3afb56a5e5
I'd like to be able to just call `run file.py` and have a program DWIM. I'm working on run as a step in this direction. Define a simple configuration that maps file extensions to template strings where "$file" is replaced with the argv[1]. It basically works but there are outstanding TODOs. See the README and source code for more information.
49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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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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"utils"
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)
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func main() {
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if len(os.Args) != 2 {
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log.Fatal("You can only call run with a single file at a time.")
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}
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rulesPath := utils.Resolve("run.json", []string{"/home/wpcarro/.config/run/run.json"})
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b, err := ioutil.ReadFile(rulesPath)
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if err != nil {
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log.Fatal("Could not locate a run.json file: ", err)
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}
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rules := map[string]string{}
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err = json.Unmarshal(b, &rules)
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if err != nil {
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log.Fatal("Could not decode run.json as JSON: ", err)
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}
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fileName := os.Args[1]
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ext := filepath.Ext(fileName)
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cmd, ok := rules[ext]
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if !ok {
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log.Fatalf("No rules for extension, %s, have been defined.", ext)
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}
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// TODO(wpcarro): Support more sophisticated parsing than just string
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// splitting. To handle 'cases like this'.
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tokens := strings.Split(strings.Replace(cmd, "$file", fileName, 1), " ")
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c := exec.Command(tokens[0], tokens[1:]...)
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err = c.Start()
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// TODO(wpcarro): Forward STDERR and STDOUT.
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if err != nil {
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log.Fatal(err)
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}
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fmt.Println(c.Wait())
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}
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