added shell tab complete

cmd/shs.go

@@ -20,10 +20,12 @@ package main
 import (
     "os"
     "fmt"
+    "strings"
     "strconv"
     "github.com/peterh/liner"
     "gitlab.com/whom/shs/ast"
     "gitlab.com/whom/shs/log"
+    "gitlab.com/whom/shs/util"
     "gitlab.com/whom/shs/config"
 )
 
@@ -105,6 +107,10 @@ func main() {
     defer line.Close()
 
     line.SetCtrlCAborts(true)
+    line.SetCompleter(func(line string) (c []string) {
+        strtoks := strings.Split(line, " ")
+        return util.ShellCompleter(strtoks[len(strtoks) - 1], vars, funcs)
+    })
 
     var histFile *os.File
     var err error
@@ -134,12 +140,10 @@ func main() {
         text, err := line.Prompt(prompt)
         if err != nil && err != liner.ErrPromptAborted{
             log.Log(log.ERR, "couldnt read user input: " + err.Error(), "repl")
+            continue
         }
 
-        if !no_hist {
-            line.WriteHistory(histFile)
-        }
-
+        line.AppendHistory(text)
         userInput := ast.Lex(text)
         if userInput == nil {
             // errors handled in Lex