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ctagsplugin.py
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ctagsplugin.py
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#coding: utf8
#################################### IMPORTS ###################################
# Std Libs
import functools
import glob
import os
import pprint
import re
import string
import threading
from contextlib import contextmanager
from itertools import chain
from operator import itemgetter as iget
from os.path import join, normpath, dirname
from collections import defaultdict
################################ SUBLIME IMPORTS ###############################
# Sublime Libs
import sublime
import sublime_plugin
from sublime import status_message
################################## APP IMPORTS #################################
# Ctags
import ctags
from ctags import (FILENAME, parse_tag_lines, PATH_ORDER, SYMBOL, Tag, TagFile)
################################### SETTINGS ###################################
def get_settings():
return sublime.load_settings("CTags.sublime-settings")
def get_setting(key, default=None, view=None):
try:
if view == None:
view = sublime.active_window().active_view()
s = view.settings()
if s.has("ctags_%s" % key):
return s.get("ctags_%s" % key)
except:
pass
return get_settings().get(key, default)
setting = get_setting
################################### CONSTANTS ##################################
OBJECT_PUNCTUATORS = {
'class' : '.',
'struct' : '::',
'function' : '/',
}
ENTITY_SCOPE = "entity.name.function, entity.name.type, meta.toc-list"
RUBY_SPECIAL_ENDINGS = "\?|!"
RUBY_SCOPES = ".*(ruby|rails).*"
################################# AAA* IMPORTS #################################
# Inlined 07/26/11 20:39:51#
############################
ON_LOAD = sublime_plugin.all_callbacks['on_load']
RE_SPECIAL_CHARS = re.compile ( #as “f
'(\\\\|\\*|\\+|\\?|\\||\\{|\\}|\\[|\\]|\\(|\\)|\\^|\\$|\\.|\\#|\\ )' )
def escape_regex(s):
return RE_SPECIAL_CHARS.sub(lambda m: '\\%s' % m.group(1), s)
def select(view, region):
sel_set = view.sel()
sel_set.clear()
sel_set.add(region)
view.show(region)
def in_main(f):
@functools.wraps(f)
def done_in_main(*args, **kw):
sublime.set_timeout(functools.partial(f, *args, **kw), 0)
return done_in_main
# TODO: allow thread per tag file. That makes more sense.
def threaded(finish=None, msg="Thread already running"):
def decorator(func):
func.running = 0
@functools.wraps(func)
def threaded(*args, **kwargs):
def run():
try:
result = func(*args, **kwargs)
if result is None:
result = ()
elif not isinstance(result, tuple):
result = (result, )
if finish:
sublime.set_timeout (
functools.partial(finish, args[0], *result), 0
)
finally:
func.running = 0
if not func.running:
func.running = 1
t = threading.Thread(target=run)
t.setDaemon(True)
t.start()
else:
sublime.status_message(msg)
threaded.func = func
return threaded
return decorator
class one_shot(object):
def __init__(self):
self.callbacks.append(self)
self.remove = lambda: self.callbacks.remove(self)
@contextmanager
def edition(view):
edit = view.begin_edit()
try:
yield
finally:
view.end_edit(edit)
def on_load(f=None, window=None, encoded_row_col=True, begin_edit=False):
window = window or sublime.active_window()
def wrapper(cb):
if not f: return cb(window.active_view())
view = window.open_file( normpath(f), encoded_row_col )
def wrapped():
if begin_edit:
with edition(view): cb(view)
else: cb(view)
if view.is_loading():
class set_on_load(one_shot):
callbacks = ON_LOAD
def on_load(self, view):
try:wrapped()
finally: self.remove()
set_on_load()
else: wrapped()
return wrapper
#################################### HELPERS ###################################
def view_fn(v): return v.file_name() or '.'
def find_tags_relative_to(file_name):
if not file_name: return None
dirs = dirname(normpath(file_name)).split(os.path.sep)
while dirs:
joined = os.path.sep.join(dirs + ['.tags'])
if os.path.exists(joined) and not os.path.isdir(joined): return joined
else: dirs.pop()
return None
def alternate_tags_paths(view, tags_file):
tags_paths = '%s_search_paths' % tags_file
search_paths = [tags_file]
if os.path.exists(tags_paths):
search_paths.extend(open(tags_paths).read().split('\n'))
try:
for (selector, platform), path in setting('extra_tag_paths'):
if ( view.match_selector(view.sel()[0].begin(), selector) and
sublime.platform() == platform ):
search_paths.append(path)
except Exception, e:
print e
if os.path.exists(tags_paths):
for extrafile in setting('extra_tag_files'):
search_paths.append(normpath(join(dirname(tags_file), extrafile)))
