[nongnu] externals/caml 1d6cd46 196/197: Add make target for opam release

[Stefan Monnier]

branch: externals/caml
commit 1d6cd46e3e862dbb3dc20c5c78da892cf0794546
Author: Christophe Troestler <Christophe.Troestler@umons.ac.be>
Commit: Christophe Troestler <Christophe.Troestler@umons.ac.be>

    Add make target for opam release
---
 .gitignore |  2 ++
 Makefile   | 33 +++++++++++++++++++++++++++++----
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2dd0c2c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+caml-mode-*
+caml-mode.*/
diff --git a/Makefile b/Makefile
index e3b2289..5f12f22 100644
--- a/Makefile
+++ b/Makefile
@@ -12,16 +12,21 @@
 #*                                                                        *
 #**************************************************************************
 
-ROOTDIR = ..
-
-include $(ROOTDIR)/Makefile.config
-include $(ROOTDIR)/Makefile.common
+VERSION = $(shell grep "^version" caml-mode.opam \
+       | sed -e 's/version: *"\([^"]*\)"/\1/')
+DESCRIPTION = $(shell grep ';;; caml.el ---' caml.el \
+       | sed 's/[^-]*--- *\(.*\)/\1/')
+DIST_DIR = caml-mode-$(VERSION)
+OPAM_DIR = caml-mode.$(VERSION)
+TARBALL = caml-mode-$(VERSION).tgz
 
 # Files to install
 FILES= caml-font.el caml-hilit.el caml.el camldebug.el \
        inf-caml.el caml-compat.el caml-help.el caml-types.el \
        caml-xemacs.el caml-emacs.el
 
+DIST_FILES = $(FILES) Makefile README* COPYING* CHANGES.md ocamltags.in
+
 # Where to install. If empty, automatically determined.
 #EMACSDIR=
 
@@ -79,9 +84,29 @@ ocamltags:   ocamltags.in
 install-ocamltags: ocamltags
        $(INSTALL_DATA) ocamltags $(SCRIPTDIR)/ocamltags
 
+# OPAM
+.PHONY: opam
+opam: $(TARBALL)
+       mkdir -p $(OPAM_DIR)
+       cp -a caml-mode.opam $(OPAM_DIR)/opam
+       echo "url {" >> $(OPAM_DIR)/opam
+       echo "  src: 
\"`pwd`/https://github.com/ocaml/caml-mode/releases/download/$(VERSION)/$(TARBALL)\""
 >> $(OPAM_DIR)/opam
+       echo "  checksum: \"md5=`md5sum $(TARBALL) | cut -d ' ' -f 1`\"" \
+         >> $(OPAM_DIR)/opam
+       echo "}" >> $(OPAM_DIR)/opam
+
+$(TARBALL): $(DIST_FILES)
+       mkdir -p $(DIST_DIR)
+       for f in $(DIST_FILES); do cp $$f $(DIST_DIR); done
+       echo "(define-package \"caml\" \"$(VERSION)\" \"$(DESCRIPTION)\" \
+               )" > $(DIST_DIR)/caml-pkg.el
+       tar acvf $@ $(DIST_DIR)
+       $(RM) -rf $(DIST_DIR)
+
 # This is for testing purposes
 compile-only:
        $(EMACS) --batch --eval '$(COMPILECMD)'
 
 clean:
        rm -f ocamltags *~ \#*# *.elc
+       $(RM) -r $(TARBALL) $(OPAM_DIR)