--- /dev/null
+" Name: localvimrc.vim
+" Version: 2.1.0
+" Author: Markus Braun <markus.braun@krawel.de>
+" Summary: Vim plugin to search local vimrc files and load them.
+" Licence: This program is free software: you can redistribute it and/or modify
+" it under the terms of the GNU General Public License as published by
+" the Free Software Foundation, either version 3 of the License, or
+" (at your option) any later version.
+"
+" This program is distributed in the hope that it will be useful,
+" but WITHOUT ANY WARRANTY; without even the implied warranty of
+" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+" GNU General Public License for more details.
+"
+" You should have received a copy of the GNU General Public License
+" along with this program. If not, see <http://www.gnu.org/licenses/>.
+"
+" Section: Plugin header {{{1
+
+" guard against multiple loads {{{2
+if (exists("g:loaded_localvimrc") || &cp)
+ finish
+endif
+let g:loaded_localvimrc = 2
+
+" check for correct vim version {{{2
+if version < 700
+ finish
+endif
+
+" define default "localvimrc_name" {{{2
+if (!exists("g:localvimrc_name"))
+ let s:localvimrc_name = ".lvimrc"
+else
+ let s:localvimrc_name = g:localvimrc_name
+endif
+
+" define default "localvimrc_count" {{{2
+if (!exists("g:localvimrc_count"))
+ let s:localvimrc_count = -1
+else
+ let s:localvimrc_count = g:localvimrc_count
+endif
+
+" define default "localvimrc_sandbox" {{{2
+" copy to script local variable to prevent .lvimrc disabling the sandbox
+" again.
+if (!exists("g:localvimrc_sandbox"))
+ let s:localvimrc_sandbox = 1
+else
+ let s:localvimrc_sandbox = g:localvimrc_sandbox
+endif
+
+" define default "localvimrc_ask" {{{2
+" copy to script local variable to prevent .lvimrc disabling the sandbox
+" again.
+if (!exists("g:localvimrc_ask"))
+ let s:localvimrc_ask = 1
+else
+ let s:localvimrc_ask = g:localvimrc_ask
+endif
+
+" define default "localvimrc_whitelist" {{{2
+" copy to script local variable to prevent .lvimrc modifying the whitelist.
+if (!exists("g:localvimrc_whitelist"))
+ let s:localvimrc_whitelist = "^$" " This never matches a file
+else
+ let s:localvimrc_whitelist = g:localvimrc_whitelist
+endif
+
+" define default "localvimrc_blacklist" {{{2
+" copy to script local variable to prevent .lvimrc modifying the blacklist.
+if (!exists("g:localvimrc_blacklist"))
+ let s:localvimrc_blacklist = "^$" " This never matches a file
+else
+ let s:localvimrc_blacklist = g:localvimrc_blacklist
+endif
+
+" initialize answer dictionary {{{2
+let s:localvimrc_answers = {}
+
+" initialize checksum dictionary {{{2
+let s:localvimrc_checksums = {}
+
+" define default "localvimrc_persistent" {{{2
+" make decisions persistent over multiple vim runs
+if (!exists("g:localvimrc_persistent"))
+ let s:localvimrc_persistent = 0
+else
+ let s:localvimrc_persistent = g:localvimrc_persistent
+endif
+
+" define default "localvimrc_debug" {{{2
+if (!exists("g:localvimrc_debug"))
+ let g:localvimrc_debug = 0
+endif
+
+" Section: Autocmd setup {{{1
+
+if has("autocmd")
+ augroup localvimrc
+ autocmd!
+
+ " call s:LocalVimRC() when creating ore reading any file
+ autocmd VimEnter,BufNewFile,BufRead * call s:LocalVimRC()
+ augroup END
+endif
+
+" Section: Functions {{{1
+
+" Function: s:LocalVimRC() {{{2
+"
+" search all local vimrc files from current directory up to root directory and
+" source them in reverse order.
