ports: Add a port system

The only port right now is bc, which works... kind of.
It compiles, and runs, but is really janky. At least it runs!!

.gitignore

@@ -11,3 +11,6 @@ tests/**/bin/**
 base/usr/include/**
 base/usr/lib/**
 **/*.a
+ports/**/workdir/**
+ports/ports.list
+**/*.pkg.tar.xz

Makefile

@@ -23,3 +23,4 @@ install:
 	@$(MAKE) -C kernel install
 	@$(MAKE) -C libs install
 	@$(MAKE) -C apps install
+	@tools/install-built-ports.sh

ports/add-port.sh

@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+
+set -e
+
+cd $(dirname $0)/..
+
+source tools/env.sh
+
+cd ports
+
+export DESTDIR=${DESTDIR:-"$LUNA_ROOT/initrd"}
+
+export listdir=$PWD
+
+if [ -z $1 ]
+then
+    echo "Usage: add-port.sh <port-name>"
+    exit 1
+fi
+
+if [ -d $1 ]
+then
+    pkgscript=$1/package.sh
+elif [ -f $1 ]
+then
+    pkgscript=$1
+else
+    echo "Unrecognized argument: $1"
+    exit 1
+fi
+
+export portdir=$(realpath $(dirname $pkgscript))
+export workdir=$portdir/workdir
+mkdir -p $workdir
+
+source $pkgscript
+
+echo "Building $pkgname version $pkgver..."
+
+cd $workdir
+
+if ! [ -d $srcdir ]
+then
+    mkdir -p $setupdir
+    cd $setupdir
+
+    echo "Downloading $pkgname version $pkgver..."
+
+    case $pkgmode in
+        "web") wget $pkgurl;;
+        "git") git clone $pkgurl;;
+        *) echo "Don't know how to download package mode '$pkgmode'"; exit 1;;
+    esac
+
+    command -v port_unpack >/dev/null
+    if [ "$?" = "0" ]
+    then
+        echo "Unpacking $pkgname version $pkgver..."
+        port_unpack
+    fi
+
+    command -v port_patch >/dev/null
+    if [ "$?" = "0" ]
+    then
+        echo "Patching $pkgname version $pkgver..."
+        port_patch
+    fi
+fi
+
+cd $workdir
+
+mkdir -p $builddir
+cd $builddir
+
+command -v port_configure >/dev/null
+if [ "$?" = "0" ]
+then
+    echo "Configuring $pkgname version $pkgver..."
+    port_configure
+fi
+
+echo "Making $pkgname version $pkgver..."
+port_build # this one is required
+
+cd $workdir
+
+mkdir -p $installdir
+cd $installdir
+
+echo "Installing $pkgname version $pkgver..."
+port_install
+
+echo "$pkgname" >> $listdir/ports.list
+cat $listdir/ports.list | sort | uniq | tee $listdir/ports.list >/dev/null # avoid duplicates
+
+echo "Success! Registered port: $pkgname version $pkgver."

ports/bc/bc.patch

@@ -0,0 +1,69 @@
+diff --color -rN -u bc-vanilla/include/library.h bc-6.0.4/include/library.h
+--- a/bc-6.0.4/include/library.h	2022-09-26 19:34:34.000000000 +0200
++++ b/bc-6.0.4/include/library.h	2022-10-15 14:59:11.413415573 +0200
+@@ -36,7 +36,7 @@
+ #ifndef LIBBC_PRIVATE_H
+ #define LIBBC_PRIVATE_H
+ 
+-#ifndef _WIN32
++#if !defined(_WIN32) && !defined(__luna__)
+ 
+ #include <pthread.h>
+ 
+@@ -236,13 +236,17 @@
+ BcVm*
+ bcl_getspecific(void);
+ 
+-#ifndef _WIN32
++#if !defined(_WIN32) && !defined(__luna__)
+ 
+ typedef pthread_key_t BclTls;
+ 
+ #else // _WIN32
+ 
++#ifdef __luna__
++typedef int BclTls;
++#else
+ typedef DWORD BclTls;
++#endif
+ 
+ #endif // _WIN32
+ 
+diff --color -rN -u bc-vanilla/src/vm.c bc-6.0.4/src/vm.c
+--- a/bc-6.0.4/src/vm.c	2022-09-26 19:34:35.000000000 +0200
++++ b/bc-6.0.4/src/vm.c	2022-10-21 17:29:13.511229371 +0200
+@@ -49,7 +49,7 @@
+ #include <sys/types.h>
+ #include <unistd.h>
+ 
+-#else // _WIN32
++#else
+ 
+ #define WIN32_LEAN_AND_MEAN
+ #include <windows.h>
+@@ -193,7 +193,7 @@
+ static void
+ bc_vm_sigaction(void)
+ {
+-#ifndef _WIN32
++#if !defined(_WIN32) && !defined(__luna__)
+ 
+ 	struct sigaction sa;
+ 
+@@ -223,11 +223,15 @@
+ 	if (BC_TTY) sigaction(SIGHUP, &sa, NULL);
+ #endif // BC_ENABLE_HISTORY
+ 
+-#else // _WIN32
++#else 
++
++#ifndef __luna__
+ 
+ 	signal(SIGTERM, bc_vm_sig);
+ 	signal(SIGINT, bc_vm_sig);
+ 
++#endif
++
+ #endif // _WIN32
+ }
+ 

