Refactored fetching and checking out of missing repos in kas.config

The current implementation did some more hackish solution to work
around some of kas infrastructure, without changing to much.

This patch cleans this up and therefor remove the more obsure part
of the include mechansim.

Signed-off-by: Claudius Heine <ch@denx.de>

kas/libcmds.py

@@ -28,7 +28,7 @@ import logging
 import shutil
 import os
 from .libkas import (ssh_cleanup_agent, ssh_setup_agent, ssh_no_host_key_check,
-                     run_cmd, get_build_environ)
+                     get_build_environ, repo_fetch, repo_checkout)
 
 __license__ = 'MIT'
 __copyright__ = 'Copyright (c) Siemens AG, 2017'
@@ -210,42 +210,7 @@ class ReposFetch(Command):
 
     def execute(self, config):
         for repo in config.get_repos():
-            if repo.git_operation_disabled:
-                continue
-
-            if not os.path.exists(repo.path):
-                os.makedirs(os.path.dirname(repo.path), exist_ok=True)
-                gitsrcdir = os.path.join(config.get_repo_ref_dir() or '',
-                                         repo.qualified_name)
-                logging.debug('Looking for repo ref dir in %s', gitsrcdir)
-                if config.get_repo_ref_dir() and os.path.exists(gitsrcdir):
-                    run_cmd(['/usr/bin/git',
-                             'clone',
-                             '--reference', gitsrcdir,
-                             repo.url, repo.path],
-                            env=config.environ,
-                            cwd=config.kas_work_dir)
-                else:
-                    run_cmd(['/usr/bin/git', 'clone', '-q', repo.url,
-                             repo.path],
-                            env=config.environ,
-                            cwd=config.kas_work_dir)
-                continue
-
-            # Does refspec in the current repository?
-            (retc, output) = run_cmd(['/usr/bin/git', 'cat-file',
-                                      '-t', repo.refspec], env=config.environ,
-                                     cwd=repo.path, fail=False)
-            if retc == 0:
-                continue
-
-            # No it is missing, try to fetch
-            (retc, output) = run_cmd(['/usr/bin/git', 'fetch', '--all'],
-                                     env=config.environ,
-                                     cwd=repo.path, fail=False)
-            if retc:
-                logging.warning('Could not update repository %s: %s',
-                                repo.name, output)
+            repo_fetch(config, repo)
 
 
 class ReposCheckout(Command):
@@ -258,27 +223,4 @@ class ReposCheckout(Command):
 
     def execute(self, config):
         for repo in config.get_repos():
-            if repo.git_operation_disabled:
-                continue
-
-            # Check if repos is dirty
-            (_, output) = run_cmd(['/usr/bin/git', 'diff', '--shortstat'],
-                                  env=config.environ, cwd=repo.path,
-                                  fail=False)
-            if len(output):
-                logging.warning('Repo %s is dirty. no checkout', repo.name)
-                continue
-
-            # Check if current HEAD is what in the config file is defined.
-            (_, output) = run_cmd(['/usr/bin/git', 'rev-parse',
-                                   '--verify', 'HEAD'],
-                                  env=config.environ, cwd=repo.path)
-
-            if output.strip() == repo.refspec:
-                logging.info('Repo %s has already checkout out correct '
-                             'refspec. nothing to do', repo.name)
-                continue
-
-            run_cmd(['/usr/bin/git', 'checkout', '-q',
-                     '{refspec}'.format(refspec=repo.refspec)],
-                    cwd=repo.path)
+            repo_checkout(config, repo)