From db53602d19e2d9c42400d7734a21843ddc47577b Mon Sep 17 00:00:00 2001
From: "Eugeniy E. Mikhailov" <evgmik@gmail.com>
Date: Fri, 11 Jun 2021 14:36:48 -0400
Subject: added version generation

---
 Makefile         | 13 +++++++++++--
 version.lua      |  2 ++
 version.template |  2 ++
 3 files changed, 15 insertions(+), 2 deletions(-)
 create mode 100644 version.lua
 create mode 100644 version.template

diff --git a/Makefile b/Makefile
index 5dcd4f6..ddfa42c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,8 @@
 # -*- make -*-
 # (C) 2016 by Eugeniy Mikhailov, <evgmik@gmail.com>
 
+TOPDIR=.
+
 include ./local.mk
 
 # this file is a bit complex since it tries to be general enough to use
@@ -28,7 +30,7 @@ endif
 
 UPLOAD_STAMPS = .upload_stamps
 
-lua_files = $(wildcard *.lua)
+lua_files = $(wildcard *.lua) version.lua
 httpserver_lua_files = $(wildcard nodemcu-httpserver/httpserver*.lua)
 html_files = $(wildcard http/*)
 
@@ -36,7 +38,7 @@ lua_files_upload_stamps = $(lua_files:%=$(UPLOAD_STAMPS)/%.uploaded)
 httpserver_files_upload_stamps = $(httpserver_lua_files:%=$(UPLOAD_STAMPS)/%.uploaded)
 html_files_upload_stamps = $(html_files:%=$(UPLOAD_STAMPS)/%.uploaded)
 
-upload: $(UPLOAD_STAMPS) $(html_files_upload_stamps) $(lua_files_upload_stamps) $(httpserver_files_upload_stamps)
+upload: $(UPLOAD_STAMPS) $(html_files_upload_stamps) version $(lua_files_upload_stamps) $(httpserver_files_upload_stamps)
 
 $(UPLOAD_STAMPS):
 	mkdir -p $(UPLOAD_STAMPS)
@@ -65,6 +67,13 @@ else
 	($(upload_cmd) --src $< --dest $<) && touch $@
 endif
 
+GIT_VERSION:="$(shell git describe --tags --always) ($(shell git log --pretty=format:%cd --date=short -n1), branch $(shell [ -f $(TOPDIR)/.git/HEAD ] && sed 's/ref: refs\/heads\/\(.*\)/\\\\\\"\1\\\\\\"/g' $(TOPDIR)/.git/HEAD || echo 'unknown'))"
+VERSION:=$(shell git describe --tags --abbrev=0)
+
+version: version.lua
+
+version.lua: version.template $(lua_files%version.lua%)
+		sed s/__VERSION__/{$(GIT_VERSION)}/ < $< > $@
 
 term:
 	$(term_cmd)
diff --git a/version.lua b/version.lua
new file mode 100644
index 0000000..5fa212c
--- /dev/null
+++ b/version.lua
@@ -0,0 +1,2 @@
+print("{v1.0-home-cooked-binary-25-g5892768 (2021-06-11, branch "binary-speedup")}")
+
diff --git a/version.template b/version.template
new file mode 100644
index 0000000..5a64f5c
--- /dev/null
+++ b/version.template
@@ -0,0 +1,2 @@
+print("__VERSION__")
+
-- 
cgit v1.2.3