61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
import neovim
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import os
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import sys
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import fileinput
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import subprocess
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import locket
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@neovim.plugin
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class NeotagsPlugin(object):
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def __init__(self, nvim):
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self.nvim = nvim
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# TODO: Make configurable
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self.tags_filename = 'tags'
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# TODO: Make configurable
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self.ctags_cmd = 'ctags'
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# Perhaps fetch debugging settings?
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# Check whether 'FileWritePost' is necessary
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@neovim.autocmd('BufWritePost', pattern='*', eval='expand("<afile>:p")')
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def update_tags_for_file(self, filename):
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self.filename = filename
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pwd = self.nvim.funcs.execute('pwd').strip()
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self.relative_filename = self.filename.replace(pwd, '').lstrip('\/')
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try:
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with locket.lock_file(self.get_tags_file() + '.lock'):
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self.log('Start updating tags for: ' + self.relative_filename)
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self.strip_existing_tags()
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self.generate_tags()
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self.log('Tags updated for: ' + self.relative_filename)
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except ValueError:
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self.log('No tags file found')
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def strip_existing_tags(self):
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with fileinput.input(files=self.get_tags_file(), inplace=True, backup='.bak') as f:
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for line in f:
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if self.relative_filename not in line:
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sys.stdout.write(line)
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def generate_tags(self):
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subprocess.run([
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self.ctags_cmd,
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'-f',
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self.get_tags_file(),
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'-a',
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"%s" % self.relative_filename
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])
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def get_tags_file(self):
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start_dir = os.path.dirname(self.filename)
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for dirpath, __, filenames in os.walk(start_dir, topdown=False):
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if self.tags_filename in filenames:
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return os.path.join(dirpath, self.tags_filename)
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raise ValueError('No tags file found in parent folders of given file')
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def log(self, message):
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self.nvim.out_write(message + "\n")
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