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https://github.com/NixOS/nixpkgs.git
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46 lines
1.4 KiB
Nix
46 lines
1.4 KiB
Nix
{stdenv, subversion, sshSupport ? false, openssh ? null}:
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{url, rev ? "HEAD", md5 ? "", sha256 ? "", ignoreExternals ? false, name ? null}:
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let
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repoName = with stdenv.lib;
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let
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fst = head;
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snd = l: head (tail l);
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trd = l: head (tail (tail l));
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path_ = reverseList (splitString "/" url);
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path = if head path_ == "" then tail path_ else path_;
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in
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# ../repo/trunk -> repo
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if fst path == "trunk" then snd path
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# ../repo/branches/branch -> repo-branch
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else if snd path == "branches" then "${trd path}-${fst path}"
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# ../repo/tags/tag -> repo-tag
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else if snd path == "tags" then "${trd path}-${fst path}"
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# ../repo (no trunk) -> repo
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else fst path;
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name_ = if name == null then "${repoName}-r${toString rev}" else name;
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in
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stdenv.mkDerivation {
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name = name_;
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builder = ./builder.sh;
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buildInputs = [subversion];
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outputHashAlgo = if sha256 == "" then "md5" else "sha256";
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outputHashMode = "recursive";
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outputHash = if sha256 == "" then md5 else sha256;
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inherit url rev sshSupport openssh ignoreExternals;
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impureEnvVars = [
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# We borrow these environment variables from the caller to allow
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# easy proxy configuration. This is impure, but a fixed-output
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# derivation like fetchurl is allowed to do so since its result is
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# by definition pure.
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"http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy"
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];
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preferLocalBuild = true;
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}
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