author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
Sat, 17 Feb 2007 04:50:03 -0200 | |
changeset 4099 | cf5580c16b13 |
parent 4005 | 656e06eebda7 |
child 4368 | 6af107c742bf |
permissions | -rw-r--r-- |
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1 |
# archival.py - revision archival for mercurial |
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2 |
# |
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3 |
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com> |
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# |
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5 |
# This software may be used and distributed according to the terms of |
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# the GNU General Public License, incorporated herein by reference. |
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|
3893 | 8 |
from i18n import _ |
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from node import * |
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import cStringIO, os, stat, tarfile, time, util, zipfile |
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|
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12 |
def tidyprefix(dest, prefix, suffixes): |
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'''choose prefix to use for names in archive. make sure prefix is |
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14 |
safe for consumers.''' |
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15 |
|
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if prefix: |
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17 |
prefix = prefix.replace('\\', '/') |
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else: |
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if not isinstance(dest, str): |
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raise ValueError('dest must be string if no prefix') |
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prefix = os.path.basename(dest) |
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lower = prefix.lower() |
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for sfx in suffixes: |
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if lower.endswith(sfx): |
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prefix = prefix[:-len(sfx)] |
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break |
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lpfx = os.path.normpath(util.localpath(prefix)) |
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prefix = util.pconvert(lpfx) |
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if not prefix.endswith('/'): |
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prefix += '/' |
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if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix: |
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raise util.Abort(_('archive prefix contains illegal components')) |
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return prefix |
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|
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class tarit: |
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'''write archive to tar file or stream. can write uncompressed, |
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or compress with gzip or bzip2.''' |
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def __init__(self, dest, prefix, mtime, kind=''): |
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self.prefix = tidyprefix(dest, prefix, ['.tar', '.tar.bz2', '.tar.gz', |
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'.tgz', '.tbz2']) |
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self.mtime = mtime |
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if isinstance(dest, str): |
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self.z = tarfile.open(dest, mode='w:'+kind) |
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else: |
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self.z = tarfile.open(mode='w|'+kind, fileobj=dest) |
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|
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def addfile(self, name, mode, data): |
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i = tarfile.TarInfo(self.prefix + name) |
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i.mtime = self.mtime |
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i.size = len(data) |
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i.mode = mode |
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self.z.addfile(i, cStringIO.StringIO(data)) |
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54 |
|
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def done(self): |
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self.z.close() |
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class tellable: |
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'''provide tell method for zipfile.ZipFile when writing to http |
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response file object.''' |
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def __init__(self, fp): |
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self.fp = fp |
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self.offset = 0 |
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def __getattr__(self, key): |
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return getattr(self.fp, key) |
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def write(self, s): |
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self.fp.write(s) |
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self.offset += len(s) |
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|
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def tell(self): |
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return self.offset |
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|
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class zipit: |
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'''write archive to zip file or stream. can write uncompressed, |
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parents:
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or compressed with deflate.''' |
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79 |
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def __init__(self, dest, prefix, mtime, compress=True): |
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self.prefix = tidyprefix(dest, prefix, ('.zip',)) |
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if not isinstance(dest, str): |
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try: |
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dest.tell() |
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except (AttributeError, IOError): |
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dest = tellable(dest) |
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self.z = zipfile.ZipFile(dest, 'w', |
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compress and zipfile.ZIP_DEFLATED or |
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89 |
zipfile.ZIP_STORED) |
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self.date_time = time.gmtime(mtime)[:6] |
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|
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def addfile(self, name, mode, data): |
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i = zipfile.ZipInfo(self.prefix + name, self.date_time) |
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i.compress_type = self.z.compression |
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i.flag_bits = 0x08 |
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# unzip will not honor unix file modes unless file creator is |
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# set to unix (id 3). |
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i.create_system = 3 |
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i.external_attr = (mode | stat.S_IFREG) << 16L |
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self.z.writestr(i, data) |
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|
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def done(self): |
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103 |
self.z.close() |
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|
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105 |
class fileit: |
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106 |
'''write archive as files in directory.''' |
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107 |
|
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108 |
def __init__(self, name, prefix, mtime): |
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109 |
if prefix: |
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110 |
raise util.Abort(_('cannot give prefix when archiving to files')) |
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111 |
self.basedir = name |
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112 |
self.dirs = {} |
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113 |
self.oflags = (os.O_CREAT | os.O_EXCL | os.O_WRONLY | |
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114 |
getattr(os, 'O_BINARY', 0) | |
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115 |
getattr(os, 'O_NOFOLLOW', 0)) |
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116 |
|
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117 |
def addfile(self, name, mode, data): |
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118 |
destfile = os.path.join(self.basedir, name) |
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119 |
destdir = os.path.dirname(destfile) |
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120 |
if destdir not in self.dirs: |
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121 |
if not os.path.isdir(destdir): |
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122 |
os.makedirs(destdir) |
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123 |
self.dirs[destdir] = 1 |
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124 |
os.fdopen(os.open(destfile, self.oflags, mode), 'wb').write(data) |
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125 |
|
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126 |
def done(self): |
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127 |
pass |
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128 |
|
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129 |
archivers = { |
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130 |
'files': fileit, |
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131 |
'tar': tarit, |
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132 |
'tbz2': lambda name, prefix, mtime: tarit(name, prefix, mtime, 'bz2'), |
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133 |
'tgz': lambda name, prefix, mtime: tarit(name, prefix, mtime, 'gz'), |
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134 |
'uzip': lambda name, prefix, mtime: zipit(name, prefix, mtime, False), |
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135 |
'zip': zipit, |
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136 |
} |
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137 |
|
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138 |
def archive(repo, dest, node, kind, decode=True, matchfn=None, |
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139 |
prefix=None, mtime=None): |
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140 |
'''create archive of repo as it was at node. |
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141 |
|
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142 |
dest can be name of directory, name of archive file, or file |
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143 |
object to write archive to. |
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144 |
|
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145 |
kind is type of archive to create. |
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146 |
|
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147 |
decode tells whether to put files through decode filters from |
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148 |
hgrc. |
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149 |
|
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150 |
matchfn is function to filter names of files to write to archive. |
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151 |
|
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152 |
prefix is name of path to put before every archive member.''' |
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153 |
|
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154 |
def write(name, mode, data): |
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155 |
if matchfn and not matchfn(name): return |
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156 |
if decode: |
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157 |
data = repo.wwritedata(name, data) |
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158 |
archiver.addfile(name, mode, data) |
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159 |
|
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160 |
ctx = repo.changectx(node) |
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161 |
archiver = archivers[kind](dest, prefix, mtime or ctx.date()[0]) |
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162 |
m = ctx.manifest() |
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163 |
items = m.items() |
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164 |
items.sort() |
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165 |
write('.hg_archival.txt', 0644, |
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166 |
'repo: %s\nnode: %s\n' % (hex(repo.changelog.node(0)), hex(node))) |
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167 |
for filename, filenode in items: |
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168 |
write(filename, m.execf(filename) and 0755 or 0644, |
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169 |
repo.file(filename).read(filenode)) |
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170 |
archiver.done() |