Tamarin/hooks/prebuild/eole/create-changelog

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#!/usr/bin/env bash
cd src
if [ -f debian/changelog ] || [ ! -d .git ]; then
tamarin_info "Not a Git repository or Debian changelog already exists !"
exit
else
tamarin_info "Creating changelog with commits information."
fi
# Get pkg tags as tie points in commit history
pkg_tags="$(git for-each-ref --format '%(refname)' refs/tags | tac)"
# Set starting commit
ceiling_commit=$(git describe --match "build/*" --abbrev=0 2>/dev/null)
if [ -z "$ceiling_commit" ]
then
ceiling_commit="HEAD"
fi
first_commit=$(git rev-list --max-parents=0 HEAD)
# Get commits log as changelog
current_release_tag=$(git describe --match "release/*" --abbrev=0 2>/dev/null)
if [[ -z ${current_release_tag} ]]
then
tamarin_warn "No release tag found, you repo should have a tag like 'release/*'"
tamarin_info "Assuming tag release/0.0.0 on first commit of branch master"
current_release="release/0.0.0"
current_release_tag=${first_commit}
else
current_release=$current_release_tag
fi
touch debian/changelog
project_name=$(tamarin_db get project_name)
distribution=$(tamarin_db get distribution UNRELEASED)
urgency=$(tamarin_db get urgency low)
package_level=$(tamarin_db get package_level dev)
function get_hash {
# Return commit hash from various pointer
pointer="$1"
echo "$(git log -n1 --format=%H ${pointer})"
}
function get_short_hash {
# Return commit short hash from various pointer
pointer="$1"
echo "$(git log -n1 --format=%h ${pointer})"
}
function get_previous_pkg_tag {
# Return previous pkg/* tag or current tag if no previous pkg/* exists.
commit="$1"
echo "$(git describe --abbrev=0 --match='pkg/*' $commit 2>/dev/null)"
}
function parse_tag {
tag="$1"
flavor="${tag%%/*}"
extended_version="${tag##*/}"
if [ "$flavor" = "pkg" ]
then
exploded_version="$(echo $extended_version | sed "s/\([a-z0-9.+]\+\)-\([0-9]\+\)\(-[a-z]\++[0-9]\+\)\?\(-\([0-9]\+\)-\(g[a-z0-9]\+\)\)\?$/version:\1 revision:\2 modification:\3 distance:\5 anchor:\6/")"
elif [ "$flavor" = "release" ]
then
exploded_version="$(echo $extended_version | sed "s/\([a-z0-9.+]\+\)\(-\([0-9]\+\)-\(g[a-z0-9]\+\)\)\?$/version:\1 distance:\3 anchor:\4/")"
fi
echo $exploded_version
}
function get_distance_from_tag {
description_tag="$1"
tag=${description_tag%-*-*}
anchor="$2"
if [[ "$(get_hash $tag)" =~ "$(get_hash $anchor)" ]]
then
echo 0
else
distance="$(parse_tag $description_tag)"
distance="${distance#*distance:}"
distance="${distance%% *}"
echo $distance
fi
}
function get_upstream_version_from_tag {
tag="$1"
upstream="$(parse_tag $tag)"
upstream="${upstream#*version:}"
upstream="${upstream%% *}"
echo "$upstream"
}
function get_package_version_from_tag {
tag="$1"
package="$(parse_tag $tag)"
package="${package#*revision:}"
package="${package%% *}"
echo "$package"
}
function get_distribution_from_tag {
# tag pkg like pkg/<level>/<distrib>/<version>
# <distrib> may be composed
tag="$1"
distribution="${tag#pkg/*/}"
distribution="${distribution%/*}"
distribution="${distribution/\//-}"
echo $distribution
}
function get_previous_release_tag {
# Return previous pkg/* tag or current tag if no previous pkg/* exists.
commit="$1"
echo "$(git describe --abbrev=0 --always --match='release/*' $commit)"
