Add --include-channels functionality

.gitignore

@@ -4,4 +4,5 @@ slack-archive
 .DS_Store
 *.log
 .token
-lib
+lib
+.env

README.md

@@ -31,6 +31,7 @@ npx slack-archive
 --use-previous-channel-config: Fetch messages from channels selected in previous run instead of prompting.
 --channel-types             Comma-separated list of channel types to fetch messages from.
                             (public_channel, private_channel, mpim, im)
+--include-channels          Comma-separated list of channels to include, in automatic mode
 --exclude-channels          Comma-separated list of channels to exclude, in automatic mode
 --no-backup:                Don't create backups. Not recommended.
 --no-search:                Don't create a search file, saving disk space.
@@ -53,7 +54,7 @@ This will be mostly painless, I promise.
 Head over to https://api.slack.com/apps and `Create New App`. Select `From scratch`.
 Give it a name and choose the workspace you'd like to export.
 
-Then, from the `Features` menu on the left, select `OAuth & Permission`. 
+Then, from the `Features` menu on the left, select `OAuth & Permission`.
 
 As a redirect URL, enter something random that doesn't actually exist, or a domain you control. For instace:
 
@@ -100,9 +101,9 @@ https://notarealurl.com/?code={code}&state=
 Copy everything between `?code=` and `&state`. This is your `code`. We'll need it in the
 next step.
 
-Next, we'll exchange your code for a token. To do so, we'll also need your `client secret` 
-from the first step when we created your app. In a browser, open this URL - replacing 
-`{your-team-name}`, `{your-client-id}`, `{your-code}` and `{your-client-secret}` with 
+Next, we'll exchange your code for a token. To do so, we'll also need your `client secret`
+from the first step when we created your app. In a browser, open this URL - replacing
+`{your-team-name}`, `{your-client-id}`, `{your-code}` and `{your-client-secret}` with
 your values.
 
 ```

src/cli.ts

@@ -19,6 +19,7 @@ import {
   EMOJIS_DATA_PATH,
   NO_SLACK_CONNECT,
   EXCLUDE_CHANNELS,
+  INCLUDE_CHANNELS,
 } from "./config.js";
 import { downloadExtras } from "./messages.js";
 import { downloadMessages } from "./messages.js";
@@ -116,6 +117,10 @@ async function selectChannels(
   }));
 
   if (AUTOMATIC_MODE || NO_SLACK_CONNECT) {
+    if (INCLUDE_CHANNELS) {
+      const includeChannels = INCLUDE_CHANNELS.split(',');
+      return channels.filter((channel) => includeChannels.includes(channel.name || ''));
+    }
     if (EXCLUDE_CHANNELS) {
       const excludeChannels = EXCLUDE_CHANNELS.split(',');
       return channels.filter((channel) => !excludeChannels.includes(channel.name || ''));

src/config.ts

@@ -45,6 +45,7 @@ export const FORCE_HTML_GENERATION = findCliParameter(
   "--force-html-generation"
 );
 export const EXCLUDE_CHANNELS = getCliParameter("--exclude-channels");
+export const INCLUDE_CHANNELS = getCliParameter("--include-channels");
 export const BASE_DIR = process.cwd();
 export const OUT_DIR = path.join(BASE_DIR, "slack-archive");
 export const TOKEN_FILE = path.join(OUT_DIR, ".token");