[BUILD] centralize version and date into one file for each

The version does not appear anymore in the Makefiles nor in
the include files. It was a nightmare to maintain. Now there
is a VERSION file which contains the major version, a VERDATE
file which contains the date for this version and a SUBVERS
file which may contain a sub-version.

A "make version" target has been added to all makefiles to
check the version. The GNU Makefile also has an update-version
target to update those files. This should never be used.

It is still possible to override those values by specifying
them in the equivalent make variables. By default, the GNU
makefile tries to detect a GIT repository and always uses the
version and date from the current repository. This can be
disabled by setting IGNOREGIT to a non-void value.

Author: wtarreau

Makefile

@@ -113,19 +113,24 @@ DEFINE = -DTPROXY
 # Now let's determine the version, sub-version and release date.
 # If we're in the GIT tree, we can use the last commit's version and date.
 ifeq ($(IGNOREGIT),)
-VERSION := $(shell [ -d .git/. ] && ref=`git-describe --tags 2>/dev/null` && ref=$${ref%-g*} && echo "$${ref\#v}" )
-endif
-
+VERSION := $(shell [ -d .git/. ] && ref=`(git-describe --tags) 2>/dev/null` && ref=$${ref%-g*} && echo "$${ref\#v}")
 ifneq ($(VERSION),)
 # OK git is there and works.
 SUBVERS := $(shell comms=`git-log --no-merges v$(VERSION).. 2>/dev/null |grep -c ^commit `; [ $$comms -gt 0 ] && echo "-$$comms" )
 VERDATE := $(shell date +%Y/%m/%d -d "`git-log HEAD^.. 2>/dev/null | grep -m 1 ^Date: | cut -f2- -d: | cut -f1 -d+`" )
-else
+endif
+endif
+
 # Otherwise, use the hard-coded version of last tag, number of changes
 # since last tag, and release date.
-VERSION := 1.3.12
-SUBVERS := 
-VERDATE := 2007/06/17
+ifeq ($(VERSION),)
+VERSION := $(shell cat VERSION 2>/dev/null || touch VERSION)
+endif
+ifeq ($(SUBVERS),)
+SUBVERS := $(shell cat SUBVERS 2>/dev/null || touch SUBVERS)
+endif
+ifeq ($(VERDATE),)
+VERDATE := $(shell cat VERDATE 2>/dev/null || touch VERDATE)
 endif
 
 #### build options
@@ -256,3 +261,19 @@ tar:	clean
 
 git-tar: clean
 	git-tar-tree HEAD haproxy-$(VERSION) | gzip -9 > haproxy-$(VERSION)$(SUBVERS).tar.gz
+
+version:
+	@echo "VERSION: $(VERSION)"
+	@echo "SUBVERS: $(SUBVERS)"
+	@echo "VERDATE: $(VERDATE)"
+
+# never use this one if you don't know what it is used for.
+update-version:
+	@echo "Ready to update the following versions :"
+	@echo "VERSION: $(VERSION)"
+	@echo "SUBVERS: $(SUBVERS)"
+	@echo "VERDATE: $(VERDATE)"
+	@echo "Press [ENTER] to continue or Ctrl-C to abort now.";read
+	echo "$(VERSION)" > VERSION
+	echo "$(SUBVERS)" > SUBVERS
+	echo "$(VERDATE)" > VERDATE

Makefile.bsd

@@ -7,8 +7,6 @@
 #   make TARGET=freebsd CPU=i686 DLMALLOC_SRC=/usr/local/src/dlmalloc.c \
 #        OPT_OBJS=src/dlmalloc.o
 
-VERSION := 1.3.12
-
 # Select target OS. TARGET must match a system for which COPTS and LIBS are
 # correctly defined below.
 TARGET = openbsd
@@ -87,10 +85,17 @@ TARGET_OPTS=$(COPTS.$(TARGET))
 REGEX_OPTS=$(COPTS.$(REGEX))
 CPU_OPTS=$(COPTS.$(CPU))
 
-COPTS=-Iinclude $(ADDINC) $(CPU_OPTS) $(TARGET_OPTS) $(REGEX_OPTS) $(SMALL_OPTS) $(DEFINE)
-LIBS=$(LIBS.$(TARGET)) $(LIBS.$(REGEX)) $(ADDLIB)
+VERSION != cat VERSION 2>/dev/null || touch VERSION
+SUBVERS != cat SUBVERS 2>/dev/null || touch SUBVERS
+VERDATE != cat VERDATE 2>/dev/null || touch VERDATE
+
+VER_OPTS := -DCONFIG_HAPROXY_VERSION=\"$(VERSION)$(SUBVERS)\" \
+            -DCONFIG_HAPROXY_DATE=\"$(VERDATE)\"
 
