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main.go
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main.go
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package main
import (
"bytes"
"fmt"
"io/ioutil"
"log"
"os"
"os/exec"
"strings"
)
const filePrefix = "provider_cmd_"
const fileSuffix = ".go"
const packageCmdPath = "cmd"
func main() {
provider := os.Args[1]
log.Println("Build terraformer with " + provider + " provider...")
files, err := ioutil.ReadDir(packageCmdPath)
if err != nil {
log.Println(err)
}
deletedProvider := []string{}
for _, f := range files {
if strings.HasPrefix(f.Name(), filePrefix) {
if !strings.HasPrefix(f.Name(), filePrefix+provider+fileSuffix) {
providerName := strings.ReplaceAll(f.Name(), filePrefix, "")
providerName = strings.ReplaceAll(providerName, fileSuffix, "")
deletedProvider = append(deletedProvider, providerName)
}
}
}
// move files for deleted providers
err = os.MkdirAll(packageCmdPath+"/tmp", os.ModePerm)
if err != nil {
log.Println(err)
}
for _, provider := range deletedProvider {
err := os.Rename(packageCmdPath+"/"+filePrefix+provider+fileSuffix, packageCmdPath+"/tmp/"+filePrefix+provider+fileSuffix)
if err != nil {
log.Println(err)
}
}
// comment deleted providers in code
rootCode, err := ioutil.ReadFile(packageCmdPath + "/root.go")
if err != nil {
log.Println(err)
}
lines := strings.Split(string(rootCode), "\n")
newRootCodeLines := make([]string, len(lines))
for i, line := range lines {
for _, provider := range deletedProvider {
if strings.Contains(strings.ToLower(line), "newcmd"+provider+"importer") {
line = "// " + line
}
if strings.Contains(strings.ToLower(line), "new"+provider+"provider") {
line = "// " + line
}
}
newRootCodeLines[i] = line
}
newRootCode := strings.Join(newRootCodeLines, "\n")
err = ioutil.WriteFile(packageCmdPath+"/root.go", []byte(newRootCode), os.ModePerm)
if err != nil {
log.Println(err)
}
// build....
cmd := exec.Command("go", "build", "-o", "terraformer-"+provider)
var outb, errb bytes.Buffer
cmd.Stdout = &outb
cmd.Stderr = &errb
err = cmd.Run()
if err != nil {
log.Fatal("err:", errb.String())
}
fmt.Println(outb.String())
// revert code and files
err = ioutil.WriteFile(packageCmdPath+"/root.go", rootCode, os.ModePerm)
if err != nil {
log.Println(err)
}
for _, provider := range deletedProvider {
err := os.Rename(packageCmdPath+"/tmp/"+filePrefix+provider+fileSuffix, "cmd/"+filePrefix+provider+fileSuffix)
if err != nil {
log.Println(err)
}
}
}