vim-signify/autoload/sy/repo.vim
2017-02-20 01:38:25 +01:00

440 lines
14 KiB
VimL

" vim: et sw=2 sts=2
scriptencoding utf-8
" Function: #detect {{{1
function! sy#repo#detect(do_register) abort
let vcs_list = s:vcs_list
" Simple cache. If there is a registered VCS-controlled file in this
" directory already, assume that this file is probably controlled by
" the same VCS. Thus we shuffle that VCS to the top of our copy of
" s:vcs_list, so we don't affect the preference order of s:vcs_list.
if has_key(g:sy_cache, b:sy_info.dir)
let vcs_list = [g:sy_cache[b:sy_info.dir]] +
\ filter(copy(s:vcs_list), 'v:val != "'.
\ g:sy_cache[b:sy_info.dir] .'"')
endif
for vcs in vcs_list
call sy#repo#get_diff_start(vcs, a:do_register)
endfor
endfunction
" Function: s:callback_stdout_nvim {{{1
function! s:callback_stdout_nvim(_job_id, data, _event) dict abort
if empty(self.stdoutbuf) || empty(self.stdoutbuf[-1])
let self.stdoutbuf += a:data
else
let self.stdoutbuf = self.stdoutbuf[:-2]
\ + [self.stdoutbuf[-1] . get(a:data, 0, '')]
\ + a:data[1:]
endif
endfunction
" Function: s:callback_stdout_vim {{{1
function! s:callback_stdout_vim(_job_id, data) dict abort
let self.stdoutbuf += [a:data]
endfunction
" Function: s:callback_close {{{1
function! s:callback_close(channel) dict abort
try
silent! call job_status(ch_getjob(a:channel))
catch
endtry
endfunction
" Function: s:callback_exit {{{1
function! s:callback_exit(_job_id, exitval, ...) dict abort
call sy#verbose('callback_exit()', self.vcs)
let sy = getbufvar(self.bufnr, 'sy')
if empty(sy)
call sy#verbose(printf('No b:sy found for %s', bufname(self.bufnr)), self.vcs)
return
endif
call sy#repo#get_diff_{self.vcs}(sy, a:exitval, self.stdoutbuf, self.do_register)
call setbufvar(self.bufnr, 'sy_job_id_'.self.vcs, 0)
endfunction
" Function: sy#get_diff_start {{{1
function! sy#repo#get_diff_start(vcs, do_register) abort
call sy#verbose('get_diff_start()', a:vcs)
let job_id = get(b:, 'sy_job_id_'.a:vcs)
" Neovim
if has('nvim')
if job_id
silent! call jobstop(job_id)
endif
let [cmd, options] = s:initialize_job(a:vcs, a:do_register)
let [cwd, chdir] = sy#util#chdir()
try
execute chdir fnameescape(b:sy_info.dir)
call sy#verbose(printf('CMD: %s | CWD: %s', string(cmd), getcwd()), a:vcs)
let b:sy_job_id_{a:vcs} = jobstart(cmd, extend(options, {
\ 'on_stdout': function('s:callback_stdout_nvim'),
\ 'on_exit': function('s:callback_exit'),
\ }))
finally
execute chdir fnameescape(cwd)
endtry
" Newer Vim
elseif v:version > 704 || v:version == 704 && has('patch1967')
if type(job_id) != type(0)
silent! call job_stop(job_id)
endif
let [cmd, options] = s:initialize_job(a:vcs, a:do_register)
let [cwd, chdir] = sy#util#chdir()
try
execute chdir fnameescape(b:sy_info.dir)
call sy#verbose(printf('CMD: %s | CWD: %s', string(cmd), getcwd()), a:vcs)
let opts = {
\ 'in_io': 'null',
\ 'out_cb': function('s:callback_stdout_vim', options),
\ 'exit_cb': function('s:callback_exit', options),
\ }
if !has('patch-8.0.50')
let opts.close_cb = function('s:callback_close', options)
endif
let b:sy_job_id_{a:vcs} = job_start(cmd, opts)
finally
execute chdir fnameescape(cwd)
endtry
" Older Vim
else
let diff = split(s:run(a:vcs), '\n')
call sy#repo#get_diff_{a:vcs}(b:sy, v:shell_error, diff, a:do_register)
endif
endfunction
" Function: s:get_diff_end {{{1
function! s:get_diff_end(sy, found_diff, vcs, diff, do_register) abort
call sy#verbose('get_diff_end()', a:vcs)
if a:found_diff
let a:sy.vcs = a:vcs
