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https://github.com/nix-community/home-manager.git
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60 lines
2.1 KiB
Bash
60 lines
2.1 KiB
Bash
# -*- mode: sh; sh-shell: bash -*-
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@initHomeManagerLib@
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# A symbolic link whose target path matches this pattern will be
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# considered part of a Home Manager generation.
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homeFilePattern="$(readlink -e @storeDir@)/*-home-manager-files/*"
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forcedPaths=(@forcedPaths@)
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newGenFiles="$1"
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shift
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for sourcePath in "$@" ; do
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relativePath="${sourcePath#$newGenFiles/}"
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targetPath="$HOME/$relativePath"
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forced=""
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for forcedPath in "${forcedPaths[@]}"; do
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if [[ $targetPath == $forcedPath* ]]; then
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forced="yeah"
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break
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fi
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done
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if [[ -n $forced ]]; then
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verboseEcho "Skipping collision check for $targetPath"
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elif [[ -e "$targetPath" \
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&& ! "$(readlink "$targetPath")" == $homeFilePattern ]] ; then
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# The target file already exists and it isn't a symlink owned by Home Manager.
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if cmp -s "$sourcePath" "$targetPath"; then
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# First compare the files' content. If they're equal, we're fine.
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warnEcho "Existing file '$targetPath' is in the way of '$sourcePath', will be skipped since they are the same"
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elif [[ ! -L "$targetPath" && -n "$HOME_MANAGER_BACKUP_EXT" ]] ; then
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# Next, try to move the file to a backup location if configured and possible
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backup="$targetPath.$HOME_MANAGER_BACKUP_EXT"
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if [[ -e "$backup" ]]; then
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collisionErrors+=("Existing file '$backup' would be clobbered by backing up '$targetPath'")
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else
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warnEcho "Existing file '$targetPath' is in the way of '$sourcePath', will be moved to '$backup'"
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fi
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else
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# Fail if nothing else works
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collisionErrors+=("Existing file '$backup' would be clobbered by backing up '$targetPath'")
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fi
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fi
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done
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if [[ ${#collisionErrors[@]} -gt 0 ]] ; then
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errorEcho "Please do one of the following:
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- Move or remove the files below and try again.
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- In standalone mode, use 'home-manager switch -b backup' to back up
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files automatically.
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- When used as a NixOS or nix-darwin module, set
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'home-manager.backupFileExtension'
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to, for example, 'backup' and rebuild."
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for error in "${collisionErrors[@]}" ; do
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errorEcho "$error"
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done
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exit 1
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fi
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