add environment variable support

Dockerfile

@@ -1,8 +1,11 @@
 # Use Alpine as the base image
 FROM golang:alpine
 
+# Install isotope
+FROM ugric/isotope:latest
+
 # Set the Current Working Directory inside the container
-WORKDIR /app
+WORKDIR /argon
 
 # Copy go mod and sum files
 COPY go.mod go.sum ./
@@ -11,7 +14,7 @@ COPY go.mod go.sum ./
 RUN go mod download
 
 # Copy the source from the current directory to the Working Directory inside the container
-COPY . .
+COPY ./src ./src
 
 # Build the Go app
 RUN go build -trimpath -ldflags="-s -w" -o bin/argon ./src
@@ -20,4 +23,4 @@ RUN go build -trimpath -ldflags="-s -w" -o bin/argon ./src
 RUN chmod +x bin/argon
 
 # add the binary to the path
-ENV PATH="/app/bin:${PATH}"
+ENV PATH="/argon/bin:${PATH}"

go.mod

@@ -7,6 +7,8 @@ require (
 	github.com/wadey/go-rounding v1.1.0
 )
 
+require github.com/joho/godotenv v1.5.1 // indirect
+
 require (
 	github.com/gabriel-vasile/mimetype v1.4.2
 	golang.org/x/net v0.8.0 // indirect

go.sum

@@ -2,6 +2,8 @@ github.com/fatih/color v1.14.1 h1:qfhVLaG5s+nCROl1zJsZRxFeYrHLqWroPOQ8BWiNb4w=
 github.com/fatih/color v1.14.1/go.mod h1:2oHN61fhTpgcxD3TSWCgKDiH1+x4OiDVVGH8WlgGZGg=
 github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
 github.com/gabriel-vasile/mimetype v1.4.2/go.mod h1:zApsH/mKG4w07erKIaJPFiX0Tsq9BFQgN3qGY5GnNgA=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/jwalton/go-supportscolor v1.1.0 h1:HsXFJdMPjRUAx8cIW6g30hVSFYaxh9yRQwEWgkAR7lQ=
 github.com/jwalton/go-supportscolor v1.1.0/go.mod h1:hFVUAZV2cWg+WFFC4v8pT2X/S2qUUBYMioBD9AINXGs=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=

src/built-ins.go

@@ -8,6 +8,7 @@ import (
 func makeGlobal() ArObject {
 	var vars = anymap{}
 	vars["global"] = vars
+	vars["env"] = env
 	vars["term"] = ArTerm
 	vars["ArgonVersion"] = ArString(VERSION)
 	vars["number"] = builtinFunc{"number", ArgonNumber}

src/env.go

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/joho/godotenv"
+)
+
+// get the environment variables
+func getEnv() ArObject {
+	env := make(anymap)
+	for _, e := range os.Environ() {
+		pair := strings.Split(e, "=")
+		env[pair[0]] = ArString(pair[1])
+	}
+	cwd, err := os.Getwd()
+	if err == nil {
+		envfile := filepath.Join(cwd, ".env")
+		err := godotenv.Load(envfile)
+		if err == nil {
+			values, err := godotenv.Read()
+			if err == nil {
+				for k, v := range values {
+					env[k] = ArString(v)
+				}
+			}
+		}
+	}
+	return Map(env)
+}
+
+var env = getEnv()