Set PACKER_CONFIG for global config path

This commit is contained in:
Mitchell Hashimoto 2013-05-08 20:56:44 -07:00
parent cd5cecfe89
commit 32ec0adbb0
1 changed files with 51 additions and 1 deletions

View File

@ -8,9 +8,48 @@ import (
"io/ioutil"
"log"
"os"
"os/user"
"path"
"runtime"
)
func loadGlobalConfig() (result *config, err error) {
mustExist := true
p := os.Getenv("PACKER_CONFIG")
if p == "" {
var u *user.User
u, err = user.Current()
if err != nil {
return
}
p = path.Join(u.HomeDir, ".packerrc")
mustExist = false
}
log.Printf("Loading packer config: %s\n", p)
contents, err := ioutil.ReadFile(p)
if err != nil && !mustExist {
// Don't report an error if it is okay if the file is missing
perr, ok := err.(*os.PathError)
if ok && perr.Op == "open" {
log.Printf("Packer config didn't exist. Ignoring: %s\n", p)
err = nil
}
}
if err != nil {
return
}
result, err = parseConfig(string(contents))
if err != nil {
return
}
return
}
func main() {
if os.Getenv("PACKER_LOG") == "" {
// If we don't have logging explicitly enabled, then disable it
@ -27,12 +66,23 @@ func main() {
defer plugin.CleanupClients()
config, err := parseConfig(defaultConfig)
homeConfig, err := loadGlobalConfig()
if err != nil {
fmt.Fprintf(os.Stderr, "Error loading global Packer configuration: \n\n%s\n", err)
os.Exit(1)
}
config, err := parseConfig(defaultConfig)
if err != nil {
fmt.Fprintf(os.Stderr, "Error parsing global Packer configuration: \n\n%s\n", err)
os.Exit(1)
}
if homeConfig != nil {
log.Println("Merging default config with home config...")
config = mergeConfig(config, homeConfig)
}
envConfig := packer.DefaultEnvironmentConfig()
envConfig.Commands = config.CommandNames()
envConfig.CommandFunc = config.LoadCommand