2020-11-12 19:19:36 +00:00
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package main
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import (
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2020-11-13 05:34:00 +00:00
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"bufio"
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2020-11-13 03:46:00 +00:00
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"flag"
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"fmt"
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2020-11-12 22:06:19 +00:00
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"io"
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"io/ioutil"
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2020-11-13 05:34:00 +00:00
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"os"
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"os/user"
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"path"
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"path/filepath"
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2020-11-13 04:16:43 +00:00
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"strings"
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2020-11-13 05:33:03 +00:00
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"time"
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2020-11-12 19:19:36 +00:00
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)
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func main() {
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2020-11-13 03:46:00 +00:00
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flag.Parse()
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switch flag.Arg(0) {
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case "set":
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2020-11-13 03:59:45 +00:00
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err := SetVenture(flag.Args()[1:])
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if err != nil {
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fmt.Fprintf(os.Stderr, "Could not set: %v", err)
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}
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case "get":
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err := GetVenture(flag.Args()[1:])
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if err != nil {
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fmt.Fprintf(os.Stderr, "Could not get: %v", err)
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}
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default:
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fmt.Printf("Usage:\n\t%v <set|get>\n", os.Args[0])
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flag.PrintDefaults()
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}
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}
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2020-11-13 05:33:03 +00:00
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// GetVenture collects all recent ventures from all users on the system.
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// Any errors that occur while pulling individual ventures are silently ignored
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func GetVenture(args []string) error {
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// Set the expiration date for ventures at 2 weeks.
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freshLimit := time.Now().AddDate(0, 0, -14)
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allVenturePaths, err := filepath.Glob("/home/*/.venture")
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if err != nil {
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// *Should* never happen, since path is hardcoded and that's the only reason Glob can error out.
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return err
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}
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// Filter out any ventures that are older than our cutoff time.
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freshVenturePaths := make([]string, 0, len(allVenturePaths))
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for _, venturePath := range allVenturePaths {
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ventureInfo, err := os.Stat(venturePath)
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if err != nil {
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continue
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}
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if ventureInfo.ModTime().After(freshLimit) {
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freshVenturePaths = append(freshVenturePaths, venturePath)
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}
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}
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// Print the contents of all ventures
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for _, venturePath := range freshVenturePaths {
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ventureBytes, err := ioutil.ReadFile(venturePath)
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if err != nil {
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continue
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}
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venture := string(ventureBytes)
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// Check to see if file starts with user's name.
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if !strings.HasPrefix(venture, "~") {
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// Strip /home from path
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homelessPath, err := filepath.Rel("/home", venturePath)
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if err != nil {
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continue
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}
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// Strip .venture from path, leaving us with the user's name.
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username := filepath.Dir(homelessPath)
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venture = fmt.Sprintf("~%s: %s", username, venture)
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}
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// Trim trailing newline (if any)
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venture = strings.TrimSpace(venture)
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fmt.Println(venture)
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}
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return nil
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}
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2020-11-13 03:46:00 +00:00
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// SetVenture sets the curent user's venture, either by reading the value from the command line or by prompting the user to input it interactively.
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func SetVenture(args []string) error {
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curUser, err := user.Current()
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if err != nil {
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return err
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}
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2020-11-13 03:11:40 +00:00
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// User status is written to ~/.venture
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2020-11-12 22:13:09 +00:00
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outputPath := path.Join(curUser.HomeDir, ".venture")
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2020-11-13 03:11:40 +00:00
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// Prompt user for input
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fmt.Printf("What's ~%v been up to?\n~%v", curUser.Username, curUser.Username)
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reader := bufio.NewReader(os.Stdin)
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input, err := reader.ReadString('\n')
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if err != nil && err != io.EOF {
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return err
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}
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2020-11-13 03:11:40 +00:00
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// Remove file on blank input
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if strings.TrimSpace(input) == "" {
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err = os.Remove(outputPath)
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// File already pre-non-existing is considered success.
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if os.IsNotExist(err) {
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return nil
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} else if err != nil {
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return err
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}
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2020-11-13 03:59:45 +00:00
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return nil
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2020-11-12 22:13:09 +00:00
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}
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2020-11-13 03:11:40 +00:00
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// Prepend status with user's name
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input = fmt.Sprintf("~%s%s", curUser.Username, input)
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2020-11-13 03:11:40 +00:00
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// Write file and create if it doesn't exist as world-readable.
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2020-11-12 22:06:19 +00:00
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err = ioutil.WriteFile(outputPath, []byte(input), 0644)
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if err != nil {
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2020-11-13 03:59:45 +00:00
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return err
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2020-11-12 22:06:19 +00:00
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}
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2020-11-13 03:59:45 +00:00
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return nil
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2020-11-13 05:34:00 +00:00
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}
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