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build: SDK/IB reproducible and faster compression

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Both IB and SDK now use the same logic for packing.

This commit add reproducible multithread compression to the SDK and
corrects the file mtime for both. Previously all files where just copied
over from the build system, generating random mtimes.

Signed-off-by: Paul Spooren <mail@aparcar.org>
This commit is contained in:
Paul Spooren 2020-08-13 13:46:43 -10:00 committed by Matthias Schiffer
parent 1cf842dd13
commit 8c9a788172
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GPG Key ID: 16EF3F64CB201D9C
2 changed files with 6 additions and 2 deletions
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5
target/imagebuilder/Makefile
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@ -86,7 +86,10 @@ endif
(cd $(PKG_BUILD_DIR); find staging_dir/host/bin/ $(IB_LDIR)/scripts/dtc/ -type f | \
$(XARGS) $(SCRIPT_DIR)/bundle-libraries.sh $(PKG_BUILD_DIR)/staging_dir/host)
STRIP=sstrip $(SCRIPT_DIR)/rstrip.sh $(PKG_BUILD_DIR)/staging_dir/host/bin/
$(TAR) -cf - -C $(BUILD_DIR) $(IB_NAME) | xz -T$(if $(filter 1,$(NPROC)),2,0) -zc -7e > $@
(cd $(BUILD_DIR); \
tar -I '$(STAGING_DIR_HOST)/bin/xz -7e -T$(if $(filter 1,$(NPROC)),2,0)' -cf $@ $(IB_NAME) \
--mtime="$(shell date --date=@$(SOURCE_DATE_EPOCH))"; \
)
download:
prepare:

3
target/sdk/Makefile
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@ -152,7 +152,8 @@ $(BIN_DIR)/$(SDK_NAME).tar.xz: clean
find $(SDK_BUILD_DIR) -name CVS | $(XARGS) rm -rf
-make -C $(SDK_BUILD_DIR)/scripts/config clean
(cd $(BUILD_DIR); \
tar -I 'xz -7e' -cf $@ $(SDK_NAME); \
tar -I '$(STAGING_DIR_HOST)/bin/xz -7e -T$(if $(filter 1,$(NPROC)),2,0)' -cf $@ $(SDK_NAME) \
--mtime="$(shell date --date=@$(SOURCE_DATE_EPOCH))"; \
)
download: