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|
#!/bin/bash -euE
cmd="${0##*/}"
export TMPDIR="`mktemp -d --tmpdir ${cmd}.XXXXXXXXXX`"
cleanup() {
msg "$(gettext "Removing temporary files...")"
echo rm -rf "$TMPDIR"
}
trap cleanup EXIT
. libremessages
abort() {
echo # force a fresh line
error "$(gettext "Aborting...")"
cleanup
}
##
# Usage: trailing-newline FILE
#
# Adds a trailing newline to ${FILE} if there isn't one.
#
# Useful because different versions of git are inconsistent about
# when there is one on output.
###
trailing-newline() {
local file=$1
if [[ "`sed -n '$p' "$file"|wc -l`" = 0 ]]; then
echo >> "$file"
fi
}
##
# Usage: collect-data
#
# Assumptions:
# - currently in the working repo
# Effected by:
# - file ../missing-packages
# Effects:
# - creates file "../find"
# - creates file "../packages"
# - creates file "../architectures"
# Side effects:
# - creates file "${TMPDIR}/commits"
##
collect-data() {
local mode=fast # 'correct' or 'fast
# 'fast' may omit some packages that have been deleted.
msg "$(gettext "Collecting package data...")"
case "$mode" in
correct) git log --pretty=format:'%H' master > "${TMPDIR}/commits";;
fast) git log -n1 --pretty=format:'%H' master > "${TMPDIR}/commits";;
*) usage; return 1;;
esac
trailing-newline "${TMPDIR}/commits"
# actual data collection ###############################################
local count="$(wc -l < "${TMPDIR}/commits")"
cat -n "${TMPDIR}/commits" | while read n commit; do
printf "\\r$(gettext "Scanning commit %s (%d/%d)")" "$commit" "$n" "$count" >> /dev/tty
git ls-tree -rd --name-only "$commit"
done | fgrep /repos/ | sort -u > ../find
echo # newline
# extract some things ##################################################
# packages
{
if [[ $mode = fast ]]; then
cat ../{packages,missing-packages} 2>/dev/null || true
fi
< ../find sed -e 's|^\.||' -e 's|/.*||'
} | sort -u > ../packages.tmp
mv ../packages{.tmp,}
# architectures
{
echo master
< ../find sed -e 's/.*-//' -e '/^any$/d'
} | sort -u > ../architectures
}
##
# Usage: convert-package PACKAGE
#
# Assumptions:
# - currently in the working repo
# Effects:
# - creates git branch "pkgs/${PACKAGE}"
# - creates file "../pkg-${PACKAGE}.commits"
# Side effects:
# - changes git working tree
# - prints output of git commands
##
convert-package() {
local package=$1
local obranch="pkgs/${package}"
local ibranch
local dir
if git checkout "packages/${package}" &>/dev/null; then
# special case (common; optimization)
ibranch="packages/${package}"
dir=trunk
else
# general case (uncommon)
ibranch=master
dir="${package}/trunk"
fi
git rewrite-branch --svn "$ibranch" "$obranch" \
--prune-empty --subdirectory-filter "$dir"
if [[ $ibranch != master ]]; then
git branch -D "$ibranch"
fi
git log "$obranch" --pretty=format:'%T %H' \
> "../pkg-${package}.commits"
}
##
# Usage: convert-packages
# Assumptions:
# - currently in the working repo
# - file "../packages" contains a newline-separated list of packages
# Effects:
# - runs `convert-package` for every package listed in "../packages"
# - prints status updates about what it is doing
##
convert-packages() {
msg "$(gettext "Converting packages...")"
local count="$(wc -l < ../packages)"
cat -n ../packages | while read n package; do
msg2 "$(gettext "(%d/%d) %s")" "$n" "$count" "$package"
convert-package "$package"
done
}
##
# Usage: convert-arch ARCH
# Assumptions:
# - currently in the working repo
# - file "../packages-${PACKAGE}.commits" exists for every package
# Effects:
# - creates git branch "${ARCH}"
# - creates file "${TMPDIR}/missing-packages/${ARCH}"
# Side effects:
# - changes git working tree
# - prints output of git commands
##
convert-arch() {
local arch=$1
mkdir -p "${TMPDIR}/missing-packages"
touch "${TMPDIR}/missing-packages/${arch}.tmp"
git rewrite-branch master "$arch" \
--tree-filter "${cmd}--filterarch $arch"
sort -u \
< "${TMPDIR}/missing-packages/${arch}.tmp" \
> "${TMPDIR}/missing-packages/${arch}"
rm -f "${TMPDIR}/missing-packages/${arch}.tmp"
}
##
# Usage: convert-arches
# Assumptions:
# - currently in the working repo
# - file "../architectures" contains a newline-separated list of arches
# Effects:
# - runs `convert-arch` for every arch listed in "${TMPDIR}/architectures"
# - prints status updates about what it is doing
##
convert-arches() {
msg "$(gettext "Converting architectures...")"
local count="$(wc -l < "../architectures")"
cat -n "../architectures" | while read n arch; do
msg2 "$(gettext "(%d/%d) %s")" "$n" "$count" "$arch"
convert-arch "$arch"
done
}
usage() {
echo "Usage: ${0##*/} SOURCE"
echo "Convert the absgit format SOURCE to pbs format"
echo
echo "SOURCE must be configured in /etc/libretools.d/pbs-convert.conf"
}
main() {
trap abort EXIT
[[ $# = 1 ]] || { usage; return 1; }
local source=$1
local cache="$(pbs-plumb-config get core.cachedir)/${source}.git"
local workdir="$(pbs-plumb-config get core.rewritedir)/${source}"
local sourcedir="$(pbs-plumb-config get core.sourcedir)"
# init ###################################d##############################
if [[ ! -d "${workdir}" ]]; then
msg "$(gettext "Creating working copy...")"
git clone "$cache" "${workdir}/repo"
fi
cd "${workdir}/repo"
# main #################################################################
collect-data fast
convert-packages
convert-arches
# save results #########################################################
msg "$(gettext "Copying into source directory...")"
[[ -d "$sourcedir" ]] || mkdir -p "$sourcedir"
# copy git repo
git clone --mirror "${TMPDIR}/repo" "${sourcedir}/${source}.new.git"
if [[ -d "${sourcedir}/${source}.git" ]]; then
mv "${sourcedir}/${source}"{,.old}.git
fi
mv "${sourcedir}/${source}"{.new,}.git
if [[ ! -d "${sourcedir}/${source}.old.git" ]]; then
rm -rf "${sourcedir}/${source}".old.git
fi
# copy other data
cp -f "../packages" "${sourceir}/${source}.packages"
cat "${TMPDIR}"/missing-packages/* > "${sourceir}/${source}.missing-packages"
trap cleanup EXIT
}
main "$@"
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