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bitbake/fetcher: Deal with a ton of different bugs

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The more we try and patch up the fetcher code, the more things break. The
code blocks in question are practically unreadable and are full of corner
cases where fetching could fail. In summary the issues noticed included:

a) Always fetching strange broken urls from the premirror for "noclone"
   git repositories
b) Not creating or rewriting .md5 stamp files inconsistently
c) Always fetching git source mirror tarballs from the premirror even
   if they already exist but the checkout directory does now
d) Passing "None" values to os.access() and os.path.extsts() checks under
   certain circumstances
e) Not using fetched git mirror tarballs if the preexist and always
   try and fetch them.

This patch rewrites the sections of code in question to be simpler and
more readable, fixing the above problems and most likely other odd
corner cases.

Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
This commit is contained in:
Richard Purdie
2010-10-19 12:30:21 +01:00
committed by Saul Wold
parent fc9c11de28
commit e9ef9424a3
2 changed files with 37 additions and 35 deletions
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28
bitbake/lib/bb/fetch/git.py
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@@ -88,15 +88,21 @@ class Git(Fetch):
def forcefetch(self, url, ud, d):
if 'fullclone' in ud.parm:
return True
if os.path.exists(self.localpath(url, ud, d)):
if 'noclone' in ud.parm:
return False
if os.path.exists(ud.localpath):
return False
if not self._contains_ref(ud.tag, d):
return True
return False
def try_premirror(self, u, ud, d):
if 'noclone' in ud.parm:
return False
if os.path.exists(ud.clonedir):
return False
if os.path.exists(ud.localpath):
return False
return True
@@ -113,16 +119,25 @@ class Git(Fetch):
coname = '%s' % (ud.tag)
codir = os.path.join(ud.clonedir, coname)
if not os.path.exists(ud.clonedir):
# If we have no existing clone and no mirror tarball, try and obtain one
if not os.path.exists(ud.clonedir) and not os.path.exists(repofile):
try:
Fetch.try_mirrors(ud.mirrortarball)
bb.mkdirhier(ud.clonedir)
os.chdir(ud.clonedir)
runfetchcmd("tar -xzf %s" % (repofile), d)
except:
runfetchcmd("%s clone -n %s://%s%s%s %s" % (ud.basecmd, ud.proto, username, ud.host, ud.path, ud.clonedir), d)
pass
# If the checkout doesn't exist and the mirror tarball does, extract it
if not os.path.exists(ud.clonedir) and os.path.exists(repofile):
bb.mkdirhier(ud.clonedir)
os.chdir(ud.clonedir)
runfetchcmd("tar -xzf %s" % (repofile), d)
# If the repo still doesn't exist, fallback to cloning it
if not os.path.exists(ud.clonedir):
runfetchcmd("%s clone -n %s://%s%s%s %s" % (ud.basecmd, ud.proto, username, ud.host, ud.path, ud.clonedir), d)
os.chdir(ud.clonedir)
# Update the checkout if needed
if not self._contains_ref(ud.tag, d) or 'fullclone' in ud.parm:
# Remove all but the .git directory
runfetchcmd("rm * -Rf", d)
@@ -131,6 +146,7 @@ class Git(Fetch):
runfetchcmd("%s prune-packed" % ud.basecmd, d)
runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d)
# Generate a mirror tarball if needed
os.chdir(ud.clonedir)
mirror_tarballs = data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True)
if mirror_tarballs != "0" or 'fullclone' in ud.parm: