68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
import neovim
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import sys
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import pathlib
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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')
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self.strip_existing_tags()
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self.generate_tags()
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self.log('Tags for file: "%s"' % 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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tags_f = self.get_tags_file()
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with fileinput.input(files=tags_f, 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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path = pathlib.Path(self.filename)
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self.log('Test: ' + str(path.with_name(self.tags_filename)))
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if path.with_name(self.tags_filename).is_file():
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return str(path.with_name(self.tags_filename))
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for folder in path.parents:
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self.log('Test: ' + str(folder.with_name(self.tags_filename)))
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if folder.with_name(self.tags_filename).is_file():
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return str(folder.with_name(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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