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@@ -92,3 +92,30 @@ Sub-project maintenance
$ git submodule -b stable/mitaka add --name fuel-web \
https://github.com/openstack/fuel-web.git upstream/fuel-web
+
+2. Working with remote tracking for upgrading Fuel components
+ Enable remote tracking as described above, which at `make sub` will update
+ ALL submodules (fuel-main, fuel-library, ...) to remote branch (set in
+ .gitmodules) HEAD.
+
+ * If upstream has NOT already tagged a new version, we can still work on
+ our patches, make sure they apply etc., then check for new upstream
+ changes (and that our patches still apply on top of them) by:
+
+ $ make deepclean patches-import
+
+ * If upstream has already tagged a new version we want to pick up, checkout
+ the new tag in each submodule:
+
+ $ git submodule foreach 'git checkout <newtag>'
+
+ * Once satisfied with the patch and submodule changes, commit them:
+ - enforce FUEL_TRACK_REMOTES to "yes" if you want to constatly use the
+ latest remote branch HEAD (as soon as upstream pushes a change on that
+ branch, our next build will automatically include it - risk of our
+ patches colliding with new upstream changes);
+ - stage patch changes if any;
+ - if submodule tags have been updated (relevant when remote tracking is
+ disabled, i.e. we have a stable upstream baseline), add submodules:
+
+ $ make deepclean sub && git add -f sub/*