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introduce a parseArgs function
1 parent 8efdf0c commit 55b239c

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+178
-173
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1 file changed

+178
-173
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‎src/nixos-anywhere.sh‎

Lines changed: 178 additions & 173 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,37 @@
11
#!/usr/bin/env bash
22
set -euo pipefail
33

4+
here=$(dirname "${BASH_SOURCE[0]}")
5+
kexecUrl=""
6+
kexecExtraFlags=""
7+
enableDebug=""
8+
nixOptions=(
9+
--extra-experimental-features 'nix-command flakes'
10+
"--no-write-lock-file"
11+
)
12+
SSH_PRIVATE_KEY=${SSH_PRIVATE_KEY-}
13+
14+
declare -A phases
15+
phases[kexec]=1
16+
phases[disko]=1
17+
phases[install]=1
18+
phases[reboot]=1
19+
20+
substituteOnDestination=y
21+
sshPrivateKeyFile=
22+
if [ -t 0 ]; then # stdin is a tty, we allow interactive input to ssh i.e. passwords
23+
sshTtyParam="-t"
24+
else
25+
sshTtyParam="-T"
26+
fi
27+
postKexecSshPort=22
28+
buildOnRemote=n
29+
envPassword=
30+
31+
declare -A diskEncryptionKeys
32+
declare -a nixCopyOptions
33+
declare -a sshArgs
34+
435
showUsage() {
536
cat <<USAGE
637
Usage: nixos-anywhere [options] <ssh-host>
@@ -67,170 +98,158 @@ step() {
6798
echo "### $* ###"
6899
}
69100

70-
here=$(dirname "${BASH_SOURCE[0]}")
71-
kexecUrl=""
72-
kexecExtraFlags=""
73-
enableDebug=""
74-
nixOptions=(
75-
--extra-experimental-features 'nix-command flakes'
76-
"--no-write-lock-file"
77-
)
78-
SSH_PRIVATE_KEY=${SSH_PRIVATE_KEY-}
101+
parseArgs() {
102+
while [[ $# -gt 0 ]]; do
103+
case "$1" in
104+
-f | --flake)
105+
flake=$2
106+
shift
107+
;;
108+
-i)
109+
sshPrivateKeyFile=$2
110+
shift
111+
;;
112+
-p | --ssh-port)
113+
sshArgs+=("-p" "$2")
114+
shift
115+
;;
116+
--ssh-option)
117+
sshArgs+=("-o" "$2")
118+
shift
119+
;;
120+
-L | --print-build-logs)
121+
printBuildLogs=y
122+
;;
123+
-s | --store-paths)
124+
diskoScript=$(readlink -f "$2")
125+
nixosSystem=$(readlink -f "$3")
126+
shift
127+
shift
128+
;;
129+
-t | --tty)
130+
echo "the '$1' flag is deprecated, a tty is now detected automatically" >&2
131+
;;
132+
--help)
133+
showUsage
134+
exit 0
135+
;;
136+
--kexec)
137+
kexecUrl=$2
138+
shift
139+
;;
140+
--kexec-extra-flags)
141+
kexecExtraFlags=$2
142+
shift
143+
;;
144+
--post-kexec-ssh-port)
145+
postKexecSshPort=$2
146+
shift
147+
;;
148+
--copy-host-keys)
149+
copyHostKeys=y
150+
;;
151+
--debug)
152+
enableDebug="-x"
153+
printBuildLogs=y
154+
set -x
155+
;;
156+
--extra-files)
157+
extraFiles=$2
158+
shift
159+
;;
160+
--disk-encryption-keys)
161+
diskEncryptionKeys["$2"]="$3"
162+
shift
163+
shift
164+
;;
165+
--phases)
166+
phases[kexec]=0
167+
phases[disko]=0
168+
phases[install]=0
169+
phases[reboot]=0
170+
IFS=, read -r -a phaseList <<<"$2"
171+
for phase in "${phaseList[@]}"; do
172+
if [[ ${phases[$phase]:-unset} == unset ]]; then
173+
abort "Unknown phase: $phase"
174+
fi
175+
phases[$phase]=1
176+
done
177+
shift
178+
;;
179+
--stop-after-disko)
180+
echo "WARNING: --stop-after-disko is deprecated, use --phases=kexec,disko instead" 2>&1
181+
phases[kexec]=1
182+
phases[disko]=1
183+
phases[install]=0
184+
phases[reboot]=0
185+
;;
186+
--no-reboot)
187+
echo "WARNING: --no-reboot is deprecated, use --phases=kexec,disko,install instead" 2>&1
188+
phases[kexec]=1
189+
phases[disko]=1
190+
phases[install]=1
191+
phases[reboot]=0
192+
;;
193+
--from)
194+
nixCopyOptions+=("--from" "$2")
195+
shift
196+
;;
197+
--option)
198+
key=$2
199+
shift
200+
value=$2
201+
shift
202+
nixOptions+=("--option" "$key" "$value")
203+
;;
204+
--no-substitute-on-destination)
205+
substituteOnDestination=n
206+
;;
207+
--build-on-remote)
208+
buildOnRemote=y
209+
;;
210+
--env-password)
211+
envPassword=y
212+
;;
213+
--vm-test)
214+
vmTest=y
215+
;;
216+
*)
217+
if [[ -z ${sshConnection-} ]]; then
218+
sshConnection="$1"
219+
else
220+
showUsage
221+
exit 1
222+
fi
223+
;;
224+
esac
225+
shift
226+
done
79227

