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https://github.com/nix-community/home-manager
synced 2024-11-23 05:03:09 +00:00
6794efdf68
This link is needed to make the `delete-older-than` option for `nix-collect-garbage` work as expected.
56 lines
1.5 KiB
Bash
Executable file
56 lines
1.5 KiB
Bash
Executable file
function setupVars() {
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local profilesPath="/nix/var/nix/profiles/per-user/$USER"
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local gcPath="/nix/var/nix/gcroots/per-user/$USER"
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local greatestGenNum
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greatestGenNum=$( \
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find "$profilesPath" -name 'home-manager-*-link' \
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| sed 's/^.*-\([0-9]*\)-link$/\1/' \
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| sort -rn \
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| head -1)
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if [[ -n "$greatestGenNum" ]] ; then
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oldGenNum=$greatestGenNum
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newGenNum=$((oldGenNum + 1))
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else
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newGenNum=1
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fi
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if [[ -e "$gcPath/current-home" ]] ; then
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oldGenPath="$(readlink -e "$gcPath/current-home")"
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fi
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genProfilePath="$profilesPath/home-manager"
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newGenPath="@GENERATION_DIR@";
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newGenProfilePath="$profilesPath/home-manager-$newGenNum-link"
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newGenGcPath="$gcPath/current-home"
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}
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setupVars
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echo "Starting home manager activation"
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if [[ $VERBOSE ]]; then
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export VERBOSE_ECHO=echo
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export VERBOSE_ARG="--verbose"
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else
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export VERBOSE_ECHO=true
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unset VERBOSE_ARG
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fi
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if [[ $DRY_RUN ]] ; then
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$VERBOSE_ECHO "This is a dry run"
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export DRY_RUN_CMD=echo
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else
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$VERBOSE_ECHO "This is a live run"
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unset DRY_RUN_CMD
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fi
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$VERBOSE_ECHO "Activation variables:"
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$VERBOSE_ECHO " oldGenNum=$oldGenNum"
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$VERBOSE_ECHO " newGenNum=$newGenNum"
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$VERBOSE_ECHO " oldGenPath=$oldGenPath"
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$VERBOSE_ECHO " newGenPath=$newGenPath"
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$VERBOSE_ECHO " newGenProfilePath=$newGenProfilePath"
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$VERBOSE_ECHO " newGenGcPath=$newGenGcPath"
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$VERBOSE_ECHO " genProfilePath=$genProfilePath"
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