[PATCH] devtool: Avoid failure for recipes with S == WORKDIR and no local files

[Peter Kjellerstedt <peter.kjellerstedt@axis.com>]

When extracting the sources for a recipe that has S == WORKDIR and no
local files in the SRC_URI (which, e.g., can happen for a recipe with
a URI that has the unpack=false attribute), the extraction fails with
the following backtrace:

  Traceback (most recent call last):
    File ".../scripts/devtool", line 344, in <module>
      ret = main()
    File ".../scripts/devtool", line 331, in main
      ret = args.func(args, config, basepath, workspace)
    File ".../poky/scripts/lib/devtool/standard.py", line 762, in
    modify
      initial_rev, _ = _extract_source(srctree, args.keep_temp,
      args.branch, False, config, basepath, workspace,
      args.fixed_setup, rd, tinfoil, no_overrides=args.no_overrides)
    File ".../poky/scripts/lib/devtool/standard.py", line 647, in
    _extract_source
      bb.process.run('git %s commit -a -m "Committing local file
      symlinks\n\n%s"' % (' '.join(useroptions),
      oe.patch.GitApplyTree.ignore_commit_prefix), cwd=srctree)
    File ".../poky/bitbake/lib/bb/process.py", line 178, in run
      raise ExecutionError(cmd, pipe.returncode, stdout, stderr)
  bb.process.ExecutionError: Execution of 'git commit -a -m
  "Committing local file symlinks

  %% ignore"' failed with exit code 1:
  On branch devtool
  nothing to commit, working tree clean

This is because no files were found in the oe-local-files directory
and consequently no symbolic links were added using `git add`, but the
`git commit` command was still executed.

Signed-off-by: Peter Kjellerstedt <peter.kjellerstedt@axis.com>
---
 scripts/lib/devtool/standard.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/lib/devtool/standard.py b/scripts/lib/devtool/standard.py
index 96af488798..9eeaefb79c 100644
--- a/scripts/lib/devtool/standard.py
+++ b/scripts/lib/devtool/standard.py
@@ -482,9 +482,9 @@ def symlink_oelocal_files_srctree(rd,srctree):
                 addfiles.append(os.path.join(relpth, fn))
         if addfiles:
             bb.process.run('git add %s' % ' '.join(addfiles), cwd=srctree)
-        useroptions = []
-        oe.patch.GitApplyTree.gitCommandUserOptions(useroptions, d=rd)
-        bb.process.run('git %s commit -a -m "Committing local file symlinks\n\n%s"' % (' '.join(useroptions), oe.patch.GitApplyTree.ignore_commit_prefix), cwd=srctree)
+            useroptions = []
+            oe.patch.GitApplyTree.gitCommandUserOptions(useroptions, d=rd)
+            bb.process.run('git %s commit -m "Committing local file symlinks\n\n%s"' % (' '.join(useroptions), oe.patch.GitApplyTree.ignore_commit_prefix), cwd=srctree)
 
 
 def _extract_source(srctree, keep_temp, devbranch, sync, config, basepath, workspace, fixed_setup, d, tinfoil, no_overrides=False):
-- 
2.21.0