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executable file 65 lines (53 sloc) 1.221 kb
#!/bin/bash
#
# This script runs a given command over a range of Git revisions. Note that it
# will check past revisions out! Exercise caution if there are important
# untracked files in your working tree.
#
# This came from Gary Bernhardt's dotfiles:
# https://github.com/garybernhardt/dotfiles
#
# Example usage:
# $ run-command-on-git-revisions origin/master master 'python runtests.py'
set -e
if [[ $1 == -v ]]; then
verbose=1
shift
fi
start_ref=$1
end_ref=$2
test_command=$3
main() {
enforce_usage
run_tests
}
enforce_usage() {
if [ -z "$test_command" ]; then
usage
exit $E_BADARGS
fi
}
usage() {
echo "usage: `basename $0` start_ref end_ref test_command"
}
run_tests() {
revs=`log_command git rev-list --reverse ${start_ref}..${end_ref}`
for rev in $revs; do
debug "Checking out: $(git log --oneline -1 $rev)"
log_command git checkout --quiet $rev
log_command $test_command
log_command git reset --hard
done
log_command git checkout --quiet $end_ref
debug "OK for all revisions!"
}
log_command() {
debug "=> $*"
eval $*
}
debug() {
if [ $verbose ]; then
echo $* >&2
fi
}
main
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