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|
#!/bin/sh
if test $# -lt 1 ; then
cat >>/dev/stderr <<EOF
Usage:
$0 <summarydir> [ <repodir> ]
Identify the git revision of the earliest test result (based on commit
rank) in <summarydir>.
If there are no test results, use <repodir>'s HEAD.
EOF
exit 1
fi
# paths need to be absolute as potentially cd'ing to $repodir
webdir=$(cd $(dirname $0) && pwd)
summarydir=$(cd $1 && pwd) ; shift
if test $# -gt 0 ; then
cd $1
shift
fi
# Create a list of the earliest hashes. Use xargs to keep the length
# under control.
#
# Most likely this is just one hash, but as results get bigger you
# never know.
hashes=$(ls ${summarydir} \
| xargs --no-run-if-empty \
${webdir}/gime-git-rev.sh \
| xargs --no-run-if-empty \
git show --ignore-missing --no-patch --format=%h \
| xargs --no-run-if-empty \
git merge-base --octopus )
if test -z "${hashes}" ; then
hash=$(git show --no-patch --format=%h HEAD)
echo "No results in ${summarydir} using HEAD ${hash}" 1>&2
echo $hash
exit 0
fi
# determine the first of them; need to pretty print the result (git
# merge-base doesn't handle --format).
#
# Assume that ${hashes} isn't so long that more than two iterations of
# merge-base are needed. If that turns out to be false then "fixing"
# merge-base to take stdin would be better.
git show --no-patch --format=%h \
$(git merge-base --octopus ${hashes})
|
