stdenv: separate all meta-checking code (~200 lines)
Only cosmetic changes are done otherwise. Real refactoring is left for later. There's a small slow-down on my machine: $ time nix-env -qa -P >/dev/null gets from ~2.8 to ~3.5 seconds (negligible change in RAM). That's most likely caused by sharing less computation between different mkDerivation calls, and I plan to improve that soon.
This commit is contained in:
Vladimír Čunát
John Ericson
parent
dfc004e69c
commit
e8e57452f4
pkgs/stdenv/generic
197
pkgs/stdenv/generic/check-meta.nix
Normal file
197
pkgs/stdenv/generic/check-meta.nix
Normal file
@ -0,0 +1,197 @@
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# Extend a derivation with checks for brokenness, license, etc. Throw a
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# descriptive error when the check fails; return `derivationArg` otherwise.
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# Note: no dependencies are checked in this step.
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{ lib, config, system, meta, derivationArg, mkDerivationArg }:
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let
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attrs = mkDerivationArg; # TODO: probably get rid of passing this one
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# See discussion at https://github.com/NixOS/nixpkgs/pull/25304#issuecomment-298385426
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# for why this defaults to false, but I (@copumpkin) want to default it to true soon.
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shouldCheckMeta = config.checkMeta or false;
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allowUnfree = config.allowUnfree or false || builtins.getEnv "NIXPKGS_ALLOW_UNFREE" == "1";
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whitelist = config.whitelistedLicenses or [];
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blacklist = 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.${license.shortName or "BROKEN"} or false; in
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if license == l then true else
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throw ''‘${showLicense license}’ is not an attribute of lib.licenses''
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) list;
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areLicenseListsValid =
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if lib.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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attrs ? meta.license;
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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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# {pkgs, ...}:
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# {
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# allowUnfree = false;
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# allowUnfreePredicate = (x: pkgs.lib.hasPrefix "flashplayer-" x.name);
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# }
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allowUnfreePredicate = config.allowUnfreePredicate or (x: false);
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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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allowInsecureDefaultPredicate = x: builtins.elem x.name (config.permittedInsecurePackages or []);
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allowInsecurePredicate = x: (config.allowUnfreePredicate or allowInsecureDefaultPredicate) x;
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hasAllowedInsecure = attrs:
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(attrs.meta.knownVulnerabilities or []) == [] ||
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allowInsecurePredicate attrs ||
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builtins.getEnv "NIXPKGS_ALLOW_INSECURE" == "1";
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showLicense = license: license.shortName or "unknown";
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pos_str = meta.position or "«unknown-file»";
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remediation = {
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unfree = remediate_whitelist "Unfree";
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broken = remediate_whitelist "Broken";
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blacklisted = x: "";
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insecure = remediate_insecure;
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unknown-meta = x: "";
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};
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remediate_whitelist = allow_attr: attrs:
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''
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a) For `nixos-rebuild` you can set
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{ nixpkgs.config.allow${allow_attr} = true; }
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in configuration.nix to override this.
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b) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
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{ allow${allow_attr} = true; }
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to ~/.config/nixpkgs/config.nix.
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'';
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remediate_insecure = attrs:
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''
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Known issues:
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'' + (lib.fold (issue: default: "${default} - ${issue}\n") "" attrs.meta.knownVulnerabilities) + ''
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You can install it anyway by whitelisting this package, using the
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following methods:
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a) for `nixos-rebuild` you can add ‘${attrs.name or "«name-missing»"}’ to
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`nixpkgs.config.permittedInsecurePackages` in the configuration.nix,
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like so:
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{
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nixpkgs.config.permittedInsecurePackages = [
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"${attrs.name or "«name-missing»"}"
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];
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}
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b) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
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‘${attrs.name or "«name-missing»"}’ to `permittedInsecurePackages` in
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~/.config/nixpkgs/config.nix, like so:
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{
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permittedInsecurePackages = [
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"${attrs.name or "«name-missing»"}"
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];
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}
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'';
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throwEvalHelp = { reason , errormsg ? "" }:
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throw (''
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Package ‘${attrs.name or "«name-missing»"}’ in ${pos_str} ${errormsg}, refusing to evaluate.
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'' + ((builtins.getAttr reason remediation) attrs));
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metaTypes = with lib.types; rec {
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# These keys are documented
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description = str;
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longDescription = str;
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branch = str;
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homepage = str;
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downloadPage = str;
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license = either (listOf lib.types.attrs) (either lib.types.attrs str);
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maintainers = listOf str;
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priority = int;
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platforms = listOf str;
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hydraPlatforms = listOf str;
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broken = bool;
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# Weirder stuff that doesn't appear in the documentation?
