build: add tar-headers target for headers-only tar

to replace the full src download by node-gyp, using the proper format
instead of the full source format

PR-URL: https://github.com/nodejs/io.js/pull/1975
Reviewed-By: William Blankenship <william.jblankenship@gmail.com>
Reviewed-By: Johan Bergström <bugs@bergstroem.nu>

Makefile

@@ -340,6 +340,29 @@ doc-upload: tar
 	scp -r out/doc/ $(STAGINGSERVER):staging/$(DISTTYPEDIR)/$(FULLVERSION)/
 	ssh $(STAGINGSERVER) "touch staging/$(DISTTYPEDIR)/$(FULLVERSION)/doc.done"
 
+$(TARBALL)-headers: config.gypi release-only
+	$(PYTHON) ./configure --prefix=/ --dest-cpu=$(DESTCPU) --tag=$(TAG) $(CONFIG_FLAGS)
+	HEADERS_ONLY=1 $(PYTHON) tools/install.py install '$(TARNAME)' '$(PREFIX)'
+	find $(TARNAME)/ -type l | xargs rm # annoying on windows
+	tar -cf $(TARNAME)-headers.tar $(TARNAME)
+	rm -rf $(TARNAME)
+	gzip -c -f -9 $(TARNAME)-headers.tar > $(TARNAME)-headers.tar.gz
+ifeq ($(XZ), 0)
+	xz -c -f -$(XZ_COMPRESSION) $(TARNAME)-headers.tar > $(TARNAME)-headers.tar.xz
+endif
+	rm $(TARNAME)-headers.tar
+
+tar-headers: $(TARBALL)-headers
+
+tar-headers-upload: tar-headers
+	ssh $(STAGINGSERVER) "mkdir -p staging/$(DISTTYPEDIR)/$(FULLVERSION)"
+	scp -p $(TARNAME)-headers.tar.gz $(STAGINGSERVER):staging/$(DISTTYPEDIR)/$(FULLVERSION)/$(TARNAME)-headers.tar.gz
+	ssh $(STAGINGSERVER) "touch staging/$(DISTTYPEDIR)/$(FULLVERSION)/$(TARNAME)-headers.tar.gz.done"
+ifeq ($(XZ), 0)
+	scp -p $(TARNAME)-headers.tar.xz $(STAGINGSERVER):staging/$(DISTTYPEDIR)/$(FULLVERSION)/$(TARNAME)-headers.tar.xz
+	ssh $(STAGINGSERVER) "touch staging/$(DISTTYPEDIR)/$(FULLVERSION)/$(TARNAME)-headers.tar.xz.done"
+endif
+
 $(BINARYTAR): release-only
 	rm -rf $(BINARYNAME)
 	rm -rf out/deps out/Release

tools/install.py

@@ -156,6 +156,9 @@ def files(action):
 
   if 'true' == variables.get('node_install_npm'): npm_files(action)
 
+  headers(action)
+
+def headers(action):
   action([
     'common.gypi',
     'config.gypi',
@@ -178,7 +181,6 @@ def files(action):
     subdir_files('deps/openssl/config/archs', 'include/node/openssl/archs', action)
     action(['deps/openssl/config/opensslconf.h'], 'include/node/openssl/')
 
-
   if 'false' == variables.get('node_shared_zlib'):
     action([
       'deps/zlib/zconf.h',
@@ -207,8 +209,14 @@ def run(args):
   install_path = dst_dir + node_prefix + '/'
 
   cmd = args[1] if len(args) > 1 else 'install'
-  if cmd == 'install': return files(install)
-  if cmd == 'uninstall': return files(uninstall)
+
+  if os.environ.get('HEADERS_ONLY'):
+    if cmd == 'install': return headers(install)
+    if cmd == 'uninstall': return headers(uninstall)
+  else:
+    if cmd == 'install': return files(install)
+    if cmd == 'uninstall': return files(uninstall)
+
   raise RuntimeError('Bad command: %s\n' % cmd)
 
 if __name__ == '__main__':