blob: 0cf8365992248c92e19b3edda360267c83809232 (
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
|
#! @shell@ -e
url=$1
expHash=$2
# to prevent doing more than 1 chroot
unset NIX_ROOT
# needed to make it work on NixOS
export PATH=$PATH:@coreutils@
hashType=$NIX_HASH_ALGO
if test -z "$hashType"; then
hashType=md5
fi
hashFormat=
if test "$hashType" != "md5"; then
hashFormat=--base32
fi
if test -z "$url"; then
echo "syntax: nix-prefetch-url URL [EXPECTED-HASH]" >&2
exit 1
fi
name=$(basename "$url")
if test -z "$name"; then echo "invalid url"; exit 1; fi
# If the hash was given, a file with that hash may already be in the
# store.
if test -n "$expHash"; then
finalPath=$(@bindir@/nix-store --print-fixed-path "$hashType" "$expHash" "$name")
if ! @bindir@/nix-store --check-validity "$finalPath" 2> /dev/null; then
finalPath=
fi
hash=$expHash
fi
# If we don't know the hash or a file with that hash doesn't exist,
# download the file and add it to the store.
if test -z "$finalPath"; then
tmpPath=/tmp/nix-prefetch-url-$$ # !!! security?
tmpFile=$tmpPath/$name
mkdir $tmpPath
# Perform the download.
@curl@ --fail --location --max-redirs 20 --disable-epsv "$url" > $tmpFile
# Compute the hash.
hash=$(@bindir@/nix-hash --type "$hashType" $hashFormat --flat $tmpFile)
if ! test -n "$QUIET"; then echo "hash is $hash" >&2; fi
# Add the downloaded file to the Nix store.
finalPath=$(@bindir@/nix-store --add-fixed "$hashType" $tmpFile)
if test -n "$tmpPath"; then rm -rf $tmpPath || true; fi
if test -n "$expHash" -a "$expHash" != "$hash"; then
echo "hash mismatch for URL \`$url'"
exit 1
fi
fi
if ! test -n "$QUIET"; then echo "path is $finalPath" >&2; fi
echo $hash
if test -n "$PRINT_PATH"; then
echo $finalPath
fi
|