# Ok, didn't found the .tags file under the viewed file.
# Let's look in the currently openened folder
for folder in view.window().folders():
search_paths.append(normpath(join(folder, '.tags')))
for extrafile in setting('extra_tag_files'):
search_paths.append(normpath(join(folder, extrafile)))
return set(p for p in search_paths if p and os.path.exists(p))
def reached_top_level_folders(folders, oldpath, path):
if oldpath == path:
return True
for folder in folders:
if folder[:len(path)] == path:
return True
if path == os.path.dirname(folder):
return True
return False
def find_top_folder(view, filename):
folders = view.window().folders()
path = os.path.dirname(filename)
# We don't have any folders open, return the folder this file is in
if len(folders) == 0:
return path
oldpath = ''
while not reached_top_level_folders(folders, oldpath, path):
oldpath = path
path = os.path.dirname(path)
return path
################################# SCROLL TO TAG ################################
def find_with_scope(view, pattern, scope, start_pos=0, cond=True, flags=0):
max_pos = view.size()
while start_pos < max_pos:
f = view.find(pattern[:-5] + "$", start_pos, flags )
if not f or view.match_selector( f.begin(), scope) is cond:
break
else:
start_pos = f.end()
return f
def find_source(view, pattern, start_at, flags=sublime.LITERAL):
return find_with_scope (
view,
pattern, "comment,string", start_at, False, flags )
def follow_tag_path(view, tag_path, pattern):
regions = [sublime.Region(0, 0)]
for p in list(tag_path)[1:-1]:
while True: #.end() is BUG!
regions.append(find_source(view, p, regions[-1].begin()))
if ( regions[-1] is None or (regions[-1] == regions[-2]) or
view.match_selector(regions[-1].begin(), ENTITY_SCOPE) ):
regions = [r for r in regions if r is not None]
break
start_at = max(regions, key=lambda r: r.begin()).begin() -1
# Find the ex_command pattern
pattern_region = find_source (
view, '^' + escape_regex(pattern), start_at, flags=0 )
if setting('debug'): # Leave a visual trail for easy debugging
regions = regions + ([pattern_region] if pattern_region else [])
view.erase_regions('tag_path')
view.add_regions('tag_path', regions, 'comment', 1)
return pattern_region.begin() -1 if pattern_region else start_at
def scroll_to_tag(view, tag, hook=None):
@on_load(join(tag.root_dir, tag.filename))
def and_then(view):
if tag.ex_command.isdigit():
look_from = view.text_point(int(tag.ex_command)-1, 0)
else:
look_from = follow_tag_path(view, tag.tag_path, tag.ex_command)
symbol_region = view.find(tag.ex_command, look_from, sublime.LITERAL)
select (
view,
(symbol_region or (
view.line(look_from + 1) if look_from else sublime.Region(0, 0))))
if hook: hook(view)
############################## FORMATTING HELPERS ##############################
def format_tag_for_quickopen(tag, file=1):
format = []
tag = ctags.Tag(tag)
f=''
for field in getattr(tag, "field_keys", []):
if field in PATH_ORDER:
punct = OBJECT_PUNCTUATORS.get(field, ' -> ')
f += string.Template (
' %($field)s$punct%(symbol)s' ).substitute(locals())
format = [(f or tag.symbol) % tag, tag.ex_command]
format[1] = format[1].strip()
if file: format.insert(1, tag.filename )
return format
def prepared_4_quickpanel(formatter=format_tag_for_quickopen, path_cols=()):
def compile_lists(sorter):
args, display = [], []
for t in sorter():
display.append(formatter(t))
args.append(t)
return args, display# format_for_display(display, paths=path_cols)
return compile_lists
############################ FILE COLLECTION HELPERS ###########################
def commonfolder(m):
if not m: return ''
s1 = min(m).split(os.path.sep)
s2 = max(m).split(os.path.sep)
for i, c in enumerate(s1):
if c != s2[i]:
return os.path.sep.join(s1[:i])
return os.path.sep.join(s1)
def files_to_search(view, tags_file, multiple=True):
if multiple:
return []
fn = view.file_name()
if not fn: return
tag_dir = normpath(dirname(tags_file))
common_prefix = commonfolder([tag_dir, fn])
files = [fn[len(common_prefix)+1:]]
return files
