Initial commit

1 files changed, 63 insertions, 0 deletions

diff --git a/filesystem.go b/filesystem.go
new file mode 100644
index 0000000..c33df15
--- /dev/null
+++ b/filesystem.go
@@ -0,0 +1,63 @@
+package pkgtools
+
+import (
+	"io/fs"
+	"math"
+	"os"
+	"strconv"
+	"time"
+)
+
+const maxLockWait = 10 * time.Second
+
+func CopyFile(dst string, src string) error {
+	return ErrNotImplemented
+}
+
+func HumanReadableSize(size int64) string {
+	suffixes := []string{
+		"B",
+		"K",
+		"M",
+		"G",
+		"T",
+	}
+
+	base := math.Log(float64(size)) / math.Log(1024)
+	newSize := math.Ceil(math.Pow(1024, base-math.Floor(base))*10) / 10
+	newSuffix := suffixes[int(math.Floor(base))]
+	ret := strconv.FormatFloat(newSize, 'f', -1, 64) + newSuffix
+	return ret
+}
+
+func IsFile(path string) (bool, error) {
+	info, err := os.Stat(path)
+	if err != nil {
+		return false, err
+	}
+	return info.Mode().IsRegular(), nil
+}
+
+func IsDir(path string) (bool, error) {
+	info, err := os.Stat(path)
+	if err != nil {
+		return false, err
+	}
+	return info.IsDir(), nil
+}
+
+func IsSymlink(path string) (bool, error) {
+	info, err := os.Stat(path)
+	if err != nil {
+		return false, err
+	}
+	return info.Mode() == fs.ModeSymlink, nil
+}
+
+func FileSize(fp string) (int64, error) {
+	info, err := os.Stat(fp)
+	if err != nil {
+		return 0, err
+	}
+	return info.Size(), nil
+}