2014-05-09 13:50:40 +00:00
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# This function downloads and unpacks an archive file, such as a zip
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# or tar file. This is primarily useful for dynamically generated
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# archives, such as GitHub's /archive URLs, where the unpacked content
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# of the zip file doesn't change, but the zip file itself may
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# (e.g. due to minor changes in the compression algorithm, or changes
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# in timestamps).
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2014-05-08 12:57:20 +00:00
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2021-04-05 01:40:16 +00:00
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{ lib, fetchurl, unzip }:
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2014-05-08 12:57:20 +00:00
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2020-03-26 04:35:40 +00:00
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{ # Optionally move the contents of the unpacked tree up one level.
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stripRoot ? true
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2021-04-05 01:40:16 +00:00
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, url ? ""
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, urls ? []
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2015-12-29 15:50:21 +00:00
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, extraPostFetch ? ""
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2020-03-26 04:35:40 +00:00
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, name ? "source"
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2021-08-10 08:21:27 +00:00
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, # Allows to set the extension for the intermediate downloaded
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# file. This can be used as a hint for the unpackCmdHooks to select
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# an appropriate unpacking tool.
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extension ? null
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2014-05-08 12:57:20 +00:00
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, ... } @ args:
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2021-04-05 01:40:16 +00:00
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(fetchurl (let
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2021-08-10 08:21:27 +00:00
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tmpFilename =
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if extension != null
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then "download.${extension}"
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else baseNameOf (if url != "" then url else builtins.head urls);
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2021-04-05 01:40:16 +00:00
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in {
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2017-10-30 16:17:07 +00:00
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inherit name;
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2014-05-08 12:57:20 +00:00
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recursiveHash = true;
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2020-03-26 04:35:40 +00:00
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downloadToTemp = true;
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2020-02-02 21:56:11 +00:00
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2020-03-26 04:35:40 +00:00
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postFetch =
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''
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unpackDir="$TMPDIR/unpack"
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mkdir "$unpackDir"
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cd "$unpackDir"
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2015-01-23 05:31:29 +00:00
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2021-08-10 08:21:27 +00:00
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renamed="$TMPDIR/${tmpFilename}"
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2020-03-26 04:35:40 +00:00
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mv "$downloadedFile" "$renamed"
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unpackFile "$renamed"
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2021-09-08 00:58:18 +00:00
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chmod -R +w "$unpackDir"
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2020-03-26 04:35:40 +00:00
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''
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+ (if stripRoot then ''
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if [ $(ls "$unpackDir" | wc -l) != 1 ]; then
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echo "error: zip file must contain a single file or directory."
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echo "hint: Pass stripRoot=false; to fetchzip to assume flat list of files."
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exit 1
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fi
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fn=$(cd "$unpackDir" && echo *)
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if [ -f "$unpackDir/$fn" ]; then
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mkdir $out
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fi
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mv "$unpackDir/$fn" "$out"
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'' else ''
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mv "$unpackDir" "$out"
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2020-10-21 22:55:55 +00:00
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'')
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+ ''
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2021-02-04 14:48:47 +00:00
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${extraPostFetch}
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2021-02-05 13:08:57 +00:00
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''
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# Remove non-owner write permissions
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# Fixes https://github.com/NixOS/nixpkgs/issues/38649
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+ ''
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chmod 755 "$out"
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2020-10-21 22:55:55 +00:00
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'';
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2021-08-10 08:21:27 +00:00
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} // removeAttrs args [ "stripRoot" "extraPostFetch" "extension" ])).overrideAttrs (x: {
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2018-09-21 16:55:12 +00:00
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# Hackety-hack: we actually need unzip hooks, too
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nativeBuildInputs = x.nativeBuildInputs ++ [ unzip ];
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})
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