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version = str;
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tag = str;
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updateWalker = bool;
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executables = listOf str;
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outputsToInstall = listOf str;
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position = str;
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repositories = attrsOf str;
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isBuildPythonPackage = platforms;
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schedulingPriority = str;
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downloadURLRegexp = str;
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isFcitxEngine = bool;
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isIbusEngine = bool;
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};
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checkMetaAttr = k: v:
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if metaTypes?${k} then
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if metaTypes.${k}.check v then null else "key '${k}' has a value ${v} of an invalid type ${builtins.typeOf v}; expected ${metaTypes.${k}.description}"
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else "key '${k}' is unrecognized; expected one of: \n\t [${lib.concatMapStringsSep ", " (x: "'${x}'") (lib.attrNames metaTypes)}]";
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checkMeta = meta: if shouldCheckMeta then lib.remove null (lib.mapAttrsToList checkMetaAttr meta) else [];
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# Check if a derivation is valid, that is whether it passes checks for
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# e.g brokenness or license.
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#
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# Return { valid: Bool } and additionally
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# { reason: String; errormsg: String } if it is not valid, where
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# reason is one of "unfree", "blacklisted" or "broken".
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checkValidity = attrs:
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if hasDeniedUnfreeLicense attrs && !(hasWhitelistedLicense attrs) then
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{ valid = false; reason = "unfree"; errormsg = "has an unfree license (‘${showLicense attrs.meta.license}’)"; }
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else if hasBlacklistedLicense attrs then
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{ valid = false; reason = "blacklisted"; errormsg = "has a blacklisted license (‘${showLicense attrs.meta.license}’)"; }
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else if !allowBroken && attrs.meta.broken or false then
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{ valid = false; reason = "broken"; errormsg = "is marked as broken"; }
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else if !allowBroken && attrs.meta.platforms or null != null && !lib.lists.elem system attrs.meta.platforms then
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{ valid = false; reason = "broken"; errormsg = "is not supported on ‘${system}’"; }
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else if !(hasAllowedInsecure attrs) then
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{ valid = false; reason = "insecure"; errormsg = "is marked as insecure"; }
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else let res = checkMeta (attrs.meta or {}); in if res != [] then
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{ valid = false; reason = "unknown-meta"; errormsg = "has an invalid meta attrset:${lib.concatMapStrings (x: "\n\t - " + x) res}"; }
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else { valid = true; };
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# Throw an error if trying to evaluate an non-valid derivation
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validityCondition =
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let v = checkValidity attrs;
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in if !v.valid
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then throwEvalHelp (removeAttrs v ["valid"])
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else true;
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in
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assert validityCondition;
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derivationArg
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@ -27,72 +27,8 @@ let lib = import ../../../lib; in lib.makeOverridable (
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let
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let
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inherit (targetPlatform) system;
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inherit (targetPlatform) system;
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# See discussion at https://github.com/NixOS/nixpkgs/pull/25304#issuecomment-298385426
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# for why this defaults to false, but I (@copumpkin) want to default it to true soon.
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shouldCheckMeta = config.checkMeta or false;
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allowUnfree = config.allowUnfree or false || builtins.getEnv "NIXPKGS_ALLOW_UNFREE" == "1";
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whitelist = config.whitelistedLicenses or [];
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blacklist = config.blacklistedLicenses or [];
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ifDarwin = attrs: if system == "x86_64-darwin" then attrs else {};
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ifDarwin = attrs: if system == "x86_64-darwin" then attrs else {};
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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 ''‘${showLicense license}’ is not an attribute of lib.licenses''
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) list;
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areLicenseListsValid =
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if lib.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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attrs ? meta.license;
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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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# {pkgs, ...}:
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# {
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# allowUnfree = false;
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# allowUnfreePredicate = (x: pkgs.lib.hasPrefix "flashplayer-" x.name);
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# }
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allowUnfreePredicate = config.allowUnfreePredicate or (x: false);
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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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allowInsecureDefaultPredicate = x: builtins.elem x.name (config.permittedInsecurePackages or []);
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allowInsecurePredicate = x: (config.allowUnfreePredicate or allowInsecureDefaultPredicate) x;
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hasAllowedInsecure = attrs:
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(attrs.meta.knownVulnerabilities or []) == [] ||
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allowInsecurePredicate attrs ||
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builtins.getEnv "NIXPKGS_ALLOW_INSECURE" == "1";
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showLicense = license: license.shortName or "unknown";
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defaultNativeBuildInputs = extraBuildInputs ++
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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/move-docs.sh
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../../build-support/setup-hooks/compress-man-pages.sh
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../../build-support/setup-hooks/compress-man-pages.sh
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@ -151,120 +87,6 @@ let
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(map (drv: drv.crossDrv or drv) propagatedBuildInputs)
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(map (drv: drv.crossDrv or drv) propagatedBuildInputs)
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];
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];
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in let
|
in let
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pos_str = if pos != null then "‘" + pos.file + ":" + toString pos.line + "’" else "«unknown-file»";
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remediation = {
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unfree = remediate_whitelist "Unfree";
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broken = remediate_whitelist "Broken";
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blacklisted = x: "";
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insecure = remediate_insecure;
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unknown-meta = x: "";
|
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};
|
|
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remediate_whitelist = allow_attr: attrs:
|
|
||||||
''
|
|
||||||
a) For `nixos-rebuild` you can set
|
|
||||||
{ nixpkgs.config.allow${allow_attr} = true; }
|
|
||||||
in configuration.nix to override this.
