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tools: in performance-log-viewer.py, cache source file lookups

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In the performance-log viewer, cache the results of source-file
lookups, to speed up future lookups.
This commit is contained in:
Ell 2018-09-30 05:34:59 -04:00
parent 0f38709259
commit 97498017c0
1 changed files with 23 additions and 15 deletions
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38
tools/performance-log-viewer.py
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@ -82,28 +82,36 @@ editor_command = os.environ.get ("PERFORMANCE_LOG_VIEWER_EDITOR",
editor_command += " &" editor_command += " &"
def find_file (filename): def find_file (filename):
filename = re.sub ("[\\\\/]", GLib.DIR_SEPARATOR_S, filename) def lookup (filename):
filename = re.sub ("[\\\\/]", GLib.DIR_SEPARATOR_S, filename)
if GLib.path_is_absolute (filename): if GLib.path_is_absolute (filename):
file = Gio.File.new_for_path (filename) file = Gio.File.new_for_path (filename)
if file.query_exists ():
return file
for path in search_path:
rest = filename
while rest:
file = Gio.File.new_for_path (GLib.build_filenamev ((path, rest)))
if file.query_exists (): if file.query_exists ():
return file return file
sep = rest.find (GLib.DIR_SEPARATOR_S) for path in search_path:
rest = filename
rest = rest[sep + 1:] if sep >= 0 else "" while rest:
file = Gio.File.new_for_path (GLib.build_filenamev ((path, rest)))
return None if file.query_exists ():
return file
sep = rest.find (GLib.DIR_SEPARATOR_S)
rest = rest[sep + 1:] if sep >= 0 else ""
return None
if filename not in find_file.cache:
find_file.cache[filename] = lookup (filename)
return find_file.cache[filename]
find_file.cache = {}
VariableType = namedtuple ("VariableType", VariableType = namedtuple ("VariableType",
("parse", "format", "format_numeric")) ("parse", "format", "format_numeric"))