574 lines
17 KiB
VimL
574 lines
17 KiB
VimL
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" don't spam the user when Vim is started in Vi compatibility mode
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let s:cpo_save = &cpo
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set cpo&vim
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" Spawn starts an asynchronous job. See the description of go#job#Options to
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" understand the args parameter.
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"
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" Spawn returns a job.
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function! go#job#Spawn(cmd, args)
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let l:options = go#job#Options(a:args)
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return go#job#Start(a:cmd, l:options)
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endfunction
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" Options returns callbacks to be used with job_start. It is abstracted to be
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" used with various go commands, such as build, test, install, etc.. This
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" allows us to avoid writing the same callback over and over for some
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" commands. It's fully customizable so each command can change it to its own
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" logic.
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"
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" args is a dictionary with the these keys:
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" 'bang':
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" Set to 0 to jump to the first error in the error list.
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" Defaults to 0.
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" 'statustype':
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" The status type to use when updating the status.
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" See statusline.vim.
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" 'for':
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" The g:go_list_type_command key to use to get the error list type to use.
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" Errors will not be handled when the value is '_'.
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" Defaults to '_job'
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" 'errorformat':
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" The errorformat string to use when parsing errors. Defaults to
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" &errorformat.
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" See :help 'errorformat'.
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" 'complete':
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" A function to call after the job exits and the channel is closed. The
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" function will be passed three arguments: the job, its exit code, and the
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" list of messages received from the channel. The default is a no-op. A
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" custom value can modify the messages before they are processed by the
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" returned exit_cb and close_cb callbacks. When the function is called,
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" the current window will be the window that was hosting the buffer when
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" the job was started. After it returns, the current window will be
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" restored to what it was before the function was called.
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" 'preserveerrors':
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" A function that will be passed one value, the list type. It should
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" return a boolean value that indicates whether any errors encountered
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" should be consider additive to the existing set of errors. This is
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" mostly useful for a set of commands that are run via autocmds.
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"
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" The return value is a dictionary with these keys:
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" 'callback':
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" A function suitable to be passed as a job callback handler. See
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" job-callback.
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" 'exit_cb':
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" A function suitable to be passed as a job exit_cb handler. See
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" job-exit_cb.
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" 'close_cb':
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" A function suitable to be passed as a job close_cb handler. See
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" job-close_cb.
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" 'cwd':
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" The path to the directory which contains the current buffer. The
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" callbacks are configured to expect this directory is the working
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" directory for the job; it should not be modified by callers.
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function! go#job#Options(args)
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let cbs = {}
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let state = {
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\ 'winid': win_getid(winnr()),
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\ 'dir': getcwd(),
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\ 'jobdir': expand("%:p:h"),
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\ 'messages': [],
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\ 'bang': 0,
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\ 'for': "_job",
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\ 'exited': 0,
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\ 'exit_status': 0,
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\ 'closed': 0,
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\ 'errorformat': &errorformat,
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\ 'statustype' : '',
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\ }
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let cbs.cwd = state.jobdir
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if has_key(a:args, 'bang')
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let state.bang = a:args.bang
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endif
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if has_key(a:args, 'for')
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let state.for = a:args.for
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endif
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if has_key(a:args, 'statustype')
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let state.statustype = a:args.statustype
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endif
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if has_key(a:args, 'errorformat')
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let state.errorformat = a:args.errorformat
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endif
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if has_key(a:args, 'preserveerrors')
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let state.preserveerrors = a:args.preserveerrors
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endif
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function state.complete(job, exit_status, data)
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if has_key(self, 'custom_complete')
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let l:winid = win_getid(winnr())
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" Always set the active window to the window that was active when the job
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" was started. Among other things, this makes sure that the correct
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" window's location list will be populated when the list type is
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" 'location' and the user has moved windows since starting the job.
