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#!/bin/sh -eu
usage() {
abort "usage: tm update-tree [-m <mode>] <tree> <path> <new-ref>"
}
mode="default"
while getopts m: opt; do
case "$opt" in
m)
mode="$OPTARG"
;;
?)
usage
;;
esac
done
shift "$((OPTIND - 1))"
. "$(dirname -- "$0")/lib.sh"
[ $# -ne 3 ] && usage
[ "z$mode" = "zdefault" ] \
&& mode="$(tm resolve-path -f mode -- "$1" "$2" 2>/dev/null || echo 755)"
tmp="$TMPDIR/update-tree"
dirref="$(tm resolve-path "$1" "$(dirname -- "$2")" || true)"
if [ -z "$dirref" ]; then
dirref="$(tm update-tree "$1" "$(dirname -- "$2")" "$(echo tree | write)")"
dirref="$(tm resolve-path "$dirref" "$(basename -- "$(dirname -- "$2")")")"
fi
path="$(basename -- "$2")"
new="$(tm resolve-ref "$3")" || abort "error: invalid ref $3"
tm cat "$dirref" | awk -v"new=$mode $new $path" -v"path=$path" '
BEGIN { found="0" }
{
if ($3 == path) {
print new;
found="1";
} else {
print $0;
}
}
END {
if (found == "0") {
print new;
}
}
' >"$tmp"
[ "z$2" = "z/" ] || [ "z$2" = "z." ] && printf "%s\n" "$3" && exit
exec tm update-tree "$1" "$(dirname -- "$2")" "$(write <"$tmp")"