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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
|
#! /usr/bin/env bash
# Upgrade remote packages in a bdep-managed build2 toolchain build (default
# configurations), essentially as if by executing:
#
# bdep sync -fur && b
#
# In each project of the toolchain.
#
# Note that we can't just do that because as soon as we drop some dependency
# package, the tools (b, bpkg, etc) become non-runnable (missing shared
# libraries, etc). The script expects the current build of the toolchain
# to be runnable.
#
# This script only upgrades the default configurations (including -libs, if
# present). To upgrade the rest you can use the normal way, for example:
#
# bdep sync -Fur @<cfg>|-a
#
# If the -c option is specified, the configuration is upgraded and configured
# but only the build system is updated. This can be done at a later stage by
# running the build system in the configuration directory:
#
# BDEP_SYNC=0 b builds/gcc7/
#
owd="$(pwd)"
trap "{ cd '$owd'; exit 1; }" ERR
set -o errtrace # Trap in functions.
function info () { echo "$*" 1>&2; }
function error () { info "$*"; exit 1; }
# Run a command with tracing (similar to set -x).
#
# Note that this function will execute a command with arguments that contain
# spaces but it will not print them as quoted (and neither does set -x).
#
function run ()
{
echo "+ $@" 1>&2
"$@"
}
function run_no_sync ()
{
echo "+ BDEP_SYNC=0 $@" 1>&2
BDEP_SYNC=0 "$@"
}
# Make sure the build2 tools are runnable.
#
b --version >/dev/null
bpkg --version >/dev/null
bdep --version >/dev/null
configure_only=
while [ $# -gt 0 ]; do
case $1 in
-c)
configure_only=--configure-only
shift
;;
*)
error "unexpected $1"
;;
esac
done
# Get the configuration directories.
#
tcfg="$(b info: build2/ | sed -n -re 's/^out_root: (.+)$/\1/p')"
lcfg="$(b info: libbutl/ | sed -n -re 's/^out_root: (.+)$/\1/p')"
if [ -z "$tcfg" -o -z "$lcfg" ]; then
error "unable to determine build configuration directories"
fi
tcfg="$(dirname "$tcfg")"
lcfg="$(dirname "$lcfg")"
if [ "$tcfg" = "$lcfg" ]; then
lcfg=
fi
# The plan is as follows:
#
# 0. First, make backup copies of configurations. If something goes wrong,
# it's likely the tools will be left in a non-runnable state.
#
# 1. Next, setup the environment (PATH, LD_LIBRARY_PATH) so that we use the
# toolchain from the backup copy. Then upgrade the configurations using
# that.
# Step 0.
#
if test -e "$tcfg.bak"; then
error "$tcfg.bak already exist"
fi
if [ -n "$lcfg" ]; then
if test -e "$lcfg.bak"; then
error "$lcfg.bak already exist"
fi
fi
run cp -rp "$tcfg" "$tcfg.bak"
if [ -n "$lcfg" ]; then
run cp -rp "$lcfg" "$lcfg.bak"
fi
# Step 1.
#
# The main problem with running the toolchain from the backup location is the
# rpaths embedded into the executables. We can make sure the libraries are
# found in the backup location with LD_LIBRARY_PATH (or equivalent). But for
# good measure let's also remove all the libraries from the original location
# to make they don't interfere.
#
if [[ "$OSTYPE" == "darwin"* ]]; then
so=dylib
else
so=so
fi
libs=()
for f in $(find "$tcfg" -name "*.$so" -a '(' -type f -o -type l ')'); do
libs+=("$f")
done
run rm -rf "${libs[@]}"
declare -A lib_dirs
for f in $(find "$tcfg.bak" -name "*.$so" -a '(' -type f -o -type l ')'); do
lib_dirs["$(dirname "$f")"]=
done
# Note that the order should not matter.
#
ldpath=
for d in "${!lib_dirs[@]}"; do
ldpath="$d:$ldpath"
done
if [[ "$OSTYPE" == "darwin"* ]]; then
oldpath="$DYLD_LIBRARY_PATH"
run export DYLD_LIBRARY_PATH="$ldpath$DYLD_LIBRARY_PATH"
else
oldpath="$LD_LIBRARY_PATH"
run export LD_LIBRARY_PATH="$ldpath$LD_LIBRARY_PATH"
fi
opath="$PATH"
run export PATH="$tcfg.bak/build2/build2:$tcfg.bak/bpkg/bpkg:$tcfg.bak/bdep/bdep:$PATH"
# Make sure the backup toolchain is runnable.
#
run which b bpkg bdep
run b --version >/dev/null
run bpkg --version >/dev/null
run bdep --version >/dev/null
# Upgrade.
#
run bpkg fetch -d "$tcfg"
run_no_sync bpkg build -d "$tcfg" --keep-out -ur $configure_only
# In configure-only we update the build system manually.
#
if [ -n "$configure_only" ]; then
run_no_sync b build2/
fi
if [ -n "$lcfg" ]; then
run bpkg fetch -d "$lcfg"
run_no_sync bpkg build -d "$lcfg" --keep-out -ur $configure_only
fi
# Restore the original environment.
#
if [[ "$OSTYPE" == "darwin"* ]]; then
run export DYLD_LIBRARY_PATH="$oldpath"
else
run export LD_LIBRARY_PATH="$oldpath"
fi
run export PATH="$opath"
run b --version >/dev/null
if [ -z "$configure_only" ]; then
run bpkg --version >/dev/null
run bdep --version >/dev/null
run b build2/ bpkg/ bdep/ # Should be a noop.
fi
run rm -rf "$tcfg.bak"
if [ -n "$lcfg" ]; then
run rm -rf "$lcfg.bak"
fi
|