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call win_gotoid(self.winid)
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call self.custom_complete(a:job, a:exit_status, a:data)
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call win_gotoid(l:winid)
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endif
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call self.show_errors(a:job, a:exit_status, a:data)
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endfunction
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function state.show_status(job, exit_status) dict
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if self.statustype == ''
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return
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endif
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if go#config#EchoCommandInfo()
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let prefix = '[' . self.statustype . '] '
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if a:exit_status == 0
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call go#util#EchoSuccess(prefix . "SUCCESS")
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else
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call go#util#EchoError(prefix . "FAIL")
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endif
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endif
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let status = {
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\ 'desc': 'last status',
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\ 'type': self.statustype,
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\ 'state': "success",
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\ }
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if a:exit_status
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let status.state = "failed"
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endif
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if has_key(self, 'started_at')
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let elapsed_time = reltimestr(reltime(self.started_at))
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" strip whitespace
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let elapsed_time = substitute(elapsed_time, '^\s*\(.\{-}\)\s*$', '\1', '')
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let status.state .= printf(" (%ss)", elapsed_time)
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endif
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call go#statusline#Update(self.jobdir, status)
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endfunction
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if has_key(a:args, 'complete')
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let state.custom_complete = a:args.complete
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endif
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" explicitly bind _start to state so that within it, self will
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" always refer to state. See :help Partial for more information.
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"
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" _start is intended only for internal use and should not be referenced
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" outside of this file.
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let cbs._start = function('s:start', [''], state)
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" explicitly bind callback to state so that within it, self will
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" always refer to state. See :help Partial for more information.
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let cbs.callback = function('s:callback', [], state)
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" explicitly bind exit_cb to state so that within it, self will always refer
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" to state. See :help Partial for more information.
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let cbs.exit_cb = function('s:exit_cb', [], state)
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" explicitly bind close_cb to state so that within it, self will
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" always refer to state. See :help Partial for more information.
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let cbs.close_cb = function('s:close_cb', [], state)
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function state.show_errors(job, exit_status, data)
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if self.for == '_'
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return
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endif
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let l:winid = win_getid(winnr())
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" Always set the active window to the window that was active when the job
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" was started. Among other things, this makes sure that the correct
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" window's location list will be populated when the list type is
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" 'location' and the user has moved windows since starting the job.
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call win_gotoid(self.winid)
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let l:listtype = go#list#Type(self.for)
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let l:preserveerrors = 0
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if has_key(self, 'preserveerrors')
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let l:preserveerrors = self.preserveerrors(l:listtype)
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endif
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if a:exit_status == 0
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if !l:preserveerrors
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call go#list#Clean(l:listtype)
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call win_gotoid(l:winid)
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endif
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return
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endif
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let l:listtype = go#list#Type(self.for)
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if len(a:data) == 0
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if !l:preserveerrors
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call go#list#Clean(l:listtype)
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call win_gotoid(l:winid)
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endif
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return
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endif
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let out = join(self.messages, "\n")
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try
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" parse the errors relative to self.jobdir
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call go#util#Chdir(self.jobdir)
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call go#list#ParseFormat(l:listtype, self.errorformat, out, self.for, l:preserveerrors)
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let errors = go#list#Get(l:listtype)
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finally
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call go#util#Chdir(self.dir)
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endtry
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if empty(errors)
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" failed to parse errors, output the original content
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call go#util#EchoError([self.dir] + self.messages)
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call win_gotoid(l:winid)
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return
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endif
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" only open the error window if user was still in the window from which
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" the job was started.
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if self.winid == l:winid
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call go#list#Window(l:listtype, len(errors))
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if self.bang
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call win_gotoid(l:winid)
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else
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call go#list#JumpToFirst(l:listtype)
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endif
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endif
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endfunction
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return cbs
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endfunction
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function! s:start(args) dict
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if go#config#EchoCommandInfo() && self.statustype != ""
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let prefix = '[' . self.statustype . '] '
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call go#util#EchoSuccess(prefix . "dispatched")
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endif
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if self.statustype != ''
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let status = {
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\ 'desc': 'current status',
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\ 'type': self.statustype,
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\ 'state': "started",
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\ }
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call go#statusline#Update(self.jobdir, status)
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endif
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let self.started_at = reltime()
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endfunction
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function! s:callback(chan, msg) dict
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call add(self.messages, a:msg)
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endfunction
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function! s:exit_cb(job, exitval) dict
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let self.exit_status = a:exitval
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let self.exited = 1
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call self.show_status(a:job, a:exitval)
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if self.closed || has('nvim')
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call self.complete(a:job, self.exit_status, self.messages)
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endif
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endfunction
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function! s:close_cb(ch) dict
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let self.closed = 1
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if self.exited
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let job = ch_getjob(a:ch)
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call self.complete(job, self.exit_status, self.messages)
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endif
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endfunction
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" go#job#Start runs a job. The options are expected to be the options
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" suitable for Vim8 jobs. When called from Neovim, Vim8 options will be
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" transformed to their Neovim equivalents.
