[Buildroot] [git commit] support/download/git: add missing "git lfs install" invocation for LFS support

[Buildroot] [git commit] support/download/git: add missing "git lfs install" invocation for LFS support

[Thomas Petazzoni]

commit: https://git.buildroot.net/buildroot/commit/?id=338b2e58d46ac32ded7877e2f211515024bd881a
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master

The original patch for commit cff428fe31 ("download/git: support Git
LFS") included a call to "git lfs install" but this was a problem as it
could modify ~/.gitconfig outside the dl/ tree.  When this was
updated it was thought that the modification to gitconfig was
unnecessary because the LFS fetch and checkout steps are performed
manually.

Unfortunately, this is not correct and the LFS checkout fails with:

	Cannot checkout LFS objects, Git LFS is not installed.

Add the call to "git lfs install", with the --local option so that only
the repository's .git/config is modified and not the user's global
~/.gitconfig.

This is also required for submodules as the parent repository's config
is not inherited.

Cc: Arnout Vandecappelle <arnout@mind.be>
Cc: Vincent Fazio <vfazio@xes-inc.com>
Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
---
 support/download/git | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/support/download/git b/support/download/git
index 41c3160099..1a1c315f73 100755
--- a/support/download/git
+++ b/support/download/git
@@ -209,10 +209,12 @@ fi
 
 # If there are large files then fetch them.
 if [ ${large_file} -eq 1 ]; then
+    _git lfs install --local
     _git lfs fetch
     _git lfs checkout
     # If there are also submodules, recurse into them,
     if [ ${recurse} -eq 1 ]; then
+        _git submodule foreach --recursive ${GIT} lfs install --local
         _git submodule foreach --recursive ${GIT} lfs fetch
         _git submodule foreach --recursive ${GIT} lfs checkout
     fi
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