mirror of https://github.com/markbates/pkger.git
40 lines
541 B
Go
40 lines
541 B
Go
package here
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import (
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"bytes"
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"os"
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"os/exec"
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"sync"
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)
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var cache = &infoMap{
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data: &sync.Map{},
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}
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func run(n string, args ...string) ([]byte, error) {
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c := exec.Command(n, args...)
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bb := &bytes.Buffer{}
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c.Stdout = bb
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c.Stderr = os.Stderr
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err := c.Run()
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if err != nil {
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return nil, err
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}
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return bb.Bytes(), nil
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}
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func Cache(p string, fn func(string) (Info, error)) (Info, error) {
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i, ok := cache.Load(p)
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if ok {
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return i, nil
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}
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i, err := fn(p)
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if err != nil {
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return i, err
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}
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cache.Store(p, i)
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return i, nil
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}
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