vim-signify/autoload/sy/repo.vim
Eric Peters a1ddf6d524
Fossil: don't fall back to external 'diff' tool
Nowadays Fossil supports unified output without context on its own.

Fixes #281
2019-01-25 10:23:22 +01:00

503 lines
15 KiB
VimL

" vim: et sw=2 sts=2
scriptencoding utf-8
" Function: #detect {{{1
function! sy#repo#detect() abort
for vcs in s:vcs_list
let b:sy.detecting += 1
call sy#repo#get_diff_start(vcs)
endfor
endfunction
" Function: s:callback_nvim_stdout{{{1
function! s:callback_nvim_stdout(_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_nvim_exit {{{1
function! s:callback_nvim_exit(_job_id, exitval, _event) dict abort
call s:job_exit(self.bufnr, self.vcs, a:exitval, self.stdoutbuf)
endfunction
" Function: s:callback_vim_stdout {{{1
function! s:callback_vim_stdout(_job_id, data) dict abort
let self.stdoutbuf += [a:data]
endfunction
" Function: s:callback_vim_close {{{1
function! s:callback_vim_close(channel) dict abort
let job = ch_getjob(a:channel)
while 1
if job_status(job) == 'dead'
let exitval = job_info(job).exitval
break
endif
sleep 10m
endwhile
call s:job_exit(self.bufnr, self.vcs, exitval, self.stdoutbuf)
endfunction
" Function: s:job_exit {{{1
function! s:job_exit(bufnr, vcs, exitval, diff) abort
call sy#verbose('job_exit()', a:vcs)
let sy = getbufvar(a:bufnr, 'sy')
if empty(sy)
call sy#verbose(printf('No b:sy found for %s', bufname(a:bufnr)), a:vcs)
return
elseif !empty(sy.updated_by) && sy.updated_by != a:vcs
call sy#verbose(printf('Signs already got updated by %s.', sy.updated_by), a:vcs)
return
elseif empty(sy.vcs) && sy.active
let sy.detecting -= 1
endif
call sy#repo#get_diff_{a:vcs}(sy, a:exitval, a:diff)
call setbufvar(a:bufnr, 'sy_job_id_'.a:vcs, 0)
endfunction
" Function: sy#get_diff_start {{{1
function! sy#repo#get_diff_start(vcs) 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)
let [cwd, chdir] = sy#util#chdir()
call sy#verbose(['CMD: '. string(cmd), 'CMD DIR: '. b:sy.info.dir, 'ORIG DIR: '. cwd], a:vcs)
try
execute chdir fnameescape(b:sy.info.dir)
catch
echohl ErrorMsg
echomsg 'signify: Changing directory failed: '. b:sy.info.dir
echohl NONE
return
endtry
let b:sy_job_id_{a:vcs} = jobstart(cmd, extend(options, {
\ 'on_stdout': function('s:callback_nvim_stdout'),
\ 'on_exit': function('s:callback_nvim_exit'),
\ }))
execute chdir fnameescape(cwd)
" Newer Vim
elseif has('patch-7.4.1967')
if type(job_id) != type(0)
silent! call job_stop(job_id)
endif
let [cmd, options] = s:initialize_job(a:vcs)
let [cwd, chdir] = sy#util#chdir()
call sy#verbose(['CMD: '. string(cmd), 'CMD DIR: '. b:sy.info.dir, 'ORIG DIR: '. cwd], a:vcs)
try
execute chdir fnameescape(b:sy.info.dir)
catch
echohl ErrorMsg
echomsg 'signify: Changing directory failed: '. b:sy.info.dir
echohl NONE
return
endtry
let opts = {
\ 'in_io': 'null',
\ 'out_cb': function('s:callback_vim_stdout', options),
\ 'close_cb': function('s:callback_vim_close', options),
\ }
let b:sy_job_id_{a:vcs} = job_start(cmd, opts)
execute chdir fnameescape(cwd)
" Older Vim
else
let diff = split(s:run(a:vcs), '\n')
call sy#repo#get_diff_{a:vcs}(b:sy, v:shell_error, diff)
endif
endfunction
" Function: s:get_diff_end {{{1
function! s:get_diff_end(sy, found_diff, vcs, diff) abort
call sy#verbose('get_diff_end()', a:vcs)
if a:found_diff
if index(a:sy.vcs, a:vcs) == -1
let a:sy.vcs += [a:vcs]
endif
call sy#set_signs(a:sy, a:vcs, a:diff)
else
call sy#verbose('No valid diff found. Disabling this VCS.', a:vcs)
endif
endfunction
" Function: #get_diff_git {{{1
function! sy#repo#get_diff_git(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_hg {{{1
function! sy#repo#get_diff_hg(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_svn {{{1
function! sy#repo#get_diff_svn(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_bzr {{{1
