diff --git a/cmd/app/main.go b/cmd/app/main.go new file mode 100644 index 0000000..0957699 --- /dev/null +++ b/cmd/app/main.go @@ -0,0 +1,22 @@ +package main + +import ( + "fmt" + + "nshell/executor" + "nshell/suggestions" + + "github.com/c-bata/go-prompt" +) + +func main() { + fmt.Println("Wellcome to noko-shell(nshell) :3") + + options := []prompt.Option{ + prompt.OptionPrefix("nshell ^^>"), + prompt.OptionPrefixTextColor(prompt.Cyan), + } + + p := prompt.New(executor.Exec, suggestions.Completer, options...) + p.Run() +} diff --git a/config/config.go b/config/config.go new file mode 100644 index 0000000..4d5e572 --- /dev/null +++ b/config/config.go @@ -0,0 +1,6 @@ +// Package config current shell config +package config + +type Config struct { + UserLine string +} diff --git a/executor/executor.go b/executor/executor.go new file mode 100644 index 0000000..925f818 --- /dev/null +++ b/executor/executor.go @@ -0,0 +1,45 @@ +// Package executor exec commands +package executor + +import ( + "fmt" + "os" + "os/exec" + "strings" +) + +func Exec(line string) { + line = strings.TrimSpace(line) + if line == "" { + return + } + + args := strings.Fields(line) + command := args[0] + commandArgs := args[1:] + + if command == "exit" { + fmt.Println("Bye Bye my small deer :3") + os.Exit(0) + } + + if command == "cd" { + if len(commandArgs) < 1 { + fmt.Fprintln(os.Stderr, "cd: argument was skipped") + return + } + if err := os.Chdir(commandArgs[0]); err != nil { + fmt.Fprintln(os.Stderr, err) + } + return + } + + cmd := exec.Command(command, commandArgs...) + cmd.Stdin = os.Stdin + cmd.Stdout = os.Stdout + cmd.Stderr = os.Stderr + + if err := cmd.Run(); err != nil { + fmt.Fprintf(os.Stderr, "Execution error: %v\n", err) + } +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..0f78cec --- /dev/null +++ b/go.mod @@ -0,0 +1,14 @@ +module nshell + +go 1.27.2 + +require github.com/c-bata/go-prompt v0.2.6 + +require ( + github.com/mattn/go-colorable v0.1.7 // indirect + github.com/mattn/go-isatty v0.0.12 // indirect + github.com/mattn/go-runewidth v0.0.9 // indirect + github.com/mattn/go-tty v0.0.3 // indirect + github.com/pkg/term v1.2.0-beta.2 // indirect + golang.org/x/sys v0.0.0-20200918174421-af09f7315aff // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..257cea7 --- /dev/null +++ b/go.sum @@ -0,0 +1,25 @@ +github.com/c-bata/go-prompt v0.2.6 h1:POP+nrHE+DfLYx370bedwNhsqmpCUynWPxuHi0C5vZI= +github.com/c-bata/go-prompt v0.2.6/go.mod h1:/LMAke8wD2FsNu9EXNdHxNLbd9MedkPnCdfpU9wwHfY= +github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE= +github.com/mattn/go-colorable v0.1.7 h1:bQGKb3vps/j0E9GfJQ03JyhRuxsvdAanXlT9BTw3mdw= +github.com/mattn/go-colorable v0.1.7/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc= +github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s= +github.com/mattn/go-isatty v0.0.10/go.mod h1:qgIWMr58cqv1PHHyhnkY9lrL7etaEgOFcMEpPG5Rm84= +github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY= +github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU= +github.com/mattn/go-runewidth v0.0.6/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI= +github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0= +github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI= +github.com/mattn/go-tty v0.0.3 h1:5OfyWorkyO7xP52Mq7tB36ajHDG5OHrmBGIS/DtakQI= +github.com/mattn/go-tty v0.0.3/go.mod h1:ihxohKRERHTVzN+aSVRwACLCeqIoZAWpoICkkvrWyR0= +github.com/pkg/term v1.2.0-beta.2 h1:L3y/h2jkuBVFdWiJvNfYfKmzcCnILw7mJWm2JQuMppw= +github.com/pkg/term v1.2.0-beta.2/go.mod h1:E25nymQcrSllhX42Ok8MRm1+hyBdHY0dCeiKZ9jpNGw= +golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200909081042-eff7692f9009/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200918174421-af09f7315aff h1:1CPUrky56AcgSpxz/KfgzQWzfG09u5YOL8MvPYBlrL8= +golang.org/x/sys v0.0.0-20200918174421-af09f7315aff/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= diff --git a/suggestions/suggestions.go b/suggestions/suggestions.go new file mode 100644 index 0000000..4e7b99b --- /dev/null +++ b/suggestions/suggestions.go @@ -0,0 +1,13 @@ +// Package suggestions +package suggestions + +import "github.com/c-bata/go-prompt" + +var defaultSuggestions = []prompt.Suggest{ + {Text: "exit", Description: "Exit from shell"}, +} + +func Completer(d prompt.Document) []prompt.Suggest { + // Если пользователь уже начал что-то писать, фильтруем список + return prompt.FilterHasPrefix(defaultSuggestions, d.GetWordBeforeCursor(), true) +}