[Tobias-Fischer]

The update-conda-forge-pinning report (e.g. #94) said which packages to rebuild, but not:

• which pins had changed;
• which packages use a changed pin directly, as opposed to depending on one that does;
• whether any migration was new.

So it wasn't clear why only jazzy rebuilds in #94. The reason is shaderc 2026.3 → 2026.4, which only jazzy's gz_ogre_next_vendor uses; #152 drops that dependency.

Per distribution, the report now shows:

• the changed pins, before → after;
  • those used by packages in a table, with the packages that use them directly;
  • the rest folded away;
• how many packages use a changed pin and how many depend on one, with the direct users listed first;
• the new migrations in bold, or "none new" when the pins change with conda-forge-pinning itself.

A pin whose value only changes its quoting (gfal2 '6' → 6) no longer counts as changed.

Preview from #94's pins (dependency check stubbed out):

humble and jazzy as the new report shows them

Migrations: elfutils0196, go_macos, gsl28, gstreamer128, hdf52, libboost190, libhwloc2150, proj99, urdfdom6; none new (the pins below change with conda-forge-pinning itself); finished (now part of the base pinning): giflib6

humble

Changed pins no package uses (8)

• libopenvino: 2026.4.0 → 2026.4.1
• libopenvino-dev: 2026.4.0 → 2026.4.1
• libtrintrin: (none) → 0.3
• ocaml-compiler: (none) → ocaml
• ocaml-compiler-version: (none) → 5.4.0
• shaderc: 2026.3 → 2026.4
• zig-compiler: (none) → zig
• zig-compiler-version: (none) → 0.17.0

No package uses a changed pin: nothing to rebuild.

Dependency check (linux-64): ✅ no new conflicts

jazzy

changed pin	before → after	used directly by
shaderc	2026.3 → 2026.4	gz_ogre_next_vendor

Changed pins no package uses (7)

• libopenvino: 2026.4.0 → 2026.4.1
• libopenvino-dev: 2026.4.0 → 2026.4.1
• libtrintrin: (none) → 0.3
• ocaml-compiler: (none) → ocaml
• ocaml-compiler-version: (none) → 5.4.0
• zig-compiler: (none) → zig
• zig-compiler-version: (none) → 0.17.0

Rebuild 51 of 1203 packages: 1 uses a changed pin, 50 depend on one. 51 packages get build_number: 28 in distros/jazzy/pkg_additional_info.yaml

Packages to rebuild (51)

• gz_ogre_next_vendor: uses shaderc
• desktop_full: depends on ros_gz_sim_demos
• easynav_playground_kobuki: depends on easynav_playground_kobuki_worlds
• easynav_playground_kobuki_worlds: depends on gz_sim_vendor
• easynav_playground_omni: depends on easynav_playground_omni_worlds
• easynav_playground_omni_worlds: depends on gz_sim_vendor
• easynav_playground_summit: depends on easynav_playground_summit_worlds
• easynav_playground_summit_worlds: depends on gz_sim_vendor
• easynav_playground_tiago: depends on easynav_playground_tiago_worlds
• easynav_playground_tiago_worlds: depends on gz_sim_vendor
• gz_gui_vendor: depends on gz_rendering_vendor
• gz_rendering_vendor: depends on gz_ogre_next_vendor
• gz_ros2_control: depends on gz_sim_vendor
• gz_ros2_control_demos: depends on gz_sim_vendor
• gz_sensors_vendor: depends on gz_rendering_vendor
• gz_sim_vendor: depends on gz_rendering_vendor
• iiwa14_moveit_config: depends on lbr_description
• iiwa7_moveit_config: depends on lbr_description
• irobot_create_gz_bringup: depends on gz_ros2_control
• irobot_create_gz_plugins: depends on gz_gui_vendor
• irobot_create_gz_sim: depends on irobot_create_gz_plugins
• kinova_gen3_7dof_robotiq_2f_85_moveit_config: depends on kortex_description
• kortex_description: depends on gz_ros2_control
• lbr_bringup: depends on gz_ros2_control
• lbr_demos_advanced_cpp: depends on lbr_description
• lbr_demos_advanced_py: depends on lbr_description
• lbr_demos_cpp: depends on lbr_bringup
• lbr_demos_py: depends on lbr_bringup
• lbr_description: depends on gz_ros2_control
• lbr_fri_ros2: depends on lbr_description
• lbr_fri_ros2_stack: depends on lbr_bringup
• lbr_ros2_control: depends on lbr_description
• med14_moveit_config: depends on lbr_description
• med7_moveit_config: depends on lbr_description
• moveit2_tutorials: depends on kinova_gen3_7dof_robotiq_2f_85_moveit_config
• nav2_bringup: depends on ros_gz_sim
• nav2_minimal_tb3_sim: depends on ros_gz_sim
• nav2_minimal_tb4_sim: depends on ros_gz_sim
• ros_gz: depends on ros_gz_sim
• ros_gz_sim: depends on gz_sim_vendor
• ros_gz_sim_demos: depends on gz_sim_vendor
• simulation: depends on ros_gz_sim
• turtlebot3: depends on turtlebot3_navigation2
• turtlebot3_gazebo: depends on gz_sim_vendor
• turtlebot3_navigation2: depends on nav2_bringup
• turtlebot3_simulations: depends on turtlebot3_gazebo
• turtlebot4_gz_bringup: depends on irobot_create_gz_plugins
• turtlebot4_gz_gui_plugins: depends on gz_gui_vendor
• turtlebot4_navigation: depends on nav2_bringup
• turtlebot4_simulator: depends on turtlebot4_gz_gui_plugins
• ur_simulation_gz: depends on gz_ros2_control

Dependency check (linux-64): ✅ no new conflicts

Tests: a new test_pin_report_lists_the_direct_users; all 58 tool tests pass.

When merging: this changes tools/, so the merge regenerates every distribution's build branches and cancels any runs in progress. Best merged after humble's rebuild finishes.

🤖 Generated with Claude Code