warzone2100/build_tools/autorevision.sh

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#!/bin/bash
# autorevision.sh - a shell script to get git / hg revisions etc. into binary builds.
# To use pass a path to the desired output file: some/path/to/autorevision.h.
# Note: the script will run at the root level of the repository that it is in.
# Config
TARGETFILE="${1}"
# For git repos
function gitRepo {
cd "$(git rev-parse --show-toplevel)"
# Is the working copy clean?
git diff --quiet HEAD &> /dev/null
WC_MODIFIED="${?}"
# Enumeration of changesets
VCS_NUM="$(git rev-list --count HEAD)"
if [ -z "${VCS_NUM}" ]; then
echo "warning: Counting the number of revisions may be slower due to an outdated git version less than 1.7.2.3. If something breaks, please update it."
VCS_NUM="$(git rev-list HEAD | wc -l)"
fi
# The full revision hash
VCS_FULL_HASH="$(git rev-parse HEAD)"
# The short hash
VCS_SHORT_HASH="$(echo ${VCS_FULL_HASH} | cut -b 1-7)"
# Current branch
VCS_URI="$(git symbolic-ref HEAD)"
# Current tag (or uri if there is no tag)
VCS_TAG="$(git describe --exact-match --tags 2>/dev/null)"
if [ -z "${VCS_TAG}" ]; then
VCS_TAG="${VCS_URI}"
fi
# Date of the curent commit
VCS_DATE="$(git log -1 --pretty=format:%ci)"
}
# For hg repos
function hgRepo {
cd "$(hg root)"
# Is the working copy clean?
hg sum | grep -q 'commit: (clean)'
WC_MODIFIED="${?}"
# Enumeration of changesets
VCS_NUM="$(hg id -n)"
# The full revision hash
VCS_FULL_HASH="$(hg log -r ${VCS_NUM} -l 1 --template '{node}\n')"
# The short hash
VCS_SHORT_HASH="$(hg id -i)"
# Current bookmark (bookmarks are roughly equivalent to git's branches) or branch if no bookmark
VCS_URI="$(hg id -B | cut -d ' ' -f 1)"
# Fall back to the branch if there are no bookmarks
if [ -z "${VCS_URI}" ]; then
VCS_URI="$(hg id -b)"
fi
# Current tag (or uri if there is no tag)
if [ "$(hg log -r ${VCS_NUM} -l 1 --template '{latesttagdistance}\n')" = "0" ]; then
VCS_TAG="`hg id -t | sed -e 's:qtip::' -e 's:tip::' -e 's:qbase::' -e 's:qparent::' -e "s:$(hg --color never qtop 2>/dev/null)::" | cut -d ' ' -f 1`"
else
VCS_TAG="${VCS_URI}"
fi
# Date of the curent commit
VCS_DATE="$(hg log -r ${VCS_NUM} -l 1 --template '{date|isodatesec}\n')"
}
if [[ ! -z "$(git rev-parse HEAD 2>/dev/null)" ]]; then
gitRepo
elif [[ ! -z "$(hg id 2>/dev/null)" ]]; then
hgRepo
else
echo "error: No repo detected."
exit 1
fi
cat > "${TARGETFILE}" << EOF
/* ${VCS_FULL_HASH} */
#ifndef AUTOREVISION_H
#define AUTOREVISION_H
#define VCS_NUM ${VCS_NUM}
#define VCS_DATE ${VCS_DATE}
#define VCS_URI ${VCS_URI}
#define VCS_TAG ${VCS_TAG}
#define VCS_FULL_HASH ${VCS_FULL_HASH}
#define VCS_SHORT_HASH ${VCS_SHORT_HASH}
#define VCS_WC_MODIFIED ${WC_MODIFIED}
#endif
EOF