Adds Syncbase tutorial using Go Client API to website

Added tests, made the tutorial easy to follow (should work by just
copying and pasting the fragments instead of having to manually copy and
paste environment variables and endpoints).

Change-Id: I4856775b6a3c4c08604490d567d18aed22611df5

Author: Shoumik Palkar

Makefile

@@ -89,6 +89,8 @@ tutCleanup     = tutorials/cleanup
 tutWipeSlate   = tutorials/wipe-slate
 tutHello       = tutorials/hello-world
 tutBasics      = tutorials/basics
+tutSyncbaseLocalPersist    = tutorials/syncbase/localPersist
+tutSyncbaseSync  = tutorials/syncbase/sync
 tutPrincipals  = tutorials/security/principals-and-blessings
 tutPermsAuth   = tutorials/security/permissions-authorizer
 tutCaveats1st  = tutorials/security/first-party-caveats
@@ -118,6 +120,8 @@ completer = public/sh/tut-completer
 completerScripts = \
 	$(completer)-hello-world.sh \
 	$(completer)-basics.sh \
+	$(completer)-syncbase-local-persist.sh \
+	$(completer)-syncbase-sync.sh \
 	$(completer)-permissions-authorizer.sh \
 	$(completer)-custom-authorizer.sh \
 	$(completer)-suffix-part1.sh \
@@ -133,7 +137,8 @@ setupScripts = \
 	$(scenario)-b-setup.sh \
 	$(scenario)-c-setup.sh \
 	$(scenario)-d-setup.sh \
-	$(scenario)-e-setup.sh
+	$(scenario)-e-setup.sh \
+	$(scenario)-f-setup.sh
 
 depsCommon = \
 	content/$(tutSetup).md \
@@ -268,6 +273,24 @@ $(completer)-basics.sh: $(depsBasics) | $(MDRIP)
 $(scenario)-b-setup.sh: $(completer)-basics.sh
 	cp $^ $@
 
+depsSyncbaseLocalPersist = $(depsBasics) content/$(tutSyncbaseLocalPersist).md
+.PHONY: test-syncbase-local-persist
+test-syncbase-local-persist: $(depsSyncbaseLocalPersist) | $(MDRIP)
+	$(MDRIP) --subshell test $^
+$(completer)-syncbase-local-persist.sh: $(depsSyncbaseLocalPersist) | $(MDRIP)
+	mkdir -p $(@D)
+	$(MDRIP) --preambled 0 completer $^ > $@
+$(scenario)-f-setup.sh: $(completer)-syncbase-local-persist.sh
+	cp $^ $@
+
+depsSyncbaseSync = $(depsSyncbaseLocalPersist) content/$(tutSyncbaseSync).md
+.PHONY: test-syncbase-sync
+test-syncbase-sync: $(depsSyncbaseSync) | $(MDRIP)
+	$(MDRIP) --subshell test $^
+$(completer)-syncbase-sync.sh: $(depsSyncbaseSync) | $(MDRIP)
+	mkdir -p $(@D)
+	$(MDRIP) --preambled 0 completer $^ > $@
+
 depsPrincipals = $(depsBasics) content/$(tutPrincipals).md
 .PHONY: test-principals
 test-principals: $(depsPrincipals) | $(MDRIP)
@@ -378,7 +401,12 @@ depsOneBigCoreTutorialTest = \
 	content/$(tutPrincipals).md \
 	content/$(tutPermsAuth).md \
 	content/$(tutSuffixPart1).md \
-	content/$(tutSuffixPart2).md
+	content/$(tutSuffixPart2).md \
+	content/$(tutWipeSlate).md \
+	content/$(tutBasics).md \
+	content/$(tutSyncbaseLocalPersist).md \
+	content/$(tutSyncbaseSync).md \
+
 
 # An ordering that lets us test all the Java tutorials faster than running the
 # individual tests in sequence.
@@ -470,4 +498,4 @@ test-tutorials-no-install: build
 # Change this to the desired version before running the target.
 SYNCBASE_ANDROID_VERSION=0.1.7
 upgrade-syncbase-android:
-	find content/syncbase -type f -exec sed -i "s/\(compile 'io.v:syncbase:\)\(.*\)'/\1$(SYNCBASE_ANDROID_VERSION)'/g" {} \;
+	find content/syncbase -type f -exec sed -i "s/\(compile 'io.v:syncbase:\)\(.*\)'/\1$(SYNCBASE_ANDROID_VERSION)'/g" {} \;

content/tutorials/index.md

@@ -12,6 +12,10 @@ title: Tutorials
   {{# content.tutorials.naming }}
   * [{{ title }}]({{ url }})
   {{/ content.tutorials.naming }}
+* [Syncbase Basics](/tutorials/syncbase/)
+  {{# content.tutorials.syncbase }}
+  * [{{ title }}]({{ url }})
+  {{/ content.tutorials.syncbase }}
 * [Java](/tutorials/java/)
   {{# content.tutorials.java }}
   * [{{ title }}]({{ url }})

content/tutorials/syncbase/index.md

@@ -0,0 +1,29 @@
+= yaml =
+title: Overview
+layout: tutorial
+sort: 30
+toc: false
+= yaml =
+
+Syncbase provides a database that supports peer-to-peer synchronization built on
+top of Vanadium. It works even when devices are not connected to the Internet.
+
+In the following tutorials, we will modify the code from the [basics tutorial]
+so it runs over Syncbase. This will allow us to synchronize our set of fortunes
+across multiple devices.
+
+* [Persisting to Local Storage]<br> _Wherein_ fortunes are stored in a local
+  Syncbase.
+
+* [Exchanging Data]<br> _Wherein_ devices exchange their local data with each
+  other.
+
+These tutorials use a low level Syncbase API. The [Syncbase tutorial]
+complements this tutorial and uses a higher level API for mobile development
+which facilitates many of the patterns illustrated here.
+
+[basics tutorial]: /tutorials/basics.html
+[Syncbase tutorial]: /syncbase/tutorial/introduction.html
+[Persisting to Local Storage]: /tutorials/syncbase/localPersist.html
+[Exchanging Data]: /tutorials/syncbase/sync.html
+