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@@ -1,160 +1,161 b'' | |||||
1 | # repair.py - functions for repository repair for mercurial |
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1 | # repair.py - functions for repository repair for mercurial | |
2 | # |
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2 | # | |
3 | # Copyright 2005, 2006 Chris Mason <mason@suse.com> |
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3 | # Copyright 2005, 2006 Chris Mason <mason@suse.com> | |
4 | # Copyright 2007 Matt Mackall |
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4 | # Copyright 2007 Matt Mackall | |
5 | # |
|
5 | # | |
6 | # This software may be used and distributed according to the terms of the |
|
6 | # This software may be used and distributed according to the terms of the | |
7 | # GNU General Public License version 2 or any later version. |
|
7 | # GNU General Public License version 2 or any later version. | |
8 |
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8 | |||
9 | from mercurial import changegroup, bookmarks, phases |
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9 | from mercurial import changegroup, bookmarks, phases | |
10 | from mercurial.node import short |
|
10 | from mercurial.node import short | |
11 | from mercurial.i18n import _ |
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11 | from mercurial.i18n import _ | |
12 | import os |
|
12 | import os | |
13 |
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13 | |||
14 | def _bundle(repo, bases, heads, node, suffix, compress=True): |
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14 | def _bundle(repo, bases, heads, node, suffix, compress=True): | |
15 | """create a bundle with the specified revisions as a backup""" |
|
15 | """create a bundle with the specified revisions as a backup""" | |
16 | cg = repo.changegroupsubset(bases, heads, 'strip') |
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16 | cg = repo.changegroupsubset(bases, heads, 'strip') | |
17 | backupdir = repo.join("strip-backup") |
|
17 | backupdir = repo.join("strip-backup") | |
18 | if not os.path.isdir(backupdir): |
|
18 | if not os.path.isdir(backupdir): | |
19 | os.mkdir(backupdir) |
|
19 | os.mkdir(backupdir) | |
20 | name = os.path.join(backupdir, "%s-%s.hg" % (short(node), suffix)) |
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20 | name = os.path.join(backupdir, "%s-%s.hg" % (short(node), suffix)) | |
21 | if compress: |
|
21 | if compress: | |
22 | bundletype = "HG10BZ" |
|
22 | bundletype = "HG10BZ" | |
23 | else: |
|
23 | else: | |
24 | bundletype = "HG10UN" |
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24 | bundletype = "HG10UN" | |
25 | return changegroup.writebundle(cg, name, bundletype) |
|
25 | return changegroup.writebundle(cg, name, bundletype) | |
26 |
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26 | |||
27 | def _collectfiles(repo, striprev): |
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27 | def _collectfiles(repo, striprev): | |
28 | """find out the filelogs affected by the strip""" |
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28 | """find out the filelogs affected by the strip""" | |
29 | files = set() |
|
29 | files = set() | |
30 |
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30 | |||
31 | for x in xrange(striprev, len(repo)): |
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31 | for x in xrange(striprev, len(repo)): | |
32 | files.update(repo[x].files()) |
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32 | files.update(repo[x].files()) | |
33 |
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33 | |||
34 | return sorted(files) |
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34 | return sorted(files) | |
35 |
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35 | |||
36 | def _collectbrokencsets(repo, files, striprev): |
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36 | def _collectbrokencsets(repo, files, striprev): | |
37 | """return the changesets which will be broken by the truncation""" |
|
37 | """return the changesets which will be broken by the truncation""" | |
38 | s = set() |
|
38 | s = set() | |
39 | def collectone(revlog): |
|
39 | def collectone(revlog): | |
40 | links = (revlog.linkrev(i) for i in revlog) |
|
40 | links = (revlog.linkrev(i) for i in revlog) | |
41 | # find the truncation point of the revlog |
|
41 | # find the truncation point of the revlog | |
42 | for lrev in links: |
|
42 | for lrev in links: | |
43 | if lrev >= striprev: |
