Change version labels to work better with GIT

- The guess-rev.sh script is now a tweaked version of "setlocalversion" as
   seen in Linux, U-Boot, and various other projects.  When it finds source
   control support (git, hg, svn) it uses IDs from there.  Else (specific
   to this project) it reports itself as "-snapshot", e.g. from gitweb.

   I verified this new "guess-rev.sh" script runs under Cygwin.

 - Also update the generic version strings to be like "0.3.0-dev" (during
   development) instead of the very long "0.3.0-in-development".  These also
   show up in the PDF docs.  For better tracking, we might eventually change
   these strings to include the version IDs too.

 - Change the startup banner version strings so they include the guess-rev
   output.  Development and release versions with GIT will be like

    Open On-Chip Debugger 0.3.0-dev-00282-g7191a4f-dirty (2009-10-05-20:57) 
    Open On-Chip Debugger 0.3.0 (2009-10-05-20:57) 

   instead of the previous SVN-specific (even when using git-svn!)

    Open On-Chip Debugger 0.3.0-in-development (2009-10-05-01:39) svn:exported
    Open On-Chip Debugger 0.3.0 (2009-10-05-01:39) Release



git-svn-id: svn://svn.berlios.de/openocd/trunk@2809 b42882b7-edfa-0310-969c-e2dbd0fdcd60

configure.in

@@ -1,5 +1,5 @@
 AC_PREREQ(2.60)
-AC_INIT([openocd], [0.3.0-in-development],
+AC_INIT([openocd], [0.3.0-dev],
   [OpenOCD Mailing List <openocd-development@lists.berlios.de>])
 AC_CONFIG_SRCDIR([src/openocd.c])
 

doc/manual/release.txt

@@ -62,9 +62,9 @@ the minor version will @a also be zero (<code>y = 0, z = 0</code>).
 @subsection releaseversiontags Version Tags
 
 After these required numeric components, the version string may contain
-one or more <i>version tags</i>, such as '-rc1' or '-in-development'.
+one or more <i>version tags</i>, such as '-rc1' or '-dev'.
 
-The trunk and all branches should have the tag '-in-development' in
+The trunk and all branches should have the tag '-dev' in
 their version number.  This tag helps developers identify reports
 created from the Subversion repository, and it can be detected and
 manipulated by the release script.  Specifically, this tag will be
@@ -218,7 +218,7 @@ The following steps should be followed to produce each release:
     - This material should be produced during the development cycle.
     - Add a new item for each @c NEWS-worthy contribution, when committed.
   -# bump library version if our API changed (not yet required)
-  -# Remove -in-development tag from package version:
+  -# Remove -dev tag from package version in configure.in:
     - For major/minor releases, remove version tag from trunk, @a or
     - For bug-fix releases, remove version tag from release branch.
 -# Branch or tag the required tree in the Subversion repository:

guess-rev.sh

@@ -1,8 +1,83 @@
-#!/bin/bash
+#!/bin/sh
+#
+# This scripts adds local version information from the version
+# control systems git, mercurial (hg) and subversion (svn).
+#
+# Copied from Linux 2.6.32 scripts/setlocalversion and modified
+# slightly to work better for OpenOCD.
 #
 
-REV=unknown
+usage() {
+	echo "Usage: $0 [srctree]" >&2
+	exit 1
+}
 
-which svnversion > /dev/null 2>&1 && REV=`svnversion -n "$1"`
+cd "${1:-.}" || usage
 
