luzifer/gen-dockerfile
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Add parameter to write Dockerfile directly

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Signed-off-by: Knut Ahlers <knut@ahlers.me>
This commit is contained in:
Knut Ahlers 2019-09-12 07:17:22 +02:00
parent 599bb8caf3
commit 88792c4bda
Signed by: luzifer
GPG key ID: DC2729FDD34BE99E
1 changed files with 13 additions and 1 deletions
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14
main.go
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@ -3,6 +3,7 @@ package main
import ( import (
"bytes" "bytes"
"fmt" "fmt"
"io"
"os" "os"
"os/exec" "os/exec"
"regexp" "regexp"
@ -23,6 +24,7 @@ var (
Timezone string `flag:"timezone,t" default:"" description:"Set timezone in Dockerfile (format 'Europe/Berlin')"` Timezone string `flag:"timezone,t" default:"" description:"Set timezone in Dockerfile (format 'Europe/Berlin')"`
VersionAndExit bool `flag:"version" default:"false" description:"Prints current version and exits"` VersionAndExit bool `flag:"version" default:"false" description:"Prints current version and exits"`
Volumes []string `flag:"volume,v" default:"" description:"Volumes to create mount points for (format '/data')"` Volumes []string `flag:"volume,v" default:"" description:"Volumes to create mount points for (format '/data')"`
Write bool `flag:"write,w" default:"false" description:"Directly write into Dockerfile"`
}{} }{}
version = "dev" version = "dev"
@ -86,7 +88,17 @@ func main() {
log.WithError(err).Fatalf("Could not render template %q", tplPath) log.WithError(err).Fatalf("Could not render template %q", tplPath)
} }
fmt.Println(strings.TrimSpace(regexp.MustCompile(`\n{3,}`).ReplaceAllString(buf.String(), "\n\n"))) var output io.Writer = os.Stdout
if cfg.Write {
f, err := os.Create("Dockerfile")
if err != nil {
log.WithError(err).Fatal("Could not open Dockerfile for writing")
}
defer f.Close()
output = f
}
fmt.Fprintln(output, strings.TrimSpace(regexp.MustCompile(`\n{3,}`).ReplaceAllString(buf.String(), "\n\n")))
} }
func getPackage() (string, error) { func getPackage() (string, error) {