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download_prerequisites (md5_check): New function emulates Linux 'md5 --check' on macOS.

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2017-04-11  Damian Rouson  <damian@sourceryinstitute.org>

        * download_prerequisites (md5_check): New function emulates Linux
        'md5 --check' on macOS.  Modified script for macOS compatibility.

From-SVN: r246845
This commit is contained in:
Damian Rouson 2017-04-11 16:34:07 +00:00 committed by Jerry DeLisle
parent 9b523c934a
commit b1c0468f72
2 changed files with 61 additions and 7 deletions
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5
contrib/ChangeLog
View File

@ -1,3 +1,8 @@
2017-04-11 Damian Rouson <damian@sourceryinstitute.org>
* download_prerequisites (md5_check): New function emulates Linux
'md5 --check' on macOS. Modified script for macOS compatibility.
2017-02-06 Palmer Dabbelt <palmer@dabbelt.com>
* config-list.mki (LIST): Add riscv32-unknown-linux-gun and

63
contrib/download_prerequisites
View File

@ -20,7 +20,6 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see http://www.gnu.org/licenses/.
program='download_prerequisites'
version='(unversioned)'
@ -45,7 +44,23 @@ echo_archives() {
graphite=1
verify=1
force=0
chksum='sha512'
OS=$(uname)
case $OS in
"Darwin")
chksum='shasum -a 512 --check'
;;
*)
chksum='sha512sum --check'
;;
esac
if type wget > /dev/null ; then
fetch='wget'
else
fetch='curl -LO -u anonymous:'
fi
chksum_extension='sha512'
directory='.'
helptext="usage: ${program} [OPTION...]
@ -95,6 +110,24 @@ do
done
unset arg
# Emulate Linux's 'md5 --check' on macOS
md5_check() {
# Store the standard input: a line from contrib/prerequisites.md5:
md5_checksum_line=$(cat -)
# Grab the text before the first space
md5_checksum_expected="${md5_checksum_line%% *}"
# Grab the text after the first space
file_to_check="${md5_checksum_line##* }"
# Calculate the md5 checksum for the downloaded file
md5_checksum_output=$(md5 -r "${file_to_check}")
# Grab the text before the first space
md5_checksum_detected="${md5_checksum_output%% *}"
[ "${md5_checksum_expected}" == "${md5_checksum_detected}" ] \
|| die "Cannot verify integrity of possibly corrupted file ${file_to_check}"
echo "${file_to_check}: OK"
}
argnext=
for arg in "$@"
do
@ -126,11 +159,27 @@ do
verify=0
;;
--sha512)
chksum='sha512'
case $OS in
"Darwin")
chksum='shasum -a 512 --check'
;;
*)
chksum='sha512sum --check'
;;
esac
chksum_extension='sha512'
verify=1
;;
--md5)
chksum='md5'
case $OS in
"Darwin")
chksum='md5_check'
;;
*)
chksum='md5 --check'
;;
esac
chksum_extension='md5'
verify=1
;;
-*)
@ -170,19 +219,19 @@ for ar in $(echo_archives)
do
if [ ${force} -gt 0 ]; then rm -f "${directory}/${ar}"; fi
[ -e "${directory}/${ar}" ] \
|| wget --no-verbose -O "${directory}/${ar}" "${base_url}${ar}" \
|| ${fetch} --no-verbose -O "${directory}/${ar}" "${base_url}${ar}" \
|| die "Cannot download ${ar} from ${base_url}"
done
unset ar
if [ ${verify} -gt 0 ]
then
chksumfile="contrib/prerequisites.${chksum}"
chksumfile="contrib/prerequisites.${chksum_extension}"
[ -r "${chksumfile}" ] || die "No checksums available"
for ar in $(echo_archives)
do
grep "${ar}" "${chksumfile}" \
| ( cd "${directory}" && "${chksum}sum" --check ) \
| ( cd "${directory}" && ${chksum} ) \
|| die "Cannot verify integrity of possibly corrupted file ${ar}"
done
unset chksumfile