Edit File: changelog.vim
" Vim filetype plugin file " Language: generic Changelog file " Maintainer: Nikolai Weibull <now@bitwi.se> " Latest Revision: 2012-08-23 " Variables: " g:changelog_timeformat (deprecated: use g:changelog_dateformat instead) - " description: the timeformat used in ChangeLog entries. " default: "%Y-%m-%d". " g:changelog_dateformat - " description: the format sent to strftime() to generate a date string. " default: "%Y-%m-%d". " g:changelog_username - " description: the username to use in ChangeLog entries " default: try to deduce it from environment variables and system files. " Local Mappings: " <Leader>o - " adds a new changelog entry for the current user for the current date. " Global Mappings: " <Leader>o - " switches to the ChangeLog buffer opened for the current directory, or " opens it in a new buffer if it exists in the current directory. Then " it does the same as the local <Leader>o described above. " Notes: " run 'runtime ftplugin/changelog.vim' to enable the global mapping for " changelog files. " TODO: " should we perhaps open the ChangeLog file even if it doesn't exist already? " Problem is that you might end up with ChangeLog files all over the place. " If 'filetype' isn't "changelog", we must have been to add ChangeLog opener if &filetype == 'changelog' if exists('b:did_ftplugin') finish endif let b:did_ftplugin = 1 let s:cpo_save = &cpo set cpo&vim " Set up the format used for dates. if !exists('g:changelog_dateformat') if exists('g:changelog_timeformat') let g:changelog_dateformat = g:changelog_timeformat else let g:changelog_dateformat = "%Y-%m-%d" endif endif function! s:username() if exists('g:changelog_username') return g:changelog_username elseif $EMAIL != "" return $EMAIL elseif $EMAIL_ADDRESS != "" return $EMAIL_ADDRESS endif let login = s:login() return printf('%s <%s@%s>', s:name(login), login, s:hostname()) endfunction function! s:login() return s:trimmed_system_with_default('whoami', 'unknown') endfunction function! s:trimmed_system_with_default(command, default) return s:first_line(s:system_with_default(a:command, a:default)) endfunction function! s:system_with_default(command, default) let output = system(a:command) if v:shell_error return default endif return output endfunction function! s:first_line(string) return substitute(a:string, '\n.*$', "", "") endfunction function! s:name(login) for name in [s:gecos_name(a:login), $NAME, s:capitalize(a:login)] if name != "" return name endif endfor endfunction function! s:gecos_name(login) for line in s:try_reading_file('/etc/passwd') if line =~ '^' . a:login . ':' return substitute(s:passwd_field(line, 5), '&', s:capitalize(a:login), "") endif endfor return "" endfunction function! s:try_reading_file(path) try return readfile(a:path) catch return [] endtry endfunction function! s:passwd_field(line, field) let fields = split(a:line, ':', 1) if len(fields) < a:field return "" endif return fields[a:field - 1] endfunction function! s:capitalize(word) return toupper(a:word[0]) . strpart(a:word, 1) endfunction function! s:hostname() return s:trimmed_system_with_default('hostname', 'localhost') endfunction " Format used for new date entries. if !exists('g:changelog_new_date_format') let g:changelog_new_date_format = "%d %u\n\n\t* %c\n\n" endif " Format used for new entries to current date entry. if !exists('g:changelog_new_entry_format') let g:changelog_new_entry_format = "\t* %c" endif " Regular expression used to find a given date entry. if !exists('g:changelog_date_entry_search') let g:changelog_date_entry_search = '^\s*%d\_s*%u' endif " Regular expression used to find the end of a date entry if !exists('g:changelog_date_end_entry_search') let g:changelog_date_end_entry_search = '^\s*$' endif " Substitutes specific items in new date-entry formats