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author | Ævar Arnfjörð Bjarmason <avarab@gmail.com> | 2022-03-03 19:04:15 +0300 |
---|---|---|
committer | Junio C Hamano <gitster@pobox.com> | 2022-03-04 01:14:55 +0300 |
commit | f4c6a526a13ad23b941d574e83980a0e81dea38f (patch) | |
tree | 3907cd3c3931a884ccff6e380c8c5868ea7c2a7e /Makefile | |
parent | dafc2deade1a43100e6129755787a91569b82903 (diff) |
Makefile: define $(LIB_H) in terms of $(FIND_SOURCE_FILES)
Combine the definitions of $(FIND_SOURCE_FILES) and $(LIB_H) to speed
up the Makefile, as these are the two main expensive $(shell) commands
that we execute unconditionally.
When see what was in $(FOUND_SOURCE_FILES) that wasn't in $(LIB_H) via
the ad-hoc test of:
$(error $(filter-out $(LIB_H),$(filter %.h,$(ALL_SOURCE_FILES))))
$(error $(filter-out $(ALL_SOURCE_FILES),$(filter %.h,$(LIB_H))))
We'll get, respectively:
Makefile:850: *** t/helper/test-tool.h. Stop.
Makefile:850: *** . Stop.
I.e. we only had a discrepancy when it came to
t/helper/test-tool.h. In terms of correctness this was broken before,
but now works:
$ make t/helper/test-tool.hco
HDR t/helper/test-tool.h
This speeds things up a lot:
$ git -c hyperfine.hook.setup= hyperfine -L rev HEAD~1,HEAD~0 -s 'make NO_TCLTK=Y' 'make -j1 NO_TCLTK=Y' --warmup 10 -M 10
Benchmark 1: make -j1 NO_TCLTK=Y' in 'HEAD~1
Time (mean ± σ): 159.9 ms ± 6.8 ms [User: 137.2 ms, System: 28.0 ms]
Range (min … max): 154.6 ms … 175.9 ms 10 runs
Benchmark 2: make -j1 NO_TCLTK=Y' in 'HEAD~0
Time (mean ± σ): 100.0 ms ± 1.3 ms [User: 84.2 ms, System: 20.2 ms]
Range (min … max): 98.8 ms … 102.8 ms 10 runs
Summary
'make -j1 NO_TCLTK=Y' in 'HEAD~0' ran
1.60 ± 0.07 times faster than 'make -j1 NO_TCLTK=Y' in 'HEAD~1'
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'Makefile')
-rw-r--r-- | Makefile | 54 |
1 files changed, 26 insertions, 28 deletions
@@ -833,12 +833,33 @@ GENERATED_H += hook-list.h .PHONY: generated-hdrs generated-hdrs: $(GENERATED_H) -LIB_H := $(sort $(patsubst ./%,%,$(shell git ls-files '*.h' ':!t/' ':!Documentation/' 2>/dev/null || \ +## Exhaustive lists of our source files, either dynamically generated, +## or hardcoded. +SOURCES_CMD = ( \ + git ls-files \ + '*.[hcS]' \ + '*.sh' \ + ':!*[tp][0-9][0-9][0-9][0-9]*' \ + ':!contrib' \ + 2>/dev/null || \ $(FIND) . \ - -name .git -prune -o \ - -name t -prune -o \ - -name Documentation -prune -o \ - -name '*.h' -print))) + \( -name .git -type d -prune \) \ + -o \( -name '[tp][0-9][0-9][0-9][0-9]*' -prune \) \ + -o \( -name contrib -type d -prune \) \ + -o \( -name build -type d -prune \) \ + -o \( -name 'trash*' -type d -prune \) \ + -o \( -name '*.[hcS]' -type f -print \) \ + -o \( -name '*.sh' -type f -print \) \ + | sed -e 's|^\./||' \ + ) +FOUND_SOURCE_FILES := $(shell $(SOURCES_CMD)) + +FOUND_C_SOURCES = $(filter %.c,$(FOUND_SOURCE_FILES)) +FOUND_H_SOURCES = $(filter %.h,$(FOUND_SOURCE_FILES)) + +COCCI_SOURCES = $(filter-out $(THIRD_PARTY_SOURCES),$(FOUND_C_SOURCES)) + +LIB_H = $(FOUND_H_SOURCES) LIB_OBJS += abspath.o LIB_OBJS += add-interactive.o @@ -2789,26 +2810,6 @@ perl/build/man/man3/Git.3pm: perl/Git.pm $(QUIET_GEN)mkdir -p $(dir $@) && \ pod2man $< $@ -FIND_SOURCE_FILES = ( \ - git ls-files \ - '*.[hcS]' \ - '*.sh' \ - ':!*[tp][0-9][0-9][0-9][0-9]*' \ - ':!contrib' \ - 2>/dev/null || \ - $(FIND) . \ - \( -name .git -type d -prune \) \ - -o \( -name '[tp][0-9][0-9][0-9][0-9]*' -prune \) \ - -o \( -name contrib -type d -prune \) \ - -o \( -name build -type d -prune \) \ - -o \( -name 'trash*' -type d -prune \) \ - -o \( -name '*.[hcS]' -type f -print \) \ - -o \( -name '*.sh' -type f -print \) \ - | sed -e 's|^\./||' \ - ) - -FOUND_SOURCE_FILES = $(shell $(FIND_SOURCE_FILES)) - $(ETAGS_TARGET): $(FOUND_SOURCE_FILES) $(QUIET_GEN)$(RM) $@+ && \ echo $(FOUND_SOURCE_FILES) | xargs etags -a -o $@+ && \ @@ -3018,9 +3019,6 @@ check: $(GENERATED_H) exit 1; \ fi -FOUND_C_SOURCES = $(filter %.c,$(FOUND_SOURCE_FILES)) -COCCI_SOURCES = $(filter-out $(THIRD_PARTY_SOURCES),$(FOUND_C_SOURCES)) - %.cocci.patch: %.cocci $(COCCI_SOURCES) $(QUIET_SPATCH) \ if test $(SPATCH_BATCH_SIZE) = 0; then \ |