#!/bin/sh if [ $# -gt 1 ]; then cd "$2" fi if [ $# -gt 0 ]; then FILE="$1" shift if [ -f "$FILE" ]; then INFO="$(head -n 1 "$FILE")" fi else echo "Usage: $0 <filename> <srcroot>" exit 1 fi DESC="" SUFFIX="" if [ -e "$(which git 2>/dev/null)" -a "$(git rev-parse --is-inside-work-tree 2>/dev/null)" = "true" ]; then # clean 'dirty' status of touched files that haven't been modified git diff >/dev/null 2>/dev/null # if latest commit is tagged and not dirty, then override using the tag name RAWDESC=$(git describe --abbrev=0 2>/dev/null) if [ "$(git rev-parse HEAD)" = "$(git rev-list -1 $RAWDESC 2>/dev/null)" ]; then git diff-index --quiet HEAD -- && DESC=$RAWDESC fi # otherwise generate suffix from git, i.e. string like "59887e8-dirty" SUFFIX=$(git rev-parse --short HEAD) git diff-index --quiet HEAD -- || SUFFIX="$SUFFIX-dirty" fi if [ -n "$DESC" ]; then NEWINFO="#define BUILD_DESC \"$DESC\"" elif [ -n "$SUFFIX" ]; then NEWINFO="#define BUILD_SUFFIX $SUFFIX" else NEWINFO="// No build information available" fi # only update build.h if necessary if [ "$INFO" != "$NEWINFO" ]; then echo "$NEWINFO" >"$FILE" fi