|
|
||||||
|
|
||||||
b) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
|
|
||||||
{ allow${allow_attr} = true; }
|
|
||||||
to ~/.config/nixpkgs/config.nix.
|
|
||||||
'';
|
|
||||||
|
|
||||||
remediate_insecure = attrs:
|
|
||||||
''
|
|
||||||
|
|
||||||
Known issues:
|
|
||||||
|
|
||||||
'' + (lib.fold (issue: default: "${default} - ${issue}\n") "" attrs.meta.knownVulnerabilities) + ''
|
|
||||||
|
|
||||||
You can install it anyway by whitelisting this package, using the
|
|
||||||
following methods:
|
|
||||||
|
|
||||||
a) for `nixos-rebuild` you can add ‘${attrs.name or "«name-missing»"}’ to
|
|
||||||
`nixpkgs.config.permittedInsecurePackages` in the configuration.nix,
|
|
||||||
like so:
|
|
||||||
|
|
||||||
{
|
|
||||||
nixpkgs.config.permittedInsecurePackages = [
|
|
||||||
"${attrs.name or "«name-missing»"}"
|
|
||||||
];
|
|
||||||
}
|
|
||||||
|
|
||||||
b) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
|
|
||||||
‘${attrs.name or "«name-missing»"}’ to `permittedInsecurePackages` in
|
|
||||||
~/.config/nixpkgs/config.nix, like so:
|
|
||||||
|
|
||||||
{
|
|
||||||
permittedInsecurePackages = [
|
|
||||||
"${attrs.name or "«name-missing»"}"
|
|
||||||
];
|
|
||||||
}
|
|
||||||
|
|
||||||
'';
|
|
||||||
|
|
||||||
|
|
||||||
throwEvalHelp = { reason , errormsg ? "" }:
|
|
||||||
throw (''
|
|
||||||
Package ‘${attrs.name or "«name-missing»"}’ in ${pos_str} ${errormsg}, refusing to evaluate.
|
|
||||||
|
|
||||||
'' + ((builtins.getAttr reason remediation) attrs));
|
|
||||||
|
|
||||||
metaTypes = with lib.types; rec {
|
|
||||||
# These keys are documented
|
|
||||||
description = str;
|
|
||||||
longDescription = str;
|
|
||||||
branch = str;
|
|
||||||
homepage = str;
|
|
||||||
downloadPage = str;
|
|
||||||
license = either (listOf lib.types.attrs) (either lib.types.attrs str);
|
|
||||||
maintainers = listOf str;
|
|
||||||
priority = int;
|
|
||||||
platforms = listOf str;
|
|
||||||
hydraPlatforms = listOf str;
|
|
||||||
broken = bool;
|
|
||||||
|
|
||||||
# Weirder stuff that doesn't appear in the documentation?
|
|
||||||
version = str;
|
|
||||||
tag = str;
|
|
||||||
updateWalker = bool;
|
|
||||||
executables = listOf str;
|
|
||||||
outputsToInstall = listOf str;
|
|
||||||
position = str;
|
|
||||||
repositories = attrsOf str;
|
|
||||||
isBuildPythonPackage = platforms;
|
|
||||||
schedulingPriority = str;
|
|
||||||
downloadURLRegexp = str;
|
|
||||||
isFcitxEngine = bool;
|
|
||||||
isIbusEngine = bool;
|
|
||||||
};
|
|
||||||
|
|
||||||
checkMetaAttr = k: v:
|
|
||||||
if metaTypes?${k} then
|
|
||||||
if metaTypes.${k}.check v then null else "key '${k}' has a value ${v} of an invalid type ${builtins.typeOf v}; expected ${metaTypes.${k}.description}"
|
|
||||||
else "key '${k}' is unrecognized; expected one of: \n\t [${lib.concatMapStringsSep ", " (x: "'${x}'") (lib.attrNames metaTypes)}]";
|
|
||||||
checkMeta = meta: if shouldCheckMeta then lib.remove null (lib.mapAttrsToList checkMetaAttr meta) else [];
