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_migrate_default_branch.py b/git_migrate_default_branch.py
index 11ff4b6..735f049 100644
--- a/git_migrate_default_branch.py
+++ b/git_migrate_default_branch.py
@@ -15,88 +15,89 @@
 
 
 def GetGerritProject(remote_url):
-  """Returns Gerrit project name based on remote git URL."""
-  if remote_url is None:
-    raise RuntimeError('can\'t detect Gerrit project.')
-  project = urllib.parse.urlparse(remote_url).path.strip('/')
-  if project.endswith('.git'):
-    project = project[:-len('.git')]
-  # *.googlesource.com hosts ensure that Git/Gerrit projects don't start with
-  # 'a/' prefix, because 'a/' prefix is used to force authentication in
-  # gitiles/git-over-https protocol. E.g.,
-  # https://chromium.googlesource.com/a/v8/v8 refers to the same repo/project
-  # as
-  # https://chromium.googlesource.com/v8/v8
-  if project.startswith('a/'):
-    project = project[len('a/'):]
-  return project
+    """Returns Gerrit project name based on remote git URL."""
+    if remote_url is None:
+        raise RuntimeError('can\'t detect Gerrit project.')
+    project = urllib.parse.urlparse(remote_url).path.strip('/')
+    if project.endswith('.git'):
+        project = project[:-len('.git')]
+    # *.googlesource.com hosts ensure that Git/Gerrit projects don't start with
+    # 'a/' prefix, because 'a/' prefix is used to force authentication in
+    # gitiles/git-over-https protocol. E.g.,
+    # https://chromium.googlesource.com/a/v8/v8 refers to the same repo/project
+    # as
+    # https://chromium.googlesource.com/v8/v8
+    if project.startswith('a/'):
+        project = project[len('a/'):]
+    return project
 
 
 def GetGerritHost(git_host):
-  parts = git_host.split('.')
-  parts[0] = parts[0] + '-review'
-  return '.'.join(parts)
+    parts = git_host.split('.')
+    parts[0] = parts[0] + '-review'
+    return '.'.join(parts)
 
 
 def main():
-  remote = git_common.run('remote')
-  # Use first remote as source of truth
-  remote = remote.split("\n")[0]
-  if not remote:
-    raise RuntimeError('Could not find any remote')
-  url = scm.GIT.GetConfig(git_common.repo_root(), 'remote.%s.url' % remote)
-  host = urllib.parse.urlparse(url).netloc
-  if not host:
-    raise RuntimeError('Could not find remote host')
+    remote = git_common.run('remote')
+    # Use first remote as source of truth
+    remote = remote.split("\n")[0]
+    if not remote:
+        raise RuntimeError('Could not find any remote')
+    url = scm.GIT.GetConfig(git_common.repo_root(), 'remote.%s.url' % remote)
+    host = urllib.parse.urlparse(url).netloc
+    if not host:
+        raise RuntimeError('Could not find remote host')
 
-  project_head = gerrit_util.GetProjectHead(GetGerritHost(host),
-                                            GetGerritProject(url))
-  if project_head != 'refs/heads/main':
-    raise RuntimeError("The repository is not migrated yet.")
+    project_head = gerrit_util.GetProjectHead(GetGerritHost(host),
+                                              GetGerritProject(url))
+    if project_head != 'refs/heads/main':
+        raise RuntimeError("The repository is not migrated yet.")
 
-  # User may have set to fetch only old default branch. Ensure fetch is tracking
-  # main too.
-  git_common.run('config', '--unset-all',
-                 'remote.origin.fetch', 'refs/heads/*')
-  git_common.run('config', '--add',
-                 'remote.origin.fetch', '+refs/heads/*:refs/remotes/origin/*')
-  logging.info("Running fetch...")
-  git_common.run('fetch', remote)
-  logging.info("Updating remote HEAD...")
-  git_common.run('remote', 'set-head', '-a', remote)
+    # User may have set to fetch only old default branch. Ensure fetch is
+    # tracking main too.
+    git_common.run('config', '--unset-all', 'remote.origin.fetch',
+                   'refs/heads/*')
+    git_common.run('config', '--add', 'remote.origin.fetch',
+                   '+refs/heads/*:refs/remotes/origin/*')
+    logging.info("Running fetch...")
+    git_common.run('fetch', remote)
+    logging.info("Updating remote HEAD...")
+    git_common.run('remote', 'set-head', '-a', remote)
 
-  branches = git_common.get_branches_info(True)
-
-  if 'master' in branches:
-    logging.info("Migrating master branch...")
-    if 'main' in branches:
-      logging.info('You already have master and main branch, consider removing '
-                   'master manually:\n'
-                   ' $ git branch -d master\n')
-    else:
-      git_common.run('branch', '-m', 'master', 'main')
     branches = git_common.get_branches_info(True)
 
-  for name in branches:
-    branch = branches[name]
-    if not branch:
-      continue
+    if 'master' in branches:
+        logging.info("Migrating master branch...")
+        if 'main' in branches:
+            logging.info(
+                'You already have master and main branch, consider removing '
+                'master manually:\n'
+                ' $ git branch -d master\n')
+        else:
+            git_common.run('branch', '-m', 'master', 'main')
+        branches = git_common.get_branches_info(True)
 
-    if 'master' in branch.upstream:
-      logging.info("Migrating %s branch..." % name)
-      new_upstream = branch.upstream.replace('master', 'main')
-      git_common.run('branch', '--set-upstream-to', new_upstream, name)
-      git_common.remove_merge_base(name)
+    for name in branches:
+        branch = branches[name]
+        if not branch:
+            continue
+
+        if 'master' in branch.upstream:
+            logging.info("Migrating %s branch..." % name)
+            new_upstream = branch.upstream.replace('master', 'main')
+            git_common.run('branch', '--set-upstream-to', new_upstream, name)
+            git_common.remove_merge_base(name)
 
 
 if __name__ == '__main__':
-  fix_encoding.fix_encoding()
-  logging.basicConfig(level=logging.INFO)
-  with metrics.collector.print_notice_and_exit():
-    try:
-      logging.info("Starting migration")
-      main()
-      logging.info("Migration completed")
-    except RuntimeError as e:
-      logging.error("Error %s" % str(e))
-      sys.exit(1)
+    fix_encoding.fix_encoding()
+    logging.basicConfig(level=logging.INFO)
+    with metrics.collector.print_notice_and_exit():
+        try:
+            logging.info("Starting migration")
+            main()
+            logging.info("Migration completed")
+        except RuntimeError as e:
+            logging.error("Error %s" % str(e))
+            sys.exit(1)