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# Copyright (C) 2014 Codethink Limited
#
# 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; version 2 of the License.
#
# 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.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# =*= License: GPL-2 =*=
import os
import app
import re
from subprocess import call
from subprocess import check_output
import string
import definitions
import urllib2
import json
def get_repo_url(this):
url = this['repo']
url = url.replace('upstream:', 'git://git.baserock.org/delta/')
url = url.replace('baserock:baserock/',
'git://git.baserock.org/baserock/baserock/')
url = url.replace('freedesktop:', 'git://anongit.freedesktop.org/')
url = url.replace('github:', 'git://github.com/')
url = url.replace('gnome:', 'git://git.gnome.org')
if url.endswith('.git'):
url = url[:-4]
return url
def quote_url(url):
''' Convert URIs to strings that only contain digits, letters, % and _.
NOTE: When changing the code of this function, make sure to also apply
the same to the quote_url() function of lorry. Otherwise the git tarballs
generated by lorry may no longer be found by morph.
'''
valid_chars = string.digits + string.ascii_letters + '%_'
transl = lambda x: x if x in valid_chars else '_'
return ''.join([transl(x) for x in url])
def get_repo_name(this):
return quote_url(get_repo_url(this))
# return re.split('[:/]', this['repo'])[-1]
def get_tree(this):
defs = definitions.Definitions()
if defs.lookup(this, 'repo') == []:
return None
if defs.lookup(this, 'git') == []:
this['git'] = (os.path.join(app.settings['gits'],
get_repo_name(this)))
ref = defs.lookup(this, 'ref')
if not os.path.exists(this['git']):
try:
url = (app.settings['cache-server-url'] + 'repo='
+ get_repo_url(this) + '&ref=' + ref)
with urllib2.urlopen(url) as response:
tree = json.loads(response.read().decode())['tree']
return tree
except Exception, e:
yapp.log(this, 'WARNING: no tree from cache-server', tree)
mirror(this)
with app.chdir(this['git']), open(os.devnull, "w") as fnull:
if call(['git', 'rev-parse', ref + '^{object}'], stdout=fnull,
stderr=fnull):
# can't resolve this ref. is it upstream?
call(['git', 'fetch', 'origin'], stdout=fnull, stderr=fnull)
try:
tree = check_output(['git', 'rev-parse', ref + '^{tree}'],
universal_newlines=True)[0:-1]
return tree
except Exception, e:
# either we don't have a git dir, or ref is not unique
# or ref does not exist
yapp.log(this, 'ERROR: could not find tree for ref', ref)
raise SystemExit
def copy_repo(repo, destdir):
'''Copies a cached repository into a directory using cp.
This also fixes up the repository afterwards, so that it can contain
code etc. It does not leave any given branch ready for use.
'''
# core.bare should be false so that git believes work trees are possible
# we do not want the origin remote to behave as a mirror for pulls
# we want a traditional refs/heads -> refs/remotes/origin ref mapping
# set the origin url to the cached repo so that we can quickly clean up
# by packing the refs, we can then edit then en-masse easily
call(['cp', '-a', repo, os.path.join(destdir, '.git')])
call(['git', 'config', 'core.bare', 'false'])
call(['git', 'config', '--unset', 'remote.origin.mirror'])
with open(os.devnull, "w") as fnull:
call(['git', 'config', 'remote.origin.fetch',
'+refs/heads/*:refs/remotes/origin/*'],
stdout=fnull,
stderr=fnull)
call(['git', 'config', 'remote.origin.url', repo])
call(['git', 'pack-refs', '--all', '--prune'])
# turn refs/heads/* into refs/remotes/origin/* in the packed refs
# so that the new copy behaves more like a traditional clone.
with open(os.path.join(destdir, ".git", "packed-refs"), "r") as ref_fh:
pack_lines = ref_fh.read().split("\n")
with open(os.path.join(destdir, ".git", "packed-refs"), "w") as ref_fh:
ref_fh.write(pack_lines.pop(0) + "\n")
for refline in pack_lines:
if ' refs/remotes/' in refline:
continue
if ' refs/heads/' in refline:
sha, ref = refline[:40], refline[41:]
if ref.startswith("refs/heads/"):
ref = "refs/remotes/origin/" + ref[11:]
refline = "%s %s" % (sha, ref)
ref_fh.write("%s\n" % (refline))
# Finally run a remote update to clear up the refs ready for use.
with open(os.devnull, "w") as fnull:
call(['git', 'remote', 'update', 'origin', '--prune'],
stdout=fnull,
stderr=fnull)
def mirror(this):
# try tarball first
try:
os.makedirs(this['git'])
with app.chdir(this['git']):
yapp.log(this, 'Try fetching tarball')
repo_url = get_repo_url(this)
tar_file = quote_url(repo_url) + '.tar'
tar_url = os.path.join("http://git.baserock.org/tarballs",
tar_file)
with open(os.devnull, "w") as fnull:
call(['wget', tar_url], stdout=fnull, stderr=fnull)
call(['tar', 'xf', tar_file], stdout=fnull, stderr=fnull)
os.remove(tar_file)
call(['git', 'config', 'remote.origin.url', repo_url],
stdout=fnull, stderr=fnull)
call(['git', 'config', 'remote.origin.mirror', 'true'],
stdout=fnull, stderr=fnull)
if call(['git', 'config', 'remote.origin.fetch',
'+refs/*:refs/*'],
stdout=fnull, stderr=fnull) != 0:
raise BaseException('Did not get a valid git repo')
call(['git', 'fetch', 'origin'], stdout=fnull, stderr=fnull)
except Exception, e:
yapp.log(this, 'Using git clone', get_repo_url(this))
try:
with open(os.devnull, "w") as fnull:
call(['git', 'clone', '--mirror', '-n', get_repo_url(this),
this['git']], stdout=fnull, stderr=fnull)
except Exception, e:
yapp.log(this, 'ERROR: failed to clone', get_repo_url(this))
raise SystemExit
yapp.log(this, 'Git repo is mirrored at', this['git'])
def fetch(repo):
with app.chdir(repo), open(os.devnull, "w") as fnull:
call(['git', 'fetch', 'origin'], stdout=fnull, stderr=fnull)
def checkout(this):
# checkout the required version of this from git
with app.chdir(this['build']):
yapp.log(this, 'Git checkout')
if not this.get('git'):
this['git'] = (os.path.join(app.settings['gits'],
get_repo_name(this)))
if not os.path.exists(this['git']):
mirror(this)
copy_repo(this['git'], this['build'])
with open(os.devnull, "w") as fnull:
if call(['git', 'checkout', this['ref']],
stdout=fnull, stderr=fnull) != 0:
yapp.log(this, 'ERROR: git checkout failed for', this['tree'])
raise SystemExit
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