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Merged
gammazero merged 1 commit into from
Feb 21, 2025
Merged

Update help text #14

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2 changes: 1 addition & 1 deletion random/files/random-files/README.md
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Expand Up @@ -101,4 +101,4 @@ Note: Specifying the same seed will produce the same results.

### Acknowledgments

Credit to Juan Benet as the author of [`go-random-files`](https://github.com/jbenet/go-random-files) from which this code was derived.
Credit to [Juan Benet](https://github.com/jbenet) as the author of [`go-random-files`](https://github.com/jbenet/go-random-files) from which this code was derived.
22 changes: 15 additions & 7 deletions random/files/random-files/main.go
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Expand Up @@ -9,13 +9,17 @@ import (
)

func main() {
var usage = `usage: %s [options] <path>...
Write a random filesystem hierarchy to each <path>
var usage = `NAME
%s - Write a random filesystem hierarchy to each <path>

Options:
USAGE
%s [options] <path>...

OPTIONS:
`
flag.Usage = func() {
fmt.Fprintf(os.Stderr, usage, os.Args[0])
cmd := os.Args[0]
fmt.Fprintf(os.Stderr, usage, cmd, cmd)
flag.PrintDefaults()
}

Expand All @@ -31,9 +35,9 @@ Options:
flag.Int64Var(&cfg.FileSize, "filesize", cfg.FileSize, "bytes of random data in each file")
flag.IntVar(&cfg.Dirs, "dirs", cfg.Dirs, "number of subdirectories at each depth")
flag.IntVar(&cfg.Files, "files", cfg.Files, "number of files at each depth")
flag.BoolVar(&cfg.RandomDirs, "random-dirs", cfg.RandomDirs, "randomize number of subdirectories, from 1 to -Dirs")
flag.BoolVar(&cfg.RandomFiles, "random-files", cfg.RandomFiles, "randomize number of files, from 1 to -Files")
flag.BoolVar(&cfg.RandomSize, "random-size", cfg.RandomSize, "randomize file size, from 1 to -FileSize")
flag.BoolVar(&cfg.RandomDirs, "random-dirs", cfg.RandomDirs, "randomize number of subdirectories, from 1 to -dirs")
flag.BoolVar(&cfg.RandomFiles, "random-files", cfg.RandomFiles, "randomize number of files, from 1 to -files")
flag.BoolVar(&cfg.RandomSize, "random-size", cfg.RandomSize, "randomize file size, from 1 to -filesize")
flag.Int64Var(&cfg.Seed, "seed", cfg.Seed, "random seed, 0 for current time")
flag.Parse()

Expand All @@ -46,6 +50,10 @@ Options:
err := files.Create(cfg, paths...)
if err != nil {
fmt.Fprintln(os.Stderr, "error:", err)
if len(paths) < 1 {
fmt.Fprintln(os.Stderr)
flag.Usage()
}
os.Exit(1)
}
}