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epics-base/.tools/make-tar.sh
2024-06-27 22:20:19 -05:00

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#!/bin/bash
#
# Make tar for git repo w/ one level of sub modules.
#
set -e
die() {
echo "$1" >&2
exit 1
}
maybedie() {
if [ "$DEVMODE" ]; then
echo "Warning: $1" >&2
else
echo "Error: $1" >&2
exit 1
fi
}
usage() {
cat <<EOF >&2
usage: $0 [-v] [-d] <rev> [<outfile> [<prefix>]]
<rev> may be any git revision spec. (tag or, using -d, branch or commit id).
If provided, <outfile> must end with ".tar", ".tar.gz" or ".tar.bz2".
If <outfile> is omitted, "base-<rev>.tar.gz" will be used.
If provided, <prefix> must end with "/". If <prefix> is omitted,
the default is "base-<rev>/".
Options:
-v Enable verbose prints
-d Enable permissive developer mode
EOF
exit 1
}
export DEVMODE=
while getopts "vd" OPT
do
case "$OPT" in
v) set -x;;
d) DEVMODE=1;;
?) echo "Unknown option"
usage;;
esac
done
shift $(($OPTIND - 1))
TOPREV="$1"
FINALTAR="$2"
PREFIX="${3:-}"
[ "$TOPREV" ] || usage
case "$FINALTAR" in
"")
TAROPT=-z
FINALTAR="base-$TOPREV.tar.gz"
;;
*.tar)
TAROPT=""
;;
*.tar.gz)
TAROPT=-z
;;
*.tar.bz2)
TAROPT=-j
;;
*)
die "outfile must end with '.tar.gz' or '.tar.bz2'"
;;
esac
case "$PREFIX" in
"")
PREFIX="base-$TOPREV/"
;;
*/)
;;
*)
die "Prefix must end with '/'"
;;
esac
# Check for both <tag> and R<tag>
if ! [ `git tag -l $TOPREV` ]
then
if [ `git tag -l R$TOPREV` ]
then
TOPREV="R$TOPREV"
else
maybedie "No tags exist '$TOPREV' or 'R$TOPREV'"
fi
fi
# temporary directory w/ automatic cleanup
TDIR=`mktemp -d`
trap 'rm -rf "$TDIR"' EXIT INT QUIT TERM
mkdir "$TDIR"/tar
echo "Exporting revision $TOPREV as $FINALTAR with prefix $PREFIX"
# Use git-archive to copy files at the given revision into our temp. dir.
# Respects 'export-exclude' in .gitattributes files.
git archive --prefix=$PREFIX $TOPREV | tar -C "$TDIR"/tar -x
# use ls-tree instead of submodule-foreach to capture submodule revision associated with supermodule rev.
#
# sub-modules appear in tree as eg.:
# 160000 commit c3a6cfcf0dad4a4eeecf59b474710d06ff3eb68a modules/ca
git ls-tree -r $TOPREV | \
awk '/^[0-9]+ commit / && $4 != ".ci" {print $3, $4}' | \
while read HASH MODDIR
do
echo "Visiting $HASH $MODDIR"
if [ -e $MODDIR/.git ]
then
git -C $MODDIR archive --prefix=${PREFIX}${MODDIR}/ $HASH | tar -C "$TDIR"/tar -x
else
maybedie " Submodule not checked out."
fi
done
# make a list of files copied and filter out undesirables
(cd "$TDIR"/tar && find . -mindepth 1 -not -type d) > "$TDIR"/list.1
# Remove leading ./ from filenames
sed -i -e 's|^\./||' "$TDIR"/list.1
# Exclude files
sed \
-e '/\/\.appveyor\.yml$/d' \
-e '/\/\.appveyor\//d' \
-e '/\/\.ci-local\//d' \
-e '/\/\.ci\//d' \
-e '/\/\.cproject$/d' \
-e '/\/\.github\//d' \
-e '/\/\.gitmodules$/d' \
-e '/\/\.hgtags$/d' \
-e '/\/\.lgtm\.yml$/d' \
-e '/\/\.project$/d' \
-e '/\/\.readthedocs\.yml$/d' \
-e '/\/\.tools\//d' \
-e '/\/\.travis\.yml$/d' \
-e '/\/jenkins\//d' \
"$TDIR"/list.1 > "$TDIR"/list.2
if ! diff -U 0 "$TDIR"/list.1 "$TDIR"/list.2
then
echo "Excluding the files shown above"
fi
# Use the filtered list to build the final tar
tar -c $TAROPT -C "$TDIR"/tar -T "$TDIR"/list.2 -f "$FINALTAR"
echo "Wrote $FINALTAR"
tar -t $TAROPT -f "$FINALTAR" > "$TDIR"/list.3
# make sure we haven't picked up anything extra
if ! diff -u "$TDIR"/list.2 "$TDIR"/list.3
then
die "Oops! Tarfile diff against plan shown above"
fi