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# vim: set fileencoding=utf-8 :
#
# (C) 2006-2011 Guido Guenther <agx@sigxcpu.org>
# (C) 2012 Intel Corporation <markus.lehtonen@linux.intel.com>
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""Common functionality for Debian and RPM buildpackage scripts"""
import os, os.path
import subprocess
import shutil
import gbp.tmpfile as tempfile
from gbp.command_wrappers import (CatenateTarArchive, CatenateZipArchive)
from gbp.git.repository import GitRepository, GitRepositoryError
from gbp.errors import GbpError
import gbp.log
# when we want to reference the index in a treeish context we call it:
index_name = "INDEX"
# when we want to reference the working copy in treeish context we call it:
wc_names = {'WC': {'force': True, 'untracked': True},
'WC.TRACKED': {'force': False, 'untracked': False},
'WC.UNTRACKED': {'force': False, 'untracked': True},
'WC.IGNORED': {'force': True, 'untracked': True}}
def sanitize_prefix(prefix):
"""
Sanitize the prefix used for generating source archives
>>> sanitize_prefix('')
'/'
>>> sanitize_prefix('foo/')
'foo/'
>>> sanitize_prefix('/foo/bar')
'foo/bar/'
"""
if prefix:
return prefix.strip('/') + '/'
return '/'
def compress(cmd, options, output, input_data=None):
"""
Filter data through a compressor cmd.
For better performance input_data should feed data in bigger chunks.
"""
stdin = subprocess.PIPE if input_data else None
try:
with open(output, 'w') as fobj:
popen = subprocess.Popen([cmd] + options, stdin=stdin, stdout=fobj)
if stdin:
for chunk in input_data:
popen.stdin.write(chunk)
popen.stdin.close()
if popen.wait():
raise GbpError("Error creating %s: running '%s' failed" %
(output, ' '.join([cmd] + options)))
except (OSError, IOError) as err:
raise GbpError("Error creating %s: %s" % (output, err))
def git_archive_submodules(repo, treeish, output, tmpdir_base, prefix,
comp_type, comp_level, comp_opts, format='tar'):
"""
Create a source tree archive with submodules.
Since git-archive always writes an end of tarfile trailer we concatenate
the generated archives using tar and compress the result.
Exception handling is left to the caller.
"""
prefix = sanitize_prefix(prefix)
tempdir = tempfile.mkdtemp(dir=tmpdir_base, prefix='git-archive_')
main_archive = os.path.join(tempdir, "main.%s" % format)
submodule_archive = os.path.join(tempdir, "submodule.%s" % format)
try:
# generate main (tmp) archive
repo.archive(format=format, prefix=prefix,
output=main_archive, treeish=treeish)
# generate each submodule's arhive and append it to the main archive
for (subdir, commit) in repo.get_submodules(treeish):
tarpath = [subdir, subdir[2:]][subdir.startswith("./")]
subrepo = GitRepository(os.path.join(repo.path, subdir))
gbp.log.debug("Processing submodule %s (%s)" % (subdir, commit[0:8]))
subrepo.archive(format=format, prefix='%s%s/' % (prefix, tarpath),
output=submodule_archive, treeish=commit)
if format == 'tar':
CatenateTarArchive(main_archive)(submodule_archive)
elif format == 'zip':
CatenateZipArchive(main_archive)(submodule_archive)
# compress the output
if comp_type:
compress(comp_type, ['--stdout', '-%s' % comp_level] + comp_opts +
[main_archive], output)
else:
shutil.move(main_archive, output)
finally:
shutil.rmtree(tempdir)
def git_archive_single(repo, treeish, output, prefix, comp_type, comp_level,
comp_opts, format='tar'):
"""
Create an archive without submodules
Exception handling is left to the caller.
"""
prefix = sanitize_prefix(prefix)
if comp_type:
cmd = comp_type
opts = ['--stdout', '-%s' % comp_level] + comp_opts
else:
cmd= 'cat'
opts = []
input_data = repo.archive(format, prefix, None, treeish)
compress(cmd, opts, output, input_data)
def untar_data(outdir, data):
"""Extract tar provided as an iterable"""
popen = subprocess.Popen(['tar', '-C', outdir, '-x'],
stdin=subprocess.PIPE)
for chunk in data:
popen.stdin.write(chunk)
popen.stdin.close()
if popen.wait():
raise GbpError("Error extracting tar to %s" % outdir)
#{ Functions to handle export-dir
def dump_tree(repo, export_dir, treeish, with_submodules, recursive=True):
"""Dump a git tree-ish to output_dir"""
if not os.path.exists(export_dir):
os.makedirs(export_dir)
if recursive:
paths = ''
else:
paths = [nam for _mod, typ, _sha, nam in repo.list_tree(treeish) if
typ == 'blob']
try:
data = repo.archive('tar', '', None, treeish, paths)
untar_data(export_dir, data)
if recursive and with_submodules and repo.has_submodules():
repo.update_submodules()
for (subdir, commit) in repo.get_submodules(treeish):
gbp.log.info("Processing submodule %s (%s)" % (subdir,
commit[0:8]))
subrepo = GitRepository(os.path.join(repo.path, subdir))
prefix = [subdir, subdir[2:]][subdir.startswith("./")] + '/'
data = subrepo.archive('tar', prefix, None, treeish)
untar_data(export_dir, data)
except GitRepositoryError as err:
gbp.log.err("Git error when dumping tree: %s" % err)
return False
return True
def wc_index(repo):
"""Get path of the temporary index file used for exporting working copy"""
return os.path.join(repo.git_dir, "gbp_index")
def write_wc(repo, force=True, untracked=True):
"""write out the current working copy as a treeish object"""
clone_index(repo)
repo.add_files(repo.path, force=force, untracked=untracked, index_file=wc_index(repo))
tree = repo.write_tree(index_file=wc_index(repo))
return tree
def drop_index(repo):
"""drop our custom index"""
if os.path.exists(wc_index(repo)):
os.unlink(wc_index(repo))
def clone_index(repo):
"""Copy the current index file to our custom index file"""
indexfn = os.path.join(repo.git_dir, "index")
if os.path.exists(indexfn):
shutil.copy2(indexfn, wc_index(repo))
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