| Bram Moolenaar | 8d04317 | 2014-01-23 14:24:41 +0100 | [diff] [blame] | 1 | " netrw_gitignore#Hide: gitignore-based hiding |
| 2 | " Function returns a string of comma separated patterns convenient for |
| 3 | " assignment to `g:netrw_list_hide` option. |
| 4 | " Function can take additional filenames as arguments, example: |
| 5 | " netrw_gitignore#Hide('custom_gitignore1', 'custom_gitignore2') |
| 6 | " |
| 7 | " Usage examples: |
| 8 | " let g:netrw_list_hide = netrw_gitignore#Hide() |
| 9 | " let g:netrw_list_hide = netrw_gitignore#Hide() . 'more,hide,patterns' |
| 10 | " |
| 11 | " Copyright: Copyright (C) 2013 Bruno Sutic {{{1 |
| 12 | " Permission is hereby granted to use and distribute this code, |
| 13 | " with or without modifications, provided that this copyright |
| 14 | " notice is copied with it. Like anything else that's free, |
| 15 | " netrw_gitignore.vim is provided *as is* and comes with no |
| 16 | " warranty of any kind, either expressed or implied. By using |
| 17 | " this plugin, you agree that in no event will the copyright |
| 18 | " holder be liable for any damages resulting from the use |
| 19 | " of this software. |
| 20 | function! netrw_gitignore#Hide(...) |
| 21 | let additional_files = a:000 |
| 22 | |
| 23 | let default_files = ['.gitignore', '.git/info/exclude'] |
| 24 | |
| 25 | " get existing global/system gitignore files |
| 26 | let global_gitignore = expand(substitute(system("git config --global core.excludesfile"), '\n', '', 'g')) |
| 27 | if global_gitignore !=# '' |
| 28 | let default_files = add(default_files, global_gitignore) |
| 29 | endif |
| 30 | let system_gitignore = expand(substitute(system("git config --system core.excludesfile"), '\n', '', 'g')) |
| 31 | if system_gitignore !=# '' |
| 32 | let default_files = add(default_files, system_gitignore) |
| 33 | endif |
| 34 | |
| 35 | " append additional files if given as function arguments |
| 36 | if additional_files !=# [] |
| 37 | let files = extend(default_files, additional_files) |
| 38 | else |
| 39 | let files = default_files |
| 40 | endif |
| 41 | |
| 42 | " keep only existing/readable files |
| 43 | let gitignore_files = [] |
| 44 | for file in files |
| 45 | if filereadable(file) |
| 46 | let gitignore_files = add(gitignore_files, file) |
| 47 | endif |
| 48 | endfor |
| 49 | |
| 50 | " get contents of gitignore patterns from those files |
| 51 | let gitignore_lines = [] |
| 52 | for file in gitignore_files |
| 53 | for line in readfile(file) |
| 54 | " filter empty lines and comments |
| 55 | if line !~# '^#' && line !~# '^$' |
| 56 | let gitignore_lines = add(gitignore_lines, line) |
| 57 | endif |
| 58 | endfor |
| 59 | endfor |
| 60 | |
| 61 | " convert gitignore patterns to Netrw/Vim regex patterns |
| 62 | let escaped_lines = [] |
| 63 | for line in gitignore_lines |
| Bram Moolenaar | 8feef4f | 2015-01-07 16:57:10 +0100 | [diff] [blame] | 64 | let escaped = line |
| 65 | let escaped = substitute(escaped, '\*\*', '*', 'g') |
| 66 | let escaped = substitute(escaped, '\.', '\\.', 'g') |
| 67 | let escaped = substitute(escaped, '\$', '\\$', 'g') |
| 68 | let escaped = substitute(escaped, '*', '.*', 'g') |
| 69 | " correction: dot, dollar and asterisks chars shouldn't be escaped when |
| 70 | " within regex matching groups. |
| 71 | let escaped = substitute(escaped, '\(\[[^]]*\)\zs\\\.', '\.', 'g') |
| 72 | let escaped = substitute(escaped, '\(\[[^]]*\)\zs\\\$', '\$', 'g') |
| 73 | let escaped = substitute(escaped, '\(\[[^]]*\)\zs\.\*', '*', 'g') |
| Bram Moolenaar | 8d04317 | 2014-01-23 14:24:41 +0100 | [diff] [blame] | 74 | let escaped_lines = add(escaped_lines, escaped) |
| 75 | endfor |
| 76 | |
| 77 | return join(escaped_lines, ',') |
| 78 | endfunction |