[depot_tools] Use logging.warning

logging.warn is deprecated and should be replaced with logging.warning.

Bug:1097402
Change-Id: I55ce007bec47608eeafcf3cd9ac2b90f60073115
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2575621
Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
Commit-Queue: Gavin Mak <gavinmak@google.com>

git_cache.py

@@ -360,10 +360,11 @@ class Mirror(object):
       for fetchspec in config_fetchspecs.splitlines():
         self.fetch_specs.add(self.parse_fetch_spec(fetchspec))
     except subprocess.CalledProcessError:
-      logging.warn('Tried and failed to preserve remote.origin.fetch from the '
-                   'existing cache directory.  You may need to manually edit '
-                   '%s and "git cache fetch" again.'
-                   % os.path.join(self.mirror_path, 'config'))
+      logging.warning(
+          'Tried and failed to preserve remote.origin.fetch from the '
+          'existing cache directory.  You may need to manually edit '
+          '%s and "git cache fetch" again.' %
+          os.path.join(self.mirror_path, 'config'))
 
   def _ensure_bootstrapped(
       self, depth, bootstrap, reset_fetch_config, force=False):
@@ -381,7 +382,7 @@ class Mirror(object):
 
     if not should_bootstrap:
       if depth and os.path.exists(os.path.join(self.mirror_path, 'shallow')):
-        logging.warn(
+        logging.warning(
             'Shallow fetch requested, but repo cache already exists.')
       return
 
@@ -408,10 +409,10 @@ class Mirror(object):
         self.RunGit(['init', '--bare'], cwd=self.mirror_path)
       else:
         # Bootstrap failed, previous cache exists; warn and continue.
-        logging.warn(
+        logging.warning(
             'Git cache has a lot of pack files (%d). Tried to re-bootstrap '
-            'but failed. Continuing with non-optimized repository.'
-            % len(pack_files))
+            'but failed. Continuing with non-optimized repository.' %
+            len(pack_files))
 
   def _fetch(self,
              rundir,
@@ -444,7 +445,7 @@ class Mirror(object):
       except subprocess.CalledProcessError:
         if spec == '+refs/heads/*:refs/heads/*':
           raise ClobberNeeded()  # Corrupted cache.
-        logging.warn('Fetch of %s failed' % spec)
+        logging.warning('Fetch of %s failed' % spec)
 
   def populate(self,
                depth=None,
@@ -565,9 +566,9 @@ class Mirror(object):
       f = os.path.join(pack_dir, f)
       try:
         os.remove(f)
-        logging.warn('Deleted stale temporary pack file %s' % f)
+        logging.warning('Deleted stale temporary pack file %s' % f)
       except OSError:
-        logging.warn('Unable to delete temporary pack file %s' % f)
+        logging.warning('Unable to delete temporary pack file %s' % f)
 
 
 @subcommand.usage('[url of repo to check for caching]')
@@ -772,7 +773,7 @@ class OptionParser(optparse.OptionParser):
       if global_cache_dir and (
           os.path.abspath(options.cache_dir) !=
           os.path.abspath(global_cache_dir)):
-        logging.warn('Overriding globally-configured cache directory.')
+        logging.warning('Overriding globally-configured cache directory.')
       Mirror.SetCachePath(options.cache_dir)
 
     return options, args

git_cl.py

@@ -1083,11 +1083,12 @@ class Changelist(object):
           remote, = remotes
         elif 'origin' in remotes:
           remote = 'origin'
-          logging.warn('Could not determine which remote this change is '
-                       'associated with, so defaulting to "%s".' % self._remote)
+          logging.warning('Could not determine which remote this change is '
+                          'associated with, so defaulting to "%s".' %
+                          self._remote)
         else:
-          logging.warn('Could not determine which remote this change is '
-                       'associated with.')
+          logging.warning('Could not determine which remote this change is '
+                          'associated with.')
         branch = 'HEAD'
       if branch.startswith('refs/remotes'):
         self._remote = (remote, branch)

ninjalog_uploader.py

@@ -193,7 +193,7 @@ def main():
 
   ninjalog = args.ninjalog or GetNinjalog(args.cmdline)
   if not os.path.isfile(ninjalog):
-    logging.warn("ninjalog is not found in %s", ninjalog)
+    logging.warning("ninjalog is not found in %s", ninjalog)
     return 1
 
   # We assume that each ninja invocation interval takes at least 2 seconds.
@@ -221,7 +221,8 @@ def main():
                                     headers={'Content-Encoding': 'gzip'})
 
   if resp_headers.status != 200:
-    logging.warn("unexpected status code for response: %s", resp_headers.status)
+    logging.warning("unexpected status code for response: %s",
+                    resp_headers.status)
     return 1
 
   logging.info('response header: %s', resp_headers)

presubmit_support.py

@@ -1901,7 +1901,7 @@ def canned_check_filter(method_names):
   try:
     for method_name in method_names:
       if not hasattr(presubmit_canned_checks, method_name):
-        logging.warn('Skipping unknown "canned" check %s' % method_name)
+        logging.warning('Skipping unknown "canned" check %s' % method_name)
         continue
       filtered[method_name] = getattr(presubmit_canned_checks, method_name)
       setattr(presubmit_canned_checks, method_name, lambda *_a, **_kw: [])

recipes/recipes.py

@@ -203,8 +203,8 @@ def checkout_engine(engine_path, repo_root, recipes_cfg_path):
         os.remove(index_lock)
       except OSError as exc:
         if exc.errno != errno.ENOENT:
-          logging.warn('failed to remove %r, reset will fail: %s', index_lock,
-                       exc)
+          logging.warning('failed to remove %r, reset will fail: %s',
+                          index_lock, exc)
       _git_check_call(['reset', '-q', '--hard', revision], cwd=engine_path)
 
     # If the engine has refactored/moved modules we need to clean all .pyc files