add eventhook examples

bin/hooks/README.md

@@ -0,0 +1,17 @@
+standalone programs which are executed by copyparty when an event happens (upload, file rename, delete, ...)
+
+these programs either take zero arguments, or a filepath (the affected file), or a json message with filepath + additional info
+
+
+# after upload
+* [notify.py](notify.py) shows a desktop notification
+* [discord-announce.py](discord-announce.py) announces new uploads on discord using webhooks
+* [reject-mimetype.py](reject-mimetype.py) rejects uploads unless the mimetype is acceptable
+
+
+# before upload
+* [reject-extension.py](reject-extension.py) rejects uploads if they match a list of file extensions
+
+
+# on message
+* [wget.py](wget.py) lets you download files by POSTing URLs to copyparty

bin/mtag/README.md

@@ -1,5 +1,9 @@
 standalone programs which take an audio file as argument
 
+you may want to forget about all this fancy complicated stuff and just use [event hooks](../hooks/) instead (which doesn't need `-e2ts` or ffmpeg) 
+
+----
+
 **NOTE:** these all require `-e2ts` to be functional, meaning you need to do at least one of these: `apt install ffmpeg` or `pip3 install mutagen`
 
 some of these rely on libraries which are not MIT-compatible
@@ -17,6 +21,7 @@ these do not have any problematic dependencies at all:
 * [cksum.py](./cksum.py) computes various checksums
 * [exe.py](./exe.py) grabs metadata from .exe and .dll files (example for retrieving multiple tags with one parser)
 * [wget.py](./wget.py) lets you download files by POSTing URLs to copyparty
+  * also available as an [event hook](../hooks/wget.py)
 
 
 # dependencies