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function! go#job#Start(cmd, options)
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let l:options = copy(a:options)
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if has('nvim')
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let l:options = s:neooptions(l:options)
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endif
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" Verify that the working directory for the job actually exists. Return
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" early if the directory does not exist. This helps avoid errors when
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" working with plugins that use virtual files that don't actually exist on
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" the file system.
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let l:filedir = expand("%:p:h")
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if has_key(l:options, 'cwd') && !isdirectory(l:options.cwd)
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return
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elseif !isdirectory(l:filedir)
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return
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endif
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let l:manualcd = 0
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if !has_key(l:options, 'cwd')
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" pre start
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let l:manualcd = 1
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let l:dir = go#util#Chdir(filedir)
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endif
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if has_key(l:options, '_start')
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call l:options._start()
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" remove _start to play nicely with vim (when vim encounters an unexpected
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" job option it reports an "E475: invalid argument" error).
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unlet l:options._start
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endif
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" noblock was added in 8.1.350; remove it if it's not supported.
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if has_key(l:options, 'noblock') && (has('nvim') || !has("patch-8.1.350"))
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call remove(l:options, 'noblock')
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endif
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if go#util#HasDebug('shell-commands')
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call go#util#EchoInfo('job command: ' . string(a:cmd))
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endif
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if has('nvim')
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let l:input = []
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if has_key(a:options, 'in_io') && a:options.in_io ==# 'file' && !empty(a:options.in_name)
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let l:input = readfile(a:options.in_name, "b")
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endif
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let job = jobstart(a:cmd, l:options)
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if len(l:input) > 0
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call chansend(job, l:input)
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" close stdin to signal that no more bytes will be sent.
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call chanclose(job, 'stdin')
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endif
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else
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let l:cmd = a:cmd
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if go#util#IsWin()
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let l:cmd = join(map(copy(a:cmd), function('s:winjobarg')), " ")
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endif
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let job = job_start(l:cmd, l:options)
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endif
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if l:manualcd
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" post start
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call go#util#Chdir(l:dir)
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endif
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return job
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endfunction
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" s:neooptions returns a dictionary of job options suitable for use by Neovim
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" based on a dictionary of job options suitable for Vim8.
