From c3b4b71308d7c1446bca618220d5ab12a2001e25 Mon Sep 17 00:00:00 2001
From: Pieter Lexis <pieter.lexis@powerdns.com>
Date: Wed, 22 Apr 2015 16:53:46 +0200
Subject: [PATCH] Generate version number based on git

Distribute the generated .version file in the tarballs.
Gitignore some generated files
---
 pdns/dnsdistdist/.gitignore            |  3 +++
 pdns/dnsdistdist/Makefile.am           |  3 ++-
 pdns/dnsdistdist/build-aux/gen-version | 22 ++++++++++++++++++++++
 pdns/dnsdistdist/configure.ac          |  2 +-
 4 files changed, 28 insertions(+), 2 deletions(-)
 create mode 100644 pdns/dnsdistdist/.gitignore
 create mode 100755 pdns/dnsdistdist/build-aux/gen-version

diff --git a/pdns/dnsdistdist/.gitignore b/pdns/dnsdistdist/.gitignore
new file mode 100644
index 000000000..4a1df650e
--- /dev/null
+++ b/pdns/dnsdistdist/.gitignore
@@ -0,0 +1,3 @@
+*.tar.gz
+*.tar.bz2
+.version
diff --git a/pdns/dnsdistdist/Makefile.am b/pdns/dnsdistdist/Makefile.am
index 93a802db8..d6341f3fa 100644
--- a/pdns/dnsdistdist/Makefile.am
+++ b/pdns/dnsdistdist/Makefile.am
@@ -16,7 +16,8 @@ EXTRA_DIST=dnslabeltext.rl \
 	   dnsdistconf.lua \
 	   README.md \
 	   html \
-	   dnsdist.1
+	   dnsdist.1\
+	   .version
 
 bin_PROGRAMS = dnsdist
 dnsdist_SOURCES = \
diff --git a/pdns/dnsdistdist/build-aux/gen-version b/pdns/dnsdistdist/build-aux/gen-version
new file mode 100755
index 000000000..a2a42a0d4
--- /dev/null
+++ b/pdns/dnsdistdist/build-aux/gen-version
@@ -0,0 +1,22 @@
+#!/bin/sh
+VERSION="unknown"
+
+if [ ! -z "$(git rev-parse --abbrev-ref HEAD)" ]; then
+  if [ $(git rev-parse --abbrev-ref HEAD | grep -q 'rel/') ]; then
+    REL_TYPE="$(git rev-parse --abbrev-ref HEAD | cut -d/ -f 2 | cut -d- -f 1)"
+    VERSION="$(git describe --match='${REL_TYPE}-*' --dirty=-dirty )"
+  else
+    GIT_VERSION=$(git show --no-patch --format=format:%h HEAD)
+    BRANCH="$(git rev-parse --abbrev-ref HEAD | perl -p -e 's/-//g')"
+    if [ "${BRANCH}" = "master" ]; then
+      VERSION="0.0.${PDNS_BUILD_NUMBER}g${GIT_VERSION}"
+    else
+      VERSION="0.0.${BRANCH}.${PDNS_BUILD_NUMBER}g${GIT_VERSION}"
+    fi
+  fi
+  echo "$VERSION" > .version
+elif [ -f .version ]; then
+  VERSION="$(cat .version)"
+fi
+
+echo $VERSION
diff --git a/pdns/dnsdistdist/configure.ac b/pdns/dnsdistdist/configure.ac
index 1fb994808..fbe1953bc 100644
--- a/pdns/dnsdistdist/configure.ac
+++ b/pdns/dnsdistdist/configure.ac
@@ -1,4 +1,4 @@
-AC_INIT([dnsdist], [0.1])
+AC_INIT([dnsdist], m4_esyscmd_s(build-aux/gen-version))
 AM_INIT_AUTOMAKE([foreign dist-bzip2 parallel-tests 1.11 subdir-objects])
 AM_SILENT_RULES([yes])
 AC_CONFIG_MACRO_DIR([m4])
-- 
2.50.0