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bpo-45696: Use a stamp file to speed up rebuild by tiran · Pull Request #29522 · python/cpython · GitHub

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  2. cpython

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bpo-45696: Use a stamp file to speed up rebuild #29522

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bpo-45696: Use a stamp file to speed up rebuild #29522

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1 change: 1 addition & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
Expand Up @@ -60,6 +60,7 @@ Lib/lib2to3/*.pickle
Lib/test/data/*
!Lib/test/data/README
/_bootstrap_python
/_bootstrap_python-stamp
/Makefile
/Makefile.pre
Mac/Makefile
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19 changes: 16 additions & 3 deletions Makefile.pre.in
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Original file line number Diff line number Diff line change
Expand Up @@ -259,7 +259,9 @@ LIBOBJS= @LIBOBJS@

PYTHON= python$(EXE)
BUILDPYTHON= python$(BUILDEXE)

BOOTSTRAP= _bootstrap_python
BOOTSTRAP_STAMP= $(BOOTSTRAP)-stamp

PYTHON_FOR_REGEN?=@PYTHON_FOR_REGEN@
UPDATE_FILE=$(PYTHON_FOR_REGEN) $(srcdir)/Tools/scripts/update_file.py
Expand Down Expand Up @@ -628,7 +630,7 @@ platform: $(BUILDPYTHON) pybuilddir.txt
# problems by creating a dummy pybuilddir.txt just to allow interpreter
# initialization to succeed. It will be overwritten by generate-posix-vars
# or removed in case of failure.
pybuilddir.txt: $(BOOTSTRAP)
pybuilddir.txt: $(BOOTSTRAP_STAMP)
@echo "none" > ./pybuilddir.txt
./$(BOOTSTRAP) -S -m sysconfig --generate-posix-vars ;\
if test $$? -ne 0 ; then \
Expand Down Expand Up @@ -781,14 +783,25 @@ $(BOOTSTRAP): $(LIBRARY_OBJS_OMIT_FROZEN) \
Programs/python.o \
$(LIBS) $(MODLIBS) $(SYSLIBS)

# Use a stamp file to avoid recompiling the bootstrap interpreter and all
# deepfrozen files whenever a core file is changed, see bpo-45696.
# NOTE: $(.MAKE) is required for BSD make.
$(BOOTSTRAP_STAMP):
@if test -n "$(MAKE)"; then \
$(MAKE) $(BOOTSTRAP) || exit 2; \
else \
$(.MAKE) $(BOOTSTRAP) || exit 2; \
fi
@touch $@

############################################################################
# Deepfreeze targets

.PHONY: regen-deepfreeze
regen-deepfreeze: $(DEEPFREEZE_OBJS)

DEEPFREEZE_DEPS = \
$(BOOTSTRAP) \
$(BOOTSTRAP_STAMP) \
pybuilddir.txt \
$(srcdir)/Tools/scripts/deepfreeze.py

Expand Down Expand Up @@ -2195,7 +2208,7 @@ clean-retain-profile: pycremoval
find build -name '*.py[co]' -exec rm -f {} ';' || true
-rm -f pybuilddir.txt
-rm -f Lib/lib2to3/*Grammar*.pickle
-rm -f Programs/_testembed Programs/_freeze_module $(BOOTSTRAP)
-rm -f Programs/_testembed Programs/_freeze_module $(BOOTSTRAP) $(BOOTSTRAP_STAMP)
-rm -f Python/deepfreeze/*.[co]
-find build -type f -a ! -name '*.gc??' -exec rm -f {} ';'
-rm -f Include/pydtrace_probes.h
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