211 lines
6.1 KiB
VimL
211 lines
6.1 KiB
VimL
let s:jobs = {}
|
|
|
|
" Nvim has always supported async commands.
|
|
"
|
|
" Vim introduced async in 7.4.1826.
|
|
"
|
|
" gVim didn't support aync until 7.4.1850 (though I haven't been able to
|
|
" verify this myself).
|
|
"
|
|
" MacVim-GUI didn't support async until 7.4.1832 (actually commit
|
|
" 88f4fe0 but 7.4.1832 was the first subsequent patch release).
|
|
let s:available = has('nvim') || (
|
|
\ has('job') && (
|
|
\ (has('patch-7-4-1826') && !has('gui_running')) ||
|
|
\ (has('patch-7-4-1850') && has('gui_running')) ||
|
|
\ (has('patch-7-4-1832') && has('gui_macvim'))
|
|
\ )
|
|
\ )
|
|
|
|
function! gitgutter#async#available()
|
|
return s:available
|
|
endfunction
|
|
|
|
function! gitgutter#async#execute(cmd) abort
|
|
let bufnr = gitgutter#utility#bufnr()
|
|
|
|
if has('nvim')
|
|
if has('unix')
|
|
let command = ["sh", "-c", a:cmd]
|
|
elseif has('win32')
|
|
let command = ["cmd.exe", "/c", a:cmd]
|
|
else
|
|
throw 'unknown os'
|
|
endif
|
|
" Make the job use a shell while avoiding (un)quoting problems.
|
|
let job_id = jobstart(command, {
|
|
\ 'buffer': bufnr,
|
|
\ 'on_stdout': function('gitgutter#async#handle_diff_job_nvim'),
|
|
\ 'on_stderr': function('gitgutter#async#handle_diff_job_nvim'),
|
|
\ 'on_exit': function('gitgutter#async#handle_diff_job_nvim')
|
|
\ })
|
|
call gitgutter#debug#log('[nvim job: '.job_id.', buffer: '.bufnr.'] '.a:cmd)
|
|
if job_id < 1
|
|
throw 'diff failed'
|
|
endif
|
|
|
|
" Note that when `cmd` doesn't produce any output, i.e. the diff is empty,
|
|
" the `stdout` event is not fired on the job handler. Therefore we keep
|
|
" track of the jobs ourselves so we can spot empty diffs.
|
|
call s:job_started(job_id)
|
|
|
|
else
|
|
" Make the job use a shell.
|
|
"
|
|
" Pass a handler for stdout but not for stderr so that errors are
|
|
" ignored (and thus signs are not updated; this assumes that an error
|
|
" only occurs when a file is not tracked by git).
|
|
|
|
if has('unix')
|
|
let command = ["sh", "-c", a:cmd]
|
|
elseif has('win32')
|
|
" Help docs recommend {command} be a string on Windows. But I think
|
|
" they also say that will run the command directly, which I believe would
|
|
" mean the redirection and pipe stuff wouldn't work.
|
|
" let command = "cmd.exe /c ".a:cmd
|
|
let command = ["cmd.exe", "/c", a:cmd]
|
|
else
|
|
throw 'unknown os'
|
|
endif
|
|
|
|
let job = job_start(command, {
|
|
\ 'out_cb': 'gitgutter#async#handle_diff_job_vim',
|
|
\ 'close_cb': 'gitgutter#async#handle_diff_job_vim_close'
|
|
\ })
|
|
call gitgutter#debug#log('[vim job: '.string(job_info(job)).', buffer: '.bufnr.'] '.a:cmd)
|
|
|
|
call s:job_started(s:channel_id(job_getchannel(job)), bufnr)
|
|
endif
|
|
endfunction
|
|
|
|
|
|
function! gitgutter#async#handle_diff_job_nvim(job_id, data, event) abort
|
|
call gitgutter#debug#log('job_id: '.a:job_id.', event: '.a:event.', buffer: '.self.buffer)
|
|
|
|
let job_bufnr = self.buffer
|
|
if bufexists(job_bufnr)
|
|
let current_buffer = gitgutter#utility#bufnr()
|
|
call gitgutter#utility#set_buffer(job_bufnr)
|
|
|
|
if a:event == 'stdout'
|
|
" a:data is a list
|
|
call s:job_finished(a:job_id)
|
|
if gitgutter#utility#is_active()
|
|
call gitgutter#handle_diff(gitgutter#utility#stringify(a:data))
|
|
endif
|
|
|
|
elseif a:event == 'exit'
|
|
" If the exit event is triggered without a preceding stdout event,
|
|
" the diff was empty.
