From 8aaf7aaf797781f30f6154740729363c1bb36c4d Mon Sep 17 00:00:00 2001
From: Joris Vink <joris@coders.se>
Date: Tue, 19 Jun 2018 19:05:55 +0200
Subject: [PATCH] Alter where the version number comes from.

Now if we are a git repo we fetch the branch name and
commitid to build the version string. If there is no
git repo we'll look at the RELEASE file.
---
 .gitignore          |  1 +
 Makefile            | 26 ++++++++++++++++++++++----
 include/kore/kore.h |  6 +-----
 kodev/Makefile      |  2 +-
 src/http.c          |  3 +--
 src/kore.c          |  3 +--
 6 files changed, 27 insertions(+), 14 deletions(-)

diff --git a/.gitignore b/.gitignore
index e50bb37..64c8e2b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ obj
 .lvimrc
 kodev/kodev
 kore.features
+src/version.c
diff --git a/Makefile b/Makefile
index 1cdb38b..124dc9d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # Kore Makefile
 
-CC?=gcc
+CC?=cc
 PREFIX?=/usr/local
 OBJDIR?=obj
 KORE=kore
@@ -10,10 +10,12 @@ MAN_DIR=$(PREFIX)/share/man
 SHARE_DIR=$(PREFIX)/share/kore
 INCLUDE_DIR=$(PREFIX)/include/kore
 
+VERSION=src/version.c
+
 S_SRC=	src/kore.c src/buf.c src/config.c src/connection.c \
 	src/domain.c src/mem.c src/msg.c src/module.c src/net.c \
 	src/pool.c src/runtime.c src/timer.c src/utils.c src/worker.c \
-	src/keymgr.c
+	src/keymgr.c $(VERSION)
 
 FEATURES=
 FEATURES_INC=
@@ -114,7 +116,22 @@ endif
 
 S_OBJS=	$(S_SRC:src/%.c=$(OBJDIR)/%.o)
 
-all: $(KORE) $(KODEV)
+all: $(VERSION) $(KORE) $(KODEV)
+
+$(VERSION): force
+	@if [ -d .git ]; then \
+		GIT_REVISION=`git rev-parse --short=8 HEAD`; \
+		GIT_BRANCH=`git rev-parse --abbrev-ref HEAD`; \
+		rm -f $(VERSION); \
+		printf "const char *kore_version = \"%s-%s\";\n" \
+		    $$GIT_BRANCH $$GIT_REVISION > $(VERSION); \
+	elif [ -f RELEASE ]; then \
+		printf "const char *kore_version = \"%s\";\n" \
+		    `cat RELEASE` > $(VERSION); \
+	else \
+		echo "No version information found (no .git or RELEASE)"; \
+		exit 1; \
+	fi
 
 $(KODEV):
 	$(MAKE) -C kodev
@@ -151,8 +168,9 @@ $(OBJDIR)/%.o: src/%.c
 	$(CC) $(CFLAGS) -c $< -o $@
 
 clean:
+	rm -f $(VERSION); \
 	find . -type f -name \*.o -exec rm {} \;
 	rm -rf $(KORE) $(OBJDIR) kore.features
 	$(MAKE) -C kodev clean
 
-.PHONY: all clean
+.PHONY: all clean force
diff --git a/include/kore/kore.h b/include/kore/kore.h
index b4c980e..d4b390a 100644
--- a/include/kore/kore.h
+++ b/include/kore/kore.h
@@ -57,11 +57,6 @@ extern int daemon(int, int);
 #define KORE_RESULT_OK		1
 #define KORE_RESULT_RETRY	2
 
-#define KORE_VERSION_MAJOR	3
-#define KORE_VERSION_MINOR	0
-#define KORE_VERSION_PATCH	0
-#define KORE_VERSION_STATE	"devel"
-
 #define KORE_TLS_VERSION_1_2	0
 #define KORE_TLS_VERSION_1_0	1
 #define KORE_TLS_VERSION_BOTH	2
@@ -473,6 +468,7 @@ extern char	*rand_file;
 extern u_int8_t			nlisteners;
 extern u_int16_t		cpu_count;
 extern u_int8_t			worker_count;
+extern const char		*kore_version;
 extern u_int8_t			worker_set_affinity;
 extern u_int32_t		worker_rlimit_nofiles;
 extern u_int32_t		worker_max_connections;
diff --git a/kodev/Makefile b/kodev/Makefile
index 1d566b1..e1b7961 100644
--- a/kodev/Makefile
+++ b/kodev/Makefile
@@ -1,6 +1,6 @@
 # kodev Makefile
 
-CC?=gcc
+CC?=cc
 PREFIX?=/usr/local
 OBJDIR?=obj
 KODEV=kodev
diff --git a/src/http.c b/src/http.c
index eb84a1c..76bb761 100644
--- a/src/http.c
+++ b/src/http.c
@@ -95,8 +95,7 @@ http_init(void)
 	ckhdr_buf = kore_buf_alloc(HTTP_COOKIE_BUFSIZE);
 
 	l = snprintf(http_version, sizeof(http_version),
-	    "server: kore (%d.%d.%d-%s)\r\n", KORE_VERSION_MAJOR,
-	    KORE_VERSION_MINOR, KORE_VERSION_PATCH, KORE_VERSION_STATE);
+	    "server: kore (%s)\r\n", kore_version);
 	if (l == -1 || (size_t)l >= sizeof(http_version))
 		fatal("http_init(): http_version buffer too small");
 
diff --git a/src/kore.c b/src/kore.c
index c5ad0f4..e491d60 100644
--- a/src/kore.c
+++ b/src/kore.c
@@ -89,8 +89,7 @@ usage(void)
 static void
 version(void)
 {
-	printf("%d.%d.%d-%s ", KORE_VERSION_MAJOR, KORE_VERSION_MINOR,
-	    KORE_VERSION_PATCH, KORE_VERSION_STATE);
+	printf("%s ", kore_version);
 #if defined(KORE_NO_TLS)
 	printf("no-tls ");
 #endif