gitproxy/RTLPlayground
1
0
Fork 0
mirror of https://github.com/logicog/RTLPlayground.git synced 2026-08-30 14:52:51 +08:00
Code Issues Packages Projects Releases Wiki Activity

makefile: derive BUILD_DATE deterministically

Browse Source 
Honor SOURCE_DATE_EPOCH, falling back to the HEAD commit date and then
to wall-clock when git is absent. Same-commit builds become
byte-identical (BUILD_DATE is baked into the image and covered by the
trailing CRC), which makes it possible to verify that a binary matches
a source tree.
This commit is contained in:
bloqaudio
2026-08-10 15:55:08 -05:00
parent 52692d05b1
commit 6b190eb9f3
1 changed files with 12 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Makefile
+12 -1
View File
@@ -32,6 +32,17 @@ endif
VERSION_EXTENSION = v$(VERSION)-$(GIT_VERSION)
FILENAME_EXTENSION = $(VERSION_EXTENSION)-$(MACHINE)
# Deterministic build date: honor SOURCE_DATE_EPOCH, else the HEAD commit date,
# else wall-clock (no-git fallback). Keeps same-commit builds byte-identical
# (BUILD_DATE is baked into the image and covered by the trailing CRC).
SOURCE_DATE_EPOCH ?= $(shell git show -s --format=%ct HEAD 2>/dev/null)
ifeq ($(SOURCE_DATE_EPOCH),)
BUILD_DATE := $(shell date +"%Y-%m-%d %H:%M:%S")
else
BUILD_DATE := $(shell date -u -d @$(SOURCE_DATE_EPOCH) +"%Y-%m-%d %H:%M:%S" 2>/dev/null \
|| date -u -r $(SOURCE_DATE_EPOCH) +"%Y-%m-%d %H:%M:%S")
endif
all: create_build_dir $(VERSION_HEADER) $(SUBDIRS) $(BUILDDIR)/rtlplayground-$(FILENAME_EXTENSION).bin
create_build_dir:
@@ -84,7 +95,7 @@ $(VERSION_HEADER):
@echo "#ifndef VERSION_H" > $(VERSION_HEADER)
@echo "#define VERSION_H" >> $(VERSION_HEADER)
@echo "#define VERSION_SW \"$(VERSION_EXTENSION)\"" >> $(VERSION_HEADER)
@echo "#define BUILD_DATE \"$(shell date +"%Y-%m-%d %H:%M:%S")\"" >> $(VERSION_HEADER)
@echo "#define BUILD_DATE \"$(BUILD_DATE)\"" >> $(VERSION_HEADER)
@echo "#endif" >> $(VERSION_HEADER)
httpd: html_data.h