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stdenv: take license parameter checks out of mkDerivation path
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Wout Mertens
parent
db75b5d052
commit
0feb19b6b4
@ -16,11 +16,40 @@ let
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allowUnfree = config.allowUnfree or false || builtins.getEnv "NIXPKGS_ALLOW_UNFREE" == "1";
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# Allowed licenses, defaults to no licenses
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whitelistedLicenses = config.whitelistedLicenses or [];
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whitelist = config.whitelistedLicenses or [];
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blacklist = config.blacklistedLicenses or [];
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# Blacklisted licenses, default to no licenses
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blacklistedLicenses = config.blacklistedLicenses or [];
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onlyLicenses = list:
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lib.lists.all (license:
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let l = lib.licenses.${license.shortName or "BROKEN"} or false; in
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if license == l then true else
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throw ''‘${builtins.toJSON license}’ is not an attribute of lib.licenses''
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) list;
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mutuallyExclusive = a: b:
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(builtins.length a) == 0 ||
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(!(builtins.elem (builtins.head a) b) &&
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mutuallyExclusive (builtins.tail a) b);
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areLicenseListsValid =
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if mutuallyExclusive whitelist blacklist then
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assert onlyLicenses whitelist; assert onlyLicenses blacklist; true
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else
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throw "whitelistedLicenses and blacklistedLicenses are not mutually exclusive.";
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hasLicense = attrs:
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builtins.hasAttr "meta" attrs && builtins.hasAttr "license" attrs.meta;
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hasWhitelistedLicense = assert areLicenseListsValid; attrs:
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hasLicense attrs && builtins.elem attrs.meta.license whitelist;
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hasBlacklistedLicense = assert areLicenseListsValid; attrs:
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hasLicense attrs && builtins.elem attrs.meta.license blacklist;
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allowBroken = config.allowBroken or false || builtins.getEnv "NIXPKGS_ALLOW_BROKEN" == "1";
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isUnfree = licenses: lib.lists.any (l:
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!l.free or true || l == "unfree" || l == "unfree-redistributable") licenses;
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# Alow granular checks to allow only some unfree packages
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# Example:
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@ -31,13 +60,17 @@ let
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# }
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allowUnfreePredicate = config.allowUnfreePredicate or (x: false);
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allowBroken = config.allowBroken or false || builtins.getEnv "NIXPKGS_ALLOW_BROKEN" == "1";
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# Check whether unfree packages are allowed and if not, whether the
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# package has an unfree license and is not explicitely allowed by the
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# `allowUNfreePredicate` function.
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hasDeniedUnfreeLicense = attrs:
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!allowUnfree &&
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hasLicense attrs &&
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isUnfree (lib.lists.toList attrs.meta.license) &&
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!allowUnfreePredicate attrs;
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unsafeGetAttrPos = builtins.unsafeGetAttrPos or (n: as: null);
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isUnfree = licenses: lib.lists.any (l:
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!l.free or true || l == "unfree" || l == "unfree-redistributable") licenses;
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defaultNativeBuildInputs = extraBuildInputs ++
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[ ../../build-support/setup-hooks/move-docs.sh
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../../build-support/setup-hooks/compress-man-pages.sh
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@ -60,75 +93,33 @@ let
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pos' = if pos != null then "‘" + pos.file + ":" + toString pos.line + "’" else "«unknown-file»";
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throwEvalHelp = unfreeOrBroken: whatIsWrong:
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assert (builtins.elem unfreeOrBroken [ "Unfree"
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"Broken"
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"BlacklistedLicense"
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]);
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throw ''
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Package ‘${attrs.name}’ in ${pos'} ${whatIsWrong}, refusing to evaluate.
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assert builtins.elem unfreeOrBroken ["Unfree" "Broken" "blacklisted"];
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throw ("Package ‘${attrs.name or "«name-missing»"}’ in ${pos'} ${whatIsWrong}, refusing to evaluate."
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+ (lib.strings.optionalString (unfreeOrBroken != "blacklisted") ''
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For `nixos-rebuild` you can set
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{ nixpkgs.config.allow${unfreeOrBroken} = true; }
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in configuration.nix to override this.
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For `nix-env` you can add
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{ allow${unfreeOrBroken} = true; }
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to ~/.nixpkgs/config.nix.
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'';
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''));
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# Check whether unfree packages are allowed and if not, whether the
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# package has an unfree license and is not explicitely allowed by the
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# `allowUNfreePredicate` function.
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hasDeniedUnfreeLicense = attrs:
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!allowUnfree &&
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isUnfree (lib.lists.toList attrs.meta.license or []) &&
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!allowUnfreePredicate attrs;
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# Check whether two sets are mutual exclusive
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mutualExclusive = a: b:
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(builtins.length a) == 0 ||
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(!(builtins.elem (builtins.head a) b) &&
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mutualExclusive (builtins.tail a) b);
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# Check whether an package has the license set
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licenseCheckable = attr:
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builtins.hasAttr "meta" attrs && builtins.hasAttr "license" attrs.meta;
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# Check whether the license of the package is whitelisted.
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# If the package has no license, print a warning about this and allow the
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# package (return that it is actually whitelisted)
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hasWhitelistedLicense = attrs:
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if licenseCheckable attrs then
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builtins.elem attrs.meta.license whitelistedLicenses
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else
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#builtins.trace "Has no license: ${attrs.name}, allowing installation"
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true;
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# Check whether the license of the package is blacklisted.
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# If the package has no license, print a warning about this and allow the
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# package (return that it is actually not blacklisted)
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hasBlacklistedLicense = attrs:
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if licenseCheckable attrs then
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builtins.elem attrs.meta.license blacklistedLicenses
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else
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#builtins.trace "Has no license: ${attrs.name}, allowing installation"
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false;
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licenseAllowed = attrs:
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if hasDeniedUnfreeLicense attrs && !(hasWhitelistedLicense attrs) then
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throwEvalHelp "Unfree" "has an unfree license ‘${attrs.meta.license.shortName}’ which is not whitelisted"
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else if hasBlacklistedLicense attrs then
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throwEvalHelp "blacklisted" "has the ‘${attrs.meta.license.shortName}’ license which is blacklisted"
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else if !allowBroken && attrs.meta.broken or false then
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throwEvalHelp "Broken" "is marked as broken"
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else if !allowBroken && builtins.hasAttr "platforms" attrs.meta && !lib.lists.elem result.system attrs.meta.platforms then
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throwEvalHelp "Broken" "is not supported on ‘${result.system}’"
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else true;
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in
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if !(mutualExclusive whitelistedLicenses blacklistedLicenses) then
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throw ''
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Package blacklist (${blacklistedLicenses}) and whitelist
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(${whitelistedLicenses}) are not mutual exclusive.
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''
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else if hasDeniedUnfreeLicense attrs &&
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!(hasWhitelistedLicense attrs) then
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throwEvalHelp "Unfree" "has an unfree license which is not whitelisted"
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else if hasBlacklistedLicense attrs then
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throwEvalHelp "BlacklistedLicense"
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"has a license which is blacklisted"
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else if !allowBroken && attrs.meta.broken or false then
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throwEvalHelp "Broken" "is marked as broken"
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else if !allowBroken && attrs.meta.platforms or null != null && !lib.lists.elem result.system attrs.meta.platforms then
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throwEvalHelp "Broken" "is not supported on ‘${result.system}’"
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else
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assert licenseAllowed attrs;
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lib.addPassthru (derivation (
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(removeAttrs attrs ["meta" "passthru" "crossAttrs"])
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// (let
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