git.py: Remove the source tree tarball archives

Since we're now always providing the git source control files it becomes
pointless to handle the tarballs of specific git revisions so drop this
part of the fetcher.

Signed-off-by: Yu Ke <ke.yu@intel.com>

bitbake/lib/bb/fetch2/git.py

@@ -70,18 +70,7 @@ class Git(Fetch):
         if not ud.tag or ud.tag == "master":
             ud.tag = self.latest_revision(url, ud, d)
 
-        subdir = ud.parm.get("subpath", "")
+        ud.localfile = ud.mirrortarball
-        if subdir != "":
-            if subdir.endswith("/"):
-                subdir = subdir[:-1]
-            subdirpath = os.path.join(ud.path, subdir);
-        else:
-            subdirpath = ud.path;
-
-        if 'fullclone' in ud.parm:
-            ud.localfile = ud.mirrortarball
-        else:
-            ud.localfile = data.expand('git_%s%s_%s.tar.gz' % (ud.host, subdirpath.replace('/', '.'), ud.tag), d)
 
         if 'noclone' in ud.parm:
             ud.localfile = None
@@ -94,8 +83,6 @@ class Git(Fetch):
             return True
         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
@@ -120,6 +107,8 @@ class Git(Fetch):
 
         repofile = os.path.join(data.getVar("DL_DIR", d, 1), ud.mirrortarball)
 
+        ud.repochanged = not os.path.exists(repofile)
+
         # 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)
@@ -144,60 +133,18 @@ class Git(Fetch):
             runfetchcmd("%s fetch --tags %s://%s%s%s" % (ud.basecmd, ud.proto, username, ud.host, ud.path), d)
             runfetchcmd("%s prune-packed" % ud.basecmd, d)
             runfetchcmd("%s pack-redundant --all | xargs -r rm" % ud.basecmd, d)
+            ud.repochanged = True
 
     def build_mirror_data(self, url, ud, d):
         # Generate a mirror tarball if needed
-        coname = '%s' % (ud.tag)
-        codir = os.path.join(ud.clonedir, coname)
         repofile = os.path.join(data.getVar("DL_DIR", d, 1), ud.mirrortarball)
 
         os.chdir(ud.clonedir)
         mirror_tarballs = data.getVar("BB_GENERATE_MIRROR_TARBALLS", d, True)
-        if mirror_tarballs != "0" or 'fullclone' in ud.parm:
+        if (mirror_tarballs != "0" or 'fullclone' in ud.parm) and ud.repochanged:
             logger.info("Creating tarball of git repository")
             runfetchcmd("tar -czf %s %s" % (repofile, os.path.join(".", ".git", "*") ), d)
 
-        if 'fullclone' in ud.parm:
-            return
-
-        if os.path.exists(codir):
-            bb.utils.prunedir(codir)
-
-        subdir = ud.parm.get("subpath", "")
-        if subdir != "":
-            if subdir.endswith("/"):
-                subdirbase = os.path.basename(subdir[:-1])
-            else:
-                subdirbase = os.path.basename(subdir)
-        else:
-            subdirbase = ""
-
-        if subdir != "":
-            readpathspec = ":%s" % (subdir)
-            codir = os.path.join(codir, "git")
-            coprefix = os.path.join(codir, subdirbase, "")
-        else:
-            readpathspec = ""
-            coprefix = os.path.join(codir, "git", "")
-
-        scmdata = ud.parm.get("scmdata", "")
-        if scmdata == "keep":
-            runfetchcmd("%s clone -n %s %s" % (ud.basecmd, ud.clonedir, coprefix), d)
-            os.chdir(coprefix)
-            runfetchcmd("%s checkout -q -f %s%s" % (ud.basecmd, ud.tag, readpathspec), d)
-        else:
-            bb.mkdirhier(codir)
-            os.chdir(ud.clonedir)
-            runfetchcmd("%s read-tree %s%s" % (ud.basecmd, ud.tag, readpathspec), d)
-            runfetchcmd("%s checkout-index -q -f --prefix=%s -a" % (ud.basecmd, coprefix), d)
-
-        os.chdir(codir)
-        logger.info("Creating tarball of git checkout")
-        runfetchcmd("tar -czf %s %s" % (ud.localpath, os.path.join(".", "*") ), d)
-
-        os.chdir(ud.clonedir)
-        bb.utils.prunedir(codir)
-
     def unpack(self, ud, destdir, d):
         """ unpack the downloaded src to destdir"""