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utils.go
38 lines (33 loc) · 840 Bytes
/
utils.go
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package main
import (
"fmt"
"go/build"
"io"
"os"
"path/filepath"
)
// fileExists checks if a file exist or not
func fileExists(f string) bool {
if _, err := os.Stat(f); os.IsNotExist(err) {
return false
}
return true
}
// findFile finds the location of the named file in GOROOT, GOPATH etc.
func findFile(file string) (string, error) {
dir, file := filepath.Split(file)
pkg, err := build.Import(dir, ".", build.FindOnly)
if err != nil {
return "", fmt.Errorf("can't find %q: %v", file, err)
}
return filepath.Join(pkg.Dir, file), nil
}
// legend prints sample data colorized
func legend(w io.Writer) {
for i := 0; i <= 10; i += 2 {
fmt.Fprintf(w, "%.1f%% %s\n", float64(i)/10, fadeprint("test", float64(i)/10))
}
for i := 5; i <= 100; i += 5 {
fmt.Fprintf(w, "%d%% %s\n", i, fadeprint("test", float64(i)))
}
}