Re: What's cooking in git.git (Dec 2020, #01; Tue, 8)

>
> * en/diffcore-rename (2020-12-07) 5 commits
>  - diffcore-rename: simplify and accelerate register_rename_src()
>  - diffcore-rename: reduce jumpiness in progress counters
>  - diffcore-rename: rename num_create to num_targets
>  - diffcore-rename: remove unnecessary if-clause
>  - diffcore-rename: avoid usage of global in too_many_rename_candidates()

> * en/merge-ort-2 (2020-12-08) 7 commits
>  - merge-ort: add modify/delete handling and delayed output processing
>  - merge-ort: add die-not-implemented stub handle_content_merge() function
>  - merge-ort: add function grouping comments
>  - merge-ort: add a paths_to_free field to merge_options_internal
>  - merge-ort: add a path_conflict field to merge_options_internal
>  - merge-ort: add a clear_internal_opts helper
>  - merge-ort: add a few includes
>  (this branch uses en/merge-ort-impl.)
>
>  More "ORT" merge strategy.
>
>  Needs review.

> [Stalled]
>
> * mt/grep-sparse-checkout (2020-12-06) 10 commits
>  - t7817: do not depend on any specific default branch name
>  - config: add setting to ignore sparsity patterns in some cmds
>  - grep: honor sparse checkout patterns
>  - config: correctly read worktree configs in submodules
>  - config: make do_git_config_sequence receive a 'struct repository'
>  - t/helper/test-config: unify exit labels
>  - t/helper/test-config: diagnose missing arguments
>  - t/helper/test-config: be consistent with exit codes
>  - t1308-config-set: avoid false positives when using test-config
>  - doc: grep: unify info on configuration variables
>  (this branch is used by mt/rm-sparse-checkout.)
>
>  "git grep" has been tweaked to be limited to the sparse checkout
>  paths.
>
>
> * mt/rm-sparse-checkout (2020-12-08) 1 commit
>  - rm: honor sparse checkout patterns
>  (this branch uses mt/grep-sparse-checkout.)
>
>  "git rm" follows suit to "git grep" to ignore paths outside the
>  sparsity pattern when the sparse checkout feature is in use.
>
>  Need to wait for how these fit in larger picture.
>  cf. <CABPp-BGMX3wb7LiS1HkJpGveoW3J1oR0vVHbKTF5+qYLRF+59g@mail.gmail.com>

> * so/log-diff-merge (2020-11-09) 27 commits
>  - doc/git-show: include --diff-merges description
>  - doc/rev-list-options: document --first-parent implies --diff-merges=first-parent
>  - doc/diff-generate-patch: mention new --diff-merges option
>  - doc/git-log: describe new --diff-merges options
>  - t4013: add test for --diff-merges=first-parent
>  - diff-merges: implement new values for --diff-merges
>  - diff-merges: make -m/-c/--cc explicitly mutually exclusive
>  - diff-merges: refactor opt settings into separate functions
>  - diff-merges: get rid of now empty diff_merges_init_revs()
>  - diff-merges: group diff-merge flags next to each other inside 'rev_info'
>  - diff-merges: split 'ignore_merges' field
>  - diff-merges: fix -m to properly override -c/--cc
>  - t4013: add tests for -m failing to override -c/--cc
>  - t4013: support test_expect_failure through ':failure' magic
>  - diff-merges: revise revs->diff flag handling
>  - diff-merges: introduce revs->first_parent_merges flag
>  - diff-merges: new function diff_merges_set_dense_combined_if_unset()
>  - diff-merges: new function diff_merges_suppress()
>  - diff-merges: re-arrange functions to match the order they are called in
>  - diff-merges: rename diff_merges_default_to_enable() to match semantics
>  - diff-merges: move checks for first_parent_only out of the module
>  - diff-merges: rename all functions to have common prefix
>  - revision: move diff merges functions to its own diff-merges.c
>  - revision: provide implementation for diff merges tweaks
>  - revision: factor out initialization of diff-merge related settings
>  - revision: factor out setup of diff-merge related settings
>  - revision: factor out parsing of diff-merge related options
>
>  "git log" learned a new "--diff-merges=<how>" option.
>
>  Needs review.

> * en/merge-ort-impl (2020-12-06) 21 commits
>  - merge-ort: free data structures in merge_finalize()
>  - merge-ort: add implementation of record_conflicted_index_entries()
>  - tree: enable cmp_cache_name_compare() to be used elsewhere
>  - merge-ort: add implementation of checkout()
>  - merge-ort: basic outline for merge_switch_to_result()
>  - merge-ort: step 3 of tree writing -- handling subdirectories as we go
>  - merge-ort: step 2 of tree writing -- function to create tree object
>  - merge-ort: step 1 of tree writing -- record basenames, modes, and oids
>  - merge-ort: have process_entries operate in a defined order
>  - merge-ort: add a preliminary simple process_entries() implementation
>  - merge-ort: avoid recursing into identical trees
>  - merge-ort: record stage and auxiliary info for every path
>  - merge-ort: compute a few more useful fields for collect_merge_info
>  - merge-ort: avoid repeating fill_tree_descriptor() on the same tree
>  - merge-ort: implement a very basic collect_merge_info()
>  - merge-ort: add an err() function similar to one from merge-recursive
>  - merge-ort: use histogram diff
>  - merge-ort: port merge_start() from merge-recursive
>  - merge-ort: add some high-level algorithm structure
>  - merge-ort: setup basic internal data structures
>  - Merge branch 'en/strmap' into en/merge-ort-impl
>  (this branch is used by en/merge-ort-2.)
>
>  Needs review.