|
|
if s:is_job_started(a:job_id)
|
|
if gitgutter#utility#is_active()
|
|
call gitgutter#handle_diff("")
|
|
endif
|
|
call s:job_finished(a:job_id)
|
|
endif
|
|
|
|
else " a:event is stderr
|
|
call gitgutter#hunk#reset()
|
|
call s:job_finished(a:job_id)
|
|
|
|
endif
|
|
|
|
call gitgutter#utility#set_buffer(current_buffer)
|
|
else
|
|
call s:job_finished(a:job_id)
|
|
endif
|
|
endfunction
|
|
|
|
|
|
" Channel is in NL mode.
|
|
function! gitgutter#async#handle_diff_job_vim(channel, line) abort
|
|
call gitgutter#debug#log('channel: '.a:channel.', line: '.a:line)
|
|
|
|
call s:accumulate_job_output(s:channel_id(a:channel), a:line)
|
|
endfunction
|
|
|
|
function! gitgutter#async#handle_diff_job_vim_close(channel) abort
|
|
call gitgutter#debug#log('channel: '.a:channel)
|
|
|
|
let channel_id = s:channel_id(a:channel)
|
|
let job_bufnr = s:job_buffer(channel_id)
|
|
|
|
if bufexists(job_bufnr)
|
|
let current_buffer = gitgutter#utility#bufnr()
|
|
call gitgutter#utility#set_buffer(job_bufnr)
|
|
|
|
if gitgutter#utility#is_active()
|
|
call gitgutter#handle_diff(s:job_output(channel_id))
|
|
endif
|
|
|
|
call gitgutter#utility#set_buffer(current_buffer)
|
|
endif
|
|
call s:job_finished(channel_id)
|
|
endfunction
|
|
|
|
|
|
function! s:channel_id(channel) abort
|
|
return ch_info(a:channel)['id']
|
|
endfunction
|
|
|
|
|
|
"
|
|
" Keep track of jobs.
|
|
"
|
|
" nvim: receives all the job's output at once so we don't need to accumulate
|
|
" it ourselves. We can pass the buffer number into the job so we don't need
|
|
" to track that either.
|
|
"
|
|
" s:jobs {} -> key: job's id, value: anything truthy
|
|
"
|
|
" vim: receives the job's output line by line so we need to accumulate it.
|
|
" We also need to keep track of the buffer the job is running for.
|
|
" Vim job's don't have an id. Instead we could use the external process's id
|
|
" or the channel's id (there seems to be 1 channel per job). Arbitrarily
|
|
" choose the channel's id.
|
|
"
|
|
" s:jobs {} -> key: channel's id, value: {} key: output, value: [] job's output
|
|
" key: buffer: value: buffer number
|
|
|
|
|
|
" nvim:
|
|
" id: job's id
|
|
"
|
|
" vim:
|
|
" id: channel's id
|
|
" arg: buffer number
|
|
function! s:job_started(id, ...) abort
|
|
if a:0 " vim
|
|
let s:jobs[a:id] = {'output': [], 'buffer': a:1}
|
|
else " nvim
|
|
let s:jobs[a:id] = 1
|
|
endif
|
|
endfunction
|
|
|
|
function! s:is_job_started(id) abort
|
|
return has_key(s:jobs, a:id)
|
|
endfunction
|
|
|
|
function! s:accumulate_job_output(id, line) abort
|
|
call add(s:jobs[a:id].output, a:line)
|
|
endfunction
|
|
|
|
" Returns a string
|
|
function! s:job_output(id) abort
|
|
if has_key(s:jobs, a:id)
|
|
return gitgutter#utility#stringify(s:jobs[a:id].output)
|
|
else
|
|
return ""
|
|
endif
|
|
endfunction
|
|
|
|
function! s:job_buffer(id) abort
|
|
return s:jobs[a:id].buffer
|
|
endfunction
|
|
|
|
function! s:job_finished(id) abort
|
|
if has_key(s:jobs, a:id)
|
|
unlet s:jobs[a:id]
|
|
endif
|
|
endfunction
|
|
|