Simon J. Gerraty
9bbb08f905
Update to the latest makefiles etc from bmake. Mostly this just replaces sjg license with an SPDX tag. There are also some improvements to meta2deps* and optimizations to leverage POSIX shell features in some target scripts. Default isPOSIX_SHELL to ':' in sys.mk to enable these. Use :sh1 in M_type if possible. bsd.progs.mk has diverged too much to touch beyond making the SPDX tag update. Reviewed by: stevek Differential Revision: https://reviews.freebsd.org/D54150
60 lines
1.4 KiB
Makefile
60 lines
1.4 KiB
Makefile
# $Id: install-new.mk,v 1.9 2025/11/19 17:44:15 sjg Exp $
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#
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# @(#) Copyright (c) 2009, Simon J. Gerraty
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Please send copies of changes and bug-fixes to:
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# sjg@crufty.net
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#
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.if !defined(InstallNew)
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# How do we want CmpCpMv to do the final operation?
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# the backup (if any) will use the opposite.
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CPMV_OP ?= mv
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# clear this if not supported
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CPMV_f ?= -f
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# copy/move if src and target are different making a backup if desired
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CmpCpMv= CmpCpMv() { \
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src=$$1 target=$$2 _bak=$$3; \
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if ! test -s $$target || ! cmp -s $$target $$src; then \
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trap "" 1 2 3 15; \
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case "/${CPMV_OP}" in */cp) bop=mv;; */mv) bop=cp;; esac; \
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if test -s $$target; then \
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if test "x$$_bak" != x; then \
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rm -f $$target$$_bak; \
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$$bop ${CPMV_f} $$target $$target$$_bak; \
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else \
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rm -f $$target; \
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fi; \
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fi; \
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${CPMV_OP} ${CPMV_f} $$src $$target; \
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fi; }
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# If the .new file is different, we want it.
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# Note: this function will work as is for *.new$RANDOM"
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InstallNew= ${CmpCpMv}; InstallNew() { \
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_t=-e; _bak=; \
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while :; do \
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case "$$1" in \
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-?) _t=$$1; shift;; \
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--bak) _bak=$$2; shift 2;; \
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*) break;; \
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esac; \
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done; \
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for new in "$$@"; do \
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if test $$_t $$new; then \
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if ${isPOSIX_SHELL:Ufalse}; then \
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target=$${new%.new}; \
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else \
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target=`expr $$new : '\(.*\).new'`; \
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fi; \
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CmpCpMv $$new $$target $$_bak; \
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fi; \
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rm -f $$new; \
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done; :; }
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.endif
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