SolarFM/plugins/searcher/mixins/grep_search_mixin.py

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# Python imports
import time
import threading
import subprocess
import signal
import json
import shlex
from datetime import datetime
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# Lib imports
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
from gi.repository import GLib
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# Application imports
from ..widgets.grep_preview_widget import GrepPreviewWidget
# NOTE: Threads WILL NOT die with parent's destruction.
def threaded(fn):
def wrapper(*args, **kwargs):
threading.Thread(target=fn, args=args, kwargs=kwargs, daemon=False).start()
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return wrapper
# NOTE: Threads WILL die with parent's destruction.
def daemon_threaded(fn):
def wrapper(*args, **kwargs):
threading.Thread(target=fn, args=args, kwargs=kwargs, daemon=True).start()
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return wrapper
class GrepSearchMixin:
def _run_grep_query(self, widget=None, eve=None):
self._queue_grep = True
if not self._grep_watcher_running:
self._grep_watcher_running = True
self._stop_grep_query()
self.reset_grep_box()
self.run_grep_watcher(query=widget)
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@daemon_threaded
def run_grep_watcher(self, query):
while True:
if self._queue_grep:
self._queue_grep = False
time.sleep(1)
# NOTE: Hold call to translate if we're still typing/updating...
if self._queue_grep:
continue
# NOTE: If query create new process and do all new loop.
if query:
self.pause_fifo_update = False
GLib.idle_add(self._exec_grep_query, query)
self._grep_watcher_running = False
break
def _stop_grep_query(self, widget=None, eve=None):
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# NOTE: Freeze IPC consumption
self.pause_fifo_update = True
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self.grep_query = ""
dt = datetime.now()
self.grep_time_stamp = datetime.timestamp(dt) # NOTE: Get timestamp
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# NOTE: Kill the former process
if self._grep_proc:
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if self._grep_proc.poll() == None:
self._grep_proc.terminate()
while self._grep_proc.poll() == None:
...
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self._grep_proc = None
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def _exec_grep_query(self, widget=None, eve=None):
query = widget.get_text()
if not query.strip() in ("", None):
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self.grep_query = query
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target_dir = shlex.quote( self._fm_state.tab.get_current_directory() )
command = ["python", f"{self.path}/utils/search.py", "-t", "grep_search", "-d", f"{target_dir}", "-q", f"{query}"]
self._grep_proc = subprocess.Popen(command, cwd=self.path, stdin=None, stdout=None, stderr=None)
def _load_grep_ui(self, data):
Gtk.main_iteration()
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if not data in ("", None):
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jdata = json.loads( data )
jkeys = jdata.keys()
for key in jkeys:
sub_keys = jdata[key].keys()
grep_result = jdata[key]
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widget = GrepPreviewWidget(key, sub_keys, grep_result, self.grep_query)
self._grep_list.add(widget)