2c3632d14f
Lots of code refactoring, simplification and cleanup. Lots of new unit-tests providing much higher code coverage. All courtesy of rillig at netbsd. Other significant changes: o new read-only variable .SHELL which provides the path of the shell used to run scripts (as defined by the .SHELL target). o variable parsing detects more errors. o new debug option -dl: LINT mode, does the equivalent of := for all variable assignments so that file and line number are reported for variable parse errors.
136 lines
2.9 KiB
Bash
Executable File
136 lines
2.9 KiB
Bash
Executable File
#!/bin/sh
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# NAME:
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# stage-install.sh - wrapper around install
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#
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# SYNOPSIS:
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# stage-install.sh [variable="value"] "args" "dest"
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#
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# DESCRIPTION:
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# This script is a wrapper around the normal install(1).
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# Its role is to add '.dirdep' files to the destination.
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# The variables we might use are:
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#
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# INSTALL
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# Path to actual install(1), default is
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# $REAL_INSTALL
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#
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# OBJDIR
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# Path to the dir where '.dirdep' was generated,
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# default is '.'
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#
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# _DIRDEP
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# Path to actual '.dirdep' file, default is
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# $OBJDIR/.dirdep
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#
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# The "args" and "dest" are passed as is to install(1), and if a
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# '.dirdep' file exists it will be linked or copied to each
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# "file".dirdep placed in "dest" or "dest".dirdep if it happed
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# to be a file rather than a directory.
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#
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# Before we run install(1), we check if "dest" needs to be a
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# directory (more than one file in "args") and create it
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# if necessary.
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#
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# SEE ALSO:
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# meta.stage.mk
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#
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# RCSid:
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# $Id: stage-install.sh,v 1.9 2020/08/28 01:04:13 sjg Exp $
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#
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# @(#) Copyright (c) 2013-2020, Simon J. Gerraty
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#
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# This file is provided in the hope that it will
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# be of use. There is absolutely NO WARRANTY.
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# Permission to copy, redistribute or otherwise
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# use this file is hereby granted provided that
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# the above copyright notice and this notice are
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# left intact.
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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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INSTALL=${REAL_INSTALL:-install}
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OBJDIR=.
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while :
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do
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case "$1" in
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*=*) eval "$1"; shift;;
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*) break;;
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esac
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done
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# get last entry from "$@" without side effects
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last_entry() {
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while [ $# -gt 8 ]
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do
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shift 8
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done
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eval last=\$$#
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echo $last
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}
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# mkdir $dest if needed (more than one file)
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mkdir_if_needed() {
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(
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lf=
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while [ $# -gt 8 ]
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do
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shift 4
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done
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for f in "$@"
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do
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[ -f $f ] || continue
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[ $f = $dest ] && continue
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if [ -n "$lf" ]; then
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# dest must be a directory
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mkdir -p $dest
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break
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fi
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lf=$f
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done
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)
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}
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args="$@"
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dest=`last_entry "$@"`
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case " $args " in
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*" -d "*) ;;
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*) [ -e $dest ] || mkdir_if_needed "$@";;
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esac
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# if .dirdep doesn't exist, just run install and be done
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_DIRDEP=${_DIRDEP:-$OBJDIR/.dirdep}
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[ -s $_DIRDEP ] && EXEC= || EXEC=exec
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$EXEC $INSTALL "$@" || exit 1
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# from meta.stage.mk
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LnCp() {
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rm -f $2 2> /dev/null
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ln $1 $2 2> /dev/null || cp -p $1 $2
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}
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StageDirdep() {
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t=$1
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if [ -s $t.dirdep ]; then
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cmp -s $_DIRDEP $t.dirdep && return
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echo "ERROR: $t installed by `cat $t.dirdep` not `cat $_DIRDEP`" >&2
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exit 1
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fi
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LnCp $_DIRDEP $t.dirdep || exit 1
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}
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if [ -f $dest ]; then
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# a file, there can be only one .dirdep needed
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StageDirdep $dest
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elif [ -d $dest ]; then
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for f in $args
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do
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test -f $f || continue
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StageDirdep $dest/${f##*/}
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done
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fi
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