+"
+function! s:LocalVimRC()
+ " begin marker
+ call s:LocalVimRCDebug(1, "==================================================")
+
+ " print version
+ call s:LocalVimRCDebug(1, "localvimrc.vim " . g:loaded_localvimrc)
+
+ " read persistent information
+ call s:LocalVimRCReadPersistent()
+
+ " only consider normal buffers (skip especially CommandT's GoToFile buffer)
+ if (&buftype != "")
+ call s:LocalVimRCDebug(1, "not a normal buffer, exiting")
+ return
+ endif
+
+ " directory of current file (correctly escaped)
+ let l:directory = fnameescape(expand("%:p:h"))
+ if empty(l:directory)
+ let l:directory = fnameescape(getcwd())
+ endif
+ call s:LocalVimRCDebug(2, "searching directory \"" . l:directory . "\"")
+
+ " generate a list of all local vimrc files with absolute file names along path to root
+ let l:absolute = {}
+ for l:rcfile in findfile(s:localvimrc_name, l:directory . ";", -1)
+ let l:absolute[resolve(fnamemodify(l:rcfile, ":p"))] = ""
+ endfor
+ let l:rcfiles = sort(keys(l:absolute))
+ call s:LocalVimRCDebug(1, "found files: " . string(l:rcfiles))
+
+ " shrink list of found files
+ if (s:localvimrc_count >= 0 && s:localvimrc_count < len(l:rcfiles))
+ call remove(l:rcfiles, 0, len(l:rcfiles) - s:localvimrc_count - 1)
+ endif
+ call s:LocalVimRCDebug(1, "candidate files: " . string(l:rcfiles))
+
+ " source all found local vimrc files along path from root (reverse order)
+ let l:answer = ""
+ for l:rcfile in l:rcfiles
+ call s:LocalVimRCDebug(2, "processing \"" . l:rcfile . "\"")
+ let l:rcfile_load = "unknown"
+
+ if filereadable(l:rcfile)
+ " check if whitelisted
+ if (l:rcfile_load == "unknown")
+ if (match(l:rcfile, s:localvimrc_whitelist) != -1)
+ call s:LocalVimRCDebug(2, l:rcfile . " is whitelisted")
+ let l:rcfile_load = "yes"
+ endif
+ endif
+
+ " check if blacklisted
+ if (l:rcfile_load == "unknown")
+ if (match(l:rcfile, s:localvimrc_blacklist) != -1)
+ call s:LocalVimRCDebug(2, l:rcfile . " is blacklisted")
+ let l:rcfile_load = "no"
+ endif
+ endif
+
+ " check if an answer has been given for the same file
+ if exists("s:localvimrc_answers[l:rcfile]")
+ if (s:LocalVimRCCheckChecksum(l:rcfile) == 1)
+ call s:LocalVimRCDebug(2, "reuse previous answer \"" . s:localvimrc_answers[l:rcfile] . "\"")
+
+ " check the answer
+ if (s:localvimrc_answers[l:rcfile] =~? '^y$')
+ let l:rcfile_load = "yes"
+ elseif (s:localvimrc_answers[l:rcfile] =~? '^n$')
+ let l:rcfile_load = "no"
+ endif
+ else
+ call s:LocalVimRCDebug(2, "checksum mismatch, no answer reuse")
+ endif
+ endif
+
+ " ask if in interactive mode
+ if (l:rcfile_load == "unknown")
+ if (s:localvimrc_ask == 1)
+ if (l:answer !~? "^a$")
+ call s:LocalVimRCDebug(2, "need to ask")
+ let l:answer = ""
+ while (l:answer !~? '^[ynaq]$')
+ if (s:localvimrc_persistent == 0)
+ let l:message = "localvimrc: source " . l:rcfile . "? ([y]es/[n]o/[a]ll/[q]uit) "
+ elseif (s:localvimrc_persistent == 1)
+ let l:message = "localvimrc: source " . l:rcfile . "? ([y]es/[n]o/[a]ll/[q]uit ; persistent [Y]es/[N]o/[A]ll) "
+ else
+ let l:message = "localvimrc: source " . l:rcfile . "? ([y]es/[n]o/[a]ll/[q]uit) "
+ endif
+ let l:answer = input(l:message)
