add buildscripts for js deps

.gitignore

@@ -19,3 +19,6 @@ dist/
 
 # other licenses
 contrib/
+
+# deps
+copyparty/web/deps

scripts/deps-docker/Dockerfile

@@ -0,0 +1,43 @@
+FROM    alpine:3.10
+WORKDIR /z
+ENV     ver_forge=0.8.5 \
+        ver_ogvjs=1.6.1
+
+# download
+RUN     apk add make g++ git bash npm patch wget tar gzip unzip \
+        && wget https://github.com/digitalbazaar/forge/archive/$ver_forge.tar.gz \
+        && wget https://github.com/brion/ogv.js/releases/download/$ver_ogvjs/ogvjs-$ver_ogvjs.zip \
+        && tar -xf $ver_forge.tar.gz \
+        && unzip ogvjs-$ver_ogvjs.zip \
+        && cd forge-$ver_forge \
+        && npm install
+
+# customize
+COPY    forge.patch /z
+
+# build forge
+RUN     cd forge-$ver_forge \
+        && patch -p1 < /z/forge.patch \
+        && npm run build \
+        && mkdir /z/dist \
+        && cp -pv dist/forge.sha512.* /z/dist
+
+# build ogvjs
+RUN     cd ogvjs-$ver_ogvjs \
+        && cp -pv \
+            ogv.js \
+            ogv-worker-audio.js \
+            ogv-demuxer-ogg.js \
+            ogv-demuxer-ogg-wasm.js \
+            ogv-demuxer-ogg-wasm.wasm \
+            ogv-demuxer-webm.js \
+            ogv-demuxer-webm-wasm.js \
+            ogv-demuxer-webm-wasm.wasm \
+            ogv-decoder-audio-opus.js \
+            ogv-decoder-audio-opus-wasm.js \
+            ogv-decoder-audio-opus-wasm.wasm \
+            ogv-decoder-audio-vorbis.js \
+            ogv-decoder-audio-vorbis-wasm.js \
+            ogv-decoder-audio-vorbis-wasm.wasm \
+            dynamicaudio.swf \
+            /z/dist

scripts/deps-docker/Makefile

@@ -0,0 +1,20 @@
+self := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+vend := $(self)/../../copyparty/web/deps
+
+all:
+	service docker start
+	
+	docker build -t build-copyparty-deps .
+	
+	rm -rf $(vend)
+	mkdir $(vend)
+
+	echo "tar -cC /z dist" | \
+	docker run --rm -i build-copyparty-deps:latest | \
+	tar -xvC $(vend) --strip-components=1
+
+	chown -R `stat $(self) -c %u:%g` $(vend)
+
+sh:
+	@printf "\n\033[1;31mopening a shell in the most recently created docker image\033[0m\n"
+	docker run --rm -it `docker images -aq | head -n 1` /bin/bash

scripts/deps-docker/forge.patch

@@ -0,0 +1,14 @@
+diff -NarU3 forge-0.8.5/webpack.config.js forge-0.8.5-mod/webpack.config.js
+--- forge-0.8.5/webpack.config.js	2019-06-19 03:05:22.000000000 +0200
++++ forge-0.8.5-mod/webpack.config.js	2019-06-26 00:11:42.108019160 +0200
+@@ -31,6 +31,10 @@
+     library: null,
+     libraryTarget: null
+   }
++  ,{
++    entry: ['./lib/sha512.js', './lib/forge.js'],
++    filenameBase: 'forge.sha512'
++  }
+   // Custom builds can be created by specifying the high level files you need
+   // webpack will pull in dependencies as needed.
+   //