build: add 9.1

Author: Bogdanp

README.md

@@ -1,9 +1,9 @@
 # racket-docker
 
-Docker images for various Racket versions available on DockerHub as [`racket/racket:<version>`](https://hub.docker.com/r/racket/racket/). For example, to run a Racket 9.0 REPL:
+Docker images for various Racket versions available on DockerHub as [`racket/racket:<version>`](https://hub.docker.com/r/racket/racket/). For example, to run a Racket 9.1 REPL:
 
 ```
-$ docker run -it racket/racket:9.0-full
+$ docker run -it racket/racket:9.1-full
 ```
 
 #### Normal images
@@ -16,7 +16,7 @@ These images use the `minimal-install` of Racket to avoid pulling in things like
 DrRacket or Scribble. This also means many `raco` commands such as `raco make`
 will be missing; install the `compiler-lib` package to get most of the standard
 `raco` commands. Alternatively, use the "full" images instead such as
-`racket/racket:9.0-full`.
+`racket/racket:9.1-full`.
 
 Versions: 6.1 and above. Racket CS images are available for 7.4 and above.
 

build.sh

@@ -136,15 +136,15 @@ foreach () {
   done;
 };
 
-declare -r LATEST_RACKET_VERSION="9.0";
+declare -r LATEST_RACKET_VERSION="9.1";
 
 tag_latest () {
   declare -r repository="${1}";
   docker image tag "${repository}:${LATEST_RACKET_VERSION}" "${repository}:latest";
 };
 
 build_all_9x () {
-  foreach build_9x "9.0";
+  foreach build_9x "9.0" "9.1";
   tag_latest "${DOCKER_REPOSITORY}";
   tag_latest "${SECONDARY_DOCKER_REPOSITORY}";
 }