Require configs and chains in ICTEST_HOME

local-interchain/README.md

@@ -23,7 +23,9 @@ Follow [this guide](./docs/WINDOWS.md) to setup the Windows OS environment for i
 - *(optional)* Edit `./configs/relayer.json`
 - Copy: `cp ./configs/base_ibc.json ./configs/mytest1_ignored.json`
 - Run: `local-ic start mytest1_ignored.json`
-- Change directory `ICTEST_HOME=/root/example/local-interchain local-ic start myother_ignored.json`
+- Run in different directory: `ICTEST_HOME=/root/local-interchain local-ic start myother_ignored.json`
+
+**NOTE** The ICTEST_HOME path must contain the directories `chains` and `configs` to be valid.
 
 *(Default: `make install` links to the cloned directory. `go install .` will use your home directory /local-interchain)*
 

local-interchain/cmd/local-ic/root.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"log"
 	"os"
 	"path"
@@ -29,7 +30,6 @@ func GetDirectory() string {
 	// Config variable override for the ICTEST_HOME
 	if res := os.Getenv("ICTEST_HOME"); res != "" {
 		MakeFileInstallDirectory = res
-		return res
 	}
 
 	if MakeFileInstallDirectory == "" {
@@ -41,5 +41,19 @@ func GetDirectory() string {
 		MakeFileInstallDirectory = path.Join(dirname, "local-interchain")
 	}
 
+	if err := directoryRequirementChecks(MakeFileInstallDirectory, "configs", "chains"); err != nil {
+		log.Fatal(err)
+	}
+
 	return MakeFileInstallDirectory
 }
+
+func directoryRequirementChecks(parent string, subDirectories ...string) error {
+	for _, subDirectory := range subDirectories {
+		if _, err := os.Stat(path.Join(parent, subDirectory)); os.IsNotExist(err) {
+			return fmt.Errorf("%s/ folder not found in %s", subDirectory, parent)
+		}
+	}
+
+	return nil
+}

local-interchain/cmd/local-ic/start_chain.go

@@ -17,9 +17,6 @@ var startCmd = &cobra.Command{
 		configPath := args[0]
 		parentDir := GetDirectory()
 
-		// base.json
-		// /abs/path/here/base.json
-
 		if path.IsAbs(configPath) {
 			dir, err := filepath.Abs(configPath)
 			if err != nil {