|
43 | if lrev >= striprev: | |
44 | break |
|
44 | break | |
45 | # see if any revision after this point has a linkrev |
|
45 | # see if any revision after this point has a linkrev | |
46 | # less than striprev (those will be broken by strip) |
|
46 | # less than striprev (those will be broken by strip) | |
47 | for lrev in links: |
|
47 | for lrev in links: | |
48 | if lrev < striprev: |
|
48 | if lrev < striprev: | |
49 | s.add(lrev) |
|
49 | s.add(lrev) | |
50 |
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50 | |||
51 | collectone(repo.manifest) |
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51 | collectone(repo.manifest) | |
52 | for fname in files: |
|
52 | for fname in files: | |
53 | collectone(repo.file(fname)) |
|
53 | collectone(repo.file(fname)) | |
54 |
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54 | |||
55 | return s |
|
55 | return s | |
56 |
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56 | |||
57 | def strip(ui, repo, node, backup="all"): |
|
57 | def strip(ui, repo, node, backup="all"): | |
58 | cl = repo.changelog |
|
58 | cl = repo.changelog | |
59 | # TODO delete the undo files, and handle undo of merge sets |
|
59 | # TODO delete the undo files, and handle undo of merge sets | |
60 | striprev = cl.rev(node) |
|
60 | striprev = cl.rev(node) | |
61 |
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61 | |||
62 | keeppartialbundle = backup == 'strip' |
|
62 | keeppartialbundle = backup == 'strip' | |
63 |
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63 | |||
64 | # Some revisions with rev > striprev may not be descendants of striprev. |
|
64 | # Some revisions with rev > striprev may not be descendants of striprev. | |
65 | # We have to find these revisions and put them in a bundle, so that |
|
65 | # We have to find these revisions and put them in a bundle, so that | |
66 | # we can restore them after the truncations. |
|
66 | # we can restore them after the truncations. | |
67 | # To create the bundle we use repo.changegroupsubset which requires |
|
67 | # To create the bundle we use repo.changegroupsubset which requires | |
68 | # the list of heads and bases of the set of interesting revisions. |
|
68 | # the list of heads and bases of the set of interesting revisions. | |
69 | # (head = revision in the set that has no descendant in the set; |
|
69 | # (head = revision in the set that has no descendant in the set; | |
70 | # base = revision in the set that has no ancestor in the set) |
|
70 | # base = revision in the set that has no ancestor in the set) | |
71 | tostrip = set(cl.descendants(striprev)) |
|
71 | tostrip = set(cl.descendants(striprev)) | |
72 | tostrip.add(striprev) |
|
72 | tostrip.add(striprev) | |
73 |
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73 | |||
74 | files = _collectfiles(repo, striprev) |
|
74 | files = _collectfiles(repo, striprev) | |
75 | saverevs = _collectbrokencsets(repo, files, striprev) |
|
75 | saverevs = _collectbrokencsets(repo, files, striprev) | |
76 |
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76 | |||
77 | # compute heads |
|
77 | # compute heads | |
78 | saveheads = set(saverevs) |
|
78 | saveheads = set(saverevs) | |
79 | for r in xrange(striprev + 1, len(cl)): |
|
79 | for r in xrange(striprev + 1, len(cl)): | |
80 | if r not in tostrip: |
|
80 | if r not in tostrip: | |
81 | saverevs.add(r) |
|
81 | saverevs.add(r) | |
82 | saveheads.difference_update(cl.parentrevs(r)) |
|
82 | saveheads.difference_update(cl.parentrevs(r)) | |
83 | saveheads.add(r) |
|
83 | saveheads.add(r) | |
84 | saveheads = [cl.node(r) for r in saveheads] |
|
84 | saveheads = [cl.node(r) for r in saveheads] | |
85 |
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85 | |||
86 | # compute base nodes |
|
86 | # compute base nodes | |
87 | if saverevs: |
|
87 | if saverevs: | |
88 | descendants = set(cl.descendants(*saverevs)) |
|
88 | descendants = set(cl.descendants(*saverevs)) | |
89 | saverevs.difference_update(descendants) |
|
89 | saverevs.difference_update(descendants) | |
90 | savebases = [cl.node(r) for r in saverevs] |
|
90 | savebases = [cl.node(r) for r in saverevs] | |
91 |
|
91 | |||
92 | bm = repo._bookmarks |
|
92 | bm = repo._bookmarks | |
93 | updatebm = [] |
|
93 | updatebm = [] | |
94 | for m in bm: |
|
94 | for m in bm: | |
95 | rev = repo[bm[m]].rev() |
|
95 | rev = repo[bm[m]].rev() | |
96 | if rev in tostrip: |
|
96 | if rev in tostrip: | |
97 | updatebm.append(m) |
|
97 | updatebm.append(m) | |
98 |
