use liner instead of linenoise

Makefile

@@ -14,10 +14,10 @@ export GO_BUILD_TAGS
 all: build  
 
 build:
-	$(GO) install -tags 'linenoise $(GO_BUILD_TAGS)' ./...
+	$(GO) install -tags '$(GO_BUILD_TAGS)' ./...
 
 build_lmdb:
-	$(GO) install -tags 'linenoise $(GO_BUILD_TAGS) lmdb' ./...	
+	$(GO) install -tags '$(GO_BUILD_TAGS) lmdb' ./...	
 	
 test:
 	$(GO) test --race -tags '$(GO_BUILD_TAGS)' ./...

cmd/ledis-cli/complietion.go

@@ -1,16 +0,0 @@
-package main
-
-// CompletionHandler provides possible completions for given input
-type CompletionHandler func(input string) []string
-
-// DefaultCompletionHandler simply returns an empty slice.
-var DefaultCompletionHandler = func(input string) []string {
-	return make([]string, 0)
-}
-
-var complHandler = DefaultCompletionHandler
-
-// SetCompletionHandler sets the CompletionHandler to be used for completion
-func SetCompletionHandler(c CompletionHandler) {
-	complHandler = c
-}

cmd/ledis-cli/go.linenoise_LICENSE

@@ -1,22 +0,0 @@
-Copyright (c) 2013, Geert-Johan Riemer
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this
-   list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright notice,
-   this list of conditions and the following disclaimer in the documentation
-   and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cmd/ledis-cli/linenoise.go

@@ -1,76 +0,0 @@
-// +build linenoise
-
-package main
-
-//#include <stdlib.h>
-//#include "linenoise.h"
-//#include "linenoiseCompletionCallbackHook.h"
-import "C"
-
-import (
-	"errors"
-	"unsafe"
-)
-
-func init() {
-	C.linenoiseSetupCompletionCallbackHook()
-}
-
-func line(prompt string) (string, error) {
-	promptCString := C.CString(prompt)
-	resultCString := C.linenoise(promptCString)
-	C.free(unsafe.Pointer(promptCString))
-	defer C.free(unsafe.Pointer(resultCString))
-
-	if resultCString == nil {
-		return "", errors.New("exiting due to signal")
-	}
-
-	result := C.GoString(resultCString)
-
-	return result, nil
-}
-
-func addHistory(line string) error {
-	lineCString := C.CString(line)
-	res := C.linenoiseHistoryAdd(lineCString)
-	C.free(unsafe.Pointer(lineCString))
-	if res != 1 {
-		return errors.New("Could not add line to history.")
-	}
-	return nil
-}
-
-func setHistoryCapacity(capacity int) error {
-	res := C.linenoiseHistorySetMaxLen(C.int(capacity))
-	if res != 1 {
-		return errors.New("Could not set history max len.")
-	}
-	return nil
-}
-
-// typedef struct linenoiseCompletions {
-//   size_t len;
-//   char **cvec;
-// } linenoiseCompletions;
-// typedef void(linenoiseCompletionCallback)(const char *, linenoiseCompletions *);
-// void linenoiseSetCompletionCallback(linenoiseCompletionCallback *);
-// void linenoiseAddCompletion(linenoiseCompletions *, char *);
-
-//export linenoiseGoCompletionCallbackHook
-func linenoiseGoCompletionCallbackHook(input *C.char, completions *C.linenoiseCompletions) {
-	completionsSlice := complHandler(C.GoString(input))
-
-	completionsLen := len(completionsSlice)
-	completions.len = C.size_t(completionsLen)
-
-	if completionsLen > 0 {
-		cvec := C.malloc(C.size_t(int(unsafe.Sizeof(*(**C.char)(nil))) * completionsLen))
-		cvecSlice := (*(*[999999]*C.char)(cvec))[:completionsLen]
-
-		for i, str := range completionsSlice {
-			cvecSlice[i] = C.CString(str)
-		}
-		completions.cvec = (**C.char)(cvec)
-	}
-}