def get_current_file_suffix(view):
current = view.file_name()
fileName, fileExtension = os.path.splitext(current)
return fileExtension
############################### JUMPBACK COMMANDS ##############################
def different_mod_area(f1, f2, r1, r2):
same_file = f1 == f2
same_region = abs(r1[0] - r2[0]) < 40
return not same_file or not same_region
class JumpBack(sublime_plugin.WindowCommand):
def is_enabled(self, to=None):
if to == 'last_modification':
return len(self.mods) > 1
return len(self.last) > 0
def is_visible(self, to=None):
return setting("show_context_menus")
last = []
mods = []
def run(self, to=None):
if to == 'last_modification' and self.mods:
return self.lastModifications()
if not JumpBack.last: return status_message('JumpBack buffer empty')
f, sel = JumpBack.last.pop()
self.jump(f, eval(sel))
def lastModifications(self):
# Current Region
cv = sublime.active_window().active_view()
cr = eval(`cv.sel()[0]`)
cf = cv.file_name()
# Very latest, s)tarting modification
sf, sr = JumpBack.mods.pop(0)
if sf is None: return
sr = eval(sr)
in_different_mod_area = different_mod_area (sf, cf, cr, sr)
# Default J)ump F)ile and R)egion
jf, jr = sf, sr
if JumpBack.mods:
for i, (f, r) in enumerate(JumpBack.mods):
region = eval(r)
if different_mod_area(sf, f, sr, region):
break
del JumpBack.mods[:i]
if not in_different_mod_area:
jf, jr = f, region
if in_different_mod_area or not JumpBack.mods:
JumpBack.mods.insert(0, (jf, `jr`))
self.jump(jf, jr)
def jump(self, fn, sel):
@on_load(fn, begin_edit=True)
def and_then(view):
select(view, sublime.Region(*sel))
@classmethod
def append(cls, view):
fn = view.file_name()
if fn:
cls.last.append((fn, `view.sel()[0]`))
class JumpBackListener(sublime_plugin.EventListener):
def on_modified(self, view):
sel = view.sel()
if len(sel):
JumpBack.mods.insert(0, (view.file_name(), `sel[0]`))
del JumpBack.mods[100:]
################################ CTAGS COMMANDS ################################
def show_tag_panel(view, result, jump_directly_if_one):
if result not in (True, False, None):
args, display = result
if not args: return
def on_select(i):
if i != -1:
JumpBack.append(view)
scroll_to_tag(view, args[i])
( on_select(0) if jump_directly_if_one and len(args) == 1
else view.window().show_quick_panel (
display, on_select ) )
def ctags_goto_command(jump_directly_if_one=False):
def wrapper(f):
def command(self, edit, **args):
view = self.view
tags_file = find_tags_relative_to(view.file_name())
if not tags_file:
status_message("Can't find any relevant tags file")
return
result = f(self, self.view, args, tags_file)
show_tag_panel(self.view, result, jump_directly_if_one)
return command
return wrapper
def check_if_building(self, **args):
if rebuild_tags.build_ctags.func.running:
status_message('Please wait while tags are built')
else: return 1
def compile_filters(view):
filters = []
for selector, regexes in setting('filters', {}).items():
if view.match_selector (
view.sel() and view.sel()[0].begin() or 0, selector ):
filters.append(regexes)
return filters
def compile_definition_filters(view):
filters = []
for selector, regexes in setting('definition_filters', {}).items():
if view.match_selector (
view.sel() and view.sel()[0].begin() or 0, selector ):
filters.append(regexes)
return filters
######################### GOTO DEFINITION UNDER CURSOR #########################
class JumpToDefinition:
@staticmethod
def run(symbol, view, tags_file):
tags = {}
for tags_file in alternate_tags_paths(view, tags_file):
tags = (TagFile( tags_file, SYMBOL)
.get_tags_dict( symbol,
filters=compile_filters(view)) )
if tags: break
if not tags:
return status_message('Can\'t find "%s"' % symbol)
current_file = view.file_name().replace(dirname(tags_file) + os.sep, '')
def definition_cmp(a, b):
if normpath(a.tag_path[0]) == current_file:
return -1
if normpath(b.tag_path[0]) == current_file:
return 1
return 0
def_filters = compile_definition_filters(view)
def pass_def_filter(o):
for f in def_filters:
for k, v in f.items():
if k in o:
