1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
#! /usr/bin/env bash
# file : etc/private/vm-start
# license : MIT; see accompanying LICENSE file
# Start the brep virtual machine (VM) for installing or running the previously
# installed brep private instance. Must be executed on the host as brep user.
#
# Share with the VM the brep state directory as the 9p filesystem with the
# passthrough security model enabled. This directory is expected to be owned
# by the brep user and either contain the pkg repository maintained by the
# brep instance or be empty, in which case the empty repository will be
# automatically initialized.
#
# Note that you can signal to the VM to regenerate the repository on startup
# (e.g., after package removal) by removing the packages.manifest file from
# the repository.
#
# Options:
#
# --state <dir>
#
# State directory to share with the VM. If unspecified, $HOME/state is
# assumed.
#
# --install <dir>
#
# Also share with the VM the install directory (contains the brep private
# instance installation script and auxiliary files).
#
# Note that this script wraps the generic vm-start-base script and passes
# through any arguments that follows these options to that script.
#
usage="usage: $0 [<options>] [<base-options>] <machine-img> [<extra-qemu-options>]"
trap "{ exit 1; }" ERR
set -o errtrace # Trap ERR in functions.
function info () { echo "$*" 1>&2; }
function error () { info "$*"; exit 1; }
install=
state="$HOME/state"
while [ "$#" -gt 0 ]; do
case "$1" in
--install)
shift
install="${1%/}"
shift
;;
--state)
shift
state="${1%/}"
shift
;;
*)
break # The end of options is encountered.
;;
esac
done
if [ "$#" -eq 0 ]; then
error "missing machine image"
fi
# Verify the state directory existence.
#
if [ ! -d "$state" ]; then
error "state directory '$state' does not exist or is not a directory"
fi
# Compute the start and QEMU options.
#
start_ops=()
qemu_ops=(\
-fsdev "local,id=state,path=$state,security_model=passthrough" \
-device "virtio-9p-pci,fsdev=state,mount_tag=state")
if [ -n "$install" ]; then
# Verify the toolchain install script existence in the install directory.
#
if [ ! -f "$(echo "$install"/build2-install-*.sh)" ]; then
error "missing toolchain installation script in '$install' directory"
fi
start_ops+=(--stdio)
qemu_ops+=(\
-fsdev "local,id=install,path=$install,security_model=passthrough" \
-device "virtio-9p-pci,fsdev=install,mount_tag=install")
fi
# Finally, forward execution to the base script.
#
scr_dir="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
exec "$scr_dir/vm-start-base" "${start_ops[@]}" "$@" "${qemu_ops[@]}"
|
