devtool: add: delete externalsrc files on npm recipe do_install

The npm class just installs whatever is in ${S}; if you're using
externalsrc in conjunction with it the symlinks (oe-workdir and oe-logs
by default) plus singletask.lock will end up in the final package, which
isn't really right. Introduce a variable so we know the path the files
will be installed into within npm.bbclass, and append to do_install
within the workspace bbappend to delete the files.

(From OE-Core rev: 766845e06db9d7d595e836ea1364c16fa132a413)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/npm.bbclass

@@ -1,6 +1,8 @@
 DEPENDS_prepend = "nodejs-native "
 S = "${WORKDIR}/npmpkg"
 
+NPM_INSTALLDIR = "${D}${libdir}/node_modules/${PN}"
+
 npm_do_compile() {
 	# changing the home directory to the working directory, the .npmrc will
 	# be created in this directory
@@ -14,8 +16,8 @@ npm_do_compile() {
 }
 
 npm_do_install() {
-	mkdir -p ${D}${libdir}/node_modules/${PN}/
-	cp -a ${S}/* ${D}${libdir}/node_modules/${PN}/ --no-preserve=ownership
+	mkdir -p ${NPM_INSTALLDIR}/
+	cp -a ${S}/* ${NPM_INSTALLDIR}/ --no-preserve=ownership
 }
 
 python populate_packages_prepend () {

scripts/lib/devtool/standard.py

@@ -238,6 +238,17 @@ def add(args, config, basepath, workspace):
             f.write('    rm -f ${D}/singletask.lock\n')
             f.write('}\n')
 
+        if bb.data.inherits_class('npm', rd):
+            f.write('do_install_append() {\n')
+            f.write('    # Remove files added to source dir by devtool/externalsrc\n')
+            f.write('    rm -f ${NPM_INSTALLDIR}/singletask.lock\n')
+            f.write('    rm -rf ${NPM_INSTALLDIR}/.git\n')
+            f.write('    rm -rf ${NPM_INSTALLDIR}/oe-local-files\n')
+            f.write('    for symlink in ${EXTERNALSRC_SYMLINKS} ; do\n')
+            f.write('        rm -f ${NPM_INSTALLDIR}/${symlink%%:*}\n')
+            f.write('    done\n')
+            f.write('}\n')
+
     _add_md5(config, recipename, appendfile)
 
     logger.info('Recipe %s has been automatically created; further editing may be required to make it fully functional' % recipefile)