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annotate mercurial/rewriteutil.py @ 47016:8ad2f43fe37b

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rewriteutil: add devel warning if precheck is called with contexts I'm trying to upstream parts from the evolve extension. This check exists there. Differential Revision: https://phab.mercurial-scm.org/D10515
author Martin von Zweigbergk <martinvonz@google.com>
date Thu, 11 Feb 2021 15:02:57 -0800
parents 7001f92e0ee9
children 7a90fddb13b0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # rewriteutil.py - utility functions for rewriting changesets
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2 #
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3 # Copyright 2017 Octobus <contact@octobus.net>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2 or any later version.
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7
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8 from __future__ import absolute_import
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9
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10 import re
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11
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12 from .i18n import _
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13 from .node import (
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14 hex,
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15 nullrev,
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16 )
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17
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18 from . import (
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19 error,
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20 obsolete,
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21 obsutil,
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22 revset,
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23 scmutil,
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24 util,
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25 )
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26
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28 NODE_RE = re.compile(br'\b[0-9a-f]{6,64}\b')
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29
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30
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31 def precheck(repo, revs, action=b'rewrite'):
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32 """check if revs can be rewritten
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33 action is used to control the error message.
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34
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35 Make sure this function is called after taking the lock.
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36 """
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37 if nullrev in revs:
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38 msg = _(b"cannot %s the null revision") % action
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39 hint = _(b"no changeset checked out")
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40 raise error.InputError(msg, hint=hint)
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41
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42 if any(util.safehasattr(r, 'rev') for r in revs):
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43 repo.ui.develwarn(b"rewriteutil.precheck called with ctx not revs")
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44 revs = (r.rev() for r in revs)
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45
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46 if len(repo[None].parents()) > 1:
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47 raise error.StateError(_(b"cannot %s while merging") % action)
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48
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49 publicrevs = repo.revs(b'%ld and public()', revs)
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50 if publicrevs:
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51 msg = _(b"cannot %s public changesets") % action
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52 hint = _(b"see 'hg help phases' for details")
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53 raise error.InputError(msg, hint=hint)
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54
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55 newunstable = disallowednewunstable(repo, revs)
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56 if newunstable:
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57 raise error.InputError(_(b"cannot %s changeset with children") % action)
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58
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59
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60 def disallowednewunstable(repo, revs):
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61 """Checks whether editing the revs will create new unstable changesets and
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62 are we allowed to create them.
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63
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64 To allow new unstable changesets, set the config:
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65 `experimental.evolution.allowunstable=True`
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66 """
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67 allowunstable = obsolete.isenabled(repo, obsolete.allowunstableopt)
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68 if allowunstable:
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69 return revset.baseset()
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70 return repo.revs(b"(%ld::) - %ld", revs, revs)
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71
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72
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73 def skip_empty_successor(ui, command):
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74 empty_successor = ui.config(b'rewrite', b'empty-successor')
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75 if empty_successor == b'skip':
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76 return True
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77 elif empty_successor == b'keep':
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78 return False
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79 else:
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80 raise error.ConfigError(
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81 _(
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82 b"%s doesn't know how to handle config "
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83 b"rewrite.empty-successor=%s (only 'skip' and 'keep' are "
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84 b"supported)"
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85 )
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86 % (command, empty_successor)
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87 )
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88
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89
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90 def update_hash_refs(repo, commitmsg, pending=None):
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91 """Replace all obsolete commit hashes in the message with the current hash.
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92
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93 If the obsolete commit was split or is divergent, the hash is not replaced
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94 as there's no way to know which successor to choose.
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95
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96 For commands that update a series of commits in the current transaction, the
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97 new obsolete markers can be considered by setting ``pending`` to a mapping
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98 of ``pending[oldnode] = [successor_node1, successor_node2,..]``.
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99 """
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100 if not pending:
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101 pending = {}
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102 cache = {}
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103 hashes = re.findall(NODE_RE, commitmsg)
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104 unfi = repo.unfiltered()
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105 for h in hashes:
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106 fullnode = scmutil.resolvehexnodeidprefix(unfi, h)
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107 if fullnode is None:
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108 continue
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109 ctx = unfi[fullnode]
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110 if not ctx.obsolete():
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111 successors = pending.get(fullnode)
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112 if successors is None:
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113 continue
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114 # obsutil.successorssets() returns a list of list of nodes
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115 successors = [successors]
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116 else:
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117 successors = obsutil.successorssets(repo, ctx.node(), cache=cache)
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118
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119 # We can't make any assumptions about how to update the hash if the
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120 # cset in question was split or diverged.
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121 if len(successors) == 1 and len(successors[0]) == 1:
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122 successor = successors[0][0]
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123 if successor is not None:
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124 newhash = hex(successor)
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parents: 45427
diff changeset
125 commitmsg = commitmsg.replace(h, newhash[: len(h)])
3d68b47e461b rewriteutil: handle dropped commits when updating description hashes
Matt Harbison <matt_harbison@yahoo.com>
parents: 45427
diff changeset
126 else:
3d68b47e461b rewriteutil: handle dropped commits when updating description hashes
Matt Harbison <matt_harbison@yahoo.com>
parents: 45427
diff changeset
127 repo.ui.note(
3d68b47e461b rewriteutil: handle dropped commits when updating description hashes
Matt Harbison <matt_harbison@yahoo.com>
parents: 45427
diff changeset
128 _(
3d68b47e461b rewriteutil: handle dropped commits when updating description hashes
Matt Harbison <matt_harbison@yahoo.com>
parents: 45427
diff changeset
129 b'The stale commit message reference to %s could '
3d68b47e461b rewriteutil: handle dropped commits when updating description hashes
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parents: 45427
diff changeset
130 b'not be updated\n(The referenced commit was dropped)\n'
3d68b47e461b rewriteutil: handle dropped commits when updating description hashes
Matt Harbison <matt_harbison@yahoo.com>
parents: 45427
diff changeset
131 )
3d68b47e461b rewriteutil: handle dropped commits when updating description hashes
Matt Harbison <matt_harbison@yahoo.com>
parents: 45427
diff changeset
132 % h
3d68b47e461b rewriteutil: handle dropped commits when updating description hashes
Matt Harbison <matt_harbison@yahoo.com>
parents: 45427
diff changeset
133 )
45424
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
134 else:
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
135 repo.ui.note(
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
136 _(
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
137 b'The stale commit message reference to %s could '
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
138 b'not be updated\n'
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
139 )
45427
78861610ded8 rewriteutil: relax the sha1 hash references to handle future hash types
Matt Harbison <matt_harbison@yahoo.com>
parents: 45425
diff changeset
140 % h
45424
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
141 )
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
142
0a57ef4b3bdb rewriteutil: extract evolve code used to replace obsolete hashes in commits
Matt Harbison <matt_harbison@yahoo.com>
parents: 45122
diff changeset
143 return commitmsg