buildroot/support/download/hg
Thomas De Schampheleire 4d6c6b1bd4 support/download/hg: fix broken method
Commit 54d3d94b6e broke the 'hg' download
method, in a similar way as it broke the 'git' download method (later fixed
with commit b70ce56651), by introducing extra
output on stdout in a case where the output is redirected.

In the case of 'hg', the 'hg archive' step uses shell redirection rather
than directly letting hg write the output file, since commit
76b51f90c0.

As a result, the extra print added by the _hg function is prepended to the
actual archive, causing an invalid archive.

Fix by using the _plain_hg function instead. The disadvantage is that the
command for 'hg archive' is no longer printed.

Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2021-04-28 21:51:10 +02:00

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#!/usr/bin/env bash
# We want to catch any unexpected failure, and exit immediately
set -e
# Download helper for hg, to be called from the download wrapper script
#
# Options:
# -q Be quiet.
# -o FILE Generate archive in FILE.
# -u URI Clone from repository at URI.
# -c CSET Use changeset (or revision) CSET.
# -n NAME Use basename NAME.
#
# Environment:
# HG : the hg command to call
quiet=
while getopts "${BR_BACKEND_DL_GETOPTS}" OPT; do
case "${OPT}" in
q) quiet=-q;;
o) output="${OPTARG}";;
u) uri="${OPTARG}";;
c) cset="${OPTARG}";;
n) basename="${OPTARG}";;
:) printf "option '%s' expects a mandatory argument\n" "${OPTARG}"; exit 1;;
\?) printf "unknown option '%s'\n" "${OPTARG}" >&2; exit 1;;
esac
done
shift $((OPTIND-1)) # Get rid of our options
# Caller needs to single-quote its arguments to prevent them from
# being expanded a second time (in case there are spaces in them)
_hg() {
if [ -z "${quiet}" ]; then
printf '%s ' ${HG} "${@}"; printf '\n'
fi
_plain_hg "$@"
}
# Note: please keep command below aligned with what is printed above
_plain_hg() {
eval ${HG} "${@}"
}
_hg clone ${quiet} "${@}" --noupdate "'${uri}'" "'${basename}'"
_plain_hg archive ${quiet} --repository "'${basename}'" --type tgz \
--prefix "'${basename}'" --rev "'${cset}'" \
- >"${output}"