mirror of https://github.com/gohugoio/hugo.git
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
package internal
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import (
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"bytes"
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"os/exec"
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"strings"
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"github.com/gohugoio/hugo/markup/converter"
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)
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func ExternallyRenderContent(
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cfg converter.ProviderConfig,
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ctx converter.DocumentContext,
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content []byte, path string, args []string) []byte {
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logger := cfg.Logger
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cmd := exec.Command(path, args...)
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cmd.Stdin = bytes.NewReader(content)
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var out, cmderr bytes.Buffer
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cmd.Stdout = &out
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cmd.Stderr = &cmderr
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err := cmd.Run()
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// Most external helpers exit w/ non-zero exit code only if severe, i.e.
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// halting errors occurred. -> log stderr output regardless of state of err
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for _, item := range strings.Split(cmderr.String(), "\n") {
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item := strings.TrimSpace(item)
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if item != "" {
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logger.ERROR.Printf("%s: %s", ctx.DocumentName, item)
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}
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}
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if err != nil {
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logger.ERROR.Printf("%s rendering %s: %v", path, ctx.DocumentName, err)
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}
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return normalizeExternalHelperLineFeeds(out.Bytes())
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}
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// Strips carriage returns from third-party / external processes (useful for Windows)
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func normalizeExternalHelperLineFeeds(content []byte) []byte {
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return bytes.Replace(content, []byte("\r"), []byte(""), -1)
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}
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func GetPythonExecPath() string {
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path, err := exec.LookPath("python")
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if err != nil {
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path, err = exec.LookPath("python.exe")
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if err != nil {
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return ""
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}
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}
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return path
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}
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