From 82522dbaee8cd5f94267ebf465e36d594e4d2d7a Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 31 Jan 2016 23:29:07 +0000 Subject: [PATCH] build: introduce SOURCE_DATE_EPOCH variable SOURCE_DATE_EPOCH is the date of the last modified file using git/svn as date source. See https://reproducible-builds.org/specs/source-date-epoch/ Signed-off-by: Alexander Couzens Signed-off-by: Felix Fietkau SVN-Revision: 48584 --- include/toplevel.mk | 1 + scripts/get_source_date_epoch.sh | 31 +++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100755 scripts/get_source_date_epoch.sh diff --git a/include/toplevel.mk b/include/toplevel.mk index 0cba07c6e6..97093021ba 100644 --- a/include/toplevel.mk +++ b/include/toplevel.mk @@ -24,6 +24,7 @@ export RELEASE export REVISION export GIT_CONFIG_PARAMETERS='core.autocrlf=false' export MAKE_JOBSERVER=$(filter --jobserver%,$(MAKEFLAGS)) +export SOURCE_DATE_EPOCH:=$(shell $(TOPDIR)/scripts/get_source_date_epoch.sh) # prevent perforce from messing with the patch utility unexport P4PORT P4USER P4CONFIG P4CLIENT diff --git a/scripts/get_source_date_epoch.sh b/scripts/get_source_date_epoch.sh new file mode 100755 index 0000000000..b8efb761d0 --- /dev/null +++ b/scripts/get_source_date_epoch.sh @@ -0,0 +1,31 @@ +#!/usr/bin/env bash +export LANG=C +export LC_ALL=C +[ -n "$TOPDIR" ] && cd $TOPDIR + +try_version() { + [ -f version.date ] || return 1 + SOURCE_DATE_EPOCH="$(cat version.date)" + [ -n "$SOURCE_DATE_EPOCH" ] +} + +try_svn() { + [ -d .svn ] || return 1 + SOURCE_DATE_EPOCH="$(./scripts/portable_date.sh "$(svn info --show-item last-changed-date)" +%s)" + [ -n "$SOURCE_DATE_EPOCH" ] +} + +try_git() { + [ -e .git ] || return 1 + SOURCE_DATE_EPOCH="$(git log -1 --format=format:%ct)" + [ -n "$SOURCE_DATE_EPOCH" ] +} + +try_hg() { + [ -d .hg ] || return 1 + SOURCE_DATE_EPOCH="" + [ -n "$SOURCE_DATE_EPOCH" ] +} + +try_version || try_svn || try_git || try_hg || SOURCE_DATE_EPOCH="" +echo "$SOURCE_DATE_EPOCH"