a couple more featuresHEADmain

(filtering, read from file & pipe)

1 files changed, 18 insertions, 15 deletions

diff --git a/Readme.md b/Readme.md
index a34e921..f754362 100644
--- a/Readme.md
+++ b/Readme.md
@@ -3,33 +3,36 @@
 a tool to answer to the question "how to check that the gtfs realtime feed says
 what it's supposed to if for some unfortunate reason you can't read binary?".
 
-At 188 crates, it might be suspected that it gives a *slightly* over-engineered
+At 197 crates, it might be suspected that it gives a *slightly* over-engineered
 answer.
 
 ~~~
-Usage: showrt [OPTIONS] <URL>
+Usage: showrt [OPTIONS] [URL_OR_FILE]
 
 Arguments:
-  <URL>  uri of the GTFS RT feed to fetch & display
+  [URL_OR_FILE]  Either a file or an URI containing the gtfs realtime feed.
+                 Omit this to read from stdin instead
 
 Options:
-      --json             emit the feed as json
-  -i, --ignore-nonfatal  ignore things that look wrong as long as possible
-      --no-colors        don't do terminal colours
-  -h, --help             Print help information
-  -V, --version          Print version information
+      --json                   emit the feed as json
+  -f, --filter-trip <TRIP_ID>  filter for FeedEntities affecting the given trip id
+  -i, --ignore-content-type    ignore the Content-Type header (default is to 
+                               abort if it's not application/octet-string)
+      --no-colors              don't do terminal colours in output
+  -h, --help                   Print help information
+  -V, --version                Print version information
 ~~~
 
 ### Features:
- - fetch feeds from some url
- - display feeds in protobuf pseudo-format, optionally with fancy colours
- - dump the entire feed as json to process it with `jq` & friends
+ - read feeds from an url, a file, or from stdin
+ - display feeds in fancy colours (or without them) and with timestamps in a
+   more human-readable format than seconds since the unix epoch
+ - dump the entire feed as json
+ - be useful with pipes, e.g. fetch with `curl` or process with `jq`
+ - filter for a specific trip (works well with `watch` to observe a single trip)
  - error messages with entirely too many arrows in them
 
 ### Still Todo:
- - open local files (why do people even have these?)
- - play nice with (input-)pipes
- - optionally convert all dates into something more human-friendly than seconds
-   since the unix epoch
+ - disable colours in case of pipes
  - optionally collapse translations that contain only one language in the output