blob: b81a0da484003bbd33ab01a730c332a256727e08 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
#! /bin/sh
set -x
own_dir="$(cd "$(dirname "$0")"; sh -c pwd)"
source "$own_dir/snippets.sh"
main_file="$1"
main_dir="$(cd "$(dirname "$main_file")" ; sh -c pwd)"
file_name="$(basename "$main_file")"
defs_file="$main_dir"/src-info-for-"$file_name"
src_file="$main_dir"/src-for-"$file_name"
# OK, [vcs] revert is always possible
new_src_file="$main_dir"/src-for-"$file_name"
forcedUrl="$2"
defs_dir="$("$own_dir"/attrset-to-dir.sh "$defs_file")"
src_defs_dir="$("$own_dir"/attrset-to-dir.sh "$src_file")"
getAttr () {
file="$defs_dir"/"$1"
data="$( ( [ -f "$file" ] && cat "$file" ) || echo "$2" )"
echo "attribute $1 obtained as: [[$data]]" >&2
echo "$data"
}
method="$(getAttr method fetchurl)"
baseName="$(getAttr baseName 'unnamed-package')"
commonPrefetchVars=" version name hash"
prefetchClause=""
[ fetchurl = "$method" ] && {
if [ -z "$forcedUrl" ] ; then
freshUrl="$("$own_dir"/urls-from-page.sh "$(getAttr downloadPage)" |
eval "egrep \"$(getAttr sourceRegexp '.*[.]tar[.].*')\"" |
eval "$(getAttr choiceCommand 'head -1')")"
if ! egrep ':' freshUrl ; then
freshUrl="$(dirname "$(getAttr downloadPage).")/$freshUrl"
fi
echo "Found download link: $freshUrl" >&2
else
freshUrl="$forcedUrl"
fi
version="$(echo "$freshUrl" |
eval "sed -re \"$(getAttr versionExtractorSedScript \
's/.*-([0-9.]+)[.].*/\1/')\"")"
mirrorUrl="$(echo "$freshUrl" |
eval "sed -r -e \"$(getAttr versionReferenceCreator \
's/-([0-9.]+)[.]/-${version}./')\"" |
eval "sed -r -e \"$(getAttr mirrorSedScript)\"")"
name="$baseName-$version"
advertisedUrl="$freshUrl"
url="$mirrorUrl"
if [ x"$freshUrl" = x"$(cat "$src_defs_dir"/advertisedUrl)" ]; then
echo "Source link not changed" >&2
exit
fi
hash=$(nix-prefetch-url "$freshUrl")
prefetchVars="url advertisedUrl";
}
[ "fetchgit" = "$method" ] && {
repoUrl="$(getAttr repoUrl)"
export NIX_PREFETCH_GIT_CHECKOUT_HOOK="
cat .git/HEAD
"
export NIX_HASH_ALGO=sha256
rev="$(getAttr rev '')";
rev_and_hash="$("$own_dir"/../fetchgit/nix-prefetch-git "$repoUrl" "$rev" | tail -2)"
rev="$(echo "$rev_and_hash" | head -1)"
url="$repoUrl";
hash="$(echo "$rev_and_hash" | tail -1)"
version="$rev"
name="$baseName-$version"
prefetchVars="rev url";
}
prefetchAssignments="";
for i in $commonPrefetchVars $prefetchVars; do
prefetchAssignments="$prefetchAssignments $i=\"$(eval echo \"\$$i\")\";$(echo -e '\n ')"
done;
extraAssignments=""
for i in $(getAttr extraVars ''); do
eval "$(getAttr "eval_$i" 'i=""')"
extraAssignments="$extraAssignments $i=\"$(eval echo \"\$$i\")\";$(echo -e '\n ')"
done
cat << EOF > "$new_src_file"
rec {
$prefetchAssignments
$extraAssignments
}
EOF
|