-echo -n $REV
+# Check for git and a git repo.
+if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
+
+	# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore it,
+	# because this version is defined in the top level Makefile.
+	if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
+
+		# If we are past a tagged commit (like "v2.6.30-rc5-302-g72357d5"),
+		# we pretty print it.
+		if atag="`git describe 2>/dev/null`"; then
+			echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+
+		# If we don't have a tag at all we print -g{commitish}.
+		else
+			printf '%s%s' -g $head
+		fi
+	fi
+
+	# Is this git on svn?
+	if git config --get svn-remote.svn.url >/dev/null; then
+	        printf -- '-svn%s' "`git svn find-rev $head`"
+	fi
+
+	# Update index only on r/w media
+	[ -w . ] && git update-index --refresh --unmerged > /dev/null
+
+	# Check for uncommitted changes
+	if git diff-index --name-only HEAD | grep -v "^scripts/package" \
+	    | read dummy; then
+		printf '%s' -dirty
+	fi
+
+	# All done with git
+	exit
+fi
+
+# Check for mercurial and a mercurial repo.
+if hgid=`hg id 2>/dev/null`; then
+	tag=`printf '%s' "$hgid" | cut -d' ' -f2`
+
+	# Do we have an untagged version?
+	if [ -z "$tag" -o "$tag" = tip ]; then
+		id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
+		printf '%s%s' -hg "$id"
+	fi
+
+	# Are there uncommitted changes?
+	# These are represented by + after the changeset id.
+	case "$hgid" in
+		*+|*+\ *) printf '%s' -dirty ;;
+	esac
+
+	# All done with mercurial
+	exit
+fi
+
+# Check for svn and a svn repo.
+if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
+	rev=`echo $rev | awk '{print $NF}'`
+	printf -- '-svn%s' "$rev"
+
+	# All done with svn
+	exit
+fi
+
+# There's no reecognized repository; we must be a snapshot.
+printf -- '-snapshot'

src/Makefile.am

@@ -28,10 +28,12 @@ AM_CPPFLAGS = \
 
 libopenocd_la_CPPFLAGS = -DPKGBLDDATE=\"`date +%F-%R`\"
 
+# banner output includes RELSTR appended to $VERSION from the configure script
+# guess-rev.sh returns either a repository version ID or "-snapshot"
 if RELEASE
-libopenocd_la_CPPFLAGS += -DRELSTR=\"Release\" -DPKGBLDREV=\"\"
+libopenocd_la_CPPFLAGS += -DRELSTR=\"\"
 else
-libopenocd_la_CPPFLAGS += -DRELSTR=\"svn:\" -DPKGBLDREV=\"`$(top_srcdir)/guess-rev.sh $(top_srcdir)`\"
+libopenocd_la_CPPFLAGS += -DRELSTR=\"`$(top_srcdir)/guess-rev.sh $(top_srcdir)`\"
 endif
 
 # add default CPPFLAGS

src/openocd.c

@@ -49,7 +49,7 @@
 
 
 #define OPENOCD_VERSION \
-		"Open On-Chip Debugger " VERSION " (" PKGBLDDATE ") " RELSTR PKGBLDREV
+		"Open On-Chip Debugger " VERSION RELSTR " (" PKGBLDDATE ")"
 
 static void print_version(void)
 {

tools/release.sh

@@ -97,7 +97,7 @@ package_info_load() {
 
 	PACKAGE_VERSION="$(package_info_load_version)"
 	[ "${RELEASE_VERSION}" ] || \
-		RELEASE_VERSION=${PACKAGE_VERSION/-in-development/}
+		RELEASE_VERSION=${PACKAGE_VERSION/-dev/}
 
 	[ "${PACKAGE_NAME}" -a "${PACKAGE_VERSION}" ] || \
 		die "package information is missing from configure script"
@@ -427,7 +427,7 @@ do_commit() {
 	package_info_load
 	svn_setup_load
 
-	[ "${PACKAGE_VERSION/in-development/}" = "${PACKAGE_VERSION}" ] || \
+	[ "${PACKAGE_VERSION/dev/}" = "${PACKAGE_VERSION}" ] || \
 		die "'${PACKAGE_NAME}-${PACKAGE_VERSION}' cannot be released"
 
 	[ "${PACKAGE_VERSION%.0}" = "${PACKAGE_VERSION}" ] || \
@@ -437,7 +437,7 @@ do_commit() {
 
 
 do_release_step_prep() {
-	do_version tag remove in-development
+	do_version tag remove dev
 	# reset RELEASE_VERSION now to allow release version to be detected
 	export RELEASE_VERSION=
 }
@@ -447,7 +447,7 @@ do_release_step_branch_bump() {
 	local TYPE="$1"
 	echo "Bump ${TYPE} version and add tag:"
 	do_version_bump ${TYPE}
-	do_version_tag_add in-development
+	do_version_tag_add dev
 }
 do_release_step_branch() {
 	do_svn_switch "${PACKAGE_BRANCH}"