Make WASM compatible by not including ssh/terminal for JS builds

golog.go

@@ -1,11 +1,8 @@
 package log
 
 import (
-	"os"
 	"sync"
 	"text/template"
-
-	"golang.org/x/crypto/ssh/terminal"
 )
 
 // An internal map of named loggers. This allows for GetLogger() to be called
@@ -14,16 +11,10 @@ import (
 var (
 	loggers     map[string]*Logger
 	loggerMutex sync.Mutex
-
-	interactive bool // is an interactive shell
 )
 
 func init() {
 	loggers = map[string]*Logger{}
-
-	// Detect if we're running in an interactive shell, so we can globally
-	// disable colors when redirecting to a log file.
-	interactive = terminal.IsTerminal(int(os.Stdout.Fd()))
 }
 
 // Logger stores the configuration for a named logger instance.

terminal.go

@@ -0,0 +1,18 @@
+// +build !js
+
+package log
+
+import (
+	"os"
+
+	"golang.org/x/crypto/ssh/terminal"
+)
+
+// Terminal module determines if an interactive shell is in use. If
+// not interactive, disable colors by default. This is so deployed web apps
+// log their output in plain text.
+var interactive = false
+
+func init() {
+	interactive = terminal.IsTerminal(int(os.Stdout.Fd()))
+}

terminal_js.go

@@ -0,0 +1,6 @@
+// +build js,wasm
+package log
+
+// WASM builds don't have a terminal to query so interactive=false for plain
+// text logs to the browser console.
+var interactive = false