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Jérome Perrin
slapos.recipe.build.saved
Commits
e3e15b9f
Commit
e3e15b9f
authored
Mar 08, 2017
by
Kazuhiko Shiozaki
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downloadunpacked: extract symlinks in a tar archive as symlinks.
parent
af85beec
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+56
-1
slapos/recipe/downloadunpacked.py
slapos/recipe/downloadunpacked.py
+56
-1
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slapos/recipe/downloadunpacked.py
View file @
e3e15b9f
...
@@ -27,6 +27,7 @@
...
@@ -27,6 +27,7 @@
import
os
import
os
import
logging
import
logging
import
shutil
import
shutil
import
tarfile
import
zc.buildout
import
zc.buildout
import
tempfile
import
tempfile
import
setuptools
import
setuptools
...
@@ -80,7 +81,11 @@ class Recipe:
...
@@ -80,7 +81,11 @@ class Recipe:
md5sum
=
self
.
options
.
get
(
'md5sum'
))
md5sum
=
self
.
options
.
get
(
'md5sum'
))
extract_dir
=
tempfile
.
mkdtemp
(
self
.
name
)
extract_dir
=
tempfile
.
mkdtemp
(
self
.
name
)
self
.
logger
.
debug
(
'Created working directory %r'
%
extract_dir
)
self
.
logger
.
debug
(
'Created working directory %r'
%
extract_dir
)
setuptools
.
archive_util
.
unpack_archive
(
path
,
extract_dir
)
try
:
patch_archive_util
()
setuptools
.
archive_util
.
unpack_archive
(
path
,
extract_dir
)
finally
:
unpatch_archive_util
()
# Delete destination directory if exist
# Delete destination directory if exist
if
os
.
path
.
exists
(
self
.
destination
):
if
os
.
path
.
exists
(
self
.
destination
):
...
@@ -112,3 +117,53 @@ class Recipe:
...
@@ -112,3 +117,53 @@ class Recipe:
def
update
(
self
):
def
update
(
self
):
pass
pass
# Monkey patch to keep symlinks in tarfile
def
unpack_tarfile_patched
(
filename
,
extract_dir
,
progress_filter
=
setuptools
.
archive_util
.
default_filter
):
"""Unpack tar/tar.gz/tar.bz2 `filename` to `extract_dir`
Raises ``UnrecognizedFormat`` if `filename` is not a tarfile (as determined
by ``tarfile.open()``). See ``unpack_archive()`` for an explanation
of the `progress_filter` argument.
"""
try
:
tarobj
=
tarfile
.
open
(
filename
)
except
tarfile
.
TarError
:
raise
setuptools
.
archive_util
.
UnrecognizedFormat
(
"%s is not a compressed or uncompressed tar file"
%
(
filename
,)
)
with
setuptools
.
archive_util
.
contextlib
.
closing
(
tarobj
):
# don't do any chowning!
tarobj
.
chown
=
lambda
*
args
:
None
for
member
in
tarobj
:
name
=
member
.
name
# don't extract absolute paths or ones with .. in them
if
not
name
.
startswith
(
'/'
)
and
'..'
not
in
name
.
split
(
'/'
):
prelim_dst
=
os
.
path
.
join
(
extract_dir
,
*
name
.
split
(
'/'
))
if
member
is
not
None
and
(
member
.
isfile
()
or
member
.
isdir
()
or
member
.
islnk
()
or
member
.
issym
()):
final_dst
=
progress_filter
(
name
,
prelim_dst
)
if
final_dst
:
if
final_dst
.
endswith
(
os
.
sep
):
final_dst
=
final_dst
[:
-
1
]
try
:
# XXX Ugh
tarobj
.
_extract_member
(
member
,
final_dst
)
except
tarfile
.
ExtractError
:
# chown/chmod/mkfifo/mknode/makedev failed
pass
return
True
def
patch_archive_util
():
setuptools
.
archive_util
.
extraction_drivers
=
(
setuptools
.
archive_util
.
unpack_directory
,
setuptools
.
archive_util
.
unpack_zipfile
,
unpack_tarfile_patched
,
)
def
unpatch_archive_util
():
setuptools
.
archive_util
.
extraction_drivers
=
(
setuptools
.
archive_util
.
unpack_directory
,
setuptools
.
archive_util
.
unpack_zipfile
,
setuptools
.
archive_util
.
unpack_tarfile
,
)
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