58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
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package main
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import (
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"fmt"
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"log"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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)
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func NSISCompat() error {
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// check if no flags(args beginning with '-') were passed
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if len(os.Args) == 1 {
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return nil
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}
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for _, arg := range os.Args[1:] {
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if arg[0] == '-' {
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return nil
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}
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}
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var convertArgs = []string{}
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// check if any args beginning with /S or /D
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for _, arg := range os.Args[1:] {
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if strings.HasPrefix(arg, "/S") {
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log.Println("/S flag was passed, we're operating in NSIS installer compatibility mode")
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}
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if strings.HasPrefix(arg, "/D") {
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if len(arg) > 3 {
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return fmt.Errorf("/D flag was passed with a directory argument in NSIS compatibility mode")
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}
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log.Println("/D flag was passed, we're operating in NSIS installer compatibility mode")
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convertArgs = append(convertArgs, "--directory="+arg[2:])
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}
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}
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if len(convertArgs) == 0 {
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return nil
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}
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// if we're here, we're operating in NSIS compatibility mode
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// re-run ourselves with the converted args
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// start by getting the path to our executable
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exePath, err := os.Executable()
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if err != nil {
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return err
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}
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// forumulate our new command
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cmd := exec.Command(exePath, convertArgs...)
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// set the current working directory to the same as our executable
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cmd.Dir = filepath.Dir(exePath)
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// run the command
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err = cmd.Run()
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if err != nil {
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return err
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}
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// if we're here, we're done
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return nil
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}
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