-
-
Notifications
You must be signed in to change notification settings - Fork 432
/
checks.nix
217 lines (196 loc) · 7.08 KB
/
checks.nix
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
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.system.checks;
darwinChanges = ''
darwinChanges=/dev/null
if test -e /run/current-system/darwin-changes; then
darwinChanges=/run/current-system/darwin-changes
fi
darwinChanges=$(diff --changed-group-format='%>' --unchanged-group-format= /run/current-system/darwin-changes $systemConfig/darwin-changes 2> /dev/null) || true
if test -n "$darwinChanges"; then
echo >&2
echo "[1;1mCHANGELOG[0m" >&2
echo >&2
echo "$darwinChanges" >&2
echo >&2
fi
'';
runLink = ''
if ! test -e /run; then
echo "[1;31merror: Directory /run does not exist, aborting activation[0m" >&2
echo "Create a symlink to /var/run with:" >&2
if test -e /etc/synthetic.conf; then
echo >&2
echo "$ echo "run\tprivate/var/run" | sudo tee -a /etc/synthetic.conf" >&2
echo "$ /System/Library/Filesystems/apfs.fs/Contents/Resources/apfs.util -B" >&2
echo >&2
echo "The current contents of /etc/synthetic.conf is:" >&2
echo >&2
sed 's/^/ /' /etc/synthetic.conf >&2
echo >&2
else
echo >&2
echo "$ sudo ln -s private/var/run /run" >&2
echo >&2
fi
exit 2
fi
'';
buildUsers = ''
buildUser=$(dscl . -read /Groups/nixbld GroupMembership 2>&1 | awk '/^GroupMembership: / {print $2}') || true
if [ -z $buildUser ]; then
echo "[1;31merror: Using the nix-daemon requires build users, aborting activation[0m" >&2
echo "Create the build users or disable the daemon:" >&2
echo "$ ./bootstrap -u" >&2
echo >&2
echo "or set" >&2
echo >&2
echo " services.nix-daemon.enable = false;" >&2
echo >&2
exit 2
fi
'';
singleUser = ''
if grep -q 'build-users-group =' /etc/nix/nix.conf; then
echo "[1;31merror: The daemon is not enabled but this is a multi-user install, aborting activation[0m" >&2
echo "Enable the nix-daemon service:" >&2
echo >&2
echo " services.nix-daemon.enable = true;" >&2
echo >&2
echo "or set" >&2
echo >&2
echo " nix.useDaemon = true;" >&2
echo >&2
exit 2
fi
'';
nixChannels = ''
channelsLink=$(readlink "$HOME/.nix-defexpr/channels") || true
case "$channelsLink" in
*"$USER"*)
;;
"")
;;
*)
echo "[1;31merror: The ~/.nix-defexpr/channels symlink does not point your users channels, aborting activation[0m" >&2
echo "Running nix-channel will regenerate it" >&2
echo >&2
echo " rm ~/.nix-defexpr/channels" >&2
echo " nix-channel --update" >&2
echo >&2
exit 2
;;
esac
'';
nixInstaller = ''
if grep -q 'etc/profile.d/nix-daemon.sh' /etc/profile; then
echo "[1;31merror: Found nix-daemon.sh reference in /etc/profile, aborting activation[0m" >&2
echo "This will override options like nix.nixPath because it runs later," >&2
echo "remove this snippet from /etc/profile:" >&2
echo >&2
echo " # Nix" >&2
echo " if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then" >&2
echo " . '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'" >&2
echo " fi" >&2
echo " # End Nix" >&2
echo >&2
exit 2
fi
'';
nixPath = ''
darwinConfig=$(NIX_PATH=${concatStringsSep ":" config.nix.nixPath} nix-instantiate --find-file darwin-config) || true
if ! test -e "$darwinConfig"; then
echo "[1;31merror: Changed <darwin-config> but target does not exist, aborting activation[0m" >&2
echo "Create ''${darwinConfig:-~/.nixpkgs/darwin-configuration.nix} or set environment.darwinConfig:" >&2
echo >&2
echo " environment.darwinConfig = \"$(nix-instantiate --find-file darwin-config 2> /dev/null || echo '***')\";" >&2
echo >&2
echo "And rebuild using (only required once)" >&2
echo "$ darwin-rebuild switch -I \"darwin-config=$(nix-instantiate --find-file darwin-config 2> /dev/null || echo '***')\"" >&2
echo >&2
echo >&2
exit 2
fi
darwinPath=$(NIX_PATH=${concatStringsSep ":" config.nix.nixPath} nix-instantiate --find-file darwin) || true
if ! test -e "$darwinPath"; then
echo "[1;31merror: Changed <darwin> but target does not exist, aborting activation[0m" >&2
echo "Add the darwin repo as a channel or set nix.nixPath:" >&2
echo "$ nix-channel --add https://github.com/LnL7/nix-darwin/archive/master.tar.gz darwin" >&2
echo "$ nix-channel --update" >&2
echo >&2
echo "or set" >&2
echo >&2
echo " nix.nixPath = [ \"darwin=$(nix-instantiate --find-file darwin 2> /dev/null || echo '***')\" ];" >&2
echo >&2
exit 2
fi
nixpkgsPath=$(NIX_PATH=${concatStringsSep ":" config.nix.nixPath} nix-instantiate --find-file nixpkgs) || true
if ! test -e "$nixpkgsPath"; then
echo "[1;31merror: Changed <nixpkgs> but target does not exist, aborting activation[0m" >&2
echo "Add a nixpkgs channel or set nix.nixPath:" >&2
echo "$ nix-channel --add http://nixos.org/channels/nixpkgs-unstable nixpkgs" >&2
echo "$ nix-channel --update" >&2
echo >&2
echo "or set" >&2
echo >&2
echo " nix.nixPath = [ \"nixpkgs=$(nix-instantiate --find-file nixpkgs 2> /dev/null || echo '***')\" ];" >&2
echo >&2
exit 2
fi
'';
nixStore = ''
if test -w /nix/var/nix/db -a ! -O /nix/store; then
echo >&2 "[1;31merror: the store is not owned by this user, but /nix/var/nix/db is writable[0m"
echo >&2 "If you are using the daemon:"
echo >&2
echo >&2 " sudo chown -R /nix/var/nix/db"
echo >&2
exit 2
fi
'';
nixGarbageCollector = ''
if test -O /nix/store; then
echo "[1;31merror: A single-user install can't run gc as root, aborting activation[0m" >&2
echo "Configure the garbage collector to run as the current user:" >&2
echo >&2
echo " nix.gc.user = \"$USER\";" >&2
echo >&2
exit 2
fi
'';
in
{
options = {
system.checks.verifyNixPath = mkOption {
type = types.bool;
default = true;
description = "Whether to run the NIX_PATH validation checks.";
};
system.checks.text = mkOption {
internal = true;
type = types.lines;
default = "";
};
};
config = {
system.checks.text = mkMerge [
darwinChanges
runLink
(mkIf config.nix.useDaemon buildUsers)
(mkIf (!config.nix.useDaemon) singleUser)
nixStore
(mkIf (config.nix.gc.automatic && config.nix.gc.user == null) nixGarbageCollector)
nixChannels
nixInstaller
(mkIf cfg.verifyNixPath nixPath)
];
system.activationScripts.checks.text = ''
${cfg.text}
if test ''${checkActivation:-0} -eq 1; then
echo "ok" >&2
exit 0
fi
'';
};
}