This is a smaller v2 of the series to remove the kwset backend and make pickaxe use PCRE v2[1]. That's not being done here yet. These are mostly small refactoring/test fixes. The most significant work is a new xdiff interface at the end of the series. It's based on next where some preparatory work already landed[2]. The endless loop bug in v1 pointed out by René Scharfe[3] is gone. We should still have a test for that, I didn't have time to do more on that, and figured this was already getting large enough. I'll do some more improvements of test coverage in a follow-up series. I'm aware of various blind spots in pickaxe test coverage, but none of it should hide a bug in this refactoring from us. It's things like how we deal with REG_NEWLINE, "^" matches etc., but all the matching logic for that stays the same in this series. 1. https://lore.kernel.org/git/20210203032811.14979-1-avarab@xxxxxxxxx/ 2. https://lore.kernel.org/git/20210204210556.25242-1-avarab@xxxxxxxxx/ 3. https://lore.kernel.org/git/4ef09db7-34f2-2fb5-b9e9-be69c7102787@xxxxxx/ Ævar Arnfjörð Bjarmason (22): grep/pcre2 tests: reword comments referring to kwset test-lib-functions: document and test test_commit --no-tag test-lib-functions: reword "test_commit --append" docs test-lib functions: add --printf option to test_commit pickaxe tests: refactor to use test_commit --append --printf pickaxe tests: add test for diffgrep_consume() internals pickaxe tests: add test for "log -S" not being a regex pickaxe tests: test for -G, -S and --find-object incompatibility pickaxe: die when -G and --pickaxe-regex are combined pickaxe: die when --find-object and --pickaxe-all are combined diff.h: move pickaxe fields together again pickaxe/style: consolidate declarations and assignments perf: add performance test for pickaxe pickaxe: refactor function selection in diffcore-pickaxe() pickaxe: assert that we must have a needle under -G or -S pickaxe -S: support content with NULs under --pickaxe-regex pickaxe: rename variables in has_changes() for brevity pickaxe -S: slightly optimize contains() xdiff-interface: allow early return from xdiff_emit_{line,hunk}_fn xdiff-interface: support early exit in xdiff_outf() pickaxe -G: terminate early on matching lines pickaxe -G: don't special-case create/delete combine-diff.c | 9 ++- diff.c | 45 +++++++++------ diff.h | 7 ++- diffcore-pickaxe.c | 99 ++++++++++++++++++-------------- range-diff.c | 8 ++- t/perf/p4209-pickaxe.sh | 70 +++++++++++++++++++++++ t/t0000-basic.sh | 19 +++++++ t/t1307-config-blob.sh | 4 +- t/t2030-unresolve-info.sh | 3 +- t/t4006-diff-mode.sh | 6 +- t/t4030-diff-textconv.sh | 8 +-- t/t4209-log-pickaxe.sh | 100 +++++++++++++++++++++++++++------ t/t5520-pull.sh | 10 +--- t/t7816-grep-binary-pattern.sh | 4 +- t/test-lib-functions.sh | 23 ++++++-- xdiff-interface.c | 26 ++++++--- xdiff-interface.h | 36 +++++++++--- 17 files changed, 349 insertions(+), 128 deletions(-) create mode 100755 t/perf/p4209-pickaxe.sh -- 2.30.0.284.gd98b1dd5eaa7