cmd/ledis-cli/linenoise.h

@@ -1,68 +0,0 @@
-// +build linenoise
-
-/* linenoise.h -- guerrilla line editing library against the idea that a
- * line editing lib needs to be 20,000 lines of C code.
- *
- * See linenoise.c for more information.
- *
- * ------------------------------------------------------------------------
- *
- * Copyright (c) 2010, Salvatore Sanfilippo <antirez at gmail dot com>
- * Copyright (c) 2010, Pieter Noordhuis <pcnoordhuis at gmail dot com>
- *
- * All rights reserved.
- * 
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * 
- *  *  Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *
- *  *  Redistributions in binary form must reproduce the above copyright
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- * 
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef __LINENOISE_H
-#define __LINENOISE_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct linenoiseCompletions {
-  size_t len;
-  char **cvec;
-} linenoiseCompletions;
-
-typedef void(linenoiseCompletionCallback)(const char *, linenoiseCompletions *);
-void linenoiseSetCompletionCallback(linenoiseCompletionCallback *);
-void linenoiseAddCompletion(linenoiseCompletions *, const char *);
-
-char *linenoise(const char *prompt);
-int linenoiseHistoryAdd(const char *line);
-int linenoiseHistorySetMaxLen(int len);
-int linenoiseHistorySave(const char *filename);
-int linenoiseHistoryLoad(const char *filename);
-void linenoiseClearScreen(void);
-void linenoiseSetMultiLine(int ml);
-void linenoisePrintKeyCodes(void);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __LINENOISE_H */

cmd/ledis-cli/linenoiseCompletionCallbackHook.c

@@ -1,9 +0,0 @@
-// +build linenoise
-
-#include "linenoiseCompletionCallbackHook.h"
-
-extern void linenoiseGoCompletionCallbackHook(const char *, linenoiseCompletions *);
-
-void linenoiseSetupCompletionCallbackHook() {
-	linenoiseSetCompletionCallback(linenoiseGoCompletionCallbackHook);
-}

cmd/ledis-cli/linenoiseCompletionCallbackHook.h

@@ -1,6 +0,0 @@
-// +build linenoise
-
-#include <stdlib.h>
-#include "linenoise.h"
-
-void linenoiseSetupCompletionCallbackHook();

cmd/ledis-cli/main.go

@@ -1,14 +1,14 @@
-// +build linenoise
-
 package main
 
 import (
 	"flag"
 	"fmt"
+	"os"
 	"regexp"
 	"strconv"
 	"strings"
 
+	"github.com/peterh/liner"
 	"github.com/siddontang/goredis"
 )
 
@@ -17,9 +17,24 @@ var port = flag.Int("p", 6380, "ledisdb server port (default 6380)")
 var socket = flag.String("s", "", "ledisdb server socket, overwrite ip and port")
 var dbn = flag.Int("n", 0, "ledisdb database number(default 0)")
 
+var (
+	line        *liner.State
+	historyPath = "/tmp/ledis-cli"
+)
+
 func main() {
 	flag.Parse()
 
+	line = liner.NewLiner()
+	defer line.Close()
+
+	line.SetCtrlCAborts(true)
+
+	setCompletionHandler()
+	loadHisotry()
+
+	defer saveHisotry()
+
 	var addr string
 	if len(*socket) > 0 {
 		addr = *socket
@@ -31,9 +46,6 @@ func main() {
 	c.SetMaxIdleConns(1)
 	sendSelect(c, *dbn)
 
-	SetCompletionHandler(completionHandler)
-	setHistoryCapacity(100)
-
 	reg, _ := regexp.Compile(`'.*?'|".*?"|\S+`)
 
 	prompt := ""
@@ -45,7 +57,7 @@ func main() {
 			prompt = fmt.Sprintf("%s> ", addr)
 		}
 
-		cmd, err := line(prompt)
+		cmd, err := line.Prompt(prompt)
 		if err != nil {
 			fmt.Printf("%s\n", err.Error())
 			return
@@ -55,7 +67,7 @@ func main() {
 		if len(cmds) == 0 {
 			continue
 		} else {
-			addHistory(cmd)
+			line.AppendHistory(cmd)
 
 			args := make([]interface{}, len(cmds[1:]))
 
@@ -167,12 +179,29 @@ func sendSelect(client *goredis.Client, index int) {
 	}
 }
 
-func completionHandler(in string) []string {
+func setCompletionHandler() {
-	var keyWords []string
+	line.SetCompleter(func(line string) (c []string) {
 		for _, i := range helpCommands {
-		if strings.HasPrefix(i[0], strings.ToUpper(in)) {
+			if strings.HasPrefix(i[0], strings.ToLower(line)) {
-			keyWords = append(keyWords, i[0])
+				c = append(c, i[0])
 			}
 		}
-	return keyWords
+		return
+	})
+}
+
+func loadHisotry() {
+	if f, err := os.Open(historyPath); err == nil {
+		line.ReadHistory(f)
+		f.Close()
+	}
+}
+
+func saveHisotry() {
+	if f, err := os.Create(historyPath); err != nil {
+		fmt.Printf("Error writing history file: ", err)
+	} else {
+		line.WriteHistory(f)
+		f.Close()
+	}
 }

cmd/ledis-cli/nolinenoise.go

@@ -1,7 +0,0 @@
-// +build !linenoise
-
-package main
-
-func main() {
-	println("Please use linenoise to build again, or use redis-cli instead")
-}