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58 lines
2.3 KiB
VimL
58 lines
2.3 KiB
VimL
" Author: w0rp <devw0rp@gmail.com>
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" Description: Special command formatting for creating temporary files and
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" passing buffer filenames easily.
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function! s:TemporaryFilename(buffer) abort
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let l:filename = fnamemodify(bufname(a:buffer), ':t')
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if empty(l:filename)
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" If the buffer's filename is empty, create a dummy filename.
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let l:ft = getbufvar(a:buffer, '&filetype')
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let l:filename = 'file' . ale#filetypes#GuessExtension(l:ft)
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endif
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" Create a temporary filename, <temp_dir>/<original_basename>
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" The file itself will not be created by this function.
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return tempname() . (has('win32') ? '\' : '/') . l:filename
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endfunction
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" Given a command string, replace every...
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" %s -> with the current filename
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" %t -> with the name of an unused file in a temporary directory
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" %% -> with a literal %
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function! ale#command#FormatCommand(buffer, command, pipe_file_if_needed) abort
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let l:temporary_file = ''
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let l:command = a:command
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" First replace all uses of %%, used for literal percent characters,
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" with an ugly string.
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let l:command = substitute(l:command, '%%', '<<PERCENTS>>', 'g')
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" Replace all %s occurences in the string with the name of the current
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" file.
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if l:command =~# '%s'
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let l:filename = fnamemodify(bufname(a:buffer), ':p')
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let l:command = substitute(l:command, '%s', '\=ale#Escape(l:filename)', 'g')
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endif
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if l:command =~# '%t'
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" Create a temporary filename, <temp_dir>/<original_basename>
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" The file itself will not be created by this function.
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let l:temporary_file = s:TemporaryFilename(a:buffer)
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let l:command = substitute(l:command, '%t', '\=ale#Escape(l:temporary_file)', 'g')
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endif
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" Finish formatting so %% becomes %.
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let l:command = substitute(l:command, '<<PERCENTS>>', '%', 'g')
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if a:pipe_file_if_needed && empty(l:temporary_file)
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" If we are to send the Vim buffer to a command, we'll do it
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" in the shell. We'll write out the file to a temporary file,
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" and then read it back in, in the shell.
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let l:temporary_file = s:TemporaryFilename(a:buffer)
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let l:command = l:command . ' < ' . ale#Escape(l:temporary_file)
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endif
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return [l:temporary_file, l:command]
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endfunction
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