gosl

gosl

This is an application that can make you write script with Go languages.

It is NOT an interpreter but the pure Go. The preprocessor tranforms the script into a Go program, instantly compile and run. So it is almost same as the standard Go with the same efficiency.

Benefit

1. Pure Go language. No need to learn a new script language.
2. Pre-imported packages and pre-defined functions make it easy to code.
3. Seamless integration with the Go project. E.g. can easily load configuratio or data file from the Go project.
4. Running efficiency same as Go, much faster than Python.

Example

#!/bin/gosl

import "encoding/json"

toJson := func(lines []string) string {
  res, _ := json.Marshal(struct {
    Lines []string `json:"lines"`
  }{
    Lines: lines,
  })
  return string(res)
}

files, _, _ := BashWithStdout("ls -l /tmp/")

Println(toJson(Split(files, "\n")))
    

Go Search is now operating with gosl. So you can find some good examples at: https://github.com/daviddengcn/gcse/tree/master/scripts

Installation and Usage

Download and install the package

go get github.com/daviddengcn/gosl
go install github.com/daviddengcn/gosl

Link to /bin

sudo ln -s $GOPATH/bin/gosl /bin/ls

Run a script

If a script starts with the bash interpreter line: #!/bin/gosl. You can run it like this

chmod a+x example.go
./example.go [params...]

Or you can explictly call gosl to run it:

gosl example.go [params...]

Pre-imported Packages

The following packages are pre-imported with ., i.e. you can directly use the methods exported by them. No complain of the compiler if you don't use them.

fmt, os, strings, strconv, math, time, and github.com/daviddengcn/gosl/builtin

Frequently Used Builtin Functions

More functions are defined in package daviddengcn/gosl/builtin/ (godoc)

License

Apache License V2