2019-02-22 07:48:05 -08:00

65 lines
1.6 KiB
Python

#!/usr/bin/python3
"""Fuzzy-find a file and check which package owns it.
Dependencies
============
* fzf
* mlocate
"""
import argparse
import subprocess
# ========== Constants ==========
# Commands
PACMAN_CMD = '/usr/bin/pacman'
FZF_CMD = '/usr/bin/fzf'
FZF_OPTS = ['--read0', '--select-1', '--exit-0', '--print0']
LOCATE_CMD = '/usr/bin/locate'
LOCATE_OPTS = ['--all', '--ignore-case', '--null']
LOCALE = 'utf-8'
# ========== Functions ==========
def run_fzf(files):
"""Run fzf on a stream of searched files for the user to select.
:param files: stream of null-terminated files to read
:type files: bytes stream (stdout of a completed process)
:returns: selected file
:rtype: str
"""
selected_file = subprocess.run([FZF_CMD] + FZF_OPTS,
input=files,
stdout=subprocess.PIPE).stdout
return selected_file.decode(LOCALE).strip('\x00')
def locate_files(patterns):
"""Use a locate-based program to locate files, then pass to fzf.
:param patterns: patterns to pass to locate
:type patterns: list
:returns: path of user-selected file
:rtype: bytes
"""
cmd = [LOCATE_CMD] + LOCATE_OPTS
cmd.extend(patterns)
return subprocess.run(cmd, capture_output=True).stdout
# ========== Main Script ==========
parser = argparse.ArgumentParser()
parser.add_argument('patterns',
nargs='+',
help='file pattern to search for')
args = parser.parse_args()
files = locate_files(args.patterns)
selected_file = run_fzf(files)
subprocess.run([PACMAN_CMD, '-Qo', selected_file])