[gnome-continuous-yocto/gnomeostree-3.28-rocko: 510/8267] npm: add target_arch flag to npm

[Emmanuele Bassi <ebassi src gnome org>]

commit 899358a586f03daee8568c5d6906a5d992859264
Author: Brendan Le Foll <brendan le foll intel com>
Date:   Tue May 24 12:12:16 2016 +0100

    npm: add target_arch flag to npm
    
    npm takes a target_arch flag which needs to be set to do some gyp compilations
    correctly. It also doesn't use the same mapping as OE for target arch so a
    small function is required to make the mapping work. Function is taken from
    meta-nodejs
    
    (From OE-Core rev: f402225311e4bbb62ba9781ab274420abaac0fb4)
    
    Signed-off-by: Brendan Le Foll <brendan le foll intel com>
    Signed-off-by: Ross Burton <ross burton intel com>
    Signed-off-by: Richard Purdie <richard purdie linuxfoundation org>

 meta/classes/npm.bbclass |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/meta/classes/npm.bbclass b/meta/classes/npm.bbclass
index 9843e87..d0d3d8f 100644
--- a/meta/classes/npm.bbclass
+++ b/meta/classes/npm.bbclass
@@ -3,6 +3,17 @@ S = "${WORKDIR}/npmpkg"
 
 NPM_INSTALLDIR = "${D}${libdir}/node_modules/${PN}"
 
+# function maps arch names to npm arch names
+def npm_oe_arch_map(target_arch, d):
+    import re
+    if   re.match('p(pc|owerpc)(|64)', target_arch): return 'ppc'
+    elif re.match('i.86$', target_arch): return 'ia32'
+    elif re.match('x86_64$', target_arch): return 'x64'
+    elif re.match('arm64$', target_arch): return 'arm'
+    return target_arch
+
+NPM_ARCH ?= "${@npm_oe_arch_map(d.getVar('TARGET_ARCH', True), d)}"
+
 npm_do_compile() {
        # changing the home directory to the working directory, the .npmrc will
        # be created in this directory
@@ -12,7 +23,7 @@ npm_do_compile() {
        # clear cache before every build
        npm cache clear
        # Install pkg into ${S} without going to the registry
-       npm --arch=${TARGET_ARCH} --production --no-registry install
+       npm --arch=${NPM_ARCH} --target_arch=${NPM_ARCH} --production --no-registry install
 }
 
 npm_do_install() {