1 files changed, 80 insertions, 0 deletions
diff --git a/poky/meta/lib/oeqa/utils/git.py b/poky/meta/lib/oeqa/utils/git.py
new file mode 100644
index 000000000..757e3f0cb
--- /dev/null
+++ b/poky/meta/lib/oeqa/utils/git.py
@@ -0,0 +1,80 @@
+#
+# Copyright (C) 2016 Intel Corporation
+#
+# Released under the MIT license (see COPYING.MIT)
+#
+"""Git repository interactions"""
+import os
+
+from oeqa.utils.commands import runCmd
+
+
+class GitError(Exception):
+    """Git error handling"""
+    pass
+
+class GitRepo(object):
+    """Class representing a Git repository clone"""
+    def __init__(self, path, is_topdir=False):
+        git_dir = self._run_git_cmd_at(['rev-parse', '--git-dir'], path)
+        git_dir = git_dir if os.path.isabs(git_dir) else os.path.join(path, git_dir)
+        self.git_dir = os.path.realpath(git_dir)
+
+        if self._run_git_cmd_at(['rev-parse', '--is-bare-repository'], path) == 'true':
+            self.bare = True
+            self.top_dir = self.git_dir
+        else:
+            self.bare = False
+            self.top_dir = self._run_git_cmd_at(['rev-parse', '--show-toplevel'],
+                                                path)
+        realpath = os.path.realpath(path)
+        if is_topdir and realpath != self.top_dir:
+            raise GitError("{} is not a Git top directory".format(realpath))
+
+    @staticmethod
+    def _run_git_cmd_at(git_args, cwd, **kwargs):
+        """Run git command at a specified directory"""
+        git_cmd = 'git ' if isinstance(git_args, str) else ['git']
+        git_cmd += git_args
+        ret = runCmd(git_cmd, ignore_status=True, cwd=cwd, **kwargs)
+        if ret.status:
+            cmd_str = git_cmd if isinstance(git_cmd, str) \
+                                else ' '.join(git_cmd)
+            raise GitError("'{}' failed with exit code {}: {}".format(
+                cmd_str, ret.status, ret.output))
+        return ret.output.strip()
+
+    @staticmethod
+    def init(path, bare=False):
+        """Initialize a new Git repository"""
+        cmd = ['init']
+        if bare:
+            cmd.append('--bare')
+        GitRepo._run_git_cmd_at(cmd, cwd=path)
+        return GitRepo(path, is_topdir=True)
+
+    def run_cmd(self, git_args, env_update=None):
+        """Run Git command"""
+        env = None
+        if env_update:
+            env = os.environ.copy()
+            env.update(env_update)
+        return self._run_git_cmd_at(git_args, self.top_dir, env=env)
+
+    def rev_parse(self, revision):
+        """Do git rev-parse"""
+        try:
+            return self.run_cmd(['rev-parse', '--verify', revision])
+        except GitError:
+            # Revision does not exist
+            return None
+
+    def get_current_branch(self):
+        """Get current branch"""
+        try:
+            # Strip 11 chars, i.e. 'refs/heads' from the beginning
+            return self.run_cmd(['symbolic-ref', 'HEAD'])[11:]
+        except GitError:
+            return None
+
+