VIXL Release 1.0

Refer to the README.md and LICENCE files for details.
diff --git a/tools/git.py b/tools/git.py
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+# Copyright 2013 ARM Limited
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+#   * Redistributions of source code must retain the above copyright notice,
+#     this list of conditions and the following disclaimer.
+#   * Redistributions in binary form must reproduce the above copyright notice,
+#     this list of conditions and the following disclaimer in the documentation
+#     and/or other materials provided with the distribution.
+#   * Neither the name of ARM Limited nor the names of its contributors may be
+#     used to endorse or promote products derived from this software without
+#     specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY ARM LIMITED AND CONTRIBUTORS "AS IS" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL ARM LIMITED BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+# OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+import re
+import util
+import os.path
+
+def is_git_repository_root():
+  return os.path.isdir('.git')
+
+def get_current_branch():
+  status, branches = util.getstatusoutput('git branch')
+  if status != 0: util.abort('Failed to run git branch.')
+  match = re.search("^\* (.*)$", branches, re.MULTILINE)
+  if not match: util.abort('Failed to find the current branch.')
+
+  branch = match.group(1);
+
+  # If we are not on a named branch, return the hash of the HEAD commit.
+  # This can occur (for example) if a specific revision is checked out by
+  # commit hash, or during a rebase.
+  if branch == '(no branch)':
+    status, commit = util.getstatusoutput('git log -1 --pretty=format:"%H"')
+    if status != 0: util.abort('Failed to run git log.')
+    match = re.search('^[0-9a-fA-F]{40}$', commit, re.MULTILINE)
+    if not match: util.abort('Failed to find the current revision.')
+    branch = match.group(0)
+
+  return branch
+
+
+def get_tracked_files():
+  command = 'git ls-tree '
+  branch = get_current_branch()
+  options = ' -r --full-tree --name-only'
+
+  status, tracked = util.getstatusoutput(command + branch + options)
+  if status != 0: util.abort('Failed to list tracked files.')
+
+  return tracked
+
+
+# Get untracked files in src/, test/, and tools/.
+def get_untracked_files():
+  status, output = util.getstatusoutput('git status -s')
+  if status != 0: util.abort('Failed to get git status.')
+
+  untracked_regexp = re.compile('\?\?.*(src/|test/|tools/).*(.cc$|.h$)')
+  files_in_watched_folder = lambda n: untracked_regexp.search(n) != None
+  untracked_files = filter(files_in_watched_folder, output.split('\n'))
+
+  return untracked_files