nodejs: allow use of system brotli (and make default)

Use system brotli via PACKAGECONFIG by default. So far,
nodejs had been built using its embedded copy of brotli,
which we generally try to avoid, for the known reasons
(independent updates, cve & license checks, etc).

The nodejs patches to enable this have been submitted.
brotli is in meta-oe, so enabling this by default should
not be a problem.

Signed-off-by: André Draszik <andre.draszik@jci.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-devtools/nodejs/nodejs/0001-build-allow-passing-multiple-libs-to-pkg_config.patch

@@ -0,0 +1,41 @@
+From fdaa0e3bef93c5c72a7258b5f1e30718e7d81f9b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <git@andred.net>
+Date: Mon, 2 Mar 2020 12:17:09 +0000
+Subject: [PATCH 1/2] build: allow passing multiple libs to pkg_config
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Sometimes it's necessary to pass multiple library names to pkg-config,
+e.g. the brotli shared libraries can be pulled in with
+    pkg-config libbrotlienc libbrotlidec
+
+Update the code to handle both, strings (as used so far), and lists
+of strings.
+
+Signed-off-by: André Draszik <git@andred.net>
+---
+Upstream-Status: Submitted [https://github.com/nodejs/node/pull/32046]
+ configure.py | 6 +++++-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/configure.py b/configure.py
+index beb08df088..e3f78f2fed 100755
+--- a/configure.py
++++ b/configure.py
+@@ -680,7 +680,11 @@ def pkg_config(pkg):
+   retval = ()
+   for flag in ['--libs-only-l', '--cflags-only-I',
+                '--libs-only-L', '--modversion']:
+-    args += [flag, pkg]
++    args += [flag]
++    if isinstance(pkg, list):
++      args += pkg
++    else:
++      args += [pkg]
+     try:
+       proc = subprocess.Popen(shlex.split(pkg_config) + args,
+                               stdout=subprocess.PIPE)
+-- 
+2.25.0
+

meta-oe/recipes-devtools/nodejs/nodejs/0002-build-allow-use-of-system-installed-brotli.patch

@@ -0,0 +1,66 @@
+From f0f927feee8cb1fb173835d5c3f6beb6bf7d5e54 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Andr=C3=A9=20Draszik?= <git@andred.net>
+Date: Mon, 2 Mar 2020 12:17:35 +0000
+Subject: [PATCH 2/2] build: allow use of system-installed brotli
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+brotli is available as a shared library since 2016, so it makes sense
+to allow its use as a system-installed version.
+
+Some of the infrastructure was in place already (node.gyp and
+node.gypi), but some bits in the configure script here were missing.
+
+Add them, keeping the default as before, to use the bundled version.
+
+Refs: https://github.com/google/brotli/pull/421
+Signed-off-by: André Draszik <git@andred.net>
+---
+Upstream-Status: Submitted [https://github.com/nodejs/node/pull/32046]
+ configure.py | 22 ++++++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+diff --git a/configure.py b/configure.py
+index e3f78f2fed..0190e31b41 100755
+--- a/configure.py
++++ b/configure.py
+@@ -301,6 +301,27 @@ shared_optgroup.add_option('--shared-zlib-libpath',
+     dest='shared_zlib_libpath',
+     help='a directory to search for the shared zlib DLL')
+ 
++shared_optgroup.add_option('--shared-brotli',
++    action='store_true',
++    dest='shared_brotli',
++    help='link to a shared brotli DLL instead of static linking')
++
++shared_optgroup.add_option('--shared-brotli-includes',
++    action='store',
++    dest='shared_brotli_includes',
++    help='directory containing brotli header files')
++
++shared_optgroup.add_option('--shared-brotli-libname',
++    action='store',
++    dest='shared_brotli_libname',
++    default='brotlidec,brotlienc',
++    help='alternative lib name to link to [default: %default]')
++
++shared_optgroup.add_option('--shared-brotli-libpath',
++    action='store',
++    dest='shared_brotli_libpath',
++    help='a directory to search for the shared brotli DLL')
++
+ shared_optgroup.add_option('--shared-cares',
+     action='store_true',
+     dest='shared_cares',
+@@ -1692,6 +1713,7 @@ configure_napi(output)
+ configure_library('zlib', output)
+ configure_library('http_parser', output)
+ configure_library('libuv', output)
++configure_library('brotli', output, pkgname=['libbrotlidec', 'libbrotlienc'])
+ configure_library('cares', output, pkgname='libcares')
+ configure_library('nghttp2', output, pkgname='libnghttp2')
+ configure_v8(output)
+-- 
+2.25.0
+

meta-oe/recipes-devtools/nodejs/nodejs_12.14.1.bb

@@ -20,6 +20,8 @@ SRC_URI = "http://nodejs.org/dist/v${PV}/node-v${PV}.tar.xz \
            file://0003-Install-both-binaries-and-use-libdir.patch \
            file://0004-v8-don-t-override-ARM-CFLAGS.patch \
            file://big-endian.patch \
+           file://0001-build-allow-passing-multiple-libs-to-pkg_config.patch \
+           file://0002-build-allow-use-of-system-installed-brotli.patch \
            "
 SRC_URI_append_class-target = " \
            file://0002-Using-native-binaries.patch \
@@ -51,8 +53,9 @@ ARCHFLAGS_arm = "${@bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', '-
 GYP_DEFINES_append_mipsel = " mips_arch_variant='r1' "
 ARCHFLAGS ?= ""
 
-PACKAGECONFIG ??= "ares icu libuv zlib"
+PACKAGECONFIG ??= "ares brotli icu libuv zlib"
 PACKAGECONFIG[ares] = "--shared-cares,,c-ares"
+PACKAGECONFIG[brotli] = "--shared-brotli,,brotli"
 PACKAGECONFIG[icu] = "--with-intl=system-icu,--without-intl,icu"
 PACKAGECONFIG[libuv] = "--shared-libuv,,libuv"
 PACKAGECONFIG[nghttp2] = "--shared-nghttp2,,nghttp2"
@@ -81,6 +84,8 @@ python do_unpack() {
     shutil.rmtree(d.getVar('S') + '/deps/openssl', True)
     if 'ares' in d.getVar('PACKAGECONFIG'):
         shutil.rmtree(d.getVar('S') + '/deps/cares', True)
+    if 'brotli' in d.getVar('PACKAGECONFIG'):
+        shutil.rmtree(d.getVar('S') + '/deps/brotli', True)
     if 'libuv' in d.getVar('PACKAGECONFIG'):
         shutil.rmtree(d.getVar('S') + '/deps/uv', True)
     if 'nghttp2' in d.getVar('PACKAGECONFIG'):