[bitbake-devel] [PATCH 3/4] fetch2: Allow local git trees as pre-mirrors

[Jason Wessel]

There is a strong desire to store the raw git trees in a pre-mirror
such that they can easily get updated externally as well as to contain
local branches.

This patch adds another type of pre-mirror rule that is "git" based.

The syntax looks like:
  PREMIRRORS_append := "\
     git://.*/.* git://${LAYERDIR}/downloads/git/ \n"

The syntax for typical tar.gz compressed git tree is:
  PREMIRRORS_append := "\
     git://.*/.* file://${LAYERDIR}/downloads/git/ \n"

The new pre-mirror type also requires the creation of the GITDIR at
the pre-mirror check time or the git clone and git checks will fail
with obscure errors.

Signed-off-by: Jason Wessel <jason.wessel at windriver.com>
---
 lib/bb/fetch2/__init__.py |    8 +++++++-
 lib/bb/fetch2/git.py      |    4 ++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/bb/fetch2/__init__.py b/lib/bb/fetch2/__init__.py
index 324eef2..68025a3 100644
--- a/lib/bb/fetch2/__init__.py
+++ b/lib/bb/fetch2/__init__.py
@@ -202,7 +202,13 @@ def uri_replace(ud, uri_find, uri_replace, d):
                 if uri_find_decoded.index(i) == 2:
                     basename = None
                     if ud.mirrortarball:
-                        basename = os.path.basename(ud.mirrortarball)
+                        # Transpose a git uri to a file uri and check if there
+                        # is a local mirror durring the premirror checks
+                        if ud.mirror and uri_find_decoded[0] == "git":
+                            result_decoded[0] = "file"
+                            basename = os.path.basename(ud.mirror)
+                        else:
+                            basename = os.path.basename(ud.mirrortarball)
                     elif ud.localpath:
                         basename = os.path.basename(ud.localpath)
                     if basename and result_decoded[loc].endswith("/"):
diff --git a/lib/bb/fetch2/git.py b/lib/bb/fetch2/git.py
index ecc5e0d..1ad9213 100644
--- a/lib/bb/fetch2/git.py
+++ b/lib/bb/fetch2/git.py
@@ -138,9 +138,11 @@ class Git(FetchMethod):
         if ud.rebaseable:
             for name in ud.names:
                 gitsrcname = gitsrcname + '_' + ud.revisions[name]
+        ud.mirror = gitsrcname
         ud.mirrortarball = 'git2_%s.tar.gz' % (gitsrcname)
         ud.fullmirror = os.path.join(d.getVar("DL_DIR", True), ud.mirrortarball)
         gitdir = d.getVar("GITDIR", True) or (d.getVar("DL_DIR", True) + "/git2/")
+        ud.gitdir = gitdir
         ud.clonedir = os.path.join(gitdir, gitsrcname)
 
         ud.localfile = ud.clonedir
@@ -166,6 +168,8 @@ class Git(FetchMethod):
             return True
         if os.path.exists(ud.clonedir):
             return False
+        if not os.path.exists(ud.gitdir):
+            bb.utils.mkdirhier(ud.gitdir)
         return True
 
     def download(self, loc, ud, d):
-- 
1.7.10