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function! s:neooptions(options)
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let l:options = {}
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let l:options['stdout_buf'] = ''
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let l:options['stderr_buf'] = ''
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let l:err_mode = get(a:options, 'err_mode', get(a:options, 'mode', ''))
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let l:out_mode = get(a:options, 'out_mode', get(a:options, 'mode', ''))
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for key in keys(a:options)
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if key == 'cwd'
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let l:options['cwd'] = a:options['cwd']
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continue
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|
endif
|
||
|
|
|
||
|
|
if key == 'callback'
|
||
|
|
let l:options['callback'] = a:options['callback']
|
||
|
|
|
||
|
|
if !has_key(a:options, 'out_cb')
|
||
|
|
let l:options['on_stdout'] = function('s:callback2on_stdout', [l:out_mode], l:options)
|
||
|
|
endif
|
||
|
|
|
||
|
|
if !has_key(a:options, 'err_cb')
|
||
|
|
let l:options['on_stderr'] = function('s:callback2on_stderr', [l:err_mode], l:options)
|
||
|
|
endif
|
||
|
|
|
||
|
|
continue
|
||
|
|
endif
|
||
|
|
|
||
|
|
if key == 'out_cb'
|
||
|
|
let l:options['out_cb'] = a:options['out_cb']
|
||
|
|
let l:options['on_stdout'] = function('s:on_stdout', [l:out_mode], l:options)
|
||
|
|
|
||
|
|
continue
|
||
|
|
endif
|
||
|
|
|
||
|
|
if key == 'err_cb'
|
||
|
|
let l:options['err_cb'] = a:options['err_cb']
|
||
|
|
let l:options['on_stderr'] = function('s:on_stderr', [l:err_mode], l:options)
|
||
|
|
|
||
|
|
continue
|
||
|
|
endif
|
||
|
|
|
||
|
|
if key == 'exit_cb'
|
||
|
|
let l:options['exit_cb'] = a:options['exit_cb']
|
||
|
|
let l:options['on_exit'] = function('s:on_exit', [], l:options)
|
||
|
|
|
||
|
|
continue
|
||
|
|
endif
|
||
|
|
|
||
|
|
if key == 'close_cb'
|
||
|
|
continue
|
||
|
|
endif
|
||
|
|
|
||
|
|
if key == 'stoponexit'
|
||
|
|
if a:options['stoponexit'] == ''
|
||
|
|
let l:options['detach'] = 1
|
||
|
|
endif
|
||
|
|
continue
|
||
|
|
endif
|
||
|
|
endfor
|
||
|
|
return l:options
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! s:callback2on_stdout(mode, ch, data, event) dict
|
||
|
|
let self.stdout_buf = s:neocb(a:mode, a:ch, self.stdout_buf, a:data, self.callback)
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! s:callback2on_stderr(mode, ch, data, event) dict
|
||
|
|
let self.stderr_buf = s:neocb(a:mode, a:ch, self.stderr_buf, a:data, self.callback)
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! s:on_stdout(mode, ch, data, event) dict
|
||
|
|
let self.stdout_buf = s:neocb(a:mode, a:ch, self.stdout_buf, a:data, self.out_cb)
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! s:on_stderr(mode, ch, data, event) dict
|
||
|
|
let self.stderr_buf = s:neocb(a:mode, a:ch, self.stderr_buf, a:data, self.err_cb )
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! s:on_exit(jobid, exitval, event) dict
|
||
|
|
call self.exit_cb(a:jobid, a:exitval)
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! go#job#Stop(job) abort
|
||
|
|
if has('nvim')
|
||
|
|
call jobstop(a:job)
|
||
|
|
return
|
||
|
|
endif
|
||
|
|
|
||
|
|
call job_stop(a:job)
|
||
|
|
call go#job#Wait(a:job)
|
||
|
|
return
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! go#job#Wait(job) abort
|
||
|
|
if has('nvim')
|
||
|
|
call jobwait([a:job])
|
||
|
|
return
|
||
|
|
endif
|
||
|
|
|
||
|
|
while job_status(a:job) is# 'run'
|
||
|
|
sleep 50m
|
||
|
|
endwhile
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! s:winjobarg(idx, val) abort
|
||
|
|
if empty(a:val)
|
||
|
|
return '""'
|
||
|
|
endif
|
||
|
|
return a:val
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! s:neocb(mode, ch, buf, data, callback)
|
||
|
|
" dealing with the channel lines of Neovim is awful. The docs (:help
|
||
|
|
" channel-lines) say:
|
||
|
|
" stream event handlers may receive partial (incomplete) lines. For a
|
||
|
|
" given invocation of on_stdout etc, `a:data` is not guaranteed to end
|
||
|
|
" with a newline.
|
||
|
|
" - `abcdefg` may arrive as `['abc']`, `['defg']`.
|
||
|
|
" - `abc\nefg` may arrive as `['abc', '']`, `['efg']` or `['abc']`,
|
||
|
|
" `['','efg']`, or even `['ab']`, `['c','efg']`.
