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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "flag" | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "regexp" | ||
| "strings" | ||
|
|
||
| "github.com/zeebo/xxh3" | ||
| ) | ||
|
|
||
| var Verbose bool | ||
|
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||
| func Verbosef(format string, a ...any) { | ||
| if Verbose { | ||
| fmt.Printf(format, a...) | ||
| } | ||
| } | ||
|
|
||
| // Sanitize the repository by removing all the tasks and input files to make little lizard happy | ||
| func main() { | ||
| flag.BoolVar(&Verbose, "v", false, "Verbose output") | ||
| flag.Parse() | ||
| sanitizeInputsAndTasks() | ||
| } | ||
|
|
||
| var actions = []string{ | ||
| "Angry Alligator annihilated", | ||
| "Bold Bear buried", | ||
| "Clever Chameleon cleared", | ||
| "Daring Dragonfly deleted", | ||
| "Eager Eagle erased", | ||
| "Fierce Falcon finished", | ||
| "Gentle Giraffe gutted", | ||
| "Happy Hedgehog hid", | ||
| "Inquisitive Iguana invalidated", | ||
| "Jumpy Jackal junked", | ||
| "Keen Kangaroo kicked out", | ||
| "Lazy Lizard lost", | ||
| "Mellow Monkey moved away", | ||
| "Naughty Newt nixed", | ||
| "Obnoxious Owl obliterated", | ||
| "Proud Panther purged", | ||
| "Quick Quokka quashed", | ||
| "Rowdy Raccoon removed", | ||
| "Sneaky Snake shredded", | ||
| "Tiny Turtle trashed", | ||
| "Unique Unicorn undid", | ||
| "Valiant Vulture vanished", | ||
| "Witty Wolf wiped", | ||
| "Xenophobic Xerus x-ed out", | ||
| "Young Yak yielded nothing", | ||
| "Zany Zebra zeroed out", | ||
| } | ||
|
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||
| func sanitizeInputsAndTasks() { | ||
| var inputsSanitized int | ||
| var tasksSanitized int | ||
| // Walk all txt files and remove inputs and task descriptions | ||
| filepath.WalkDir(".", func(path string, d os.DirEntry, err error) error { | ||
| if strings.HasSuffix(path, ".git") { | ||
| return filepath.SkipDir | ||
| } | ||
| if d.IsDir() { | ||
| return nil | ||
| } | ||
| if !strings.HasSuffix(path, ".txt") { | ||
| return nil | ||
| } | ||
|
|
||
| if strings.HasPrefix(filepath.Base(path), "input") { | ||
| if sanitizeInput(path) { | ||
| inputsSanitized++ | ||
| } | ||
| } else { | ||
| if sanitizeTask(path) { | ||
| tasksSanitized++ | ||
| } | ||
| } | ||
| // if inputsSanitized > 1 || tasksSanitized > 1 { | ||
| // return filepath.SkipAll | ||
| // } | ||
| return nil | ||
| }) | ||
| fmt.Printf("Sanitized %d inputs and %d tasks\n", inputsSanitized, tasksSanitized) | ||
| } | ||
|
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| const fmtReplace = "<%s the content, and left this: %x>\n" | ||
|
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| var reSanitized = regexp.MustCompile(`^<[\w\s\-]+ the content, and left this: \w+>`) | ||
| var reInputAOC = regexp.MustCompile(`^input\d?\.txt$`) | ||
|
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| func sanitizeInput(path string) bool { | ||
| Verbosef("Checking input %s\n", path) | ||
| // ignore custom inputs, like input_123.txt | ||
| name := filepath.Base(path) | ||
| if !reInputAOC.MatchString(name) { | ||
| Verbosef("Ignoring custom input %s\n", path) | ||
| return false | ||
| } | ||
|
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| content, err := os.ReadFile(path) | ||
| catch(err) | ||
|
|
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| if reSanitized.Match(content) { | ||
| Verbosef("Input already sanitized in %s\n", path) | ||
| return false | ||
| } | ||
|
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| fmt.Printf("Sanitizing input %s\n", path) | ||
| action, hash := getActionHash(content) | ||
| replace := fmt.Sprintf(fmtReplace, action, hash) | ||
| err = os.WriteFile(path, []byte(replace), 0644) | ||
| catch(err) | ||
| return true | ||
| } | ||
|
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| var reTask = regexp.MustCompile(`(?s)(--- Day \d+: [^\n]*---\s*)\n([^\n]*)\n(.*)`) | ||
|
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| const fmtDayReplace = "$1\n" + fmtReplace | ||
|
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| func sanitizeTask(path string) bool { | ||
| Verbosef("Checking %s\n", path) | ||
| content, err := os.ReadFile(path) | ||
| catch(err) | ||
|
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||
| m := reTask.FindSubmatch(content) | ||
| if m == nil { | ||
| Verbosef("No task found in %s\n", path) | ||
| return false | ||
| } | ||
|
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| task := m[0] | ||
| // day := m[1] | ||
| trigger := m[2] | ||
| // theRest := m[3] | ||
|
|
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| if reSanitized.Match(trigger) { | ||
| Verbosef("Task already sanitized in %s\n", path) | ||
| return false | ||
| } | ||
|
|
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| fmt.Printf("Sanitizing task %s\n", path) | ||
| action, hash := getActionHash(task) | ||
| replace := fmt.Sprintf(fmtDayReplace, action, hash) | ||
| content = reTask.ReplaceAll(content, []byte(replace)) | ||
| catch(os.WriteFile(path, content, 0644)) | ||
| return true | ||
| } | ||
|
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||
| func getActionHash(content []byte) (string, uint64) { | ||
| content = bytes.TrimSpace(content) | ||
| hash := xxh3.Hash(content) | ||
| i := hash % uint64(len(actions)) | ||
| return actions[i], hash | ||
| } | ||
|
|
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| func catch(err error) { | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
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||
| func Fatalf(format string, a ...any) { | ||
| fmt.Fprintf(os.Stderr, format, a...) | ||
| os.Exit(1) | ||
| } |
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