call sy#set_signs(a:sy, a:diff, a:do_register)
endif
endfunction
" Function: #get_diff_git {{{1
function! sy#repo#get_diff_git(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_git()', 'git')
let [found_diff, diff] = a:exitval ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'git', diff, a:do_register)
endfunction
" Function: #get_diff_hg {{{1
function! sy#repo#get_diff_hg(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_hg()', 'hg')
let [found_diff, diff] = a:exitval ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'hg', diff, a:do_register)
endfunction
" Function: #get_diff_svn {{{1
function! sy#repo#get_diff_svn(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_svn()', 'svn')
let [found_diff, diff] = a:exitval ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'svn', diff, a:do_register)
endfunction
" Function: #get_diff_bzr {{{1
function! sy#repo#get_diff_bzr(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_bzr()', 'bzr')
let [found_diff, diff] = (a:exitval =~ '[012]') ? [1, a:diff] : [0, []]
call s:get_diff_end(a:sy, found_diff, 'bzr', diff, a:do_register)
endfunction
" Function: #get_diff_darcs {{{1
function! sy#repo#get_diff_darcs(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_darcs()', 'darcs')
let [found_diff, diff] = a:exitval ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'darcs', diff, a:do_register)
endfunction
" Function: #get_diff_fossil {{{1
function! sy#repo#get_diff_fossil(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_fossil()', 'fossil')
let [found_diff, diff] = a:exitval ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'fossil', diff, a:do_register)
endfunction
" Function: #get_diff_cvs {{{1
function! sy#repo#get_diff_cvs(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_cvs()', 'cvs')
let [found_diff, diff] = [0, []]
if a:exitval == 1
for diffline in a:diff
if diffline =~ '+++'
let [found_diff, diff] = [1, a:diff]
break
endif
endfor
endif
call s:get_diff_end(a:sy, found_diff, 'cvs', diff, a:do_register)
endfunction
" Function: #get_diff_rcs {{{1
function! sy#repo#get_diff_rcs(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_rcs()', 'rcs')
let [found_diff, diff] = a:exitval ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'rcs', diff, a:do_register)
endfunction
" Function: #get_diff_accurev {{{1
function! sy#repo#get_diff_accurev(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_accurev()', 'accurev')
let [found_diff, diff] = (a:exitval >= 2) ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'accurev', diff, a:do_register)
endfunction
" Function: #get_diff_perforce {{{1
function! sy#repo#get_diff_perforce(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_perforce()', 'perforce')
let [found_diff, diff] = a:exitval ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'perforce', diff, a:do_register)
endfunction
" Function: #get_diff_tfs {{{1
function! sy#repo#get_diff_tfs(sy, exitval, diff, do_register) abort
call sy#verbose('get_diff_tfs()', 'tfs')
let [found_diff, diff] = a:exitval ? [0, []] : [1, s:strip_context(a:diff)]
call s:get_diff_end(a:sy, found_diff, 'tfs', diff, a:do_register)
endfunction
" Function: #get_stats {{{1
function! sy#repo#get_stats() abort
if !exists('b:sy') || !has_key(b:sy, 'stats')
return [-1, -1, -1]
endif
return b:sy.stats
endfunction
" Function: #debug_detection {{{1
function! sy#repo#debug_detection()
if !exists('b:sy')
echomsg 'signify: I cannot detect any changes!'
