kumquat-buildroot/support/download/svn
Yann E. MORIN c043ecb20c support/download: change format of archives generated from svn
Like we recently did for git, switch the archives generated from
subversion to be reproducible whatever the tar version.

We have no in-tree users of the svn backend which also has hashes,
so no hash to update.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Heiko Thiery <heiko.thiery@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Vincent Fazio <vfazio@xes-inc.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: Vincent Fazio <vfazio@xes-inc.com>
2021-01-10 22:06:58 +01:00

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#!/usr/bin/env bash
# NOTE: if the output of this backend has to change (e.g. we change what gets
# included in the archive, or we change the format of the archive (e.g. tar
# options, compression ratio or method)), we MUST update the format version
# in the variable BR_FTM_VERSION_svn, in package/pkg-download.mk.
# We want to catch any unexpected failure, and exit immediately
set -e
# Download helper for svn, to be called from the download wrapper script
#
# Options:
# -q Be quiet.
# -o FILE Generate archive in FILE.
# -u URI Checkout from repository at URI.
# -c REV Use revision REV.
# -n NAME Use basename NAME.
#
# Environment:
# SVN : the svn command to call
. "${0%/*}/helpers"
verbose=
while getopts "${BR_BACKEND_DL_GETOPTS}" OPT; do
case "${OPT}" in
q) verbose=-q;;
o) output="${OPTARG}";;
u) uri="${OPTARG}";;
c) rev="${OPTARG}";;
n) basename="${OPTARG}";;
:) printf "option '%s' expects a mandatory argument\n" "${OPTARG}"; exit 1;;
\?) printf "unknown option '%s'\n" "${OPTARG}" >&2; exit 1;;
esac
done
shift $((OPTIND-1)) # Get rid of our options
# Caller needs to single-quote its arguments to prevent them from
# being expanded a second time (in case there are spaces in them)
_svn() {
eval ${SVN} "${@}"
}
_svn export ${verbose} "${@}" "'${uri}@${rev}'" "'${basename}'"
# Get the date of the revision, to generate reproducible archives.
# The output format is YYYY-MM-DDTHH:MM:SS.mmmuuuZ (i.e. always in the
# UTC timezone), which we can feed as-is to the --mtime option for tar.
# In case there is a redirection (e.g. http -> https), just keep the
# last line (svn outputs everything on stdout)
date="$( _svn info --show-item last-changed-date "'${uri}@${rev}'" |tail -n 1 )"
# Generate the archive.
# We did a 'svn export' above, so it's not a working copy (there is no .svn
# directory or file to ignore).
mk_tar_gz "${basename}" "${basename}" "${date}" "${output}"