Kowl

Kowl is one watcher of files that (thank to fsnotify ) , it trigger scripts js (thank to OttoJs).

Dependencies

go get -u github.com/robertkrimen/otto
go get -u github.com/fsnotify/fsnotify
go get -u gopkg.in/h2non/gentleman.v2
go get -u github.com/jessevdk/go-flags

Run

Example 1

./kowl -f /tmp/foo -j example.js

Example 2

./kowl -f /tmp/foo -j example.js -w

Help

./kowl -h
Usage:
  kowl [OPTIONS]

Application Options:
  -f, --filename=       filename that wants to be observed
  -j, --javascript=     Js that wants that executes the actions
  -m, --millisecond=    Millisecond change check defaul 1000 (default: 1000)
  -w, --flagNotWatcher  Watcher disable

Help Options:
  -h, --help            Show this help message

Script JS

function not_found(name, op, args) {
    console.log(name + " - " + op + " - " + args, kNow())
}

function ticker(name, op, args, t) {
    console.log(name + " - " + op + " - " + args, kNow())
}

function exist(name, op, args) {
    console.log(name + " - " + op + " - " + args, kNow())
}

function write(name, op, args) {
    console.log(name + " - " + op + " - " + args, kNow())
}

function create(name, op, args) {
    console.log(name + " - " + op + " - " + args, kNow())
}

function remove(name, op, args) {
    console.log(name + " - " + op + " - " + args, kNow())
}

function rename(name, op, args) {
    console.log(name + " - " + op + " - " + args, kNow())

}

function chmod(name, op, args) {
    console.log(name + " - " + op + " - " + args, kNow())
}

Functions

kExec

func kExec(name string, arg ...string) (string,string, int)

out = kExec("ls","-l")
stdout = out[0]  
stderr = out[1]
err = out[3] 

other example:

out = kExec("curl","www.google.com")
console.log(out[0])

you can use underscore.js.
Example:

var stooges = [{name: 'moe', age: 40}, {name: 'larry', age: 50}, {name: 'curly', age: 60}];
var data = _.pluck(stooges, 'name');
console.log(data)

kFileToString

func kFileToString(filename string) (string, int)

data = kFileToString("line\n","file.txt")
string = data[0]
err = data[1]

kStringToFile

func kStringToFile( value string, filename string ) int

err = kStringToFile("line\n","file.txt")

kAppendFile

func kAppendFile(value, filename string) int

err = kAppendFile("string\n","file.txt") 

kRemoveFile

func kRemoveFile(filename string) int

err = kRemoveFile("file.txt")

kEncrypt/kDecrypt

func KEncrypt(skey , message string) ( string, int) func KDecrypt(skey, securemess string) ( string, int)

data = kEncrypt("1234","textoPlano")
data = kDecrypt("1234",data[0])
console.log(data[0])

Integration with Gentleman

Example GET

kCli.URL("http://httpbin.org")
req = kCli.Request()
req.Path("/headers")
req.SetHeader("Client", "gentleman")
res = req.Send()
console.log("Body: "+ res[0].String())

Example POST

kCli.URL("http://httpbin.org/post")
req1 = kCli.Request()
req1.Method("POST")
req1.Use(kBodyJSON({"foo": "bar"}))
res1 = req1.Send()


console.log("Status: ", res1[0].StatusCode)
console.log("\nBody: ", res1[0].String())

Utils SO

kGetEnv = os.Getenv
kSetEnv = os.Setenv
kHostname = os.Hostname
kGetpid = os.Getpid
kGetppid = os.Getppid
kGetgid = os.Getgid
kGetuid = os.Getuid
kGetegid = os.Getegid
kArgs = os.Args

Example 1

kSetEnv("VAR","data")
d = kGetEnv("VAR")
console.log(d)
console.log(kHostname())

Example for rewrite one value in file

function write(name, op, args) {
    if (kGetEnv("kFlag") != 1){
        data = kFileToString(name) ;
        kStringToFile("8080",name)
        kSetEnv("kFlag",1)
    }else{
        kSetEnv("kFlag",0)
    }
}

Notes:

• fsnotify used iNotify