}
function on_pkg_tag {
# Return 1 if current commit is tagged with pkg/* tag.
commit="$1"
nearest_old_pkg_tag="$(get_previous_pkg_tag $commit)"
if [ -n "${nearest_old_pkg_tag}" ] && [ "$(get_hash ${commit})" = "$(get_hash ${nearest_old_pkg_tag})" ]
then
return 0
else
return 1
fi
}
function next_step {
# Return previous pkg/* tag or first commit if no pkg/* tag exists
commit="$1"
if [ "$(get_hash $commit)" = "$(get_hash $first_commit)" ]
then
echo $commit
elif on_pkg_tag $commit
then
nearest_old_pkg_tag="$(get_previous_pkg_tag ${commit}^1)"
else
nearest_old_pkg_tag="$(get_previous_pkg_tag ${commit})"
fi
if [[ "$nearest_old_pkg_tag" =~ 'pkg/' ]]
then
echo $nearest_old_pkg_tag
else
echo $first_commit
fi
}
function date_from_commit {
# Return date suitable for changelog entry signature
commit="$1"
if [ "$(get_hash ${commit})" = "$(get_hash HEAD)" ]
then
package_date=$(date --rfc-2822)
else
maintainer_commit="$(get_previous_pkg_tag $commit)"
package_date="$(git tag -l --format='%(creator)' ${maintainer_commit})"
package_date="${package_date##*> }"
package_date="$(date --rfc-2822 -d @${package_date% *})"
fi
echo "$package_date"
}
function packager_from_commit {
# Return Name <mail> id format, suitable for changelog entry signature
commit="$1"
if on_pkg_tag "${commit}"
then
maintainer_commit="$(get_previous_pkg_tag $commit)"
maintainer="$(git tag -l --format='%(creator)' ${maintainer_commit})"
maintainer="${maintainer%>*}>"
else
maintainer="$(git log -n1 --format='%cn <%ce>')"
fi
maintainer=$(tamarin_db get maintainer "${maintainer}")
echo "$maintainer"
}
function next_version {
set -x
commit="$1"
# upstream version is given by most recent of release or pkg tag
previous_pkg="$(git describe --long --match='pkg/*' $commit 2>/dev/null)"
previous_release="$(git describe --long --match='release/*' $commit 2>/dev/null)"
if [ -n "$previous_release" ] && [ -n "$previous_pkg" ]
then
distance_from_pkg=$(get_distance_from_tag "$previous_pkg" "$commit")
distance_from_release=$(get_distance_from_tag "$previous_release" "$commit")
if [ $distance_from_release -le $distance_from_pkg ]
then
distance=$distance_from_release
version="$(get_upstream_version_from_tag $previous_release)-1"
else
distance=$distance_from_pkg
version="$(get_upstream_version_from_tag $previous_pkg)-$(expr $(get_package_version_from_tag $previous_pkg) + 1)"
fi
elif [ -n "$previous_release" ]
then
distance_from_release=$(get_distance_from_tag "$previous_release" "$commit")
distance=$distance_from_release
version="$(get_upstream_version_from_tag $previous_release)-1"
elif [ -n "$previous_pkg" ]
then
distance_from_pkg=$(get_distance_from_tag "$previous_pkg" "$commit")
distance=$distance_from_pkg
version="$(get_upstream_version_from_tag $previous_pkg)-$(expr $(get_package_version_from_tag $previous_pkg) + 1)"
else
distance=$(git rev-list --no-merges --count ${commit}..${first_commit})
version="0.0.0-1"
fi
if [ "$package_level" = 'dev' ] || [ "$package_level" = 'staging' ]
then
version="${version}~${package_level}+${distance}"
fi
echo $version
set +x
}
function gen_changelog_entry {
ceiling_commit=$1
floor_commit="$(next_step "${ceiling_commit}")"
if [ "$(get_hash ${ceiling_commit})" = "$(get_hash ${floor_commit})" ]
then
return 1
fi
if on_pkg_tag $ceiling_commit
then
ceiling_commit="$(get_previous_pkg_tag $ceiling_commit)"
version="$(get_upstream_version_from_tag $ceiling_commit)-$(get_package_version_from_tag $ceiling_commit)"
distribution="$(get_distribution_from_tag $ceiling_commit)"
else
tamarin_info "current commit $ceiling_commit"
version=$(next_version $ceiling_commit)
distribution="UNRELEASED"
fi
#current_release="$(git describe --abbrev=0 --always --match='release/*' $ceiling_commit)"
tamarin_info "Création de lentrée de changelog entre ${ceiling_commit} et ${floor_commit}"
maintainer="$(packager_from_commit ${ceiling_commit})"
package_date="$(date_from_commit ${ceiling_commit})"
version=${version/_/-}
changelog_entry="${project_name} (${version}) ${distribution}; urgency=${urgency}"
echo "$changelog_entry" >> debian/changelog
echo >> debian/changelog
for commit in $(git log --no-merges --format='%H' ${floor_commit}..${ceiling_commit})
do
subject="$(git log -n1 --format=%s ${commit})"
echo " * ${subject}" >> debian/changelog
#ceiling_commit="$(git log -n1 --format='%H' ${commit}^1)"
done
echo >> debian/changelog
changelog_sign=" -- ${maintainer} ${package_date}"
echo "$changelog_sign" >> debian/changelog
echo >> debian/changelog
ceiling_commit=${floor_commit}
}
function gen_changelog() {
limit=10
while gen_changelog_entry $ceiling_commit
do
limit=`expr $limit - 1`
echo $changelog_entry
if [ "$limit" -le 0 ]
then
break
fi
done
}
gen_changelog
cp debian/changelog /dist/changelog