return
endif
for vcs in s:vcs_list
let cmd = s:expand_cmd(vcs)
echohl Statement
echo cmd
echo repeat('=', len(cmd))
echohl NONE
let diff = s:run(vcs)
if v:shell_error
echohl ErrorMsg
echo diff
echohl NONE
else
echo empty(diff) ? "<none>" : diff
endif
echo "\n"
endfor
endfunction
" Function: s:initialize_job {{{1
function! s:initialize_job(vcs, do_register) abort
let vcs_cmd = s:expand_cmd(a:vcs)
if has('win32')
if has('nvim')
let cmd = &shell =~ 'cmd' ? vcs_cmd : ['sh', '-c', vcs_cmd]
else
let cmd = join([&shell, &shellcmdflag, vcs_cmd])
endif
else
let cmd = ['sh', '-c', vcs_cmd]
endif
let options = {
\ 'stdoutbuf': [],
\ 'vcs': a:vcs,
\ 'do_register': a:do_register,
\ 'bufnr': bufnr('%'),
\ }
return [cmd, options]
endfunction
" Function: s:get_vcs_path {{{1
function! s:get_vcs_path(vcs) abort
return (a:vcs =~# '\v(git|cvs|accurev|tfs)') ? b:sy_info.file : b:sy_info.path
endfunction
" Function: s:expand_cmd {{{1
function! s:expand_cmd(vcs) abort
let cmd = g:signify_vcs_cmds[a:vcs]
let cmd = s:replace(cmd, '%f', s:get_vcs_path(a:vcs))
let cmd = s:replace(cmd, '%d', s:difftool)
let cmd = s:replace(cmd, '%n', s:devnull)
let b:sy_info.cmd = cmd
return cmd
endfunction
" Function: s:run {{{1
function! s:run(vcs)
let [cwd, chdir] = sy#util#chdir()
try
execute chdir fnameescape(b:sy_info.dir)
let ret = system(s:expand_cmd(a:vcs))
catch
" This exception message can be seen via :SignifyDebugUnknown.
" E.g. unquoted VCS programs in vcd_cmds can lead to E484.
let ret = v:exception .' at '. v:throwpoint
finally
execute chdir fnameescape(cwd)
return ret
endtry
endfunction
" Function: s:replace {{{1
function! s:replace(cmd, pat, sub)
let parts = split(a:cmd, a:pat, 1)
return join(parts, a:sub)
endfunction
" Function: s:strip_context {{{1
function! s:strip_context(context)
let diff = []
let hunk = []
let state = 0
let lines = a:context
let linenr = 0
while linenr < len(lines)
let line = lines[linenr]
if state == 0
if line =~ "^@@ "
let tokens = matchlist(line, '^@@ -\v(\d+),?(\d*) \+(\d+),?(\d*)')
let old_line = str2nr(tokens[1])
let new_line = str2nr(tokens[3])
let old_count = empty(tokens[2]) ? 1 : str2nr(tokens[2])
let new_count = empty(tokens[4]) ? 1 : str2nr(tokens[4])
let hunk = []
let state = 1
else
call add(diff,line)
endif
let linenr += 1
elseif index([1,2,3],state) >= 0 && index(['\','/'],line[0]) >= 0
let linenr += 1
call add(hunk,line)
elseif state == 1
if line[0] == ' '
let old_line += 1
let new_line += 1
let old_count -= 1
let new_count -= 1
let linenr += 1
else
let old_count_part = 0
let new_count_part = 0
let state = 2
endif
elseif state == 2
if line[0] == '-'
call add(hunk,line)
let old_count_part += 1
let linenr += 1
else
let state = 3
endif
elseif state == 3
if line[0] == '+'
call add(hunk,line)
let new_count_part += 1
let linenr += 1
else
