Add an AGL revision to the RPM package

* To update a rpm file (with dnf) we need to have a valid rpm revision.

  Let 2 packages pkg_1 and pkg_2 (built in yocto).
  If pkg_2 is newer than pkg_1, and one wants to be able to update it
  with dnf, it must respect some rpm naming rules.

  if ${pkg_2_name} > ${pkg_1_name}
     -> pkg_2 is newer than pkg_1
  elif ${pkg_2_name} = ${pkg_1_name} and ${pkg_2_revision} > ${pkg_1_revision}
     -> pkg_2 is newer than pkg_1
  else
     -> pkg_2 is equal or older than pkg_1

  Currently, the Yocto build process (used by AGL, so whithout special service)
  doesn't change revisions for a build. So packages are not updatable from a repository
  with dnf.

* This patch adds an option -r|--rpm-revision <schema> to aglsetup.sh so that RPMs
  produced by bitbake will have correct revisions suitable for binary publishing.

  <schema> can be:
    'prservice[:<address>]' : Use a PR service daemon.
        if <address> is not specified, the default value 'localhost:0'
        is used (shortcut for a PR service started by bitbake)
    'timestamp' : Use a generated time stamp (UTC).
    'value:<revision>' : Use <revision> explicitly.
    'none' : Do nothing.

p16: change --rpm-revision options parsing, use UTC timestamps, refactor code
p19: remove smart parsing of host:port for prservice option - back to dumb option

Bug-AGL: SPEC-920

Change-Id: I1f4c9fd093fa350d19450a12ac1847885740596d
Signed-off-by: Ronan Le Martret <ronan.lemartret@iot.bzh>
Signed-off-by: Johann CAHIER <johann.cahier@iot.bzh>
Signed-off-by: Ronan Le Martret <ronan.lemartret@iot.bzh>
Signed-off-by: Stephane Desneux <stephane.desneux@iot.bzh>

1 files changed, 68 insertions, 0 deletions

diff --git a/templates/base/01_setup_pkg_revision.sh b/templates/base/01_setup_pkg_revision.sh
new file mode 100644
index 000000000..af82c0988
--- /dev/null
+++ b/templates/base/01_setup_pkg_revision.sh
@@ -0,0 +1,68 @@
+# use a function to be neutral with other fragments
+function 01_setup_pkg_revision() {
+    # BASH_SOURCE can't be used as this fragment is concatenated in a larger script
+    local THIS=meta-agl/templates/base/01_setup_pkg_revision.sh
+
+    # RPMREVISION and LOCALCONF must be set previously in the setup script
+    [[ -z "$RPMREVISION" || -z "$LOCALCONF" ]] && return 0
+
+    echo "INFO: using RPM revision schema $RPMREVISION"
+
+    cat <<EOF >> $LOCALCONF
+
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+# fragment {
+# generated by $THIS "$RPMREVISION"
+#
+
+EOF
+
+    case "$RPMREVISION" in
+        prservice*)
+            [[ $RPMREVISION =~ ^prservice(:([^ \t\n]+))?$ ]] && {
+                echo "PRSERV_HOST ?= \"${BASH_REMATCH[2]:-localhost:0}\"" >> $LOCALCONF
+            } || {
+                echo "ERROR ($THIS): invalid address specified for PR Service"
+                return 1
+            }
+            ;;
+        timestamp)
+            AGL_PR=$(date --utc '+%Y%m%d.%H%M%S')
+            cat <<'EOF' >> $LOCALCONF
+# to re-generate AGL_PR the same way as aglsetup does, run:
+#   echo "AGL_PR ?= \"$(date --utc '+%Y%m%d.%H%M%S')\""
+EOF
+            echo "AGL_PR ?= \"${AGL_PR}\"" >> $LOCALCONF;
+            cat <<'EOF' >> $LOCALCONF
+PKGR_append = ".${AGL_PR}"
+PKGV = "${@ '${PV}'.replace('AUTOINC','${AGL_PR}')}"
+BB_HASHBASE_WHITELIST_append = " PKGR PKGV"
+EOF
+            ;;
+        value:*)
+            echo "AGL_PR ?= \"${RPMREVISION#value:}\"" >> $LOCALCONF;
+            cat <<'EOF' >> $LOCALCONF
+PKGR_append = ".${AGL_PR}"
+PKGV = "${@ '${PV}'.replace('AUTOINC','${AGL_PR}')}"
+BB_HASHBASE_WHITELIST_append = " PKGR PKGV"
+EOF
+            ;;
+        none)
+            # do nothing
+            ;;
+        *)
+            echo "ERROR ($THIS): unknown package revision method '$REVISION'"
+            return 1
+            ;;
+    esac
+
+    cat <<'EOF' >> $LOCALCONF
+
+#
+# }
+# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
+EOF
+
+}
+
+01_setup_pkg_revision