root-enter: new aport

root-enter/APKBUILD

@@ -0,0 +1,19 @@
+# Contributor: Patrycja Rosa <alpine@ptrcnull.me>
+# Maintainer: Patrycja Rosa <alpine@ptrcnull.me>
+pkgname=root-enter
+pkgver=1.0.0
+pkgrel=0
+pkgdesc="enter chroot with mounts"
+url="https://git.ddd.rip/ptrcnull/ptrcports"
+arch="noarch"
+license="BSD-2-Clause"
+source="enter"
+options="!check"
+
+package() {
+	install -Dm755 enter "$pkgdir"/usr/bin/enter
+}
+
+sha512sums="
+f64c60c1937f4ac6145b3fc00dc9dce8205328009e60219282e8cba5837aff63674d4b3bef2fb751323e21720ab9ff251356817b0c2734ef2ebe315162e6caf8  enter
+"

root-enter/enter

@@ -0,0 +1,41 @@
+#!/bin/sh
+
+set -e
+
+[ "$unshared" = 1 ] || exec doas env unshared=1 unshare -m $0 $@
+
+bindpoints="/etc/resolv.conf"
+user="patrycja"
+command="ash -l"
+
+while getopts "be:u:s:" opt; do
+	case $opt in
+		'b') bindpoints="
+			$bindpoints
+			/home/patrycja/aports
+			/home/patrycja/packages
+			/home/patrycja/.abuild
+		" ;;
+		'e') bindpoints="$bindpoints $OPTARG" ;;
+		'u') user=$OPTARG ;;
+		'c') command=$OPTARG ;;
+		*) echo "unknown $opt" ;;
+	esac
+done
+shift $(( $OPTIND - 1 ))
+
+mount -t devtmpfs devtmpfs $1/dev
+mount -t tmpfs shm $1/dev/shm
+mount -t sysfs sysfs $1/sys
+mount -t proc proc $1/proc
+mount -t tmpfs tmpfs $1/tmp
+for point in $bindpoints; do
+  if [ -f $point ]; then
+    touch $1$point
+  else
+    mkdir -p $1$point
+  fi
+	mount --bind $point $1$point
+done
+
+chroot $1 /bin/sh -c "su $user -c '$command'"