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Signed-off-by: Andres Taylor <[email protected]>
test: make sure to report what goes wrong when cluster can't start Signed-off-by: Andres Taylor <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| /* | ||
| Copyright 2024 The Vitess Authors. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package cluster | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "os" | ||
| "os/exec" | ||
| ) | ||
|
|
||
| type processInfo struct { | ||
| proc *exec.Cmd | ||
| stdout bytes.Buffer | ||
| stderr bytes.Buffer | ||
| } | ||
|
|
||
| func newCommand(name string, arg ...string) *processInfo { | ||
| pi := &processInfo{ | ||
| proc: exec.Command(name, arg...), | ||
| } | ||
| pi.proc.Stdout = &pi.stdout | ||
| pi.proc.Stderr = &pi.stderr | ||
| return pi | ||
| } | ||
|
|
||
| func (pi *processInfo) addArgs(arg ...string) { | ||
| pi.proc.Args = append(pi.proc.Args, arg...) | ||
| } | ||
|
|
||
| func (pi *processInfo) getArgs() []string { | ||
| return pi.proc.Args | ||
| } | ||
|
|
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| func (pi *processInfo) addEnv(arg ...string) { | ||
| pi.proc.Env = append(pi.proc.Env, arg...) | ||
| } | ||
|
|
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| func (pi *processInfo) failed(err error) error { | ||
| if err == nil { | ||
| return nil | ||
| } | ||
| message := "failed to run %v: \n%w" | ||
| if out := pi.stdout.String(); out != "" { | ||
| message += fmt.Sprintf("\nstdout: %s", out) | ||
| } | ||
| if out := pi.stderr.String(); out != "" { | ||
| message += fmt.Sprintf("\nstderr: %s", out) | ||
| } | ||
|
|
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| return fmt.Errorf(message, pi.proc.Args, err) | ||
| } | ||
|
|
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| func (pi *processInfo) start() error { | ||
| err := pi.proc.Start() | ||
| return pi.failed(err) | ||
| } | ||
|
|
||
| func (pi *processInfo) wait() error { | ||
| err := pi.proc.Wait() | ||
| return pi.failed(err) | ||
| } | ||
|
|
||
| func (pi *processInfo) process() *os.Process { | ||
| return pi.proc.Process | ||
| } | ||
|
|
||
| func (pi *processInfo) run() error { | ||
| err := pi.proc.Run() | ||
| return pi.failed(err) | ||
| } |
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