon Glass0d24de92012-01-14 15:12:45 +0000380 if self_only:
Simon Glassa1318f72013-03-26 13:09:42 +0000381 to = BuildEmailList([os.getenv('USER')], '--to', alias, raise_on_error)
Simon Glass0d24de92012-01-14 15:12:45 +0000382 cc = []
383 cmd = ['git', 'send-email', '--annotate']
Doug Anderson6d819922013-03-17 10:31:04 +0000384 if in_reply_to:
385 cmd.append('--in-reply-to="%s"' % in_reply_to)
386
Simon Glass0d24de92012-01-14 15:12:45 +0000387 cmd += to
388 cmd += cc
389 cmd += ['--cc-cmd', '"%s --cc-cmd %s"' % (sys.argv[0], cc_fname)]
390 if cover_fname:
391 cmd.append(cover_fname)
392 cmd += args
393 str = ' '.join(cmd)
394 if not dry_run:
395 os.system(str)
396 return str
397
398
Simon Glassa1318f72013-03-26 13:09:42 +0000399def LookupEmail(lookup_name, alias=None, raise_on_error=True, level=0):
Simon Glass0d24de92012-01-14 15:12:45 +0000400 """If an email address is an alias, look it up and return the full name
401
402 TODO: Why not just use git's own alias feature?
403
404 Args:
405 lookup_name: Alias or email address to look up
Simon Glassa1318f72013-03-26 13:09:42 +0000406 alias: Dictionary containing aliases (None to use settings default)
407 raise_on_error: True to raise an error when an alias fails to match,
408 False to just print a message.
Simon Glass0d24de92012-01-14 15:12:45 +0000409
410 Returns:
411 tuple:
412 list containing a list of email addresses
413
414 Raises:
415 OSError if a recursive alias reference was found
416 ValueError if an alias was not found
417
418 >>> alias = {}
419 >>> alias['fred'] = ['f.bloggs@napier.co.nz']
420 >>> alias['john'] = ['j.bloggs@napier.co.nz']
421 >>> alias['mary'] = ['m.poppins@cloud.net']
422 >>> alias['boys'] = ['fred', ' john', 'f.bloggs@napier.co.nz']
423 >>> alias['all'] = ['fred ', 'john', ' mary ']
424 >>> alias['loop'] = ['other', 'john', ' mary ']
425 >>> alias['other'] = ['loop', 'john', ' mary ']
426 >>> LookupEmail('mary', alias)
427 ['m.poppins@cloud.net']
428 >>> LookupEmail('arthur.wellesley@howe.ro.uk', alias)
429 ['arthur.wellesley@howe.ro.uk']
430 >>> LookupEmail('boys', alias)
431 ['f.bloggs@napier.co.nz', 'j.bloggs@napier.co.nz']
432 >>> LookupEmail('all', alias)
433 ['f.bloggs@napier.co.nz', 'j.bloggs@napier.co.nz', 'm.poppins@cloud.net']
434 >>> LookupEmail('odd', alias)
435 Traceback (most recent call last):
436 ...
437 ValueError: Alias 'odd' not found
438 >>> LookupEmail('loop', alias)
439 Traceback (most recent call last):
440 ...
441 OSError: Recursive email alias at 'other'
Simon Glassa1318f72013-03-26 13:09:42 +0000442 >>> LookupEmail('odd', alias, raise_on_error=False)
443 \033[1;31mAlias 'odd' not found\033[0m
444 []
445 >>> # In this case the loop part will effectively be ignored.
