goext/cmdext/builder.go

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package cmdext
import (
"fmt"
"gogs.mikescher.com/BlackForestBytes/goext/langext"
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"time"
)
type CommandRunner struct {
program string
args []string
timeout *time.Duration
env []string
listener []CommandListener
enforceExitCodes *[]int
enforceNoTimeout bool
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enforceNoStderr bool
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}
func Runner(program string) *CommandRunner {
return &CommandRunner{
program: program,
args: make([]string, 0),
timeout: nil,
env: make([]string, 0),
listener: make([]CommandListener, 0),
enforceExitCodes: nil,
enforceNoTimeout: false,
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enforceNoStderr: false,
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}
}
func (r *CommandRunner) Arg(arg string) *CommandRunner {
r.args = append(r.args, arg)
return r
}
func (r *CommandRunner) Args(arg []string) *CommandRunner {
r.args = append(r.args, arg...)
return r
}
func (r *CommandRunner) Timeout(timeout time.Duration) *CommandRunner {
r.timeout = &timeout
return r
}
func (r *CommandRunner) Env(key, value string) *CommandRunner {
r.env = append(r.env, fmt.Sprintf("%s=%s", key, value))
return r
}
func (r *CommandRunner) RawEnv(env string) *CommandRunner {
r.env = append(r.env, env)
return r
}
func (r *CommandRunner) Envs(env []string) *CommandRunner {
r.env = append(r.env, env...)
return r
}
func (r *CommandRunner) EnsureExitcode(arg ...int) *CommandRunner {
r.enforceExitCodes = langext.Ptr(langext.ForceArray(arg))
return r
}
func (r *CommandRunner) FailOnExitCode() *CommandRunner {
r.enforceExitCodes = langext.Ptr([]int{0})
return r
}
func (r *CommandRunner) FailOnTimeout() *CommandRunner {
r.enforceNoTimeout = true
return r
}
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func (r *CommandRunner) FailOnStderr() *CommandRunner {
r.enforceNoStderr = true
return r
}
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func (r *CommandRunner) Listen(lstr CommandListener) *CommandRunner {
r.listener = append(r.listener, lstr)
return r
}
func (r *CommandRunner) ListenStdout(lstr func(string)) *CommandRunner {
r.listener = append(r.listener, genericCommandListener{_readStdoutLine: &lstr})
return r
}
func (r *CommandRunner) ListenStderr(lstr func(string)) *CommandRunner {
r.listener = append(r.listener, genericCommandListener{_readStderrLine: &lstr})
return r
}
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func (r *CommandRunner) Run() (CommandResult, error) {
return run(*r)
}