[src/trunk]: src Handle git and mercurial for reproducible builds.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/e2ebdef6f744
branches:  trunk
changeset: 983339:e2ebdef6f744
user:      christos <christos%NetBSD.org@localhost>
date:      Mon May 17 13:50:39 2021 +0000

description:
Handle git and mercurial for reproducible builds.

diffstat:

 build.sh |  40 ++++++++++++++++++++++++++++++++++++----
 1 files changed, 36 insertions(+), 4 deletions(-)

diffs (74 lines):

diff -r 78b8602ea9c9 -r e2ebdef6f744 build.sh
--- a/build.sh  Mon May 17 08:50:36 2021 +0000
+++ b/build.sh  Mon May 17 13:50:39 2021 +0000
@@ -1,5 +1,5 @@
 #! /usr/bin/env sh
-#      $NetBSD: build.sh,v 1.348 2021/05/14 22:06:34 christos Exp $
+#      $NetBSD: build.sh,v 1.349 2021/05/17 13:50:39 christos Exp $
 #
 # Copyright (c) 2001-2011 The NetBSD Foundation, Inc.
 # All rights reserved.
@@ -1973,7 +1973,7 @@
        eval cat <<EOF ${makewrapout}
 #! ${HOST_SH}
 # Set proper variables to allow easy "make" building of a NetBSD subtree.
-# Generated from:  \$NetBSD: build.sh,v 1.348 2021/05/14 22:06:34 christos Exp $
+# Generated from:  \$NetBSD: build.sh,v 1.349 2021/05/17 13:50:39 christos Exp $
 # with these arguments: ${_args}
 #
 
@@ -2304,20 +2304,52 @@
        if [ ${MKREPRO-no} != "yes" ]; then
                return
        fi
+
        local dirs=${NETBSDSRCDIR-/usr/src}/
        if [ ${MKX11-no} = "yes" ]; then
                dirs="$dirs ${X11SRCDIR-/usr/xsrc}/"
        fi
+
        local cvslatest=$(print_tooldir_program cvslatest)
        if [ ! -x "${cvslatest}" ]; then
                buildtools
        fi
+
        local cvslatestflags=
        if ${do_expertmode}; then
                cvslatestflags=-i
        fi
-       MKREPRO_TIMESTAMP=$("${cvslatest}" ${cvslatestflags} ${dirs})
-       [ -n "${MKREPRO_TIMESTAMP}" ] || bomb "Failed to compute timestamp"
+
+       MKREPRO_TIMESTAMP=0
+       local d
+       local t
+       local vcs
+       for d in ${dirs}; do
+               if [ -d "${d}CVS" ]; then
+                       t=$("${cvslatest}" ${cvslatestflags} "${d}")
+                       vcs=cvs
+               elif [ -d "${d}.git" ]; then
+                       t=$(cd "${d}" && git log -1 --format=%ct)
+                       vcs=git
+               elif [ -d "${d}.hg" ]; then
+                       t=$(cd "${d}" &&
+                           hg log -l1 --template '{date(date, "%s")}\n')
+                       vcs=hg
+               else
+                       bomb "Cannot determine VCS for '$d'"
+               fi
+
+               if [ -z "$t" ]; then
+                       bomb "Failed to get timestamp for vcs=$vcs in '$d'"
+               fi
+
+               #echo "latest $d $vcs $t"
+               if [ "$t" -gt "$MKREPRO_TIMESTAMP" ]; then
+                       MKREPRO_TIMESTAMP="$t"
+               fi
+       done
+
+       [ "${MKREPRO_TIMESTAMP}" != "0" ] || bomb "Failed to compute timestamp"
        statusmsg2 "MKREPRO_TIMESTAMP" "$(TZ=UTC date -r ${MKREPRO_TIMESTAMP})"
        export MKREPRO MKREPRO_TIMESTAMP
 }