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guess-rev.sh 2.01 KiB
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  • # 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.
    #
    
    usage() {
    	echo "Usage: $0 [srctree]" >&2
    	exit 1
    }
    
    cd "${1:-.}" || usage
    
    # 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'