From 450a2a0f9ce2443bc06445ee018c9860d8cd5fc8 Mon Sep 17 00:00:00 2001
From: Sergey Bugaev <bugaevc@serenityos.org>
Date: Wed, 6 May 2020 18:40:06 +0300
Subject: Build: Switch to CMake :^)

Closes https://github.com/SerenityOS/serenity/issues/2080
---
 Meta/build-image-qemu.sh | 88 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 88 insertions(+)
 create mode 100755 Meta/build-image-qemu.sh

(limited to 'Meta/build-image-qemu.sh')

diff --git a/Meta/build-image-qemu.sh b/Meta/build-image-qemu.sh
new file mode 100755
index 0000000000..10ff5384f9
--- /dev/null
+++ b/Meta/build-image-qemu.sh
@@ -0,0 +1,88 @@
+#!/bin/sh
+
+set -e
+
+die() {
+    echo "die: $*"
+    exit 1
+}
+
+if [ "$(id -u)" != 0 ]; then
+    die "this script needs to run as root"
+fi
+if [ "$(uname -s)" = "Darwin" ]; then
+    export PATH="/usr/local/opt/e2fsprogs/bin:$PATH"
+    export PATH="/usr/local/opt/e2fsprogs/sbin:$PATH"
+fi
+echo "setting up disk image..."
+qemu-img create _disk_image "${DISK_SIZE:-600}"m || die "could not create disk image"
+chown "$SUDO_UID":"$SUDO_GID" _disk_image || die "could not adjust permissions on disk image"
+echo "done"
+
+printf "creating new filesystem... "
+if [ "$(uname -s)" = "OpenBSD" ]; then
+    VND=$(vnconfig _disk_image)
+    (echo "e 0"; echo 83; echo n; echo 0; echo "*"; echo "quit") | fdisk -e "$VND"
+    mkfs.ext2 -I 128 -F "/dev/${VND}i" || die "could not create filesystem"
+elif [ "$(uname -s)" = "FreeBSD" ]; then
+    MD=$(mdconfig _disk_image)
+    mke2fs -q -I 128 _disk_image || die "could not create filesystem"
+else
+    if [ -x /sbin/mke2fs ]; then
+        /sbin/mke2fs -q -I 128 _disk_image || die "could not create filesystem"
+    else
+        mke2fs -q -I 128 _disk_image || die "could not create filesystem"
+    fi
+fi
+echo "done"
+
+printf "mounting filesystem... "
+mkdir -p mnt
+use_genext2fs=0
+if [ "$(uname -s)" = "Darwin" ]; then
+    fuse-ext2 _disk_image mnt -o rw+,allow_other,uid=501,gid=20 || die "could not mount filesystem"
+elif [ "$(uname -s)" = "OpenBSD" ]; then
+    mount -t ext2fs "/dev/${VND}i" mnt/ || die "could not mount filesystem"
+elif [ "$(uname -s)" = "FreeBSD" ]; then
+    fuse-ext2 -o rw+ "/dev/${MD}" mnt/ || die "could not mount filesystem"
+else
+    if ! mount _disk_image mnt/ ; then
+        if command -v genext2fs 1>/dev/null ; then
+            echo "mount failed but genext2fs exists, use it instead"
+            use_genext2fs=1
+        else
+            die "could not mount filesystem and genext2fs is missing"
+        fi
+    fi
+fi
+echo "done"
+
+cleanup() {
+    if [ -d mnt ]; then
+        if [ $use_genext2fs = 0 ] ; then
+            printf "unmounting filesystem... "
+            umount mnt || ( sleep 1 && sync && umount mnt )
+        fi
+        rmdir mnt
+        if [ "$(uname -s)" = "OpenBSD" ]; then
+            vnconfig -u "$VND"
+        elif [ "$(uname -s)" = "FreeBSD" ]; then
+            mdconfig -d -u "$MD"
+        fi
+        echo "done"
+    fi
+}
+trap cleanup EXIT
+
+script_path=$(cd -P -- "$(dirname -- "$0")" && pwd -P)
+"$script_path/build-root-filesystem.sh"
+
+if [ $use_genext2fs = 1 ]; then
+    # regenerate new image, since genext2fs is unable to reuse the previously written image.
+    # genext2fs is very slow in generating big images, so I use a smaller image here. size can be updated
+    # if it's not enough.
+    # not using "-i 128" since it hangs. Serenity handles whatever default this uses instead.
+    genext2fs -b 250000 -d mnt _disk_image || die "try increasing image size (genext2fs -b)"
+    # if using docker with shared mount, file is created as root, so make it writable for users
+    chmod 0666 _disk_image
+fi
-- 
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