446 >>> LookupEmail('loop', alias, raise_on_error=False)
447 \033[1;31mRecursive email alias at 'other'\033[0m
448 \033[1;31mRecursive email alias at 'john'\033[0m
449 \033[1;31mRecursive email alias at 'mary'\033[0m
450 ['j.bloggs@napier.co.nz', 'm.poppins@cloud.net']
Simon Glass0d24de92012-01-14 15:12:45 +0000451 """
452 if not alias:
453 alias = settings.alias
454 lookup_name = lookup_name.strip()
455 if '@' in lookup_name: # Perhaps a real email address
456 return [lookup_name]
457
458 lookup_name = lookup_name.lower()
Simon Glassa1318f72013-03-26 13:09:42 +0000459 col = terminal.Color()
Simon Glass0d24de92012-01-14 15:12:45 +0000460
461 out_list = []
Simon Glassa1318f72013-03-26 13:09:42 +0000462 if level > 10:
463 msg = "Recursive email alias at '%s'" % lookup_name
464 if raise_on_error:
465 raise OSError, msg
466 else:
467 print col.Color(col.RED, msg)
468 return out_list
469
Simon Glass0d24de92012-01-14 15:12:45 +0000470 if lookup_name:
471 if not lookup_name in alias:
Simon Glassa1318f72013-03-26 13:09:42 +0000472 msg = "Alias '%s' not found" % lookup_name
473 if raise_on_error:
474 raise ValueError, msg
475 else:
476 print col.Color(col.RED, msg)
477 return out_list
Simon Glass0d24de92012-01-14 15:12:45 +0000478 for item in alias[lookup_name]:
Simon Glassa1318f72013-03-26 13:09:42 +0000479 todo = LookupEmail(item, alias, raise_on_error, level + 1)
Simon Glass0d24de92012-01-14 15:12:45 +0000480 for new_item in todo:
481 if not new_item in out_list:
482 out_list.append(new_item)
483
484 #print "No match for alias '%s'" % lookup_name
485 return out_list
486
487def GetTopLevel():
488 """Return name of top-level directory for this git repo.
489
490 Returns:
491 Full path to git top-level directory
492
493 This test makes sure that we are running tests in the right subdir
494
Doug Andersona9700482012-11-26 15:21:40 +0000495 >>> os.path.realpath(os.path.dirname(__file__)) == \
496 os.path.join(GetTopLevel(), 'tools', 'patman')
Simon Glass0d24de92012-01-14 15:12:45 +0000497 True
498 """
499 return command.OutputOneLine('git', 'rev-parse', '--show-toplevel')
500
501def GetAliasFile():
502 """Gets the name of the git alias file.
503
504 Returns:
505 Filename of git alias file, or None if none
506 """
Simon Glassdc191502012-12-15 10:42:05 +0000507 fname = command.OutputOneLine('git', 'config', 'sendemail.aliasesfile',
508 raise_on_error=False)
Simon Glass0d24de92012-01-14 15:12:45 +0000509 if fname:
510 fname = os.path.join(GetTopLevel(), fname.strip())
511 return fname
512
Vikram Narayanan87d65552012-05-23 09:01:06 +0000513def GetDefaultUserName():
514 """Gets the user.name from .gitconfig file.
515
516 Returns:
517 User name found in .gitconfig file, or None if none
518 """
519 uname = command.OutputOneLine('git', 'config', '--global', 'user.name')
520 return uname
521
522def GetDefaultUserEmail():
523 """Gets the user.email from the global .gitconfig file.
524
525 Returns:
526 User's email found in .gitconfig file, or None if none
527 """
528 uemail = command.OutputOneLine('git', 'config', '--global', 'user.email')
529 return uemail
530
Simon Glass0d24de92012-01-14 15:12:45 +0000531def Setup():
532 """Set up git utils, by reading the alias files."""
Simon Glass0d24de92012-01-14 15:12:45 +0000533 # Check for a git alias file also
534 alias_fname = GetAliasFile()
535 if alias_fname:
536 settings.ReadGitAliases(alias_fname)
537
Simon Glass5f6a1c42012-12-15 10:42:07 +0000538def GetHead():
539 """Get the hash of the current HEAD
540
541 Returns:
542 Hash of HEAD
543 """
544 return command.OutputOneLine('git', 'show', '-s', '--pretty=format:%H')
545
Simon Glass0d24de92012-01-14 15:12:45 +0000546if __name__ == "__main__":
547 import doctest
548
549 doctest.testmod()