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" Vim filetype plugin file
" Language: generic Changelog file
" Maintainer: Nikolai Weibull <now@bitwi.se>
" Latest Revision: 2007-05-06
" 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
" Try to figure out a reasonable username of the form:
" Full Name <user@host>.
if !exists('g:changelog_username')
if exists('$EMAIL') && $EMAIL != ''
let g:changelog_username = $EMAIL
elseif exists('$EMAIL_ADDRESS') && $EMAIL_ADDRESS != ''
" This is some Debian junk if I remember correctly.
let g:changelog_username = $EMAIL_ADDRESS
else
" Get the users login name.
let login = system('whoami')
if v:shell_error
let login = 'unknown'
else
let newline = stridx(login, "\n")
if newline != -1
let login = strpart(login, 0, newline)
endif
endif
" Try to get the full name from gecos field in /etc/passwd.
if filereadable('/etc/passwd')
for line in readfile('/etc/passwd')
if line =~ '^' . login
let name = substitute(line,'^\%([^:]*:\)\{4}\([^:]*\):.*$','\1','')
" Only keep stuff before the first comma.
let comma = stridx(name, ',')
if comma != -1
let name = strpart(name, 0, comma)
endif
" And substitute & in the real name with the login of our user.
let amp = stridx(name, '&')
if amp != -1
let name = strpart(name, 0, amp) . toupper(login[0]) .
\ strpart(login, 1) . strpart(name, amp + 1)
endif
endif
endfor
endif
" If we haven't found a name, try to gather it from other places.
if !exists('name')
" Maybe the environment has something of interest.
if exists("$NAME")
let name = $NAME
else
" No? well, use the login name and capitalize first
" character.
let name = toupper(login[0]) . strpart(login, 1)
endif
endif
" Get our hostname.
let hostname = system('hostname')
if v:shell_error
let hostname = 'localhost'
else
let newline = stridx(hostname, "\n")
if newline != -1
let hostname = strpart(hostname, 0, newline)
endif
endif
" And finally set the username.
let g:changelog_username = name . ' <' . login . '@' . hostname . '>'
endif
endif
" Format used for new date entries.
if !exists('g:changelog_new_date_format')
let g:changelog_new_date_format = "%d %u\n\n\t* %c\n\n"
endif
" Format used for new entries to current date entry.
if !exists('g:changelog_new_entry_format')
let g:changelog_new_entry_format = "\t* %c"
endif
" Regular expression used to find a given date entry.
if !exists('g:changelog_date_entry_search')
let g:changelog_date_entry_search = '^\s*%d\_s*%u'
endif
" Regular expression used to find the end of a date entry
if !exists('g:changelog_date_end_entry_search')
let g:changelog_date_entry_search = '^\s*$'
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,
\ g:changelog_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('.') - 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, g:changelog_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
map <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
" Add the Changelog opening mapping
nmap <silent> <Leader>o :call <SID>open_changelog()<CR>
function! s:open_changelog()
if !filereadable('ChangeLog')
return
endif
let buf = bufnr('ChangeLog')
if buf != -1
if bufwinnr(buf) != -1
execute bufwinnr(buf) . 'wincmd w'
else
execute 'sbuffer' buf
endif
else
split ChangeLog
endif
call s:new_changelog_entry()
endfunction
endif
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