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31 lines
774 B
Go
31 lines
774 B
Go
package helpers
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import (
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"strings"
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"github.com/aymerick/raymond"
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"github.com/zk-org/zk/internal/util"
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"github.com/zk-org/zk/internal/util/exec"
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)
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// RegisterShell registers the {{sh}} template helper, which runs shell commands.
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//
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// {{#sh "tr '[a-z]' '[A-Z]'"}}Hello, world!{{/sh}} -> HELLO, WORLD!
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// {{sh "echo 'Hello, world!'"}} -> Hello, world!
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func RegisterShell(logger util.Logger) {
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raymond.RegisterHelper("sh", func(arg string, options *raymond.Options) string {
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cmd := exec.CommandFromString(arg)
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// Feed any block content as piped input
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cmd.Stdin = strings.NewReader(options.Fn())
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output, err := cmd.Output()
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if err != nil {
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logger.Printf("{{sh}} command failed: %v", err)
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return ""
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}
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return strings.TrimSpace(string(output))
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})
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}
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