File size distribution: Difference between revisions
Added Go
SqrtNegInf (talk | contribs) m (→{{header|Perl 6}}: consolidated prints) |
(Added Go) |
||
Line 152:
</pre>
Note that it is possible to track files up to 10^24 (Yottabyte) in size with this implementation, but if you have a file that large, you shouldn't be needing such programs. :)
=={{header|Go}}==
{{trans|Kotlin}}
<lang go>package main
import (
"fmt"
"log"
"math"
"os"
"path/filepath"
)
func commatize(n int64) string {
s := fmt.Sprintf("%d", n)
if n < 0 {
s = s[1:]
}
le := len(s)
for i := le - 3; i >= 1; i -= 3 {
s = s[0:i] + "," + s[i:]
}
if n >= 0 {
return s
}
return "-" + s
}
func fileSizeDistribution(root string) {
var sizes [12]int
files := 0
directories := 0
totalSize := int64(0)
walkFunc := func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
files++
if info.IsDir() {
directories++
}
size := info.Size()
if size == 0 {
sizes[0]++
return nil
}
totalSize += size
logSize := math.Log10(float64(size))
index := int(math.Floor(logSize))
sizes[index+1]++
return nil
}
err := filepath.Walk(root, walkFunc)
if err != nil {
log.Fatal(err)
}
fmt.Printf("File size distribution for '%s' :-\n\n", root)
for i := 0; i < len(sizes); i++ {
if i == 0 {
fmt.Print(" ")
} else {
fmt.Print("+ ")
}
fmt.Printf("Files less than 10 ^ %-2d bytes : %5d\n", i, sizes[i])
}
fmt.Println(" -----")
fmt.Printf("= Total number of files : %5d\n", files)
fmt.Printf(" including directories : %5d\n", directories)
c := commatize(totalSize)
fmt.Println("\n Total size of files :", c, "bytes")
}
func main() {
fileSizeDistribution("./")
}</lang>
{{out}}
<pre>
File size distribution for './' :-
Files less than 10 ^ 0 bytes : 0
+ Files less than 10 ^ 1 bytes : 0
+ Files less than 10 ^ 2 bytes : 8
+ Files less than 10 ^ 3 bytes : 98
+ Files less than 10 ^ 4 bytes : 163
+ Files less than 10 ^ 5 bytes : 18
+ Files less than 10 ^ 6 bytes : 8
+ Files less than 10 ^ 7 bytes : 18
+ Files less than 10 ^ 8 bytes : 1
+ Files less than 10 ^ 9 bytes : 0
+ Files less than 10 ^ 10 bytes : 0
+ Files less than 10 ^ 11 bytes : 0
-----
= Total number of files : 314
including directories : 7
Total size of files : 74,205,408 bytes
</pre>
=={{header|Julia}}==
| |||