if re.match(v, o[k]):
return False
return True
@prepared_4_quickpanel()
def sorted_tags():
p_tags = filter(pass_def_filter, tags.get(symbol, []))
if not p_tags:
status_message('Can\'t find "%s"' % symbol)
p_tags = sorted(p_tags, key=iget('tag_path'))
if setting('definition_current_first', False):
p_tags = sorted(p_tags, cmp=definition_cmp)
return p_tags
return sorted_tags
class NavigateToDefinition(sublime_plugin.TextCommand):
is_enabled = check_if_building
def __init__(self, args):
sublime_plugin.TextCommand.__init__(self,args)
self.scopes = re.compile(RUBY_SCOPES)
self.endings = re.compile(RUBY_SPECIAL_ENDINGS)
def is_visible(self):
return setting("show_context_menus")
@ctags_goto_command(jump_directly_if_one=True)
def run(self, view, args, tags_file):
region = view.sel()[0]
if region.begin() == region.end(): #point
region = view.word(region)
if self.scopes.match(view.syntax_name(view.sel()[0].b)) is not None:
if self.endings.match(view.substr(sublime.Region(region.end(), region.end()+1))) is not None:
region = sublime.Region(region.begin(), region.end()+1)
symbol = view.substr(region)
return JumpToDefinition.run(symbol, view, tags_file)
class SearchForDefinition(sublime_plugin.WindowCommand):
is_enabled = check_if_building
def is_visible(self):
return setting("show_context_menus")
def run(self):
self.window.show_input_panel('','', self.on_done, self.on_change, self.on_cancel)
def on_done(self, symbol):
view = self.window.active_view()
tags_file = find_tags_relative_to(view.file_name())
if not tags_file:
status_message("Can't find any relevant tags file")
return
result = JumpToDefinition.run(symbol, view, tags_file)
show_tag_panel(view, result, True)
def on_change(self, text):
pass
def on_cancel(self):
pass
################################# SHOW SYMBOLS #################################
tags_cache = defaultdict(dict)
class ShowSymbols(sublime_plugin.TextCommand):
is_enabled = check_if_building
def is_visible(self):
return setting("show_context_menus")
@ctags_goto_command()
def run(self, view, args, tags_file):
if not tags_file: return
multi = args.get('type') == 'multi'
lang = args.get('type') == 'lang'
files = files_to_search(view, tags_file, multi)
if lang:
suffix = get_current_file_suffix(view)
key = suffix
else:
key = ",".join(files)
tags_file = tags_file + '_sorted_by_file'
base_path = find_top_folder(view, view.file_name())
def get_tags():
loaded = TagFile(tags_file, FILENAME)
if lang: return loaded.get_tags_dict_by_suffix(suffix, filters=compile_filters(view))
else: return loaded.get_tags_dict(*files, filters=compile_filters(view))
if key in tags_cache[base_path]:
print "loading symbols from cache"
tags = tags_cache[base_path][key]
else:
print "loading symbols from file"
tags = get_tags()
tags_cache[base_path][key] = tags
print "loaded [%d] symbols" % len(tags)
if not tags:
if multi:
view.run_command('show_symbols', {'type':'multi'})
else:
sublime.status_message(
'No symbols found **FOR CURRENT FILE**; Try Rebuild?' )
path_cols = (0, ) if len(files) > 1 or multi else ()
formatting = functools.partial( format_tag_for_quickopen,
file = bool(path_cols) )
@prepared_4_quickpanel(formatting, path_cols=())
def sorted_tags():
return sorted (
chain(*(tags[k] for k in tags)), key=iget('tag_path'))
return sorted_tags
################################# REBUILD CTAGS ################################
class rebuild_tags(sublime_plugin.TextCommand):
def run(self, edit, **args):
view=self.view
tag_dirs = []
if args.has_key("dirs"):
# User has requested to rebuild CTags for the specific folders (via context menu in Folders pane)
tag_dirs.extend(args["dirs"])
elif view.file_name() is not None:
# Rebuild and rebuild tags relative to the currently opened file
tag_dir = find_top_folder(view, view.file_name())
tag_dirs.append(tag_dir)
elif len(view.window().folders()) > 0:
# No file is open, rebuild tags for all opened folders
tag_dirs.extend(view.window().folders())
else:
status_message("Cannot build CTags: No file or folder open.")
