[bitbake-devel] [PATCH] fetch2/git: add git-lfs toggle option

[Ross Burton]

Add a new 'lfs' option to the git fetcher so that we can optionally not fetch
git-lfs content, for repositories that contain LFS data that we don't
actually need for building.

By default lfs is set to 1, so if the repository has LFS content then git-lfs is
required.  Setting lfs to 0 will mean that git-lfs won't be required to fetch,
and some files will be missing.

Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 bitbake/lib/bb/fetch2/git.py | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/bitbake/lib/bb/fetch2/git.py b/bitbake/lib/bb/fetch2/git.py
index e171aa7eb16..5fd63b4e33b 100644
--- a/bitbake/lib/bb/fetch2/git.py
+++ b/bitbake/lib/bb/fetch2/git.py
@@ -464,6 +464,8 @@ class Git(FetchMethod):
         if os.path.exists(destdir):
             bb.utils.prunedir(destdir)
 
+        need_lfs = ud.parm.get("lfs", "1") == "1"
+
         source_found = False
         source_error = []
 
@@ -493,14 +495,16 @@ class Git(FetchMethod):
         runfetchcmd("%s remote set-url origin %s" % (ud.basecmd, repourl), d, workdir=destdir)
 
         if self._contains_lfs(ud, d, destdir):
-            path = d.getVar('PATH')
-            if path:
-                gitlfstool = bb.utils.which(path, "git-lfs", executable=True)
-                if not gitlfstool:
-                    raise bb.fetch2.FetchError("Repository %s has lfs content, install git-lfs plugin on host to download" % (repourl))
+            if need_lfs:
+                path = d.getVar('PATH')
+                if path:
+                    gitlfstool = bb.utils.which(path, "git-lfs", executable=True)
+                    if not gitlfstool:
+                        raise bb.fetch2.FetchError("Repository %s has LFS content, install git-lfs on host to download (or set lfs=0 to ignore it)" % (repourl))
+                else:
+                    bb.note("Could not find 'PATH'")
             else:
-                bb.note("Could not find 'PATH'")
-
+                bb.note("Repository %s has LFS content but it is not being fetched" % (repourl))
 
         if not ud.nocheckout:
             if subdir != "":
-- 
2.20.1