| 1 | # |
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| 2 | # divert_link <prefix> <suffix> |
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| 3 | # |
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| 4 | # Ensures that the file <prefix><suffix> is properly diverted to |
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| 5 | # <prefix>.divert-orig<suffix> by this package, and becomes a |
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| 6 | # symbolic link to either <prefix>.divert<suffix> (default) or |
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| 7 | # <prefix>.divert-orig<suffix>. |
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| 8 | # |
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| 9 | # undivert_unlink <prefix> <suffix> |
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| 10 | # |
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| 11 | # Undoes the action of divert_link <prefix> <suffix> specified |
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| 12 | # above. |
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| 13 | # |
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| 14 | # Version: 3.4 |
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| 15 | # |
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| 16 | |
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| 17 | package=#PACKAGE# |
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| 18 | |
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| 19 | ours=#DEB_DIVERT_EXTENSION# |
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| 20 | theirs=#DEB_DIVERT_EXTENSION#-orig |
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| 21 | |
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| 22 | divert_link() |
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| 23 | { |
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| 24 | prefix=$1 |
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| 25 | suffix=$2 |
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| 26 | |
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| 27 | file=$prefix$suffix |
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| 28 | ourfile=$prefix$ours$suffix |
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| 29 | theirfile=$prefix$theirs$suffix |
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| 30 | |
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| 31 | if ! dpkg-divert --list "$package" | \ |
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| 32 | grep -xFq "diversion of $file to $theirfile by $package"; then |
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| 33 | dpkg-divert --divert "$theirfile" --rename --package "$package" --add "$file" |
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| 34 | fi |
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| 35 | if [ ! -L "$file" ] && [ ! -e "$file" ]; then |
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| 36 | ln -s "$(basename "$ourfile")" "$file" |
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| 37 | elif [ ! -L "$file" ] || \ |
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| 38 | [ "$(readlink "$file")" != "$(basename "$ourfile")" -a \ |
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| 39 | "$(readlink "$file")" != "$(basename "$theirfile")" ]; then |
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| 40 | echo "*** OMINOUS WARNING ***: $file is not linked to either $(basename "$ourfile") or $(basename "$theirfile")" >&2 |
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| 41 | fi |
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| 42 | } |
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| 43 | |
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| 44 | undivert_unlink() |
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| 45 | { |
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| 46 | prefix=$1 |
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| 47 | suffix=$2 |
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| 48 | |
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| 49 | file=$prefix$suffix |
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| 50 | ourfile=$prefix$ours$suffix |
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| 51 | theirfile=$prefix$theirs$suffix |
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| 52 | |
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| 53 | if [ ! -L "$file" ] || \ |
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| 54 | [ "$(readlink "$file")" != "$(basename "$ourfile")" -a \ |
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| 55 | "$(readlink "$file")" != "$(basename "$theirfile")" ]; then |
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| 56 | echo "*** OMINOUS WARNING ***: $file is not linked to either $(basename "$ourfile") or $(basename "$theirfile")" >&2 |
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| 57 | else |
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| 58 | rm -f "$file" |
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| 59 | fi |
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| 60 | if [ ! -L "$file" ] && [ ! -e "$file" ]; then |
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| 61 | dpkg-divert --remove --rename --package "$package" "$file" |
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| 62 | else |
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| 63 | echo "Not removing diversion of $file by $package" >&2 |
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| 64 | fi |
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| 65 | } |
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| 66 | |
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