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https://github.com/nix-community/home-manager
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activation-init: sanity check oldGenNum and oldGenPath
Something is terribly wrong if one is set but not the other so error out with a message if that happens.
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1 changed files with 21 additions and 6 deletions
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@ -11,27 +11,38 @@ function setupVars() {
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| sort -rn \
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| head -1)
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if [[ -n "$greatestGenNum" ]] ; then
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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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if [[ -e $gcPath/current-home ]] ; then
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oldGenPath="$(readlink -e "$gcPath/current-home")"
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fi
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$VERBOSE_ECHO "Sanity checking oldGenNum and oldGenPath"
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if [[ -v oldGenNum && ! -v oldGenPath
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|| ! -v oldGenNum && -v oldGenPath ]]; then
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errorEcho "Invalid profile number and GC root values! These must be"
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errorEcho "either both empty or both set but are now set to"
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errorEcho " '${oldGenNum:-}' and '${oldGenPath:-}'"
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errorEcho "If you don't mind losing previous profile generations then"
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errorEcho "the easiest solution is probably to run"
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errorEcho " rm $profilesPath/home-manager*"
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errorEcho " rm $gcPath/current-home"
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errorEcho "and trying home-manager switch again. Good luck!"
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exit 1
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fi
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genProfilePath="$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 [[ -v VERBOSE ]]; then
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export VERBOSE_ECHO=echo
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export VERBOSE_ARG="--verbose"
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@ -40,6 +51,10 @@ else
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export VERBOSE_ARG=""
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fi
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echo "Starting home manager activation"
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setupVars
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if [[ -v DRY_RUN ]] ; then
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echo "This is a dry run"
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export DRY_RUN_CMD=echo
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