Add skia-wasm-release image.

This should let us pipe continuous builds into jsfiddle.skia.org and
skottie.skia.org

Bug: skia:
Change-Id: I587e1293237d42dfdacae0757f44634f29d6f251
Reviewed-on: https://skia-review.googlesource.com/c/168440
Reviewed-by: Joe Gregorio <jcgregorio@google.com>

docker/README.md

@@ -15,6 +15,20 @@ need to manually push a verison, then run the following commands:
     docker tag skia-release gcr.io/skia-public/skia-release:prod
     docker push gcr.io/skia-public/skia-release:prod
 
+skia-wasm-release
+------
+
+This image is used to build the Web Assembly (WASM) libraries of Skia
+at TOT.
+
+There is a continuous process that builds this docker image, but if you
+need to manually push a verison, then run the following commands:
+
+    docker build -t skia-wasm-release ./docker/skia-wasm-release/
+    docker tag skia-wasm-release gcr.io/skia-public/skia-wasm-release:prod
+    docker push gcr.io/skia-public/skia-wasm-release:prod
+
+
 
 skia-with-swift-shader-base
 ------

docker/cloudbuild.yaml

@@ -13,6 +13,11 @@ steps:
   - name: 'gcr.io/cloud-builders/docker'
     args: ['build', '-t', 'gcr.io/$PROJECT_ID/skia-release:prod', './docker/skia-release']
     timeout: 7200s
+
+  - name: 'gcr.io/cloud-builders/docker'
+    args: ['build', '-t', 'gcr.io/$PROJECT_ID/skia-wasm-release:prod', './docker/skia-wasm-release']
+    timeout: 7200s
+
   - name: 'gcr.io/skia-public/infra:prod'
     dir: '/home/skia/golib/src/go.skia.org/infra/fiddlek'
     env:
@@ -20,6 +25,7 @@ steps:
       - 'SKIP_BUILD=1'
     args: ['./build_fiddler_release']
     timeout: 600s
+
   - name: 'gcr.io/skia-public/infra:prod'
     dir: '/home/skia/golib/src/go.skia.org/infra/skottie'
     env:
@@ -27,6 +33,7 @@ steps:
       - 'SKIP_BUILD=1'
     args: ['make', 'release_ci']
     timeout: 600s
+
   - name: 'gcr.io/skia-public/infra:prod'
     dir: '/home/skia/golib/src/go.skia.org/infra/debugger'
     env:
@@ -34,12 +41,15 @@ steps:
       - 'SKIP_BUILD=1'
     args: ['make', 'release_ci']
     timeout: 600s
+
   - name: 'gcr.io/cloud-builders/docker'
     args: ['build', '-t', 'gcr.io/$PROJECT_ID/fiddler:$COMMIT_SHA', '/workspace/__fiddler_staging']
     timeout: 600s
+
   - name: 'gcr.io/cloud-builders/docker'
     args: ['build', '-t', 'gcr.io/$PROJECT_ID/skottie:$COMMIT_SHA', '/workspace/__skottie_staging']
     timeout: 600s
+
   - name: 'gcr.io/cloud-builders/docker'
     args: ['build', '-t', 'gcr.io/$PROJECT_ID/debugger:$COMMIT_SHA', '/workspace/__debugger_staging']
     timeout: 600s
@@ -48,6 +58,7 @@ images:
   - 'gcr.io/$PROJECT_ID/skottie:$COMMIT_SHA'
   - 'gcr.io/$PROJECT_ID/debugger:$COMMIT_SHA'
   - 'gcr.io/$PROJECT_ID/skia-release:prod'
+  - 'gcr.io/$PROJECT_ID/skia-wasm-release:prod'
 timeout: 7200s
 options:
   machineType: 'N1_HIGHCPU_32'

docker/skia-wasm-release/Dockerfile

@@ -0,0 +1,18 @@
+# Dockerfile for building the WASM libraries used by jsfiddle.skia.org
+FROM gcr.io/skia-public/emsdk-release:prod
+
+RUN cd /tmp \
+  && git clone 'https://chromium.googlesource.com/chromium/tools/depot_tools.git' \
+  && mkdir -p /tmp/skia \
+  && cd /tmp/skia \
+  && /tmp/depot_tools/fetch skia
+
+RUN cd /tmp/skia/skia \
+  && python tools/git-sync-deps \
+  && ./bin/fetch-gn
+
+# PathKit should be in /tmp/skia/skia/out/pathkit/
+RUN /tmp/skia/skia/modules/pathkit/compile.sh
+
+# CanvasKit should be in /tmp/skia/skia/out/canvaskit_wasm
+RUN /tmp/skia/skia/experimental/canvaskit/compile.sh

infra/pathkit/docker/Makefile

@@ -8,6 +8,8 @@ publish_emsdk_base:
 	docker build --no-cache -t emsdk-base ./emsdk-base/
 	docker tag emsdk-base gcr.io/skia-public/emsdk-release:${EMSDK_VERSION}
 	docker push gcr.io/skia-public/emsdk-release:${EMSDK_VERSION}
+	docker tag emsdk-base gcr.io/skia-public/emsdk-release:prod
+	docker push gcr.io/skia-public/emsdk-release:prod
 
 publish_karma_chrome_tests:
 	docker build --no-cache -t karma-chrome-tests ./karma-chrome-tests/