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import.go
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import.go
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package main
// Implements importing history from a Slack export from:
// https://my.slack.com/services/export
import (
"encoding/json"
"io/ioutil"
"log"
)
type Message struct {
Type string
User string
Text string
TS string
}
// Start an import from a slack export directory
// Does some basic error checking then imports the data in the background
func StartImport(dir *string, channel *string) (err error) {
log.Printf("Starting import from %s", *dir)
// Does this directory exist? Get its contents
contents, err := ioutil.ReadDir(*dir)
if err != nil {
return err
}
// Is there a users.json or channel.json file?
_, err = ioutil.ReadFile(*dir + "/users.json")
if err != nil {
_, err = ioutil.ReadFile(*dir + "/channel.json")
if err != nil {
return err
}
}
// Looks good, import each directory/channel in a goroutine
go func() {
for _, file := range contents {
if file.IsDir() {
if *channel == "" || *channel == file.Name() {
ImportDir(*dir + "/" + file.Name())
}
}
}
// Write the state file
err = markovChain.Save(stateFile)
if err != nil {
log.Fatal(err)
}
log.Printf("Import complete. %d suffixes", len(markovChain.Chain))
}()
return nil
}
// Handles the import of a channel/directory
func ImportDir(dir string) {
contents, err := ioutil.ReadDir(dir)
if err != nil {
log.Fatal(err)
}
for _, file := range contents {
if !file.IsDir() {
contents, err := ioutil.ReadFile(dir + "/" + file.Name())
if err != nil {
log.Fatal(err)
}
// parse into json
var messages []Message
err = json.Unmarshal(contents, &messages)
if err != nil {
log.Fatal(err)
}
for _, message := range messages {
text := message.Text
text = parseText(text)
if text != "" {
markovChain.Write(text)
}
}
}
}
}