80-
declare -A phases
81-
phases[kexec]=1
82-
phases[disko]=1
83-
phases[install]=1
84-
phases[reboot]=1
228+
if [[ ${printBuildLogs-n} == "y" ]]; then
229+
nixOptions+=("-L")
230+
fi
85231

86-
substituteOnDestination=y
87-
sshPrivateKeyFile=
88-
if [ -t 0 ]; then # stdin is a tty, we allow interactive input to ssh i.e. passwords
89-
sshTtyParam="-t"
90-
else
91-
sshTtyParam="-T"
92-
fi
93-
postKexecSshPort=22
94-
buildOnRemote=n
95-
envPassword=
232+
if [[ ${substituteOnDestination-n} == "y" ]]; then
233+
nixCopyOptions+=("--substitute-on-destination")
234+
fi
96235

97-
declare -A diskEncryptionKeys
98-
declare -a nixCopyOptions
99-
declare -a sshArgs
236+
if [[ -z ${sshConnection-} ]]; then
237+
abort "ssh-host must be set"
238+
fi
100239

101-
while [[ $# -gt 0 ]]; do
102-
case "$1" in
103-
-f | --flake)
104-
flake=$2
105-
shift
106-
;;
107-
-i)
108-
sshPrivateKeyFile=$2
109-
shift
110-
;;
111-
-p | --ssh-port)
112-
sshArgs+=("-p" "$2")
113-
shift
114-
;;
115-
--ssh-option)
116-
sshArgs+=("-o" "$2")
117-
shift
118-
;;
119-
-L | --print-build-logs)
120-
printBuildLogs=y
121-
;;
122-
-s | --store-paths)
123-
diskoScript=$(readlink -f "$2")
124-
nixosSystem=$(readlink -f "$3")
125-
shift
126-
shift
127-
;;
128-
-t | --tty)
129-
echo "the '$1' flag is deprecated, a tty is now detected automatically" >&2
130-
;;
131-
--help)
132-
showUsage
133-
exit 0
134-
;;
135-
--kexec)
136-
kexecUrl=$2
137-
shift
138-
;;
139-
--kexec-extra-flags)
140-
kexecExtraFlags=$2
141-
shift
142-
;;
143-
--post-kexec-ssh-port)
144-
postKexecSshPort=$2
145-
shift
146-
;;
147-
--copy-host-keys)
148-
copyHostKeys=y
149-
;;
150-
--debug)
151-
enableDebug="-x"
152-
printBuildLogs=y
153-
set -x
154-
;;
155-
--extra-files)
156-
extraFiles=$2
157-
shift
158-
;;
159-
--disk-encryption-keys)
160-
diskEncryptionKeys["$2"]="$3"
161-
shift
162-
shift
163-
;;
164-
--phases)
165-
phases[kexec]=0
166-
phases[disko]=0
167-
phases[install]=0
168-
phases[reboot]=0
169-
IFS=, read -r -a phaseList <<<"$2"
170-
for phase in "${phaseList[@]}"; do
171-
if [[ ${phases[$phase]:-unset} == unset ]]; then
172-
abort "Unknown phase: $phase"
173-
fi
174-
phases[$phase]=1
175-
done
176-
shift
177-
;;
178-
--stop-after-disko)
179-
echo "WARNING: --stop-after-disko is deprecated, use --phases=kexec,disko instead" 2>&1
180-
phases[kexec]=1
181-
phases[disko]=1
182-
phases[install]=0