+ call s:LocalVimRCDebug(2, "answer is \"" . l:answer . "\"")
+ endwhile
+ endif
+
+ " make answer upper case if persistence is 2 ("force")
+ if (s:localvimrc_persistent == 2)
+ let l:answer = toupper(l:answer)
+ endif
+
+ " store y/n answers
+ if (l:answer =~? "^y$")
+ let s:localvimrc_answers[l:rcfile] = l:answer
+ elseif (l:answer =~? "^n$")
+ let s:localvimrc_answers[l:rcfile] = l:answer
+ elseif (l:answer =~# "^a$")
+ let s:localvimrc_answers[l:rcfile] = "y"
+ elseif (l:answer =~# "^A$")
+ let s:localvimrc_answers[l:rcfile] = "Y"
+ endif
+
+ " check the answer
+ if (l:answer =~? '^[ya]$')
+ let l:rcfile_load = "yes"
+ elseif (l:answer =~? "^q$")
+ call s:LocalVimRCDebug(1, "ended processing files")
+ break
+ endif
+ endif
+ endif
+
+ " load unconditionally if in non-interactive mode
+ if (l:rcfile_load == "unknown")
+ if (s:localvimrc_ask == 0)
+ let l:rcfile_load = "yes"
+ endif
+ endif
+
+ " should this rc file be loaded?
+ if (l:rcfile_load == "yes")
+ let l:command = "silent "
+
+ " add 'sandbox' if requested
+ if (s:localvimrc_sandbox != 0)
+ let l:command .= "sandbox "
+ call s:LocalVimRCDebug(2, "using sandbox")
+ endif
+ let l:command .= "source " . fnameescape(l:rcfile)
+
+ " execute the command
+ exec l:command
+ call s:LocalVimRCDebug(1, "sourced " . l:rcfile)
+
+ else
+ call s:LocalVimRCDebug(1, "skipping " . l:rcfile)
+ endif
+
+ " calculate checksum for each processed file
+ call s:LocalVimRCCalcChecksum(l:rcfile)
+
+ endif
+ endfor
+
+ " clear command line
+ redraw!
+
+ " make information persistent
+ call s:LocalVimRCWritePersistent()
+
+ " end marker
+ call s:LocalVimRCDebug(1, "==================================================")
+endfunction
+
+" Function: s:LocalVimRCCalcChecksum(filename) {{{2
+"
+" calculate checksum and store it in dictionary
+"
+function! s:LocalVimRCCalcChecksum(filename)
+ let l:file = fnameescape(a:filename)
+ let l:checksum = getfsize(l:file) . getfperm(l:file) . getftime(l:file)
+ let s:localvimrc_checksums[l:file] = l:checksum
+
+ call s:LocalVimRCDebug(3, "checksum calc -> ".l:file . " : " . l:checksum)
+endfunction
+
+" Function: s:LocalVimRCCheckChecksum(filename) {{{2
+"
+" Check checksum in dictionary. Return "0" if it does not exist, "1" otherwise
+"
+function! s:LocalVimRCCheckChecksum(filename)
+ let l:return = 0
+ let l:file = fnameescape(a:filename)
+ let l:checksum = getfsize(l:file) . getfperm(l:file) . getftime(l:file)
+ " overwrite answers with persistent data
+ if exists("s:localvimrc_checksums[l:file]")
+ call s:LocalVimRCDebug(3, "checksum check -> ".l:file . " : " . l:checksum . " : " . s:localvimrc_checksums[l:file])
+
+ if (s:localvimrc_checksums[l:file] == l:checksum)
+ let l:return = 1
+ endif
+
+ endif
+
+ return l:return
+endfunction
+
+" Function: s:LocalVimRCReadPersistent() {{{2
+"
+" read decision variables from global variable
+"
+function! s:LocalVimRCReadPersistent()
+ if (s:localvimrc_persistent == 1)
+ if stridx(&viminfo, "!") >= 0
+ if exists("g:LOCALVIMRC_ANSWERS")
+ for l:rcfile in keys(g:LOCALVIMRC_ANSWERS)
+ " overwrite answers with persistent data
