core/pkgs/build-support/fetchsvn/default.nix
2024-06-30 09:16:52 +01:00

85 lines
1.8 KiB
Nix

{
lib,
stdenvNoCC,
buildPackages,
subversion,
glibcLocales,
sshSupport ? true,
openssh ? null,
}:
{
url,
rev ? "HEAD",
sha256 ? "",
hash ? "",
ignoreExternals ? false,
ignoreKeywords ? false,
name ? null,
preferLocalBuild ? true,
}:
assert sshSupport -> openssh != null;
let
repoName =
with lib;
let
fst = head;
snd = l: head (tail l);
trd = l: head (tail (tail l));
path_ =
(p: if head p == "" then tail p else p) # ~ drop final slash if any
(reverseList (splitString "/" url));
path = [ (removeSuffix "/" (head path_)) ] ++ (tail path_);
in
# ../repo/trunk -> repo
if fst path == "trunk" then
snd path
# ../repo/branches/branch -> repo-branch
else if snd path == "branches" then
"${trd path}-${fst path}"
# ../repo/tags/tag -> repo-tag
else if snd path == "tags" then
"${trd path}-${fst path}"
# ../repo (no trunk) -> repo
else
fst path;
name_ = if name == null then "${repoName}-r${toString rev}" else name;
in
if hash != "" && sha256 != "" then
throw "Only one of sha256 or hash can be set"
else
stdenvNoCC.mkDerivation {
name = name_;
builder = ./builder.sh;
nativeBuildInputs = [
subversion
glibcLocales
] ++ lib.optional sshSupport openssh;
SVN_SSH = if sshSupport then "${buildPackages.openssh}/bin/ssh" else null;
outputHashAlgo = if hash != "" then null else "sha256";
outputHashMode = "recursive";
outputHash =
if hash != "" then
hash
else if sha256 != "" then
sha256
else
lib.fakeSha256;
inherit
url
rev
ignoreExternals
ignoreKeywords
;
impureEnvVars = lib.fetchers.proxyImpureEnvVars;
inherit preferLocalBuild;
}