recipetool: ensure git clone is standalone when extracting

If -x is specified and the specified URI was a git repository, we need
to ensure that the resulting clone is a sandalone and not one that has
pointers into the temporary fetch location or DL_DIR (since the git
fetcher does a local clone with -s). Split out the code from devtool
that already does this for "devtool modify -x" and reuse that.

(From OE-Core rev: fc47e8652ef32e7399f57c80593df90dc52d8b84)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

scripts/lib/devtool/standard.py

@@ -23,6 +23,7 @@ import glob
 import tempfile
 import logging
 import argparse
+import scriptutils
 from devtool import exec_build_env_command, setup_tinfoil
 
 logger = logging.getLogger('devtool')
@@ -236,12 +237,7 @@ def _extract_source(srctree, keep_temp, devbranch, d):
             # Handle if S is set to a subdirectory of the source
             srcsubdir = os.path.join(workdir, os.path.relpath(srcsubdir, workdir).split(os.sep)[0])
 
-        if os.path.exists(os.path.join(srcsubdir, '.git')):
-            alternatesfile = os.path.join(srcsubdir, '.git', 'objects', 'info', 'alternates')
-            if os.path.exists(alternatesfile):
-                # This will have been cloned with -s, so we need to convert it to a full clone
-                bb.process.run('git repack -a', cwd=srcsubdir)
-                os.remove(alternatesfile)
+        scriptutils.git_convert_standalone_clone(srcsubdir)
 
         patchdir = os.path.join(srcsubdir, 'patches')
         haspatches = False

scripts/lib/recipetool/create.py

@@ -22,6 +22,7 @@ import glob
 import fnmatch
 import re
 import logging
+import scriptutils
 
 logger = logging.getLogger('recipetool')
 
@@ -238,6 +239,7 @@ def create_recipe(args):
     outlines.extend(lines_after)
 
     if args.extract_to:
+        scriptutils.git_convert_standalone_clone(srctree)
         shutil.move(srctree, args.extract_to)
         logger.info('Source extracted to %s' % args.extract_to)
 

scripts/lib/scriptutils.py

@@ -58,3 +58,14 @@ def load_plugins(logger, plugins, pluginpath):
             if hasattr(plugin, 'plugin_init'):
                 plugin.plugin_init(plugins)
                 plugins.append(plugin)
+
+def git_convert_standalone_clone(repodir):
+    """If specified directory is a git repository, ensure it's a standalone clone"""
+    import bb.process
+    if os.path.exists(os.path.join(repodir, '.git')):
+        alternatesfile = os.path.join(repodir, '.git', 'objects', 'info', 'alternates')
+        if os.path.exists(alternatesfile):
+            # This will have been cloned with -s, so we need to convert it so none
+            # of the contents is shared
+            bb.process.run('git repack -a', cwd=repodir)
+            os.remove(alternatesfile)