+ let s:localvimrc_answers[l:rcfile] = g:LOCALVIMRC_ANSWERS[l:rcfile]
+ endfor
+ call s:LocalVimRCDebug(3, "read answer persistent data: " . string(s:localvimrc_answers))
+ endif
+ if exists("g:LOCALVIMRC_CHECKSUMS")
+ " overwrite checksums with persistent data
+ let s:localvimrc_checksums = g:LOCALVIMRC_CHECKSUMS
+ call s:LocalVimRCDebug(3, "read checksum persistent data: " . string(s:localvimrc_checksums))
+ endif
+ endif
+ endif
+endfunction
+
+" Function: s:LocalVimRCWritePersistent() {{{2
+"
+" write decision variables to global variable to make them persistent
+"
+function! s:LocalVimRCWritePersistent()
+ if (s:localvimrc_persistent == 1)
+ " select only data relevant for persistence
+ let l:persistent_answers = filter(copy(s:localvimrc_answers), 'v:val =~# "^[YN]$"')
+ let l:persistent_checksums = {}
+ for l:rcfile in keys(l:persistent_answers)
+ let l:persistent_checksums[l:rcfile] = s:localvimrc_checksums[l:rcfile]
+ endfor
+
+ " if there are answers to store and global variables are enabled for viminfo
+ if (len(l:persistent_answers) > 0)
+ if (stridx(&viminfo, "!") >= 0)
+ let g:LOCALVIMRC_ANSWERS = l:persistent_answers
+ call s:LocalVimRCDebug(3, "write answer persistent data: " . string(g:LOCALVIMRC_ANSWERS))
+ let g:LOCALVIMRC_CHECKSUMS = l:persistent_checksums
+ call s:LocalVimRCDebug(3, "write checksum persistent data: " . string(g:LOCALVIMRC_CHECKSUMS))
+ else
+ call s:LocalVimRCDebug(3, "viminfo setting has no '!' flag, no persistence available")
+ call s:LocalVimRCError("viminfo setting has no '!' flag, no persistence available")
+ endif
+ endif
+ else
+ if exists("g:LOCALVIMRC_ANSWERS")
+ unlet g:LOCALVIMRC_ANSWERS
+ call s:LocalVimRCDebug(3, "deleted answer persistent data")
+ endif
+ if exists("g:LOCALVIMRC_CHECKSUMS")
+ unlet g:LOCALVIMRC_CHECKSUMS
+ call s:LocalVimRCDebug(3, "deleted checksum persistent data")
+ endif
+
+ endif
+endfunction
+
+" Function: s:LocalVimRCClear() {{{2
+"
+" clear all stored data
+"
+function! s:LocalVimRCClear()
+ if exists("s:localvimrc_answers")
+ unlet s:localvimrc_answers
+ call s:LocalVimRCDebug(3, "deleted answer local data")
+ endif
+ if exists("s:localvimrc_checksums")
+ unlet s:localvimrc_checksums
+ call s:LocalVimRCDebug(3, "deleted checksum local data")
+ endif
+ if exists("g:LOCALVIMRC_ANSWERS")
+ unlet g:LOCALVIMRC_ANSWERS
+ call s:LocalVimRCDebug(3, "deleted answer persistent data")
+ endif
+ if exists("g:LOCALVIMRC_CHECKSUMS")
+ unlet g:LOCALVIMRC_CHECKSUMS
+ call s:LocalVimRCDebug(3, "deleted checksum persistent data")
+ endif
+endfunction
+
+" Function: s:LocalVimRCError(text) {{{2
+"
+" output error message
+"
+function! s:LocalVimRCError(text)
+ echohl ErrorMsg | echo "localvimrc: " . a:text | echohl None
+endfunction
+
+" Function: s:LocalVimRCDebug(level, text) {{{2
+"
+" output debug message, if this message has high enough importance
+"
+function! s:LocalVimRCDebug(level, text)
+ if (g:localvimrc_debug >= a:level)
+ echom "localvimrc: " . a:text
+ endif
+endfunction
+
+" Section: Commands {{{1
+command! LocalVimRCClear call s:LocalVimRCClear()
+
+" vim600: foldmethod=marker foldlevel=0 :
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