183-
phases[reboot]=0
184-
;;
185-
--no-reboot)
186-
echo "WARNING: --no-reboot is deprecated, use --phases=kexec,disko,install instead" 2>&1
187-
phases[kexec]=1
188-
phases[disko]=1
189-
phases[install]=1
190-
phases[reboot]=0
191-
;;
192-
--from)
193-
nixCopyOptions+=("--from" "$2")
194-
shift
195-
;;
196-
--option)
197-
key=$2
198-
shift
199-
value=$2
200-
shift
201-
nixOptions+=("--option" "$key" "$value")
202-
;;
203-
--no-substitute-on-destination)
204-
substituteOnDestination=n
205-
;;
206-
--build-on-remote)
207-
buildOnRemote=y
208-
;;
209-
--env-password)
210-
envPassword=y
211-
;;
212-
--vm-test)
213-
vmTest=y
214-
;;
215-
*)
216-
if [[ -z ${sshConnection-} ]]; then
217-
sshConnection="$1"
218-
else
219-
showUsage
240+
if [[ -n ${flake-} ]]; then
241+
if [[ $flake =~ ^(.*)\#([^\#\"]*)$ ]]; then
242+
flake="${BASH_REMATCH[1]}"
243+
flakeAttr="${BASH_REMATCH[2]}"
244+
fi
245+
if [[ -z ${flakeAttr-} ]]; then
246+
echo "Please specify the name of the NixOS configuration to be installed, as a URI fragment in the flake-uri." >&2
247+
echo 'For example, to use the output nixosConfigurations.foo from the flake.nix, append "#foo" to the flake-uri.' >&2
220248
exit 1
221249
fi
222-
;;
223-
esac
224-
shift
225-
done
226-
227-
if [[ ${printBuildLogs-n} == "y" ]]; then
228-
nixOptions+=("-L")
229-
fi
250+
fi
230251

231-
if [[ ${substituteOnDestination-n} == "y" ]]; then
232-
nixCopyOptions+=("--substitute-on-destination")
233-
fi
252+
}
234253

235254
# ssh wrapper
236255
runSshTimeout() {
@@ -484,21 +503,7 @@ SSH
484503
}
485504

486505
main() {
487-
if [[ -z ${sshConnection-} ]]; then
488-
abort "ssh-host must be set"
489-
fi
490-
491-
if [[ -n ${flake-} ]]; then
492-
if [[ $flake =~ ^(.*)\#([^\#\"]*)$ ]]; then
493-
flake="${BASH_REMATCH[1]}"
494-
flakeAttr="${BASH_REMATCH[2]}"
495-
fi
496-
if [[ -z ${flakeAttr-} ]]; then
497-
echo "Please specify the name of the NixOS configuration to be installed, as a URI fragment in the flake-uri." >&2
498-
echo 'For example, to use the output nixosConfigurations.foo from the flake.nix, append "#foo" to the flake-uri.' >&2
499-
exit 1
500-
fi
501-
fi
506+
parseArgs "$@"
502507

503508
if [[ -n ${vmTest-} ]]; then
504509
runVmTest
@@ -582,4 +587,4 @@ main() {
582587
step "Done!"
583588
}
584589

585-
main
590+
main "$@"

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