ports/bc/package.sh

@@ -0,0 +1,40 @@
+pkgname="bc"
+pkgver="6.0.4"
+pkgurl="https://github.com/gavinhoward/bc/releases/download/$pkgver/bc-$pkgver.tar.gz"
+
+pkgmode="web"
+
+setupdir="$workdir"
+builddir="$workdir/build"
+installdir="$workdir/build"
+srcdir="$workdir/bc-$pkgver"
+
+port_unpack()
+{
+    tar xvf bc-$pkgver.tar.gz
+}
+
+port_patch()
+{
+    patch -u -i $portdir/bc.patch -p 1 -d $workdir
+}
+
+port_configure()
+{
+    HOSTCC=gcc PREFIX=${PREFIX:-""} $workdir/bc-$pkgver/configure --disable-nls --bc-only --disable-history --disable-man-pages
+}
+
+port_build()
+{
+    make
+}
+
+port_install()
+{
+    make install
+}
+
+port_uninstall()
+{
+    make uninstall
+}

ports/make-package.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+set -e
+
+source $(dirname $0)/../tools/env.sh
+
+source $LUNA_ROOT/ports/$1/package.sh
+
+mkdir $PWD/pkgroot
+
+DESTDIR=$PWD/pkgroot $LUNA_ROOT/ports/add-port.sh $pkgname
+
+cd pkgroot
+
+tar cJf ../$pkgname-$pkgver.pkg.tar.xz *
+
+cd ..
+
+DESTDIR=$PWD/pkgroot $LUNA_ROOT/ports/remove-port.sh $pkgname
+
+rm -rf $PWD/pkgroot
+
+echo "Built package $pkgname-$pkgver.pkg.tar.xz"

ports/remove-port.sh

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+set -e
+
+cd $(dirname $0)/..
+
+source tools/env.sh
+
+cd ports
+
+export listdir=$PWD
+
+if [ -z $1 ]
+then
+    echo "Usage: remove-port.sh <port-name>"
+    exit 1
+fi
+
+if [ -d $1 ]
+then
+    pkgscript=$1/package.sh
+elif [ -f $1 ]
+then
+    pkgscript=$1
+else
+    echo "Unrecognized argument: $1"
+    exit 1
+fi
+
+export portdir=$(realpath $(dirname $pkgscript))
+export workdir=$portdir/workdir
+mkdir -p $workdir
+
+source $pkgscript
+
+echo "Removing $pkgname version $pkgver..."
+
+cd $installdir
+port_uninstall
+
+rm -rf $workdir
+cat $listdir/ports.list | sort | uniq | grep -v $pkgname | tee $listdir/ports.list >/dev/null
+
+echo "Success! Removed port: $pkgname version $pkgver."

tools/install-built-ports.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+set -e
+
+source $(dirname $0)/env.sh
+
+cd $LUNA_ROOT/ports
+
+if ! [ -f ./ports.list ]
+then
+    echo "No ports built."
+fi
+
+install_port()
+{
+    export portdir=$PWD/$1
+    export workdir=$portdir/workdir
+    source $portdir/package.sh
+    echo "installing port: $pkgname version $pkgver"
+    mkdir -p $installdir
+    cd $installdir
+    port_install
+}
+
+while read package; do
+   install_port $package
+done < ./ports.list