honour CLIPBOARD_STATE if we ever receive it

Author: sentriz

cliphist.go

@@ -52,6 +52,12 @@ func main_() int {
 	var err error
 	switch flags.Arg(0) {
 	case "store":
+		// from man wl-clipboard
+		switch os.Getenv("CLIPBOARD_STATE") {
+		case "sensitive":
+			return 0
+		}
+
 		err = store(os.Stdin, *maxDedupeSearch, *maxItems)
 	case "list":
 		err = list(os.Stdout)

testdata/clipboard-state-env.txtar

@@ -0,0 +1,19 @@
+env CLIPBOARD_STATE=data
+exec rand 8
+stdin stdout
+exec cliphist store
+
+# check 1 item with CLIPBOARD_STATE=data
+exec cliphist list
+stdout -count=1 '^.'
+
+cliphist wipe
+
+env CLIPBOARD_STATE=sensitive
+exec rand 8
+stdin stdout
+exec cliphist store
+
+# check 0 items with CLIPBOARD_STATE=sensitive
+exec cliphist list
+! stdout .