Move gh-pages management stuff to mk/gh-pages.mk

1 files changed, 53 insertions, 0 deletions

diff --git a/mk/gh-pages.mk b/mk/gh-pages.mk
new file mode 100644
index 0000000..cfa67c5
--- /dev/null
+++ b/mk/gh-pages.mk
@@ -0,0 +1,53 @@
+
+# gh-pages Branch Management ###################################################
+
+gh-pages-dir := $(build-dir)/gh-pages
+
+ifeq "$(git-cmd)" ""
+$(call strict-error,"unable to locate git")
+else
+
+# figure out the url of the origin that the current work repo uses
+remote-url := $(shell $(git-cmd) config remote.origin.url)
+
+endif
+
+
+# Pull in the gh-pages directory.
+.PHONY: pull-gh-pages
+ifeq "$(pull)" "0"
+pull-gh-pages:
+else
+pull-gh-pages: | $(gh-pages-dir)
+	$(call label,PULL       $(call drop-prefix,$(gh-pages-dir)))\
+	  (  cd $(gh-pages-dir) \
+	  && $(git-cmd) pull $(if $(Q),-q) )
+endif
+
+
+# checkout the gh-pages branch in a temp repo under the build tree
+$(gh-pages-dir): | $(build-dir)
+	$(call label,CLONE      $(call drop-prefix,$@))\
+	  (  $(git-cmd) clone $(if $(Q),-q) $(topdir) $@ \
+	  && cd $(gh-pages-dir) \
+	  && $(git-cmd) remote set-url origin $(remote-url) \
+	  && $(git-cmd) fetch $(if $(Q),-q) origin gh-pages \
+	  && $(git-cmd) checkout $(if $(Q),-q) gh-pages )
+
+
+# Generate a commit in the gh-pages-dir, after adding some files that may have
+# changed.
+commit = $(call label,COMMIT     $(call drop-prefix,$(gh-pages-dir)))\
+	  (  cd $(gh-pages-dir) \
+	  && if test -n "`$(git-cmd) status -s`"; then \
+	        $(git-cmd) add $1 \
+	     && $(git-cmd) commit $(if $(Q),-q) -m $2 \
+	     ; fi )
+
+
+
+# push to the gh-pages branch from the temp repo
+deploy: | pull-gh-pages
+	$(call label,DEPLOY)\
+	  (  cd $(gh-pages-dir) \
+	  && git push $(if $(Q),-q) origin gh-pages )