gone, trends

cmd/gone/gone.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	e "codeberg.org/pebbe/errors"
+
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+)
+
+var (
+	x = e.ExitErr
+)
+
+func main() {
+	current := make(map[string]bool)
+	fp, err := os.Open(os.Args[2])
+	x(err)
+	scanner := bufio.NewScanner(fp)
+	for scanner.Scan() {
+		current[strings.Split(scanner.Text(), "\t")[1]] = true
+	}
+	x(scanner.Err())
+	fp.Close()
+
+	var last string
+	fp, err = os.Open(os.Args[1])
+	x(err)
+	scanner = bufio.NewScanner(fp)
+	for scanner.Scan() {
+		aa := strings.Split(scanner.Text(), "\t")
+		if !current[aa[1]] {
+			fmt.Printf("%s\t%s\n", aa[0], aa[1])
+		}
+		last = aa[0]
+	}
+	x(scanner.Err())
+	fp.Close()
+	fmt.Printf("%s\t\n", last)
+}