|
|
||||||
|
|
||||||
# Check if a derivation is valid, that is whether it passes checks for
|
|
||||||
# e.g brokenness or license.
|
|
||||||
#
|
|
||||||
# Return { valid: Bool } and additionally
|
|
||||||
# { reason: String; errormsg: String } if it is not valid, where
|
|
||||||
# reason is one of "unfree", "blacklisted" or "broken".
|
|
||||||
checkValidity = attrs:
|
|
||||||
if hasDeniedUnfreeLicense attrs && !(hasWhitelistedLicense attrs) then
|
|
||||||
{ valid = false; reason = "unfree"; errormsg = "has an unfree license (‘${showLicense attrs.meta.license}’)"; }
|
|
||||||
else if hasBlacklistedLicense attrs then
|
|
||||||
{ valid = false; reason = "blacklisted"; errormsg = "has a blacklisted license (‘${showLicense attrs.meta.license}’)"; }
|
|
||||||
else if !allowBroken && attrs.meta.broken or false then
|
|
||||||
{ valid = false; reason = "broken"; errormsg = "is marked as broken"; }
|
|
||||||
else if !allowBroken && attrs.meta.platforms or null != null && !lib.lists.elem result.system attrs.meta.platforms then
|
|
||||||
{ valid = false; reason = "broken"; errormsg = "is not supported on ‘${result.system}’"; }
|
|
||||||
else if !(hasAllowedInsecure attrs) then
|
|
||||||
{ valid = false; reason = "insecure"; errormsg = "is marked as insecure"; }
|
|
||||||
else let res = checkMeta (attrs.meta or {}); in if res != [] then
|
|
||||||
{ valid = false; reason = "unknown-meta"; errormsg = "has an invalid meta attrset:${lib.concatMapStrings (x: "\n\t - " + x) res}"; }
|
|
||||||
else { valid = true; };
|
|
||||||
|
|
||||||
outputs' =
|
outputs' =
|
||||||
outputs ++
|
outputs ++
|
||||||
@ -281,13 +103,6 @@ let
|
|||||||
|
|
||||||
propagatedDependencies' = map lib.chooseDevOutputs propagatedDependencies;
|
propagatedDependencies' = map lib.chooseDevOutputs propagatedDependencies;
|
||||||
|
|
||||||
# Throw an error if trying to evaluate an non-valid derivation
|
|
||||||
validityCondition =
|
|
||||||
let v = checkValidity attrs;
|
|
||||||
in if !v.valid
|
|
||||||
then throwEvalHelp (removeAttrs v ["valid"])
|
|
||||||
else true;
|
|
||||||
|
|
||||||
derivationArg =
|
derivationArg =
|
||||||
(removeAttrs attrs
|
(removeAttrs attrs
|
||||||
["meta" "passthru" "crossAttrs" "pos"
|
["meta" "passthru" "crossAttrs" "pos"
|
||||||
@ -360,17 +175,21 @@ let
|
|||||||
|
|
||||||
in
|
in
|
||||||
|
|
||||||
assert validityCondition;
|
lib.addPassthru
|
||||||
|
(derivation (import ./check-meta.nix
|
||||||
lib.addPassthru (derivation derivationArg) (
|
{
|
||||||
{
|
inherit lib config meta derivationArg;
|
||||||
overrideAttrs = f: mkDerivation (attrs // (f attrs));
|
mkDerivationArg = attrs;
|
||||||
inherit meta passthru;
|
inherit system; # TODO: cross-compilation?
|
||||||
} //
|
}))
|
||||||
# Pass through extra attributes that are not inputs, but
|
( {
|
||||||
# should be made available to Nix expressions using the
|
overrideAttrs = f: mkDerivation (attrs // (f attrs));
|
||||||
# derivation (e.g., in assertions).
|
inherit meta passthru;
|
||||||
passthru);
|
} //
|
||||||
|
# Pass through extra attributes that are not inputs, but
|
||||||
|
# should be made available to Nix expressions using the
|
||||||
|
# derivation (e.g., in assertions).
|
||||||
|
passthru);
|
||||||
|
|
||||||
# The stdenv that we are producing.
|
# The stdenv that we are producing.
|
||||||
result =
|
result =
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user