55 lines
1.5 KiB
Lua
55 lines
1.5 KiB
Lua
-- Copyright (c) 2020-2021 shadmansaleh
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-- MIT license, see LICENSE for more details.
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--- wrapper around job api
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--- creates a job handler when called
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local Job = setmetatable({
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--- start the job
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start = function(self)
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self.job_id = vim.fn.jobstart(self.args.cmd, self.args)
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return self.job_id > 0
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end,
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--- stop the job. Also immediately disables io from the job.
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stop = function(self)
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if self.killed then
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return
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end
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if self.job_id and self.job_id > 0 then
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vim.fn.jobstop(self.job_id)
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end
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self.job_id = 0
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self.killed = true
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end,
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-- Wraps callbacks so they are only called when job is alive
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-- This avoids race conditions
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wrap_cb_alive = function(self, name)
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local original_cb = self.args[name]
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if original_cb then
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self.args[name] = function(...)
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if not self.killed then
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return original_cb(...)
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end
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end
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end
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end,
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}, {
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---create new job handler
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---@param self table base job table
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---@param args table same args as jobstart except cmd is also passed in part of it
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---@return table new job handler
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__call = function(self, args)
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args = vim.deepcopy(args or {})
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if type(args.cmd) == 'string' then
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args.cmd = vim.split(args.cmd, ' ')
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end
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self.__index = self
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local job = setmetatable({ args = args }, self)
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job:wrap_cb_alive('on_stdout')
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job:wrap_cb_alive('on_stderr')
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job:wrap_cb_alive('on_stdin')
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return job
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end,
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})
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return Job
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