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#!/bin/sh
# An example hook script for catching duplicate or malformed
# Co-authored-by or Copyright-paperwork-exempt lines in the
# commit message.
: ${SED="sed"}
test set = ${ECHO+'set'} = set || ECHO='printf %s\n'
basename="$SED -e "'s|^.*/||'
nl='
'
progpath="$0"
progname=`$ECHO "$progpath" |$basename`
log_file=$1
export log_file
fn_error ()
{
prefix="$progname: error: "
save_IFS=$IFS
IFS=$nl
for line in $*; do
IFS=$save_IFS
$ECHO "$prefix$line" 1>&2
prefix="$progname: "
done
IFS=$save_IFS
}
fn_re_edit ()
{
$ECHO 'Press return to edit. Ctrl-C to abort...' >&2
read v
${EDITOR-'vi'} "$log_file"
}
fn_rewrite ()
{
# Output once to stderr
fn_error "$*"
# And again as a comment in the log_file ready for re-editing
$ECHO "$*" |$SED 's,^,# ,'
echo
cat "$log_file"
}
fn_check_msg ()
{
return_status=0
CAB_re='^Co-authored-by: '
CPR_re='^Copyright-paperwork-exempt: '
# Flag duplicated Co-authored-by lines.
dups=`grep "$CAB_re" "$log_file" 2>/dev/null \
|sort |uniq -c |sed -e '/^[ ]*1[ ]/d'`
test -n "$dups" && {
$ECHO 'Duplicate Co-authored-by lines:
'"$dups"
return_status=1
}
# Make sure each Co-authored-by line contains a valid email.
email_re='<.*@.*\..*>'
grep "$CAB_re" "$log_file" 2>/dev/null \
|while read CAB; do
test 0 -eq `expr "$CAB" : ".*$email_re"` && {
echo "Malformed or missing email in \`$CAB'"
return_status=1
}
done
# Flag duplicated Copyright-paperwork-exempt lines.
count=`grep "$CPR_re" "$log_file" 2>/dev/null \
|wc |sed -e 's,^[ ]*,,;s,[ ].*$,,'`
test 2 -gt "$count" || {
$ECHO 'More than one Copyright-paperwork-exempt line.'
return_status=1
}
# Make sure Copyright-paperwork-exempt line is valid.
if grep "${CPR_re}[Nn]" "$log_file" >/dev/null 2>&1; then
$ECHO "\
\`Copyright-paperwork-exempt: No' is redundant, please remove."
return_status=1
else
not_yes=`grep "${CPR_re}" "$log_file" 2>/dev/null \
|grep -v "${CPR_re}Yes\$"`
test -n "$not_yes" && {
$ECHO "\`Copyright-paperwork-exempt' setting must be \`Yes'."
return_status=1
}
fi
return $return_status
}
while :; do
err=`fn_check_msg` && break
fn_rewrite "$err" > "${log_file}T" && mv "${log_file}T" "$log_file"
fn_re_edit
done
|