call add(diff, printf("@@ -%d%s +%d%s @@",(old_count_part == 0 && old_line > 0) ? old_line -1 : old_line, old_count_part == 1 ? "" : printf(",%d", old_count_part), (new_count_part == 0 && new_line > 0) ? new_line - 1 : new_line, new_count_part == 1 ? "" : printf(",%d", new_count_part)))
let diff += hunk
let hunk = []
let old_count -= old_count_part
let new_count -= new_count_part
let old_line += old_count_part
let new_line += new_count_part
let state = 1
endif
endif
if state > 0 && new_count <= 0 && old_count <= 0
if len(hunk) > 0
call add(diff, printf("@@ -%d%s +%d%s @@",(old_count_part == 0 && old_line > 0) ? old_line -1 : old_line, old_count_part == 1 ? "" : printf(",%d", old_count_part), (new_count_part == 0 && new_line > 0) ? new_line - 1 : new_line, new_count_part == 1 ? "" : printf(",%d", new_count_part)))
let diff = diff + hunk
let hunk = []
endif
let state = 0
endif
endwhile
if len(hunk) > 0
call add(diff, printf("@@ -%d%s +%d%s @@",(old_count_part == 0 && old_line > 0) ? old_line -1 : old_line, old_count_part == 1 ? "" : printf(",%d", old_count_part), (new_count_part == 0 && new_line > 0) ? new_line - 1 : new_line, new_count_part == 1 ? "" : printf(",%d", new_count_part)))
let diff = diff + hunk
let hunk = []
endif
return diff
endfunction
" Variables {{{1
let s:difftool = get(g:, 'signify_difftool', 'diff')
if executable(s:difftool)
let s:vcs_dict = {
\ 'git': 'git',
\ 'hg': 'hg',
\ 'svn': 'svn',
\ 'darcs': 'darcs',
\ 'bzr': 'bzr',
\ 'fossil': 'fossil',
\ 'cvs': 'cvs',
\ 'rcs': 'rcsdiff',
\ 'accurev': 'accurev',
\ 'perforce': 'p4',
\ 'tfs': 'tf'
\ }
else
echomsg 'signify: No diff tool found -> no support for svn, darcs, bzr, fossil.'
let s:vcs_dict = {
\ 'git': 'git',
\ 'hg': 'hg',
\ 'cvs': 'cvs',
\ 'rcs': 'rcsdiff',
\ 'accurev': 'accurev',
\ 'perforce': 'p4',
\ 'tfs': 'tf'
\ }
endif
let s:vcs_list = get(g:, 'signify_vcs_list', [])
if empty(s:vcs_list)
let s:vcs_list = keys(filter(s:vcs_dict, 'executable(v:val)'))
endif
let s:vcs_cmds = {
\ 'git': 'git diff --no-color --no-ext-diff -U0 -- %f',
\ 'hg': 'hg diff --config extensions.color=! --config defaults.diff= --nodates -U0 -- %f',
\ 'svn': 'svn diff --diff-cmd %d -x -U0 -- %f',
\ 'bzr': 'bzr diff --using %d --diff-options=-U0 -- %f',
\ 'darcs': 'darcs diff --no-pause-for-gui --diff-command="%d -U0 %1 %2" -- %f',
\ 'fossil': 'fossil set diff-command "%d -U 0" && fossil diff --unified -c 0 -- %f',
\ 'cvs': 'cvs diff -U0 -- %f',
\ 'rcs': 'rcsdiff -U0 %f 2>%n',
\ 'accurev': 'accurev diff %f -- -U0',
\ 'perforce': 'p4 info '. sy#util#shell_redirect('%n') .' && env P4DIFF=%d p4 diff -dU0 %f',
\ 'tfs': 'tf diff -version:W -noprompt -format:Unified %f'
\ }
if exists('g:signify_vcs_cmds')
call extend(g:signify_vcs_cmds, s:vcs_cmds, 'keep')
else
let g:signify_vcs_cmds = s:vcs_cmds
endif
let s:difftool = sy#util#escape(s:difftool)
let s:devnull = has('win32') || has ('win64') ? 'NUL' : '/dev/null'