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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import "strings"
var cmdRun = &Command{
UsageLine: "run [-a] [-n] [-x] gofiles... [arguments...]",
Short: "compile and run Go program",
Long: `
Run compiles and runs the main package comprising the named Go source files.
The -a flag forces reinstallation of packages that are already up-to-date.
The -n flag prints the commands but does not run them.
The -x flag prints the commands.
See also: go build.
`,
}
func init() {
cmdRun.Run = runRun // break init loop
cmdRun.Flag.BoolVar(&buildA, "a", false, "")
cmdRun.Flag.BoolVar(&buildN, "n", false, "")
cmdRun.Flag.BoolVar(&buildX, "x", false, "")
}
func runRun(cmd *Command, args []string) {
var b builder
b.init()
i := 0
for i < len(args) && strings.HasSuffix(args[i], ".go") {
i++
}
files, cmdArgs := args[:i], args[i:]
p := goFilesPackage(files, "")
p.target = "" // must build - not up to date
a1 := b.action(modeBuild, modeBuild, p)
a := &action{f: (*builder).runProgram, args: cmdArgs, deps: []*action{a1}}
b.do(a)
}
// runProgram is the action for running a binary that has already
// been compiled. We ignore exit status.
func (b *builder) runProgram(a *action) error {
if buildN || buildX {
b.showcmd("", "%s %s", a.deps[0].target, strings.Join(a.args, " "))
if buildN {
return nil
}
}
run(a.deps[0].target, a.args)
return nil
}
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