return
tag_files = map(lambda t: join(t, ".tags"), tag_dirs)
# Any .tags file found when walking up the directory tree has precedence
def replace_with_parent_tags_if_exists(tag_file):
parent_tag_file = find_tags_relative_to(tag_file)
return parent_tag_file if parent_tag_file else tag_file
tag_files = set(map(replace_with_parent_tags_if_exists, tag_files))
# TODO: replace with sublime.ok_cancel_dialog or maybe just delete?
if 0: # not 1 or sublime.question_box('`ctags -R` in %s ?'% dirname(tag_file)):
return
command = setting('command', setting('ctags_command'))
self.build_ctags(command, tag_files)
GetAllCTagsList.ctags_list = [] # clear the cached ctags list
@threaded(msg="Already running CTags!")
def build_ctags(self, cmd, tag_files):
def tags_built(tag_file):
print 'Finished building %s' % tag_file
in_main(lambda: status_message('Finished building %s' % tag_file))()
in_main(lambda: tags_cache[dirname(tag_file)].clear())()
for tag_file in tag_files:
print 'Re/Building CTags for %s: Please be patient' % tag_file
in_main(lambda: status_message('Re/Building CTags for %s: Please be patient' % tag_file))()
ctags.build_ctags(cmd, tag_file)
tags_built(tag_file)
################################# AUTOCOMPLETE #################################
class GetAllCTagsList():
ctags_list = []
"""cache all the ctags list"""
def __init__(self, list):
self.ctags_list = list
class CTagsAutoComplete(sublime_plugin.EventListener):
def on_query_completions(self, view, prefix, locations):
if setting('autocomplete'):
prefix = prefix.strip().lower()
tags_path = view.window().folders()[0]+"/.tags"
sub_results = [v.extract_completions(prefix) for v in sublime.active_window().views()]
sub_results = [(item,item) for sublist in sub_results for item in sublist] #flatten
if GetAllCTagsList.ctags_list:
results = [sublist for sublist in GetAllCTagsList.ctags_list if sublist[0].lower().startswith(prefix)]
results = list(set(results).union(set(sub_results)))
results.sort()
return results
else:
tags = []
if (not view.window().folders() or not os.path.exists(tags_path)): #check if a project is open and the .tags file exists
return tags
f=os.popen("awk '{ print $1 }' '" + tags_path + "'")
for i in f.readlines():
tags.append([i.strip()])
tags = [(item,item) for sublist in tags for item in sublist] #flatten
tags = list(set(tags)) # make unique
tags.sort()
GetAllCTagsList.ctags_list = tags
results = [sublist for sublist in GetAllCTagsList.ctags_list if sublist[0].lower().startswith(prefix)]
results = list(set(results).union(set(sub_results)))
results.sort()
return results
##################################### TEST #####################################
class test_ctags(sublime_plugin.TextCommand):
routine = None
def run(self, edit, **args):
view=self.view
if self.routine is None:
self.routine = self.co_routine(view)
self.routine.next()
def next(self):
try:
self.routine.next()
except Exception, e:
print e
self.routine = None
def co_routine(self, view):
tag_file = find_tags_relative_to(view.file_name())
with open(tag_file) as tf:
tags = parse_tag_lines(tf, tag_class=Tag)
print 'Starting Test'
ex_failures = []
line_failures = []
for symbol, tag_list in tags.items():
for tag in tag_list:
tag.root_dir = dirname(tag_file)
def hook(av):
test_context = av.sel()[0]
if tag.ex_command.isdigit():
test_string = tag.symbol
else:
test_string = tag.ex_command
test_context = av.line(test_context)
if not ((av.substr(test_context) == test_string) #):
or
av.substr(test_context).startswith(test_string) ):
failure = 'FAILURE %s' % pprint.pformat(tag)
failure += av.file_name()
if setting('debug') and not sublime.question_box('%s\n\n\n' % failure):
self.routine = None
return sublime.set_clipboard(failure)
ex_failures.append(tag)
sublime.set_timeout( self.next, 5 )
scroll_to_tag(view, tag, hook)
yield
failures = line_failures + ex_failures
tags_tested = sum(len(v) for v in tags.values()) - len(failures)
view = sublime.active_window().new_file()
edit = view.begin_edit()
view.insert(edit, view.size(), '%s Tags Tested OK\n' % tags_tested)
view.insert(edit, view.size(), '%s Tags Failed' % len(failures))
view.end_edit(edit)
view.set_scratch(True)
view.set_name('CTags Test Results')
if failures:
sublime.set_clipboard(pprint.pformat(failures))
################################################################################