#!/bin/mkpkg
# description: A UNIX init scheme with service supervision
# url: http://smarden.org/runit/

# Depends on: musl

name=runit
version=2.3.1
release=2
source=(https://smarden.org/runit/$name-$version.tar.gz
        clearmem.patch
        pause.c
        pause.1
        runit-1
        runit-2
        runit-3
        ctrlaltdel
        rc.local
        rc.shutdown)

sha256sums=(
    "634f23c8c4d1d440043be0fe928ddf904626289e97bfe7c5826e93aaf2cc6fe9"
    "668fd39e94ab68700bcdae3b222525c3255f3f28d43694db017aef9f6e6945a4"
    "83091fb46163582397acf1235bd7058c2d8466fbbba6a56624f57347b0f4f1fd"
    "6ecfe607c4cbfa8dd7c21c17aea0c9eea9717bc11b1db85c80b83292dac42ba9"
    "88f81e4450fadffd032fd56396050c2de37101c7848765510c1a0bd4ce18bb26"
    "ae562bf4f3be0be448817aefeede23000fadea8f0fa5f8d930ebf57e5e5dd33d"
    "78b7467339fb909e1491e08ad0af3a0d5fdaab854345bc0aff189f940f5f3ad2"
    "4c4ccd8a997eeef0b8095620b79e4e72785d28c069bf8c4ff79582bcab074ea7"
    "d5ad9ed29d75e6c2e6356179b8fb8df35db3c0747b60df9b586e3aa99b88b801"
    "f49c574801eb148ec744e744ad76659e915ebdbea693dbc48a84d4d4e58fa77c"
)

build() {
    cd "admin/$name-$version"

    echo "${CC:-cc} ${CFLAGS:--O2 -Wall}" > src/conf-cc
    echo "${CC:-cc} ${LDFLAGS} -s" > src/conf-ld

    patch -p1 -i "$SRC/clearmem.patch"

    ./package/compile
    ./package/check

    install -d "$PKG/sbin"
    install -m755 command/* "$PKG/sbin/"
    ln -sf runit-init "$PKG/sbin/init"

    # Reboot/halt/poweroff wrappers (runit doesn't ship these)
    printf '#!/bin/sh\ntouch /etc/runit/reboot\nchmod 100 /etc/runit/stopit\nkill -CONT 1\n' > "$PKG/sbin/reboot"
    chmod 755 "$PKG/sbin/reboot"

    printf '#!/bin/sh\nrm -f /etc/runit/reboot\nchmod 100 /etc/runit/stopit\nkill -CONT 1\n' > "$PKG/sbin/poweroff"
    chmod 755 "$PKG/sbin/poweroff"

    ln -sf poweroff "$PKG/sbin/halt"

    install -d "$PKG/etc/runit"
    install -d "$PKG/etc/runit/runsvdir/default"
    install -d "$PKG/etc/runit/runsvdir/single"
    install -d "$PKG/etc/sv"
    install -d "$PKG/service"

    install -m755 "$SRC/runit-1" "$PKG/etc/runit/1"
    install -m755 "$SRC/runit-2" "$PKG/etc/runit/2"
    install -m755 "$SRC/runit-3" "$PKG/etc/runit/3"
    install -m755 "$SRC/ctrlaltdel" "$PKG/etc/runit/"

    # User-customizable rc scripts go in /etc/
    install -m755 "$SRC/rc.local" "$PKG/etc/"
    install -m755 "$SRC/rc.shutdown" "$PKG/etc/"

    ln -s "/etc/runit/runsvdir/default" "$PKG/etc/runit/runsvdir/current"

    # Create agetty services for tty1-6
    for i in 1 2 3 4 5 6; do
        svdir="$PKG/etc/sv/agetty-tty$i"
        install -d "$svdir"

        if [ "$i" -eq 1 ]; then
            printf '#!/bin/sh\nPATH=/bin:/sbin\nexec setsid agetty --noclear tty%s 38400 linux\n' "$i" > "$svdir/run"
        else
            printf '#!/bin/sh\nPATH=/bin:/sbin\nexec setsid agetty tty%s 38400 linux\n' "$i" > "$svdir/run"
        fi
        chmod 755 "$svdir/run"

        printf '#!/bin/sh\nPATH=/bin:/sbin\nexec utmpset -w tty%s\n' "$i" > "$svdir/finish"
        chmod 755 "$svdir/finish"

        ln -s "/etc/sv/agetty-tty$i" "$PKG/etc/runit/runsvdir/default/"
        ln -s "/etc/sv/agetty-tty$i" "$PKG/service/"
    done

    # Serial getty -- shipped but deliberately NOT linked into
    # default/ or /service/.  A headless install (VPS, `qemu
    # -nographic`) has no other console and needs it; a laptop with a
    # registered but unconnected UART does not, and a getty spawning
    # into a dead port is worse than no getty at all.  Enable with:
    #
    #     ln -s /etc/sv/agetty-ttyS0 /service/
    #
    # ttyS0 must also be in /etc/securetty, or login refuses root there
    # even with autologin: agetty execs `login -f root`, which skips the
    # password but still consults securetty.
    #
    # The guard matters because a run script that exits immediately
    # respawns forever, and on hardware with no UART the device node may
    # not exist at all -- enabling this on the wrong machine would
    # otherwise give a silent one-per-second fork loop.
    #
    # 115200 is what every provider's serial console uses.  vt100 rather
    # than linux: a serial client is not a Linux VT, and claiming
    # otherwise breaks arrow keys and line drawing.
    svdir="$PKG/etc/sv/agetty-ttyS0"
    install -d "$svdir"
    printf '#!/bin/sh\nPATH=/bin:/sbin\n[ -c /dev/ttyS0 ] || exec sleep 3600\nexec setsid agetty --noclear ttyS0 115200 vt100\n' > "$svdir/run"
    chmod 755 "$svdir/run"

    printf '#!/bin/sh\nPATH=/bin:/sbin\nexec utmpset -w ttyS0\n' > "$svdir/finish"
    chmod 755 "$svdir/finish"

    # Build and install pause(1)
    ${CC:-cc} ${CFLAGS:--O2 -Wall} -o "$SRC/pause" "$SRC/pause.c"
    install -m755 "$SRC/pause" "$PKG/sbin/"
    install -d "$PKG/usr/share/man/man1"
    install -m644 "$SRC/pause.1" "$PKG/usr/share/man/man1/"

    # Create sulogin service for single-user mode
    sulogindir="$PKG/etc/sv/sulogin"
    install -d "$sulogindir"
    printf '#!/bin/sh\nPATH=/bin:/sbin\n[ -r conf ] && . ./conf\nread -r tty < /sys/class/tty/console/active\ntty="/dev/${tty##* }"\nexec setsid sulogin ${OPTS:=-p} < "$tty" > "$tty" 2>&1\n' > "$sulogindir/run"
    chmod 755 "$sulogindir/run"
    ln -s "/etc/sv/sulogin" "$PKG/etc/runit/runsvdir/single/"
}

signify() {
    untrusted comment: public key
    RWTZ9IduCSQ/mL8337TEUinPwT92xFEUpD92hkS7IxcOnzTt9QdpohT3
}

# vim: filetype=sh