bb.fetch2: Add git unpack
The git download method clones the git repository to the local machine. The unpack process can be optimised to be a local to local machine clone or a direct readtree operation to the destination using git.will clone git repo to local, so git unpack can be simplified to only checkouting the code to the work dir. For fullclone case, we also need to manually copy all the ref info, which is needed by the later do_kernel_checkout(). Rather than use hardlinks, we reference the repository using alternatives since the download directory may be on a different filesystem. [Change to use -s by Richard Purdie] Signed-off-by: Yu Ke <ke.yu@intel.com>
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@ -194,6 +194,31 @@ class Git(Fetch):
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os.chdir(ud.clonedir)
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bb.utils.prunedir(codir)
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def unpack(self, ud, destdir, d):
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""" unpack the downloaded src to destdir"""
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subdir = ud.parm.get("subpath", "")
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if subdir != "":
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readpathspec = ":%s" % (subdir)
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else:
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readpathspec = ""
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destdir = os.path.join(destdir, "git/")
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if os.path.exists(destdir):
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bb.utils.prunedir(destdir)
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if 'fullclone' in ud.parm:
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runfetchcmd("git clone -s -n %s %s" % (ud.clonedir, destdir), d)
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if os.path.exists("%s/.git/refs/remotes/origin" % ud.clonedir):
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runfetchcmd("cp -af %s/.git/refs/remotes/origin/* %s/.git/refs/remotes/origin/" %(ud.clonedir, destdir), d)
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if os.path.exists("%s/.git/packed-refs" % ud.clonedir):
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runfetchcmd("cp -af %s/.git/packed-refs %s/.git/" %(ud.clonedir, destdir), d)
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else:
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os.chdir(ud.clonedir)
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runfetchcmd("%s read-tree %s%s" % (ud.basecmd, ud.tag, readpathspec), d)
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runfetchcmd("%s checkout-index -q -f --prefix=%s -a" % (ud.basecmd, destdir), d)
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return True
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def supports_srcrev(self):
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return True
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