-CFLAGS = -Wall $(COPTS) $(DEBUG)
+COPTS   = -Iinclude $(ADDINC) $(CPU_OPTS) $(TARGET_OPTS) $(REGEX_OPTS) \
+          $(SMALL_OPTS) $(VER_OPTS) $(DEFINE)
+LIBS    = $(LIBS.$(TARGET)) $(LIBS.$(REGEX)) $(ADDLIB)
+CFLAGS  = -Wall $(COPTS) $(DEBUG)
 LDFLAGS = -g
 
 OBJS = src/haproxy.o src/sessionhash.o src/base64.o \
@@ -118,3 +123,8 @@ clean:
 	rm -f *.[oas] src/*.[oas] core haproxy test
 	for dir in . src include/* doc; do rm -f $$dir/*~ $$dir/*.rej;done
 	rm -f haproxy-$(VERSION).tar.gz haproxy-$(VERSION) nohup.out gmon.out
+
+version:
+	@echo "VERSION: $(VERSION)"
+	@echo "SUBVERS: $(SUBVERS)"
+	@echo "VERDATE: $(VERDATE)"

Makefile.osx

@@ -7,8 +7,6 @@
 #   make DLMALLOC_SRC=/usr/local/src/dlmalloc.c \
 #        OPT_OBJS=src/dlmalloc.o
 
-VERSION := 1.3.12
-
 # Select target OS. TARGET must match a system for which COPTS and LIBS are
 # correctly defined below.
 TARGET = generic
@@ -84,10 +82,17 @@ TARGET_OPTS=$(COPTS.$(TARGET))
 REGEX_OPTS=$(COPTS.$(REGEX))
 CPU_OPTS=$(COPTS.$(CPU))
 
-COPTS=-Iinclude $(ADDINC) $(CPU_OPTS) $(TARGET_OPTS) $(REGEX_OPTS) $(SMALL_OPTS) $(DEFINE)
-LIBS=$(LIBS.$(TARGET)) $(LIBS.$(REGEX)) $(ADDLIB)
+VERSION != cat VERSION 2>/dev/null || touch VERSION
+SUBVERS != cat SUBVERS 2>/dev/null || touch SUBVERS
+VERDATE != cat VERDATE 2>/dev/null || touch VERDATE
+
+VER_OPTS := -DCONFIG_HAPROXY_VERSION=\"$(VERSION)$(SUBVERS)\" \
+            -DCONFIG_HAPROXY_DATE=\"$(VERDATE)\"
 
-CFLAGS = -Wall $(COPTS) $(DEBUG) -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch i386
+COPTS   = -Iinclude $(ADDINC) $(CPU_OPTS) $(TARGET_OPTS) $(REGEX_OPTS) \
+          $(SMALL_OPTS) $(VER_OPTS) $(DEFINE)
+LIBS    = $(LIBS.$(TARGET)) $(LIBS.$(REGEX)) $(ADDLIB)
+CFLAGS  = -Wall $(COPTS) $(DEBUG) -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch i386
 LDFLAGS = -g -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch ppc -arch i386
 
 OBJS = src/haproxy.o src/sessionhash.o src/base64.o \
@@ -115,3 +120,8 @@ clean:
 	rm -f *.[oas] src/*.[oas] core haproxy test
 	for dir in . src include/* doc; do rm -f $$dir/*~ $$dir/*.rej;done
 	rm -f haproxy-$(VERSION).tar.gz haproxy-$(VERSION) nohup.out gmon.out
+
+version:
+	@echo "VERSION: $(VERSION)"
+	@echo "SUBVERS: $(SUBVERS)"
+	@echo "VERDATE: $(VERDATE)"

SUBVERS

@@ -0,0 +1 @@
+

VERDATE

@@ -0,0 +1 @@
+2007/06/17

VERSION

@@ -0,0 +1 @@
+1.3.12

include/common/version.h

@@ -57,13 +57,13 @@
 #ifdef CONFIG_HAPROXY_VERSION
 #define HAPROXY_VERSION CONFIG_HAPROXY_VERSION
 #else
-#define HAPROXY_VERSION "1.3.12"
+#error "Must define CONFIG_HAPROXY_VERSION"
 #endif
 
 #ifdef CONFIG_HAPROXY_DATE
 #define HAPROXY_DATE    CONFIG_HAPROXY_DATE
 #else
-#define HAPROXY_DATE    "2007/06/17"
+#error "Must define CONFIG_HAPROXY_DATE"
 #endif
 
 #endif /* _COMMON_VERSION_H */