forked from github-mirrors/ale
119 lines
4.1 KiB
VimL
119 lines
4.1 KiB
VimL
" Author: w0rp <devw0rp@gmail.com>
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" Description: Functions for working with paths in the filesystem.
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" Given a buffer and a filename, find the nearest file by searching upwards
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" through the paths relative to the given buffer.
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function! ale#path#FindNearestFile(buffer, filename) abort
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let l:buffer_filename = fnamemodify(bufname(a:buffer), ':p')
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let l:relative_path = findfile(a:filename, l:buffer_filename . ';')
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if !empty(l:relative_path)
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return fnamemodify(l:relative_path, ':p')
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endif
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return ''
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endfunction
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" Given a buffer and a directory name, find the nearest directory by searching upwards
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" through the paths relative to the given buffer.
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function! ale#path#FindNearestDirectory(buffer, directory_name) abort
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let l:buffer_filename = fnamemodify(bufname(a:buffer), ':p')
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let l:relative_path = finddir(a:directory_name, l:buffer_filename . ';')
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if !empty(l:relative_path)
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return fnamemodify(l:relative_path, ':p')
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endif
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return ''
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endfunction
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" Given a buffer, a string to search for, an a global fallback for when
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" the search fails, look for a file in parent paths, and if that fails,
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" use the global fallback path instead.
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function! ale#path#ResolveLocalPath(buffer, search_string, global_fallback) abort
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" Search for a locally installed file first.
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let l:path = ale#path#FindNearestFile(a:buffer, a:search_string)
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" If the serach fails, try the global executable instead.
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if empty(l:path)
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let l:path = a:global_fallback
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endif
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return l:path
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endfunction
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" Output 'cd <directory> && '
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" This function can be used changing the directory for a linter command.
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function! ale#path#CdString(directory) abort
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return 'cd ' . shellescape(a:directory) . ' && '
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endfunction
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" Output 'cd <buffer_filename_directory> && '
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" This function can be used changing the directory for a linter command.
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function! ale#path#BufferCdString(buffer) abort
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return ale#path#CdString(fnamemodify(bufname(a:buffer), ':p:h'))
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endfunction
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" Return 1 if a path is an absolute path.
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function! ale#path#IsAbsolute(filename) abort
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" Check for /foo and C:\foo, etc.
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return a:filename[:0] ==# '/' || a:filename[1:2] ==# ':\'
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endfunction
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" Given a directory and a filename, resolve the path, which may be relative
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" or absolute, and get an absolute path to the file, following symlinks.
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function! ale#path#GetAbsPath(directory, filename) abort
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" If the path is already absolute, then just resolve it.
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if ale#path#IsAbsolute(a:filename)
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return resolve(a:filename)
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endif
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" Get an absolute path to our containing directory.
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" If our directory is relative, then we'll use the CWD.
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let l:absolute_directory = ale#path#IsAbsolute(a:directory)
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\ ? a:directory
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\ : getcwd() . '/' . a:directory
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" Resolve the relative path to the file with the absolute path to our
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" directory.
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return resolve(l:absolute_directory . '/' . a:filename)
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endfunction
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" Given a buffer number and a relative or absolute path, return 1 if the
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" two paths represent the same file on disk.
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function! ale#path#IsBufferPath(buffer, filename) abort
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let l:buffer_filename = expand('#' . a:buffer . ':p')
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let l:resolved_filename = ale#path#GetAbsPath(
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\ fnamemodify(l:buffer_filename, ':h'),
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\ a:filename
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\)
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return resolve(l:buffer_filename) ==# l:resolved_filename
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endfunction
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" Given a path, return every component of the path, moving upwards.
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function! ale#path#Upwards(path) abort
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let l:pattern = ale#Has('win32') ? '\v/+|\\+' : '\v/+'
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let l:sep = ale#Has('win32') ? '\' : '/'
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let l:parts = split(simplify(a:path), l:pattern)
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let l:path_list = []
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while !empty(l:parts)
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call add(l:path_list, join(l:parts, l:sep))
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let l:parts = l:parts[:-2]
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endwhile
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if ale#Has('win32') && a:path =~# '^[a-zA-z]:\'
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" Add \ to C: for C:\, etc.
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let l:path_list[-1] .= '\'
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elseif a:path[0] ==# '/'
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" If the path starts with /, even on Windows, add / and / to all paths.
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call add(l:path_list, '')
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call map(l:path_list, '''/'' . v:val')
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endif
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return l:path_list
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endfunction
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