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98 | |||
99 | # create a changegroup for all the branches we need to keep |
|
99 | # create a changegroup for all the branches we need to keep | |
100 | backupfile = None |
|
100 | backupfile = None | |
101 | if backup == "all": |
|
101 | if backup == "all": | |
102 | backupfile = _bundle(repo, [node], cl.heads(), node, 'backup') |
|
102 | backupfile = _bundle(repo, [node], cl.heads(), node, 'backup') | |
103 | repo.ui.status(_("saved backup bundle to %s\n") % backupfile) |
|
103 | repo.ui.status(_("saved backup bundle to %s\n") % backupfile) | |
104 | if saveheads or savebases: |
|
104 | if saveheads or savebases: | |
105 | # do not compress partial bundle if we remove it from disk later |
|
105 | # do not compress partial bundle if we remove it from disk later | |
106 | chgrpfile = _bundle(repo, savebases, saveheads, node, 'temp', |
|
106 | chgrpfile = _bundle(repo, savebases, saveheads, node, 'temp', | |
107 | compress=keeppartialbundle) |
|
107 | compress=keeppartialbundle) | |
108 |
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108 | |||
109 | mfst = repo.manifest |
|
109 | mfst = repo.manifest | |
110 |
|
110 | |||
111 | tr = repo.transaction("strip") |
|
111 | tr = repo.transaction("strip") | |
112 | offset = len(tr.entries) |
|
112 | offset = len(tr.entries) | |
113 |
|
113 | |||
114 | try: |
|
114 | try: | |
115 | tr.startgroup() |
|
115 | tr.startgroup() | |
116 | cl.strip(striprev, tr) |
|
116 | cl.strip(striprev, tr) | |
117 | mfst.strip(striprev, tr) |
|
117 | mfst.strip(striprev, tr) | |
118 | for fn in files: |
|
118 | for fn in files: | |
119 | repo.file(fn).strip(striprev, tr) |
|
119 | repo.file(fn).strip(striprev, tr) | |
120 | tr.endgroup() |
|
120 | tr.endgroup() | |
121 |
|
121 | |||
122 | try: |
|
122 | try: | |
123 | for i in xrange(offset, len(tr.entries)): |
|
123 | for i in xrange(offset, len(tr.entries)): | |
124 | file, troffset, ignore = tr.entries[i] |
|
124 | file, troffset, ignore = tr.entries[i] | |
125 | repo.sopener(file, 'a').truncate(troffset) |
|
125 | repo.sopener(file, 'a').truncate(troffset) | |
126 | tr.close() |
|
126 | tr.close() | |
127 | except: |
|
127 | except: | |
128 | tr.abort() |
|
128 | tr.abort() | |
129 | raise |
|
129 | raise | |
130 |
|
130 | |||
131 | if saveheads or savebases: |
|
131 | if saveheads or savebases: | |
132 | ui.note(_("adding branch\n")) |
|
132 | ui.note(_("adding branch\n")) | |
133 | f = open(chgrpfile, "rb") |
|
133 | f = open(chgrpfile, "rb") | |
134 | gen = changegroup.readbundle(f, chgrpfile) |
|
134 | gen = changegroup.readbundle(f, chgrpfile) | |
135 | if not repo.ui.verbose: |
|
135 | if not repo.ui.verbose: | |
136 | # silence internal shuffling chatter |
|
136 | # silence internal shuffling chatter | |
137 | repo.ui.pushbuffer() |
|
137 | repo.ui.pushbuffer() | |
138 | repo.addchangegroup(gen, 'strip', 'bundle:' + chgrpfile, True) |
|
138 | repo.addchangegroup(gen, 'strip', 'bundle:' + chgrpfile, True) | |
139 | if not repo.ui.verbose: |
|
139 | if not repo.ui.verbose: | |
140 | repo.ui.popbuffer() |
|
140 | repo.ui.popbuffer() | |
141 | f.close() |
|
141 | f.close() | |
142 | if not keeppartialbundle: |
|
142 | if not keeppartialbundle: | |
143 | os.unlink(chgrpfile) |
|
143 | os.unlink(chgrpfile) | |
144 |
|
144 | |||
145 | for m in updatebm: |
|
145 | for m in updatebm: | |
146 | bm[m] = repo['.'].node() |
|
146 | bm[m] = repo['.'].node() | |
147 | bookmarks.write(repo) |
|
147 | bookmarks.write(repo) | |
148 | # remove potential unknown phase |
|
|||
149 | # XXX using to_strip data would be faster |
|
|||
150 | phases.filterunknown(repo) |
|
|||
151 | except: |
|
148 | except: | |
152 | if backupfile: |
|
149 | if backupfile: | |
153 | ui.warn(_("strip failed, full bundle stored in '%s'\n") |
|
150 | ui.warn(_("strip failed, full bundle stored in '%s'\n") | |
154 | % backupfile) |
|
151 | % backupfile) | |
155 | elif saveheads: |
|
152 | elif saveheads: | |
156 | ui.warn(_("strip failed, partial bundle stored in '%s'\n") |
|
153 | ui.warn(_("strip failed, partial bundle stored in '%s'\n") | |
157 | % chgrpfile) |
|
154 | % chgrpfile) | |
158 | raise |
|
155 | raise | |
159 |
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156 | |||
160 | repo.destroyed() |
|
157 | repo.destroyed() | |
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158 | ||||
|
159 | # remove potential unknown phase | |||
|
160 | # XXX using to_strip data would be faster | |||
|
161 | phases.filterunknown(repo) |
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