function! sy#repo#get_diff_bzr(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_darcs {{{1
function! sy#repo#get_diff_darcs(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_fossil {{{1
function! sy#repo#get_diff_fossil(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_cvs {{{1
function! sy#repo#get_diff_cvs(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_rcs {{{1
function! sy#repo#get_diff_rcs(sy, exitval, diff) abort
call sy#verbose('get_diff_rcs()', 'rcs')
let [found_diff, diff] = a:exitval == 2 ? [0, []] : [1, a:diff]
call s:get_diff_end(a:sy, found_diff, 'rcs', diff)
endfunction
" Function: #get_diff_accurev {{{1
function! sy#repo#get_diff_accurev(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_perforce {{{1
function! sy#repo#get_diff_perforce(sy, exitval, diff) 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)
endfunction
" Function: #get_diff_tfs {{{1
function! sy#repo#get_diff_tfs(sy, exitval, diff) 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)
endfunction
" Function: #get_stats {{{1
function! sy#repo#get_stats() abort
return exists('b:sy') ? b:sy.stats : [-1, -1, -1]
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, g:signify_vcs_cmds)
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: #diffmode {{{1
function! sy#repo#diffmode(do_tab) abort
execute sy#util#return_if_no_changes()
let vcs = b:sy.updated_by
if !has_key(g:signify_vcs_cmds_diffmode, vcs)
echomsg 'SignifyDiff has no support for: '. vcs
echomsg 'Open an issue for it at: https://github.com/mhinz/vim-signify/issues'
return
endif
let cmd = s:expand_cmd(vcs, g:signify_vcs_cmds_diffmode)
call sy#verbose('SignifyDiff: '. cmd, vcs)
let ft = &filetype
let fenc = &fenc
if a:do_tab
tabedit %
endif
diffthis
let [cwd, chdir] = sy#util#chdir()
try
execute chdir fnameescape(b:sy.info.dir)
leftabove vnew
if has('iconv')
silent put =iconv(system(cmd), fenc, &enc)
else
silent put =system(cmd)
endif
finally
execute chdir fnameescape(cwd)
endtry
silent 1delete
diffthis
set buftype=nofile bufhidden=wipe nomodified
let &filetype = ft
wincmd p
normal! ]czt
endfunction
" Function: s:initialize_job {{{1
function! s:initialize_job(vcs) abort
let vcs_cmd = s:expand_cmd(a:vcs, g:signify_vcs_cmds)
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,
\ '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, vcs_cmds) abort
let cmd = a: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)
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, g:signify_vcs_cmds))
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
call sy#verbose('No "diff" executable found. Disable 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:default_vcs_cmds = {
\ 'git': 'git diff --no-color --no-ext-diff -U0 -- %f',
\ 'hg': 'hg diff --color=never --config aliases.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 --no-unified --diff-opts=-U0 -- %f',
\ 'fossil': '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') . (has('win32') ? ' &&' : ' && env P4DIFF= P4COLORS=') .' p4 diff -du0 %f',
\ 'tfs': 'tf diff -version:W -noprompt -format:Unified %f'
\ }
let s:default_vcs_cmds_diffmode = {
\ 'git': 'git show HEAD:./%f',
\ 'hg': 'hg cat %f',
\ 'svn': 'svn cat %f',
\ 'bzr': 'bzr cat %f',
\ 'darcs': 'darcs show contents -- %f',
\ 'cvs': 'cvs up -p -- %f 2>%n',
\ 'perforce': 'p4 print %f',
\ }
if exists('g:signify_vcs_cmds')
call extend(g:signify_vcs_cmds, s:default_vcs_cmds, 'keep')
else
let g:signify_vcs_cmds = s:default_vcs_cmds
endif
if exists('g:signify_vcs_cmds_diffmode')
call extend(g:signify_vcs_cmds_diffmode, s:default_vcs_cmds_diffmode, 'keep')
else
let g:signify_vcs_cmds_diffmode = s:default_vcs_cmds_diffmode
endif
let s:difftool = sy#util#escape(s:difftool)
let s:devnull = has('win32') || has ('win64') ? 'NUL' : '/dev/null'