fixing installation issues

2 files changed, 62 insertions, 1 deletions

diff --git a/PKGBUILD b/PKGBUILD
index 7c4f61f80d4e..8eff43b3e1ca 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -13,7 +13,6 @@ sha256sums=('SKIP')
 build() {
   cd "$srcdir"
   export GOPATH="$srcdir"
-  go install
   go build -o rbcat main.go
 }
 
diff --git a/main.go b/main.go
new file mode 100644
index 000000000000..056036e29067
--- /dev/null
+++ b/main.go
@@ -0,0 +1,62 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"io"
+	"math"
+	"math/rand"
+	"os"
+)
+
+func rgb(i int) (int, int, int) {
+	var f = 0.1
+	return int(math.Sin(f*float64(i)+0)*127 + 128),
+		int(math.Sin(f*float64(i)+2*math.Pi/3)*127 + 128),
+		int(math.Sin(f*float64(i)+4*math.Pi/3)*127 + 128)
+}
+
+func main() {
+	info, _ := os.Stdin.Stat()
+	args := os.Args[1:]
+
+	if info.Mode()&os.ModeCharDevice != 0 && len(args) != 1 {
+		fmt.Println("The command is intended to work with pipes or a file.")
+		fmt.Println("Usage: cat your-file.txt | rbcat")
+		fmt.Println("Or: rbcat your-file.txt")
+		os.Exit(1)
+	}
+
+	if len(args) == 1 {
+		file, err := os.Open(args[0])
+		if err != nil {
+			fmt.Println(err)
+			return
+		}
+		defer file.Close()
+
+		r := bufio.NewReader(file)
+		j := rand.Intn(999999)
+		for {
+			input, _, err := r.ReadRune()
+			if err != nil && err == io.EOF {
+				break
+			}
+			r, g, b := rgb(j)
+			fmt.Printf("\033[38;2;%d;%d;%dm%c\033[0m", r, g, b, input)
+			j++
+		}
+	} else {
+		r := bufio.NewReader(os.Stdin)
+		j := rand.Intn(999999)
+		for {
+			input, _, err := r.ReadRune()
+			if err != nil && err == io.EOF {
+				break
+			}
+			r, g, b := rgb(j)
+			fmt.Printf("\033[38;2;%d;%d;%dm%c\033[0m", r, g, b, input)
+			j++
+		}
+	}
+}