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Merge pull request #449 from 10sr/jobSpawn

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Add `JobSpawn()` function for plugin interface
This commit is contained in:
Zachary Yedidia
2016-11-29 08:57:41 -05:00
committed by GitHub
parent 400ac56651 856acf4a51
commit d13f9602ff
3 changed files with 15 additions and 5 deletions
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11
cmd/micro/job.go
View File

@@ -40,15 +40,20 @@ func (f *CallbackFile) Write(data []byte) (int, error) {
return f.Writer.Write(data)
}
// JobStart starts a process in the background with the given callbacks
// JobStart starts a shell command in the background with the given callbacks
// It returns an *exec.Cmd as the job id
func JobStart(cmd string, onStdout, onStderr, onExit string, userargs ...string) *exec.Cmd {
split := strings.Split(cmd, " ")
args := split[1:]
cmdArgs := split[1:]
cmdName := split[0]
return JobSpawn(cmdName, cmdArgs, onStdout, onStderr, onExit, userargs...)
}
// JobSpawn starts a process with args in the background with the given callbacks
// It returns an *exec.Cmd as the job id
func JobSpawn(cmdName string, cmdArgs []string, onStdout, onStderr, onExit string, userargs ...string) *exec.Cmd {
// Set up everything correctly if the functions have been provided
proc := exec.Command(cmdName, args...)
proc := exec.Command(cmdName, cmdArgs...)
var outbuf bytes.Buffer
if onStdout != "" {
proc.Stdout = &CallbackFile{&outbuf, LuaFunctionJob(onStdout), userargs}

1
cmd/micro/micro.go
View File

@@ -351,6 +351,7 @@ func main() {
// Used for asynchronous jobs
L.SetGlobal("JobStart", luar.New(L, JobStart))
L.SetGlobal("JobSpawn", luar.New(L, JobSpawn))
L.SetGlobal("JobSend", luar.New(L, JobSend))
L.SetGlobal("JobStop", luar.New(L, JobStop))

8
runtime/help/plugins.md
View File

@@ -92,12 +92,16 @@ as Go's GOOS variable, so `darwin`, `windows`, `linux`, `freebsd`...)
* `ByteOffset(loc Loc, buf *Buffer) int`: exactly like `ToCharPos` except it it counts bytes instead of runes.
* `JobStart(cmd string, onStdout, onStderr, onExit string, userargs ...string)`:
Starts running the given shell command in the background. `onStdout` `onStderr` and `onExit`
* `JobSpawn(cmdName string, cmdArgs []string, onStdout, onStderr, onExit string, userargs ...string)`:
Starts running the given process in the background. `onStdout` `onStderr` and `onExit`
are callbacks to lua functions which will be called when the given actions happen
to the background process.
`userargs` are the arguments which will get passed to the callback functions
* `JobStart(cmd string, onStdout, onStderr, onExit string, userargs ...string)`:
Starts running the given shell command in the background.
This function is a shorthand for `JobSpawn`.
* `JobSend(cmd *exec.Cmd, data string)`: send a string into the stdin of the job process
* `JobStop(cmd *exec.Cmd)`: kill a job