diff options
| -rw-r--r-- | autoload/xolox/easytags.vim | 74 |
1 files changed, 40 insertions, 34 deletions
diff --git a/autoload/xolox/easytags.vim b/autoload/xolox/easytags.vim index 038cea6..351bf13 100644 --- a/autoload/xolox/easytags.vim +++ b/autoload/xolox/easytags.vim @@ -1,9 +1,9 @@ " Vim script " Author: Peter Odding <peter@peterodding.com> -" Last Change: April 18, 2013 +" Last Change: April 19, 2013 " URL: http://peterodding.com/code/vim/easytags/ -let g:xolox#easytags#version = '2.8.2' +let g:xolox#easytags#version = '2.9' " Public interface through (automatic) commands. {{{1 @@ -204,38 +204,6 @@ function! s:prep_cmdline(cfile, tagsfile, firstrun, arguments, context) " {{{3 return have_args ? join(cmdline) : '' endfunction -if exists('*sha256') -function! s:get_fingerprint(cfile, output) - return sha256(a:output) -endfunction -else -function! s:get_fingerprint(cfile, output) - " Don't want to re-implement a costly hashing function in Vimscript. Just - " handle files that never had any tags. - if empty(a:output) - return get(s:fingerprints, a:cfile, 1) - else - return '' - endif -endfunction -endif - -let s:fingerprints = {} -function! s:has_updates(cfile, output) - if empty(a:cfile) - " The cache doesn't work when tags aren't created for the current file. - return 1 - endif - - let fingerprint = s:get_fingerprint(a:cfile, a:output) - if ! empty(fingerprint) && get(s:fingerprints, a:cfile, '') ==# fingerprint - return 0 - endif - - let s:fingerprints[a:cfile] = fingerprint - return 1 -endfunction - function! s:run_ctags(starttime, cfile, tagsfile, firstrun, cmdline) " {{{3 let lines = [] let has_updates = 1 @@ -266,6 +234,44 @@ function! s:run_ctags(starttime, cfile, tagsfile, firstrun, cmdline) " {{{3 return [xolox#easytags#parse_entries(lines), has_updates] endfunction +" Vim 7.3 now has the sha256() function. We use it below to recognize when the +" tags haven't changed from the last time we ran Exuberant Ctags on a file; in +" this case the tags file doesn't have to be written to disk which makes the +" plug-in much faster for a very common case. + +let s:fingerprints = {} + +function! s:has_updates(cfile, output) + if empty(a:cfile) + " The cache doesn't work when tags aren't created for the current file. + return 1 + endif + let fingerprint = s:get_fingerprint(a:cfile, a:output) + call xolox#misc#msg#debug("easytags.vim %s: Fingerprint of tags in %s is %s.", g:xolox#easytags#version, a:cfile, string(fingerprint)) + if !empty(fingerprint) && get(s:fingerprints, a:cfile, '') ==# fingerprint + call xolox#misc#msg#debug("easytags.vim %s: The fingerprint didn't change! We can take a shortcut :-)", g:xolox#easytags#version) + return 0 + endif + let s:fingerprints[a:cfile] = fingerprint + return 1 +endfunction + +if exists('*sha256') + function! s:get_fingerprint(cfile, output) + return sha256(a:output) + endfunction +else + function! s:get_fingerprint(cfile, output) + " Don't want to re-implement a costly hashing function in Vimscript. Just + " handle files that never had any tags. + if empty(a:output) + return get(s:fingerprints, a:cfile, 1) + else + return '' + endif + endfunction +endif + function! s:filter_merge_tags(filter_tags, tagsfile, output, context) " {{{3 let [headers, entries] = xolox#easytags#read_tagsfile(a:tagsfile) let filters = [] |