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add mutable shortlinks #830

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Feb 5, 2024
Merged

add mutable shortlinks #830

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29 changes: 20 additions & 9 deletions default.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -29,26 +29,37 @@ let
let
# Various versions of the Nix manuals, grep for (nix-manual)= to find where they are displayed
# FIXME: This requires human interaction to update! See ./CONTRIBUTING.md for details.
releases = [
"2.19"
"2.18"
"2.13"
];
releases = {
latest = "2.19";
rolling = "2.18";
stable = "2.18";
prev-stable = "2.13";
};
inputName = version: pkgs.lib.strings.replaceStrings [ "." ] [ "-" ] version;
src = version: inputs."nix_${inputName version}";
manual = version: (import (src version)).default.doc;
copy = version: ''
cp -Rf ${manual version}/share/doc/nix/manual/* $out/manual/nix/${version}
# add upstream page redirects of the form `<from> <to> <status>`, excluding comment lines and empty
'';
# add upstream page redirects of the form `<from> <to> <status>`, excluding comment lines and empty
redirects = version: ''
sed '/^#/d;/^$/d;s#^\(.*\) \(.*\) #/manual/nix/${version}\1 /manual/nix/${version}\2 #g' ${src version}/doc/manual/_redirects >> $out/_redirects
'';
shortlink = release: version: ''
echo /nix/manual/${release} /nix/manual/${version} >> $out/_redirects
'';
versions = with pkgs.lib; lists.unique (attrsets.attrValues releases);
in
with pkgs.lib.attrsets;
with pkgs.lib.strings;
''
# NOTE: the comma in the shell expansion makes it also work for singleton lists
mkdir -p $out/manual/nix/{${concatStringsSep "," releases},}
mkdir -p $out
cp -R build/html/* $out/
${concatStringsSep "\n" (map copy releases)}
# NOTE: the comma in the shell expansion makes it also work for singleton lists
mkdir -p $out/manual/nix/{${concatStringsSep "," versions},}
${concatStringsSep "\n" (map copy versions)}
${concatStringsSep "\n" (map redirects versions)}
${concatStringsSep "\n" (mapAttrsToList shortlink releases)}
'';
};

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