and search strings. " Can be done with substitute of course, but unclean, and need \@! then. function! s:substitute_items(str, date, user) let str = a:str let middles = {'%': '%', 'd': a:date, 'u': a:user, 'c': '{cursor}'} let i = stridx(str, '%') while i != -1 let inc = 0 if has_key(middles, str[i + 1]) let mid = middles[str[i + 1]] let str = strpart(str, 0, i) . mid . strpart(str, i + 2) let inc = strlen(mid) endif let i = stridx(str, '%', i + 1 + inc) endwhile return str endfunction " Position the cursor once we've done all the funky substitution. function! s:position_cursor() if search('{cursor}') > 0 let lnum = line('.') let line = getline(lnum) let cursor = stridx(line, '{cursor}') call setline(lnum, substitute(line, '{cursor}', '', '')) endif startinsert! endfunction " Internal function to create a new entry in the ChangeLog. function! s:new_changelog_entry() " Deal with 'paste' option. let save_paste = &paste let &paste = 1 call cursor(1, 1) " Look for an entry for today by our user. let date = strftime(g:changelog_dateformat) let search = s:substitute_items(g:changelog_date_entry_search, date, \ s:username()) if search(search) > 0 " Ok, now we look for the end of the date entry, and add an entry. call cursor(nextnonblank(line('.') + 1), 1) if search(g:changelog_date_end_entry_search, 'W') > 0 let p = (line('.') == line('$')) ? line('.') : line('.') - 1 else let p = line('.') endif let ls = split(s:substitute_items(g:changelog_new_entry_format, '', ''), \ '\n') call append(p, ls) call cursor(p + 1, 1) else " Flag for removing empty lines at end of new ChangeLogs. let remove_empty = line('$') == 1 " No entry today, so create a date-user header and insert an entry. let todays_entry = s:substitute_items(g:changelog_new_date_format, \ date, s:username()) " Make sure we have a cursor positioning. if stridx(todays_entry, '{cursor}') == -1 let todays_entry = todays_entry . '{cursor}' endif " Now do the work. call append(0, split(todays_entry, '\n')) " Remove empty lines at end of file. if remove_empty $-/^\s*$/-1,$delete endif " Reposition cursor once we're done. call cursor(1, 1) endif call s:position_cursor() " And reset 'paste' option let &paste = save_paste endfunction if exists(":NewChangelogEntry") != 2 noremap <buffer> <silent> <Leader>o <Esc>:call <SID>new_changelog_entry()<CR> command! -nargs=0 NewChangelogEntry call s:new_changelog_entry() endif let b:undo_ftplugin = "setl com< fo< et< ai<" setlocal comments= setlocal formatoptions+=t setlocal noexpandtab setlocal autoindent if &textwidth == 0 setlocal textwidth=78 let b:undo_ftplugin .= " tw<" endif let &cpo = s:cpo_save unlet s:cpo_save else let s:cpo_save = &cpo set cpo&vim " Add the Changelog opening mapping nnoremap <silent> <Leader>o :call <SID>open_changelog()<CR> function! s:open_changelog() let path = expand('%:p:h') if exists('b:changelog_path') let changelog = b:changelog_path else if exists('b:changelog_name') let name = b:changelog_name else let name = 'ChangeLog' endif while isdirectory(path) let changelog = path . '/' . name if filereadable(changelog) break endif let parent = substitute(path, '/\+[^/]*$', "", "") if path == parent break endif let path = parent endwhile endif if !filereadable(changelog) return endif if exists('b:changelog_entry_prefix') let prefix = call(b:changelog_entry_prefix, []) else let prefix = substitute(strpart(expand('%:p'), strlen(path)), '^/\+', "", "") . ':' endif if !empty(prefix) let prefix = ' ' . prefix endif let buf = bufnr(changelog) if buf != -1 if bufwinnr(buf) != -1 execute bufwinnr(buf) . 'wincmd w' else execute 'sbuffer' buf endif else execute 'split' fnameescape(changelog) endif call s:new_changelog_entry(prefix) endfunction let &cpo = s:cpo_save unlet s:cpo_save endif
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