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version: include darwin metadata in system label

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This makes it possible to trace back what version of both darwin and
nixpkgs the system was built with.
This commit is contained in:
Daiderd Jordan 2019-05-04 20:59:25 +02:00
parent 3da5c1a322
commit ba29af7ae3
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GPG key ID: D02435D05B810C96
2 changed files with 38 additions and 24 deletions
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2
modules/documentation/default.nix
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@ -13,7 +13,7 @@ let
manual = import ../../doc/manual rec {
inherit pkgs config;
version = "0.0.1";
revision = "release-${version}";
revision = "master";
options =
let
scrubbedEval = evalModules {

60
modules/system/version.nix
View file

@ -7,19 +7,27 @@ let
defaultStateVersion = options.system.stateVersion.default;
gitCommitId = lib.substring 0 7 (commitIdFromGitRepo gitRepo);
gitRepo = "${toString pkgs.path}/.git/";
parseGit = path:
if pathExists "${path}/.git/" then rec {
rev = commitIdFromGitRepo "${path}/.git/";
shortRev = substring 0 7 rev;
}
else if pathExists "${path}/.git-revision" then rec {
rev = fileContents "${path}/.git-revision";
shortRev = substring 0 7 rev;
}
else {
shortRev = "0000000";
};
darwin = parseGit (toString ../..);
nixpkgs = parseGit (toString pkgs.path);
releaseFile = "${toString pkgs.path}/.version";
revisionFile = "${toString pkgs.path}/.git-revision";
suffixFile = "${toString pkgs.path}/.version-suffix";
revision = if builtins.pathExists gitRepo then gitCommitId
else if builtins.pathExists revisionFile then fileContents revisionFile
else null;
versionSuffix = if builtins.pathExists gitRepo then ".git." + gitCommitId
else if builtins.pathExists suffixFile then fileContents suffixFile
else null;
nixpkgsSuffix = if pathExists suffixFile then fileContents suffixFile
else ".git." + nixpkgs.shortRev;
in
{
@ -42,14 +50,24 @@ in
system.darwinLabel = mkOption {
type = types.str;
default = cfg.nixpkgsVersion;
description = "Label to be used in the names of generated outputs.";
};
system.darwinVersion = mkOption {
internal = true;
type = types.str;
description = "The full darwin version (e.g. <literal>16.03.1160.f2d4ee1</literal>).";
};
system.darwinRevision = mkOption {
internal = true;
type = types.str;
description = "The darwin git revision from which this configuration was built.";
};
system.nixpkgsRelease = mkOption {
readOnly = true;
type = types.str;
default = fileContents releaseFile;
description = "The nixpkgs release (e.g. <literal>16.03</literal>).";
};
@ -59,17 +77,9 @@ in
description = "The full nixpkgs version (e.g. <literal>16.03.1160.f2d4ee1</literal>).";
};
system.nixpkgsVersionSuffix = mkOption {
internal = true;
type = types.str;
default = "pre-git";
description = "The nixpkgs version suffix (e.g. <literal>1160.f2d4ee1</literal>).";
};
system.nixpkgsRevision = mkOption {
internal = true;
type = types.str;
default = "master";
description = "The nixpkgs git revision from which this configuration was built.";
};
};
@ -78,9 +88,13 @@ in
# These defaults are set here rather than up there so that
# changing them would not rebuild the manual
system.nixpkgsVersion = mkDefault (cfg.nixpkgsRelease + cfg.nixpkgsVersionSuffix);
system.nixpkgsRevision = mkIf (revision != null) (mkDefault revision);
system.nixpkgsVersionSuffix = mkIf (versionSuffix != null) (mkDefault versionSuffix);
system.darwinLabel = "${cfg.nixpkgsVersion}+${cfg.darwinVersion}";
system.darwinVersion = "darwin" + toString cfg.stateVersion + "." + darwin.shortRev;
system.darwinRevision = mkIf (darwin ? rev) (mkDefault darwin.rev);
system.nixpkgsVersion = mkDefault (cfg.nixpkgsRelease + nixpkgsSuffix);
system.nixpkgsRelease = mkDefault (fileContents releaseFile);
system.nixpkgsRevision = mkIf (nixpkgs ? rev) (mkDefault nixpkgs.rev);
assertions = [ { assertion = cfg.stateVersion <= defaultStateVersion; message = "system.stateVersion = ${toString cfg.stateVersion}; is not a valid value"; } ];