Fixes changelog et version computation

hooks/prebuild/eole/create-changelog

@@ -1,5 +1,4 @@
 #!/usr/bin/env bash
-
 cd src
 if [ -f debian/changelog ] || [ ! -d .git ]; then
     tamarin_info "Not a Git repository or Debian changelog already exists !"
@@ -13,7 +12,7 @@ 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 [ -n "ceiling_commit" ]
+if [ -z "ceiling_commit" ]
 then
   ceiling_commit="HEAD"
 fi
@@ -55,7 +54,7 @@ function get_short_hash {
 function get_previous_pkg_tag {
   # Return previous pkg/* tag or current tag if no previous pkg/* exists. 
   commit="$1"
-  echo "$(git describe --abbrev=0 --always --match='pkg/*' $commit)"
+  echo "$(git describe --abbrev=0 --match='pkg/*' $commit 2>/dev/null)"
 }
 
 function parse_tag {
@@ -103,6 +102,18 @@ function get_package_version_from_tag {
   echo "$package"
 }
 
+function get_distribution_from_tag {
+  # tag pkg like pkg/<level>/<distrib>/<version>
+  # <distrib> may be composed
+  set -x
+  tag="$1"
+  distribution="${tag#pkg/*/}"
+  distribution="${distribution%/*}"
+  distribution="${distribution/\//-}"
+  echo $distribution
+  set +x
+}
+
 function get_previous_release_tag {
   # Return previous pkg/* tag or current tag if no previous pkg/* exists. 
   commit="$1"
@@ -113,7 +124,7 @@ function on_pkg_tag {
   # Return 1 if current commit is tagged with pkg/* tag.
   commit="$1"
   nearest_old_pkg_tag="$(get_previous_pkg_tag $commit)"
-  if [ "$(get_hash ${commit})" = "$(get_hash ${nearest_old_pkg_tag})" ]
+  if [ -n "${nearest_old_pkg_tag}" ] && [ "$(get_hash ${commit})" = "$(get_hash ${nearest_old_pkg_tag})" ]
   then
     return 0
   else
@@ -159,13 +170,13 @@ function date_from_commit {
 function packager_from_commit {
   # Return Name <mail> id format, suitable for changelog entry signature
   commit="$1"
-  if [ "${commit}" = "HEAD" ]
+  if on_pkg_tag "${commit}"
   then
-    maintainer="$(git log -n1 --format='%cn <%ce>')"
-  else
     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"
@@ -190,6 +201,7 @@ function next_version {
     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" ]
@@ -219,11 +231,13 @@ function gen_changelog_entry {
   if on_pkg_tag $ceiling_commit
   then
     version="$(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 l’entrée de changelog entre ${ceiling_commit} et ${floor_commit}"