Archive snapshots of websites locally (#672)

* Add basic HTML snapshots

* Implement asset list

* Add snapshot creation tests

* Add deletion tests

* Show file size

* Remove snapshots

* Create new snapshots

* Switch to single-file

* CSS tweak

* Remove auto refresh

* Show delete link when there is no file yet

* Add current date to display name

* Add flag for snapshot support

* Add option for disabling automatic snapshots

* Make snapshots sharable

* Document image variants

* Update README.md

* Add migrations

* Fix tests

scripts/build-docker.sh

@@ -2,14 +2,29 @@
 
 version=$(<version.txt)
 
-docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 \
+# Base image
+docker buildx build --target linkding --platform linux/amd64,linux/arm64,linux/arm/v7 \
   -f docker/default.Dockerfile \
   -t sissbruecker/linkding:latest \
   -t sissbruecker/linkding:$version \
   --push .
 
-docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 \
+docker buildx build --target linkding --platform linux/amd64,linux/arm64,linux/arm/v7 \
   -f docker/alpine.Dockerfile \
   -t sissbruecker/linkding:latest-alpine \
   -t sissbruecker/linkding:$version-alpine \
   --push .
+
+# Plus image with support for single-file snapshots
+# Needs checking if this works with ARMv7, excluded for now
+docker buildx build --target linkding-plus --platform linux/amd64,linux/arm64 \
+  -f docker/default.Dockerfile \
+  -t sissbruecker/linkding:latest-plus \
+  -t sissbruecker/linkding:$version-plus \
+  --push .
+
+docker buildx build --target linkding-plus --platform linux/amd64,linux/arm64 \
+  -f docker/alpine.Dockerfile \
+  -t sissbruecker/linkding:latest-alpine-plus \
+  -t sissbruecker/linkding:$version-alpine-plus \
+  --push .