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ab8e2a67 TA |
1 | # |
2 | # divert_link <prefix> <suffix> | |
3 | # | |
4 | # Ensures that the file <prefix><suffix> is properly diverted to | |
5 | # <prefix>.divert-orig<suffix> by this package, and becomes a | |
6 | # symbolic link to either <prefix>.divert<suffix> (default) or | |
7 | # <prefix>.divert-orig<suffix>. | |
8 | # | |
9 | # undivert_unlink <prefix> <suffix> | |
10 | # | |
11 | # Undoes the action of divert_link <prefix> <suffix> specified | |
12 | # above. | |
13 | # | |
14 | # Version: 3.4 | |
15 | # | |
16 | ||
17 | package=#PACKAGE# | |
18 | ||
19 | ours=#DEB_DIVERT_EXTENSION# | |
20 | theirs=#DEB_DIVERT_EXTENSION#-orig | |
21 | ||
22 | divert_link() | |
23 | { | |
24 | prefix=$1 | |
25 | suffix=$2 | |
26 | ||
27 | file=$prefix$suffix | |
28 | ourfile=$prefix$ours$suffix | |
29 | theirfile=$prefix$theirs$suffix | |
30 | ||
31 | if ! dpkg-divert --list "$package" | \ | |
32 | grep -xFq "diversion of $file to $theirfile by $package"; then | |
33 | dpkg-divert --divert "$theirfile" --rename --package "$package" --add "$file" | |
34 | fi | |
35 | if [ ! -L "$file" ] && [ ! -e "$file" ]; then | |
36 | ln -s "$(basename "$ourfile")" "$file" | |
37 | elif [ ! -L "$file" ] || \ | |
38 | [ "$(readlink "$file")" != "$(basename "$ourfile")" -a \ | |
39 | "$(readlink "$file")" != "$(basename "$theirfile")" ]; then | |
40 | echo "*** OMINOUS WARNING ***: $file is not linked to either $(basename "$ourfile") or $(basename "$theirfile")" >&2 | |
41 | fi | |
42 | } | |
43 | ||
44 | undivert_unlink() | |
45 | { | |
46 | prefix=$1 | |
47 | suffix=$2 | |
48 | ||
49 | file=$prefix$suffix | |
50 | ourfile=$prefix$ours$suffix | |
51 | theirfile=$prefix$theirs$suffix | |
52 | ||
53 | if [ ! -L "$file" ] || \ | |
54 | [ "$(readlink "$file")" != "$(basename "$ourfile")" -a \ | |
55 | "$(readlink "$file")" != "$(basename "$theirfile")" ]; then | |
56 | echo "*** OMINOUS WARNING ***: $file is not linked to either $(basename "$ourfile") or $(basename "$theirfile")" >&2 | |
57 | else | |
58 | rm -f "$file" | |
59 | fi | |
60 | if [ ! -L "$file" ] && [ ! -e "$file" ]; then | |
61 | dpkg-divert --remove --rename --package "$package" "$file" | |
62 | else | |
63 | echo "Not removing diversion of $file by $package" >&2 | |
64 | fi | |
65 | } | |
66 |