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home-environment: use declare -gr in activation init

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This marks the setup variables as read-only. Just to add a bit extra
safety.
This commit is contained in:
Robert Helgesson 2021-07-27 23:50:33 +02:00
parent 47ad3655ec
commit ae8cb242f2
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GPG key ID: 36BDAA14C2797E89
1 changed files with 7 additions and 6 deletions
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13
modules/lib-bash/activation-init.sh
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@ -5,9 +5,9 @@ function setupVars() {
local profilesPath="$nixStateDir/profiles/per-user/$USER"
local gcPath="$nixStateDir/gcroots/per-user/$USER"
genProfilePath="$profilesPath/home-manager"
newGenPath="@GENERATION_DIR@";
newGenGcPath="$gcPath/current-home"
declare -gr genProfilePath="$profilesPath/home-manager"
declare -gr newGenPath="@GENERATION_DIR@";
declare -gr newGenGcPath="$gcPath/current-home"
local greatestGenNum
greatestGenNum=$( \
@ -16,14 +16,15 @@ function setupVars() {
| sed -E 's/ *([[:digit:]]+) .*/\1/')
if [[ -n $greatestGenNum ]] ; then
oldGenNum=$greatestGenNum
newGenNum=$((oldGenNum + 1))
declare -gr oldGenNum=$greatestGenNum
declare -gr newGenNum=$((oldGenNum + 1))
else
newGenNum=1
declare -gr newGenNum=1
fi
if [[ -e $profilesPath/home-manager ]] ; then
oldGenPath="$(readlink -e "$profilesPath/home-manager")"
declare -gr oldGenPath
fi
$VERBOSE_ECHO "Sanity checking oldGenNum and oldGenPath"