Merge d47d23ea3e4317734a911441d77c7799be08e10b into 0e4b95d9b9945028b0d957797c2855de070c8033

main.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"os/exec"
 	"os/user"
 	"path/filepath"
 	"runtime"
@@ -115,7 +116,13 @@ func main() {
 
 	// Set $SHELL if the user wants to
 	if *setshflag {
-		os.Setenv("SHELL", os.Args[0])
+		os.Setenv("SHELL", "hilbish")
+
+		path, err := exec.LookPath("hilbish")
+		if err == nil {
+			os.Setenv("SHELL", path)
+		}
+
 	}
 
 	lr = newLineReader("", false)

readline/history.go

@@ -128,15 +128,19 @@ func (rl *Instance) walkHistory(i int) {
 	}
 
 	rl.histOffset += i
+	historyLen := history.Len()
 	if rl.histOffset == 0 {
 		rl.line = []rune(rl.lineBuf)
 		rl.pos = len(rl.lineBuf)
 	} else if rl.histOffset <= -1 {
 		rl.histOffset = 0
+	} else if rl.histOffset > historyLen {
+		// TODO: should this wrap around?s
+		rl.histOffset = 0
 	} else {
 		dedup = true
 		old = string(rl.line)
-		new, err = history.GetLine(history.Len() - rl.histOffset)
+		new, err = history.GetLine(historyLen - rl.histOffset)
 		if err != nil {
 			rl.resetHelpers()
 			print("\r\n" + err.Error() + "\r\n")