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|
#!/bin/sh
# Generate debian/changelog.upstream from debian/changelog and
# the git revision log. Inspired by Gerrit Pape’s
# debian/changelog.upstream.sh, from the git-core Debian package.
set -e
# If argument matches /^Version: /, output remaining text.
# Result is true if and only if argument matches.
version_line() {
local line result
line=$1
result=${line#Version: }
if test "$result" = "$line"
then
return 1
else
printf "%s\n" "$result"
return 0
fi
}
# If argument matches /^\* New.*snapshot.*commit /,
# output remaining text.
# Result is true if and only if argument matches.
commit_id_line() {
local line result
line=$1
result=${line#\* New*snapshot*commit }
if test "$result" = "$line"
then
return 1
else
printf "%s\n" "$result"
return 0
fi
}
# Read standard input, scanning for a changelog entry of the
# form “New snapshot, taken from upstream commit <blah>.”
# Output is <blah>.
# Fails and writes a message to standard error if no such entry is
# found before the next Version: line with a different upstream
# version (or EOF).
# $1 is the upstream version sought.
read_commit_id() {
local upstream_version line version cid
upstream_version=$1
while read line
do
if
version=$(version_line "$line") &&
test "${version%-*}" != "$upstream_version"
then
break
fi
if cid=$(commit_id_line "$line")
then
printf "%s\n" "${cid%.}"
return 0
fi
done
echo >&2 "No commit id for $upstream_version"
return 1
}
last=none
last_cid=none
# Add a list of all revisions up to $last to debian/changelog.upstream
# and set last=$2.
# $1 is a user-readable name for the commit $2
add_version() {
local new new_cid limiter
new=$1
new_cid=$2
if test "$last" = none
then
: > debian/changelog.upstream
last=$new
last_cid=$new_cid
return 0
fi
exec >> debian/changelog.upstream
if test "$new" = none
then
echo "Version $last:"
echo "Version $last:" | tr "[:print:]" -
limiter=
elif test "$new" = "$last"
then
return 0
else
echo "Version $last; changes since $new:"
echo "Version $last; changes since $new:" | tr "[:print:]" -
limiter="$new_cid.."
fi
echo
git rev-list --no-merges "$limiter$last_cid" |
git diff-tree --date=iso --stat --format=medium --stdin
test "$new" = none || echo
last=$new
last_cid=$new_cid
}
dpkg-parsechangelog --format rfc822 --all | {
while read line
do
if version=$(version_line "$line")
then
# strip Debian revision
upstream_version=${version%-*}
if git rev-parse --verify -q "v$upstream_version" > /dev/null
then
# upstream release
add_version "$upstream_version" "v$upstream_version"
else
# snapshot
cid=$(read_commit_id "$upstream_version") || exit 1
add_version "$upstream_version" "$cid"
fi
fi
done
add_version none none
}
|
