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| 1 | //usr/bin/env go run $0 $@; exit $? |
1 | //usr/bin/env go run $0 $@; exit $? |
| - | 2 | ||
| - | 3 | // ============================================================================ |
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| - | 4 | // Create |
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| - | 5 | // name : Andre Rikkert de Koe date: Mar 2018 |
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| - | 6 | // descr : filefind |
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| - | 7 | // This is a demo of programming in the Elixir language. |
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| - | 8 | // Its part of a project to implement a program to create a directory |
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| - | 9 | // tree similar to the output of the Unix find program. |
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| - | 10 | // EUID : Any user who has read access to all the files being searched for. |
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| - | 11 | // run : interactive |
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| - | 12 | // |
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| - | 13 | // Changes |
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| - | 14 | // name : date: |
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| - | 15 | // descr : short description |
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| - | 16 | // |
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| - | 17 | // ============================================================================ |
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| - | 18 | ||
| 2 | package main |
19 | package main |
| 3 | 20 | ||
| 4 | import ( |
21 | import ( |
| 5 | "fmt" |
22 | "fmt" |
| 6 | "io/ioutil" |
23 | "io/ioutil" |
| 7 | "log" |
24 | "log" |
| 8 | "os" |
25 | "os" |
| 9 | ) |
26 | ) |
| 10 | 27 | ||
| 11 | // ============================================================================= |
28 | // ============================================================================= |
| 12 | // Functions |
29 | // Functions |
| 13 | // ============================================================================= |
30 | // ============================================================================= |
| 14 | 31 | ||
| 15 | func Usage(progname, mesg string) { |
32 | func Usage(progname, mesg string) { |
| 16 | log.Print("Usage: " + progname + " directory") |
33 | log.Print("Usage: " + progname + " directory") |
| 17 | log.Fatal(mesg) |
34 | log.Fatal(mesg) |
| 18 | } |
35 | } |
| 19 | 36 | ||
| 20 | func traverse(s string) { |
37 | func traverse(s string) { |
| 21 | curdir, err := os.Getwd() |
38 | curdir, err := os.Getwd() |
| 22 | if err := os.Chdir(s); err != nil { |
39 | if err := os.Chdir(s); err != nil { |
| 23 | log.Fatal(err) |
40 | log.Fatal(err) |
| 24 | } |
41 | } |
| 25 | if err != nil { |
42 | if err != nil { |
| 26 | log.Fatal(err) |
43 | log.Fatal(err) |
| 27 | } |
44 | } |
| 28 | curdir2, err := os.Getwd() |
45 | curdir2, err := os.Getwd() |
| 29 | files, err := ioutil.ReadDir(curdir2) |
46 | files, err := ioutil.ReadDir(curdir2) |
| 30 | if err != nil { |
47 | if err != nil { |
| 31 | log.Fatal(err) |
48 | log.Fatal(err) |
| 32 | } |
49 | } |
| 33 | for _, f := range files { |
50 | for _, f := range files { |
| 34 | fmt.Println (curdir2 + "/" + f.Name()) |
51 | fmt.Println (curdir2 + "/" + f.Name()) |
| 35 | //fmt.Println(f.Name()) |
52 | //fmt.Println(f.Name()) |
| 36 | fi, err := os.Stat(f.Name()) |
53 | fi, err := os.Stat(f.Name()) |
| 37 | if err != nil { |
54 | if err != nil { |
| 38 | log.Fatal(err) |
55 | log.Fatal(err) |
| 39 | } |
56 | } |
| 40 | mode := fi.Mode(); |
57 | mode := fi.Mode(); |
| 41 | if mode.IsDir() { |
58 | if mode.IsDir() { |
| 42 | traverse(fi.Name()) |
59 | traverse(fi.Name()) |
| 43 | } |
60 | } |
| 44 | } |
61 | } |
| 45 | os.Chdir(curdir) |
62 | os.Chdir(curdir) |
| 46 | } |
63 | } |
| 47 | 64 | ||
| 48 | func start_traverse(s string) { |
65 | func start_traverse(s string) { |
| 49 | fmt.Println(s) |
66 | fmt.Println(s) |
| 50 | traverse(s) |
67 | traverse(s) |
| 51 | } |
68 | } |
| 52 | 69 | ||
| 53 | // ============================================================================= |
70 | // ============================================================================= |
| 54 | // MAIN |
71 | // MAIN |
| 55 | // ============================================================================= |
72 | // ============================================================================= |
| 56 | 73 | ||
| 57 | func main() { |
74 | func main() { |
| 58 | progname := os.Args[0] |
75 | progname := os.Args[0] |
| 59 | if len(os.Args) == 2 { |
76 | if len(os.Args) == 2 { |
| 60 | directory := os.Args[1] |
77 | directory := os.Args[1] |
| 61 | fi, err := os.Stat(directory) |
78 | fi, err := os.Stat(directory) |
| 62 | if err != nil { |
79 | if err != nil { |
| 63 | _ = err // ugly hack to allow not using the err variable |
80 | _ = err // ugly hack to allow not using the err variable |
| 64 | Usage(progname, "ERROR: Not a directory : " + directory) |
81 | Usage(progname, "ERROR: Not a directory : " + directory) |
| 65 | } |
82 | } |
| 66 | if fi.IsDir() { |
83 | if fi.IsDir() { |
| 67 | start_traverse(directory) |
84 | start_traverse(directory) |
| 68 | } else { |
85 | } else { |
| 69 | Usage(progname, "ERROR: Not a directory : " + directory) |
86 | Usage(progname, "ERROR: Not a directory : " + directory) |
| 70 | } |
87 | } |
| 71 | } else { |
88 | } else { |
| 72 | Usage(progname, "ERROR: 1 argument expected") |
89 | Usage(progname, "ERROR: 1 argument expected") |
| 73 | } |
90 | } |
| 74 | } |
91 | } |