Date: Wed, 7 Nov 2018 20:36:57 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r340238 - head/sys/conf Message-ID: <201811072036.wA7KavGZ011233@repo.freebsd.org>
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Author: emaste Date: Wed Nov 7 20:36:57 2018 New Revision: 340238 URL: https://svnweb.freebsd.org/changeset/base/340238 Log: newvers.sh: avoid regenerating vers.c if content unchanged When reproducible build mode is enabled vers.c may be unchanged between successive builds. In this case avoid changing the file's metadata so that it does not cause dependent targets to be rebuilt. Sponsored by: The FreeBSD Foundation Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D17892 Modified: head/sys/conf/newvers.sh Modified: head/sys/conf/newvers.sh ============================================================================== --- head/sys/conf/newvers.sh Wed Nov 7 20:31:36 2018 (r340237) +++ head/sys/conf/newvers.sh Wed Nov 7 20:36:57 2018 (r340238) @@ -328,7 +328,7 @@ else VERSTR="${VERINFO}\\n ${u}@${h}:${d}\\n" fi -cat << EOF > vers.c +vers_content_new=$(cat << EOF $COPYRIGHT #define SCCSSTR "@(#)${VERINFO}" #define VERSTR "${VERSTR}" @@ -342,5 +342,10 @@ char osrelease[sizeof(RELSTR) > 32 ? sizeof(RELSTR) : int osreldate = ${RELDATE}; char kern_ident[] = "${i}"; EOF +) +vers_content_old=$(cat vers.c 2>/dev/null || true) +if [ "$vers_content_new" != "$vers_content_old" ]; then + echo "$vers_content_new" > vers.c +fi echo $((v + 1)) > version
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