kiss: speedup pkg_find when finding one package

pkg_find is used for 2 purposes:
 - finding all packages in KISS_PATH that meet some criteria
 - finding the first package in KISS_PATH that meets criteria

The first is the case for `kiss search` but the second is more common.
It is used everywhere to find the first package, that is, the package to
be used for builds, downloads, upgrades etc.
However, in both cases, every repo in KISS_PATH is scanned for the
package, which is unnecessary in the second case which only needs the
first match. Therefore, break after the first match in this case.

On my system, this results in a 2x speedup of `kiss U` (just the logic
to detect upgrades, exiting before prompting).

.woodpecker.yml

@@ -1,9 +0,0 @@
-steps:
-  build:
-    image: alpine
-    when:
-      branch: [ master ]
-    commands: |
-      apk add --no-cache shellcheck
-
-      shellcheck kiss contrib/*

contrib/kiss-repodepends

@@ -1,16 +0,0 @@
-#!/bin/sh -ef
-# Display a package's dependencies in repositories
-
-pkg=${1:-"${PWD##*/}"}
-
-kiss search "$pkg" >/dev/null || {
-    printf 'usage: kiss-depends [pkg]\n' >&2
-    exit 1
-}
-
-kiss search "$pkg" | while read -r pkgpath; do
-    printf '=> %s\n' "$pkgpath"
-    while read -r dep mak || [ "$dep" ]; do
-        printf '%s%s\n' "$dep" "${mak:+ "$mak"}"
-    done 2>/dev/null < "$pkgpath/depends"
-done

contrib/kiss-reporevdepends

@@ -1,19 +0,0 @@
-#!/bin/sh
-# Display packages in all repositories which depend on a package
-
-[ "$1" ] || set -- "${PWD##*/}"
-
-suffix () {
-    case "$1" in *"$2") return 0; esac; return 1
-}
-
-IFS=:
-for repo in $KISS_PATH; do
-    # remove trailing slashes
-    while suffix "$repo" /; do repo="${repo%/}"; done
-    gitdir="$(git -C "$repo" rev-parse --show-toplevel 2>/dev/null || echo "$repo")"
-    case "$gitdir" in "$repo") unset prefix ;; *) prefix="${repo##*/}/" ;; esac
-
-    cd "$gitdir/.." || continue
-    grep -E "^$1([[:space:]]|$)" -- "${gitdir##*/}/$prefix"*/depends 2>/dev/null ||:
-done

kiss

@@ -330,7 +330,10 @@ _pkg_find() {
     for _find_path in $4 "${3:-$sys_db}"; do set +f
         ok "$_find_path" || continue
         for _find_pkg in "$_find_path/"$1; do
-            test "${3:--d}" "$_find_pkg" && set -f -- "$@" "$_find_pkg"
+            test "${3:--d}" "$_find_pkg" && {
+                set -f -- "$@" "$_find_pkg"
+                case $2- in -) break 2 ;; esac
+            }
         done
     done
 
@@ -2007,7 +2010,6 @@ args() {
                 KISS_PID="$KISS_PID" \
                 KISS_ROOT="$KISS_ROOT" \
                 KISS_TMPDIR="$KISS_TMPDIR" \
-                _KISS_DATE="$time" \
                 _KISS_LVL="$_KISS_LVL" \
                 "$0" "$action" "$@"
 
@@ -2161,10 +2163,7 @@ main() {
 
     # Store the date and time of script invocation to be used as the name of
     # the log files the package manager creates during builds.
-    # Accept _KISS_DATE in case this process has been called by a kiss process
-    # started on a different day, which could cause permission issues if we
-    # create log_dir as root.
-    time=${_KISS_DATE:-"$(date +%Y-%m-%d-%H:%M)"}
+    time=$(date +%Y-%m-%d-%H:%M)
 
     create_tmp_dirs
     trap_on