configure option to disable building unit tests

rational: building for release takes a lot of time and we
neither package, nor run (most of) these unit tests when
we make packages.
CI runs all of these tests before merging PRs, so risk is low,
if we do not run the few build-time unit tests when we package.

make -j12
--enable-tests (default): 3m 18s
--disable-test: 1m 9s
3x faster...

Signed-off-by: Andras Timar <andras.timar@collabora.com>
Change-Id: I4edd98af55748432e30c65c4c910e72c0221272a

configure.ac

@@ -373,6 +373,10 @@ AC_ARG_ENABLE([cypress],
             AS_HELP_STRING([--enable-cypress],
                            [Enable cypress tests.]))
 
+AC_ARG_ENABLE([tests],
+            AS_HELP_STRING([--disable-tests],
+                           [Do not build and run unit tests.]))
+
 AC_ARG_WITH([help-url],
             AS_HELP_STRING([--with-help-url=<url>],
                 [Set the base URL of the online help. Default is https://help.collaboraoffice.com/help.html?])
@@ -1483,6 +1487,15 @@ else
 fi
 AM_CONDITIONAL([ENABLE_CYPRESS], [$ENABLE_CYPRESS])
 
+ENABLE_TESTS=true
+if test "$enable_tests" = "no"; then
+    ENABLE_TESTS=false
+else
+    ENABLE_TESTS=true
+fi
+AM_CONDITIONAL([ENABLE_TESTS], [$ENABLE_TESTS])
+
+
 AC_MSG_CHECKING([for URL of online help])
 if test -n "$with_help_url" -a "$with_help_url" != "no"; then
     HELP_URL="$with_help_url"

coolwsd.spec.in

@@ -30,6 +30,7 @@ Obsoletes: loolwsd collaboraoffice-dict-br collaboraoffice-dict-et collaboraoffi
 	--with-lokit-path=bundled/include \
 	--with-lo-path=/opt/collaboraoffice \
 	--disable-setcap \
+	--disable-tests \
 %if 0%{?config_options:1}
 	%{config_options}
 %endif

debian/rules

@@ -5,7 +5,7 @@ DPKG_EXPORT_BUILDFLAGS = 1
 
 include /usr/share/dpkg/default.mk
 
-CONFFLAGS = --enable-silent-rules --prefix=/usr --localstatedir=/var --sysconfdir=/etc --with-lokit-path=`pwd`/bundled/include --disable-setcap $(CONFIG_OPTIONS)
+CONFFLAGS = --enable-silent-rules --prefix=/usr --localstatedir=/var --sysconfdir=/etc --with-lokit-path=`pwd`/bundled/include --disable-setcap --disable-tests $(CONFIG_OPTIONS)
 
 # main packaging script based on dh7 syntax
 %:

test/Makefile.am

@@ -1,3 +1,5 @@
+if ENABLE_TESTS
+
 # Cap threadpools to 4 threads.
 export MAX_CONCURRENCY=4
 AUTOMAKE_OPTION = serial-tests
@@ -335,3 +337,4 @@ all-local: unittest
 	@$(CLEANUP_COMMAND)
 
 .PRECIOUS: $(TEST_LOGS)
+endif