cleaning up ENV handling

configureENV.go

@@ -7,6 +7,27 @@ import (
 	"go.wit.com/log"
 )
 
+// BEFORE YOU READ ANYTHING UNDERSTAND THIS IS THE DEFAULT:
+//
+// ~/.config/    # put things you might care about here
+// ~/.cache/     # this is never imporant and can be deleted at any time
+//
+//
+// Additionally:
+//
+//    NEVER WRITE OUT ANYTHING TO ~/   EVER. The ONLY DIRECTORIES YOU ARE EVER ALLOWED TO USE ARE ~/.config and ~/.cache/ (maybe ~/.local but really, why?)
+//
+// There are no exceptions to this unless you are a jerk or don't know better (in which you will be easily forgiven -- don't worry. there isn't a manual)
+//
+//
+// ADVICE FOR ALL FUTURE PROGRAMMERS:
+//
+//
+// Config files are a perfect way to stop things from proceeding. You do NOT want options in your programs. Configuration options, if you do
+// things correctly, should never actually be needed. Nonetheless, there are initial states. ISOLATE ALL OPTIONS TO THE ITIAL STATES.
+// then, never let anthing change anything. If your code is correct, then all is good.
+//
+//
 // This defines the "default" behavior for forge when doing GO lang development
 //
 // Since this code is common, it's in a seperate package so it can be used elsewhere
@@ -19,7 +40,7 @@ import (
 // This routine ensures the following ENV vars are set:
 //
 // FORGE_CONFIG == where forge's configs are stored (normally ~/.config/forge)
-// FORGE_REPOPB == where the repos.pb protobuf cache file is stored (normally ~/.cache/forge/repos.pb)
+// FORGE_REPOSPB == where the repos.pb protobuf cache file is stored (normally ~/.cache/forge/repos.pb)
 // FORGE_GOSRC  == based on the path, what the user probably want for developing in GO (Defaults to ~/go/src)
 // FORGE_GOWORK == true or false depending on the GOSRC result
 //
@@ -32,13 +53,15 @@ import (
 func ConfigureENV() error {
 	err := doConfigureENV()
 	if os.Getenv("FORGE_VERBOSE") == "true" {
-		log.Printf("FORGE_CONFIG   = %s\n", os.Getenv("FORGE_CONFIG"))
+		log.Printf("fhelp init: FORGE_CONFIG   = %s\n", os.Getenv("FORGE_CONFIG"))
-		log.Printf("FORGE_REPOPB   = %s\n", os.Getenv("FORGE_REPOPB"))
+		log.Printf("fhelp init: FORGE_REPOSDIR  = %s\n", os.Getenv("FORGE_REPOSDIR"))
-		log.Printf("FORGE_PATCHDIR = %s\n", os.Getenv("FORGE_PATCHDIR"))
+		log.Printf("fhelp init: FORGE_REPOSPB   = %s\n", os.Getenv("FORGE_REPOSPB"))
-		log.Printf("FORGE_URL      = %s\n", os.Getenv("FORGE_URL"))
+		log.Printf("fhelp init: FORGE_PATCHDIR = %s\n", os.Getenv("FORGE_PATCHDIR"))
-		log.Printf("FORGE_GOWORK   = %v\n", os.Getenv("FORGE_GOWORK"))
+		log.Printf("fhelp init: FORGE_URL      = %s\n", os.Getenv("FORGE_URL"))
-		log.Printf("FORGE_VERBOSE  = %s\n", os.Getenv("FORGE_VERBOSE"))
+		log.Printf("fhelp init: FORGE_GOWORK   = %v\n", os.Getenv("FORGE_GOWORK"))
-		log.Printf("HOSTNAME       = %s\n", os.Getenv("HOSTNAME"))
+		log.Printf("fhelp init: FORGE_VERBOSE  = %s\n", os.Getenv("FORGE_VERBOSE"))
+		log.Printf("fhelp init: HOSTNAME       = %s\n", os.Getenv("HOSTNAME"))
+		os.Exit(-1)
 	}
 	return err
 }
@@ -47,9 +70,12 @@ func ConfigureENV() error {
 // always set them to _something_ even when everything seems to be failing
 func doConfigureENV() error {
 	var anyerr error
+	if os.Getenv("FORGE_CONFIG") != "" {
+		return nil
+	}
 	// setup the forge config dir
 	if os.Getenv("FORGE_CONFIG") == "" {
-		homeDir, err := os.UserHomeDir()
+		homeDir, err := getConfigDir()
 		if err == nil {
 			fullpath := filepath.Join(homeDir, ".config/forge")
 			os.MkdirAll(fullpath, os.ModePerm)
@@ -61,6 +87,26 @@ func doConfigureENV() error {
 		}
 	}
 
+	if os.Getenv("FORGE_REPOSDIR") == "" {
+		reposDir, err := getReposDir()
+		if err != nil {
+			return err
+		}
+		os.Setenv("FORGE_REPOSDIR", reposDir)
+	}
+
+	if os.Getenv("FORGE_REPOSPB") == "" {
+		pbdir, err := getCacheDir()
+		if err != nil {
+			return err
+		}
+		os.Setenv("FORGE_REPOSPB", filepath.Join(pbdir, "repos.pb"))
+	}
+
+	if os.Getenv("FORGE_PATCHDIR") == "" {
+		os.Setenv("FORGE_PATCHDIR", os.Getenv("FORGE_REPOSDIR"))
+	}
+
 	// setting FORGE_URL
 	if os.Getenv("FORGE_URL") == "" {
 		os.Setenv("FORGE_URL", "https://forge.wit.com/")
@@ -77,6 +123,62 @@ func doConfigureENV() error {
 	return anyerr
 }
 
+func getConfigDir() (string, error) {
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		return "/tmp", err
+	}
+	fullpath := filepath.Join(homeDir, ".config/forge")
+	err = os.MkdirAll(fullpath, os.ModePerm)
+	if err != nil {
+		return "/tmp", err
+	}
+
+	return fullpath, nil
+}
+
+func getCacheDir() (string, error) {
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		return "/tmp", err
+	}
+	fullpath := filepath.Join(homeDir, ".cache/forge")
+	err = os.MkdirAll(fullpath, os.ModePerm)
+	if err != nil {
+		return "/tmp", err
+	}
+
+	return fullpath, nil
+}
+
+func getReposDir() (string, error) {
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		return "/tmp", err
+	}
+	fullpath := filepath.Join(homeDir, "go/src")
+	err = os.MkdirAll(fullpath, os.ModePerm)
+	if err != nil {
+		return "/tmp", err
+	}
+
+	return fullpath, nil
+}
+
+func getCachegDir() (string, error) {
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		return "/tmp", err
+	}
+	fullpath := filepath.Join(homeDir, ".cache/forge")
+	err = os.MkdirAll(fullpath, os.ModePerm)
+	if err != nil {
+		return "/tmp", err
+	}
+
+	return fullpath, nil
+}
+
 // this is the 'old way" and works fine for me. I use it because I like the ~/go/src directory
 // because I know exactly what is in it: GO stuff & nothing else
 func useGoSrc() (string, error) {