switch to 4 space indent

Leave the recipes/ code at 2 space to match the rest of the recipes
project in other repos.

Reformatted using:
files=( $(
	git ls-tree -r --name-only HEAD | \
		grep -Ev -e '^(third_party|recipes)/' | \
		grep '\.py$';
	git grep -l '#!/usr/bin/env.*python' | grep -v '\.py$'
) )
parallel ./yapf -i -- "${files[@]}"
~/chromiumos/chromite/contrib/reflow_overlong_comments "${files[@]}"

The files that still had strings that were too long were manually
reformatted because they were easy and only a few issues.
autoninja.py
clang_format.py
download_from_google_storage.py
fix_encoding.py
gclient_utils.py
git_cache.py
git_common.py
git_map_branches.py
git_reparent_branch.py
gn.py
my_activity.py
owners_finder.py
presubmit_canned_checks.py
reclient_helper.py
reclientreport.py
roll_dep.py
rustfmt.py
siso.py
split_cl.py
subcommand.py
subprocess2.py
swift_format.py
upload_to_google_storage.py

These files still had lines (strings) that were too long, so the pylint
warnings were suppressed with a TODO.
auth.py
gclient.py
gclient_eval.py
gclient_paths.py
gclient_scm.py
gerrit_util.py
git_cl.py
presubmit_canned_checks.py
presubmit_support.py
scm.py

Change-Id: Ia6535c4f2c48d46b589ec1e791dde6c6b2ea858f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4836379
Commit-Queue: Josip Sokcevic <sokcevic@chromium.org>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>
diff --git a/git_new_branch.py b/git_new_branch.py
index bdf8bcf..3087588 100755
--- a/git_new_branch.py
+++ b/git_new_branch.py
@@ -13,70 +13,78 @@
 import subprocess2
 
 
-def create_new_branch(
-    branch_name, upstream_current=False, upstream=None, inject_current=False):
-  upstream = upstream or git_common.root()
-  try:
-    if inject_current:
-      below = git_common.current_branch()
-      if below is None:
-        raise Exception('no current branch')
-      above = git_common.upstream(below)
-      if above is None:
-        raise Exception('branch %s has no upstream' % (below))
-      git_common.run('checkout', '--track', above, '-b', branch_name)
-      git_common.run('branch', '--set-upstream-to', branch_name, below)
-    elif upstream_current:
-      git_common.run('checkout', '--track', '-b', branch_name)
-    else:
-      if upstream in git_common.tags():
-        # TODO(iannucci): ensure that basis_ref is an ancestor of HEAD?
-        git_common.run(
-            'checkout', '--no-track', '-b', branch_name,
-            git_common.hash_one(upstream))
-        git_common.set_config('branch.%s.remote' % branch_name, '.')
-        git_common.set_config('branch.%s.merge' % branch_name, upstream)
-      else:
-        # TODO(iannucci): Detect unclean workdir then stash+pop if we need to
-        # teleport to a conflicting portion of history?
-        git_common.run('checkout', '--track', upstream, '-b', branch_name)
-    git_common.get_or_create_merge_base(branch_name)
-  except subprocess2.CalledProcessError as cpe:
-    sys.stdout.write(cpe.stdout.decode('utf-8', 'replace'))
-    sys.stderr.write(cpe.stderr.decode('utf-8', 'replace'))
-    return 1
-  sys.stderr.write('Switched to branch %s.\n' % branch_name)
-  return 0
+def create_new_branch(branch_name,
+                      upstream_current=False,
+                      upstream=None,
+                      inject_current=False):
+    upstream = upstream or git_common.root()
+    try:
+        if inject_current:
+            below = git_common.current_branch()
+            if below is None:
+                raise Exception('no current branch')
+            above = git_common.upstream(below)
+            if above is None:
+                raise Exception('branch %s has no upstream' % (below))
+            git_common.run('checkout', '--track', above, '-b', branch_name)
+            git_common.run('branch', '--set-upstream-to', branch_name, below)
+        elif upstream_current:
+            git_common.run('checkout', '--track', '-b', branch_name)
+        else:
+            if upstream in git_common.tags():
+                # TODO(iannucci): ensure that basis_ref is an ancestor of HEAD?
+                git_common.run('checkout', '--no-track', '-b', branch_name,
+                               git_common.hash_one(upstream))
+                git_common.set_config('branch.%s.remote' % branch_name, '.')
+                git_common.set_config('branch.%s.merge' % branch_name, upstream)
+            else:
+                # TODO(iannucci): Detect unclean workdir then stash+pop if we
+                # need to teleport to a conflicting portion of history?
+                git_common.run('checkout', '--track', upstream, '-b',
+                               branch_name)
+        git_common.get_or_create_merge_base(branch_name)
+    except subprocess2.CalledProcessError as cpe:
+        sys.stdout.write(cpe.stdout.decode('utf-8', 'replace'))
+        sys.stderr.write(cpe.stderr.decode('utf-8', 'replace'))
+        return 1
+    sys.stderr.write('Switched to branch %s.\n' % branch_name)
+    return 0
+
 
 def main(args):
-  parser = argparse.ArgumentParser(
-    formatter_class=argparse.ArgumentDefaultsHelpFormatter,
-    description=__doc__,
-  )
-  parser.add_argument('branch_name')
-  g = parser.add_mutually_exclusive_group()
-  g.add_argument('--upstream-current', '--upstream_current',
-                 action='store_true',
-                 help='set upstream branch to current branch.')
-  g.add_argument('--upstream', metavar='REF',
-                 help='upstream branch (or tag) to track.')
-  g.add_argument('--inject-current', '--inject_current',
-                 action='store_true',
-                 help='new branch adopts current branch\'s upstream,' +
-                 ' and new branch becomes current branch\'s upstream.')
-  g.add_argument('--lkgr', action='store_const', const='lkgr', dest='upstream',
-                 help='set basis ref for new branch to lkgr.')
+    parser = argparse.ArgumentParser(
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+        description=__doc__,
+    )
+    parser.add_argument('branch_name')
+    g = parser.add_mutually_exclusive_group()
+    g.add_argument('--upstream-current',
+                   '--upstream_current',
+                   action='store_true',
+                   help='set upstream branch to current branch.')
+    g.add_argument('--upstream',
+                   metavar='REF',
+                   help='upstream branch (or tag) to track.')
+    g.add_argument('--inject-current',
+                   '--inject_current',
+                   action='store_true',
+                   help='new branch adopts current branch\'s upstream,' +
+                   ' and new branch becomes current branch\'s upstream.')
+    g.add_argument('--lkgr',
+                   action='store_const',
+                   const='lkgr',
+                   dest='upstream',
+                   help='set basis ref for new branch to lkgr.')
 
-  opts = parser.parse_args(args)
+    opts = parser.parse_args(args)
 
-  return create_new_branch(
-      opts.branch_name, opts.upstream_current, opts.upstream,
-      opts.inject_current)
+    return create_new_branch(opts.branch_name, opts.upstream_current,
+                             opts.upstream, opts.inject_current)
 
 
 if __name__ == '__main__':  # pragma: no cover
-  try:
-    sys.exit(main(sys.argv[1:]))
-  except KeyboardInterrupt:
-    sys.stderr.write('interrupted\n')
-    sys.exit(1)
+    try:
+        sys.exit(main(sys.argv[1:]))
+    except KeyboardInterrupt:
+        sys.stderr.write('interrupted\n')
+        sys.exit(1)