|
||
|
|
"
|
||
|
|
" Thankfully, though, this is explained a bit better in an issue:
|
||
|
|
" https://github.com/neovim/neovim/issues/3555. Specifically in these two
|
||
|
|
" comments:
|
||
|
|
" * https://github.com/neovim/neovim/issues/3555#issuecomment-152290804
|
||
|
|
" * https://github.com/neovim/neovim/issues/3555#issuecomment-152588749
|
||
|
|
"
|
||
|
|
" The key is
|
||
|
|
" Every item in the list passed to job control callbacks represents a
|
||
|
|
" string after a newline(Except the first, of course). If the program
|
||
|
|
" outputs: "hello\nworld" the corresponding list is ["hello", "world"].
|
||
|
|
" If the program outputs "hello\nworld\n", the corresponding list is
|
||
|
|
" ["hello", "world", ""]. In other words, you can always determine if
|
||
|
|
" the last line received is complete or not.
|
||
|
|
" and
|
||
|
|
" for every list you receive in a callback, all items except the first
|
||
|
|
" represent newlines.
|
||
|
|
|
||
|
|
let l:buf = ''
|
||
|
|
|
||
|
|
" A single empty string means EOF was reached. The first item will never be
|
||
|
|
" an empty string except for when it's the only item and is signaling that
|
||
|
|
" EOF was reached.
|
||
|
|
if len(a:data) == 1 && a:data[0] == ''
|
||
|
|
" when there's nothing buffered, return early so that an
|
||
|
|
" erroneous message will not be added.
|
||
|
|
if a:buf == ''
|
||
|
|
return ''
|
||
|
|
endif
|
||
|
|
|
||
|
|
let l:data = [a:buf]
|
||
|
|
else
|
||
|
|
let l:data = copy(a:data)
|
||
|
|
let l:data[0] = a:buf . l:data[0]
|
||
|
|
|
||
|
|
" The last element may be a partial line; save it for next time.
|
||
|
|
if a:mode != 'raw'
|
||
|
|
let l:buf = l:data[-1]
|
||
|
|
let l:data = l:data[:-2]
|
||
|
|
endif
|
||
|
|
endif
|
||
|
|
|
||
|
|
let l:i = 0
|
||
|
|
let l:last = len(l:data) - 1
|
||
|
|
while l:i <= l:last
|
||
|
|
let l:msg = l:data[l:i]
|
||
|
|
if a:mode == 'raw' && l:i < l:last
|
||
|
|
let l:msg = l:msg . "\n"
|
||
|
|
endif
|
||
|
|
if a:mode == 'raw'
|
||
|
|
call s:queueneocb(function(a:callback, [a:ch, l:msg]))
|
||
|
|
else
|
||
|
|
call a:callback(a:ch, l:msg)
|
||
|
|
endif
|
||
|
|
|
||
|
|
let l:i += 1
|
||
|
|
endwhile
|
||
|
|
|
||
|
|
return l:buf
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" s:neocbs is used to workaround limitations of how Neovim limits the use of
|
||
|
|
" callbacks. This is particularly important when dealing with a raw channel
|
||
|
|
" whose data triggers further communication and more data on the channel and
|
||
|
|
" both the original response handler and the next response handler are
|
||
|
|
" awaited using go#promise (e.g. as is the case with go#lsp#Rename).
|
||
|
|
let s:neocbs = []
|
||
|
|
function! s:dequeueneocbs(timer) abort
|
||
|
|
for l:Fn in s:neocbs
|
||
|
|
try
|
||
|
|
call remove(s:neocbs, 0)
|
||
|
|
call call(l:Fn, [])
|
||
|
|
finally
|
||
|
|
endtry
|
||
|
|
endfor
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
function! s:queueneocb(fn) abort
|
||
|
|
let l:shouldStart = len(s:neocbs) == 0
|
||
|
|
|
||
|
|
let s:neocbs = add(s:neocbs, a:fn)
|
||
|
|
|
||
|
|
if l:shouldStart
|
||
|
|
call timer_start(10, function('s:dequeueneocbs', []))
|
||
|
|
endif
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" restore Vi compatibility settings
|
||
|
|
let &cpo = s:cpo_save
|
||
|
|
unlet s:cpo_save
|
||
|
|
|
||
|
|
" vim: sw=2 ts=2 et
|