Bug#913021: carbon-c-relay: make the build reproducible
Source: carbon-c-relay
Version: 3.2-1
Severity: wishlist
Tags: patch
X-Debbugs-Cc: reproducible-b...@lists.alioth.debian.org
Hi there,
While working on the reproducible builds project
(https://wiki.debian.org/ReproducibleBuilds), we noticed that
carbon-c-relay could not be built reproducibly.
The attached patch changes the build system to first attempt to use
the SOURCE_DATE_EPOCH envvar
(https://reproducible-builds.org/specs/source-date-epoch/) to
determine build date, then falls back to the git commit date, then the
current date.
Best,
-Nick Gregory
begin patch
--- Makefile.am.orig 2017-10-21 10:39:41.0 -0400
+++ Makefile.am 2018-11-05 22:45:30.772368908 -0500
@@ -16,7 +16,11 @@
CFLAGS ?= -O2 -Wall -Wshadow -pipe
-GIT_VERSION := $(shell git describe --abbrev=6 --dirty --always
2>/dev/null || date +%F)
+GIT_VERSION := $(shell \
+ date -u -d "@${SOURCE_DATE_EPOCH}" "+%F" 2>/dev/null || \
+ date -u -r "${SOURCE_DATE_EPOCH}" "+%F" 2>/dev/null || \
+ git describe --abbrev=6 --dirty --always 2>/dev/null || \
+ date +%F)
GVCFLAGS = -DGIT_VERSION=\"$(GIT_VERSION)\"
override CFLAGS += $(GVCFLAGS) -pthread
Bug#912299: blender: make the build reproducible
Source: blender
Version: 2.79.b+dfsg0-4
Severity: wishlist
Tags: patch
X-Debbugs-Cc: reproducible-bui...@lists.alioth.debian.org
Hi there,
While working on the reproducible builds project
(https://wiki.debian.org/ReproducibleBuilds), we noticed that blender
could not be built reproducibly.
The attached patch changes the build system to use the
SOURCE_DATE_EPOCH envvar (if set) in place of the current build
date/time to make blender build reproducibly.
Best,
-Nick Gregory
begin patch
diff --git a/build_files/cmake/buildinfo.cmake
b/build_files/cmake/buildinfo.cmake
index a43b99f..ab7d3e3 100644
--- a/build_files/cmake/buildinfo.cmake
+++ b/build_files/cmake/buildinfo.cmake
@@ -148,12 +148,21 @@ endif()
# BUILD_PLATFORM and BUILD_PLATFORM are taken from CMake
# but BUILD_DATE and BUILD_TIME are platform dependent
if(UNIX)
- if(NOT BUILD_DATE)
- execute_process(COMMAND date "+%Y-%m-%d"
OUTPUT_VARIABLE BUILD_DATE OUTPUT_STRIP_TRAILING_WHITESPACE)
- endif()
- if(NOT BUILD_TIME)
- execute_process(COMMAND date "+%H:%M:%S"
OUTPUT_VARIABLE BUILD_TIME OUTPUT_STRIP_TRAILING_WHITESPACE)
- endif()
+if(DEFINED ENV{SOURCE_DATE_EPOCH})
+execute_process(COMMAND "date" "-u" "-d"
"@$ENV{SOURCE_DATE_EPOCH}" "+%Y-%m-%d"
+OUTPUT_VARIABLE BUILD_DATE
+OUTPUT_STRIP_TRAILING_WHITESPACE)
+execute_process(COMMAND "date" "-u" "-d"
"@$ENV{SOURCE_DATE_EPOCH}" "+%H:%M:%S"
+OUTPUT_VARIABLE BUILD_TIME
+OUTPUT_STRIP_TRAILING_WHITESPACE)
+else()
+if(NOT BUILD_DATE)
+execute_process(COMMAND date "+%Y-%m-%d" OUTPUT_VARIABLE
BUILD_DATE OUTPUT_STRIP_TRAILING_WHITESPACE)
+endif()
+if(NOT BUILD_TIME)
+execute_process(COMMAND date "+%H:%M:%S" OUTPUT_VARIABLE
BUILD_TIME OUTPUT_STRIP_TRAILING_WHITESPACE)
+endif()
+endif()
elseif(WIN32)
if(NOT BUILD_DATE)
execute_process(COMMAND cmd /c date /t OUTPUT_VARIABLE
BUILD_DATE OUTPUT_STRIP_TRAILING_WHITESPACE)
