mirror of
https://github.com/antonmedv/fx
synced 2024-11-09 07:10:38 +00:00
47 lines
820 B
Go
47 lines
820 B
Go
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package reducer
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import (
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_ "embed"
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"fmt"
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"os/exec"
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)
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func CreatePython(bin string, args []string) *exec.Cmd {
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cmd := exec.Command(bin, "-c", GenerateCode(args))
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return cmd
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}
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//go:embed reduce.py
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var templatePython string
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func GenerateCodePython(args []string) string {
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rs := "\n"
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for i, a := range args {
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rs += "try:"
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switch {
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case a == ".":
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rs += `
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x = x
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`
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default:
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rs += fmt.Sprintf(
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`
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f = (lambda json: (%v))(x)
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x = f(x) if callable(f) else f
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`, a)
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}
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// Generate a beautiful error message.
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rs += "except Exception as e:\n"
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pre, post, pointer := trace(args, i)
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rs += fmt.Sprintf(
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` sys.stderr.write('\n {} {} {}\n %v\n\n{}\n'.format(%q, %q, %q, e))
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sys.exit(1)`,
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pointer,
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pre, a, post,
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)
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rs += "\n"
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}
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return fmt.Sprintf(templatePython, rs)
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}
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