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f748ccc318
Also, all URLs in package and module comments are updated.
At the time of this writing, the "Update History" page
(release notes) for tsm-client >=8.1.19 does not list any
"APARs" ("Authorized Program Analysis Reports") for 8.1.24.0.
298 lines
11 KiB
Nix
298 lines
11 KiB
Nix
{ config, lib, options, pkgs, ... }: # XXX migration code for freeform settings: `options` can be removed in 2025
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let optionsGlobal = options; in
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let
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inherit (lib.attrsets) attrNames attrValues mapAttrsToList removeAttrs;
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inherit (lib.lists) all allUnique concatLists concatMap elem isList map;
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inherit (lib.modules) mkDefault mkIf;
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inherit (lib.options) mkEnableOption mkOption mkPackageOption;
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inherit (lib.strings) concatLines match optionalString toLower;
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inherit (lib.trivial) isInt;
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inherit (lib.types) addCheck attrsOf coercedTo either enum int lines listOf nonEmptyStr nullOr oneOf path port singleLineStr strMatching submodule;
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scalarType =
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# see the option's description below for the
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# handling/transformation of each possible type
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oneOf [ (enum [ true null ]) int path singleLineStr ];
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# TSM rejects servername strings longer than 64 chars.
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servernameType = strMatching "[^[:space:]]{1,64}";
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serverOptions = { name, config, ... }: {
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freeformType = attrsOf (either scalarType (listOf scalarType));
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# Client system-options file directives are explained here:
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# https://www.ibm.com/docs/en/storage-protect/8.1.24?topic=commands-processing-options
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options.servername = mkOption {
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type = servernameType;
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default = name;
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example = "mainTsmServer";
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description = ''
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Local name of the IBM TSM server,
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must not contain space or more than 64 chars.
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'';
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};
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options.tcpserveraddress = mkOption {
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type = nonEmptyStr;
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example = "tsmserver.company.com";
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description = ''
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Host/domain name or IP address of the IBM TSM server.
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'';
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};
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options.tcpport = mkOption {
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type = addCheck port (p: p<=32767);
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default = 1500; # official default
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description = ''
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TCP port of the IBM TSM server.
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TSM does not support ports above 32767.
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'';
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};
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options.nodename = mkOption {
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type = nonEmptyStr;
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example = "MY-TSM-NODE";
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description = ''
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Target node name on the IBM TSM server.
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'';
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};
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options.genPasswd = mkEnableOption ''
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automatic client password generation.
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This option does *not* cause a line in
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{file}`dsm.sys` by itself, but generates a
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corresponding `passwordaccess` directive.
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The password will be stored in the directory
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given by the option {option}`passworddir`.
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*Caution*:
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If this option is enabled and the server forces
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to renew the password (e.g. on first connection),
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a random password will be generated and stored
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'';
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options.passwordaccess = mkOption {
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type = enum [ "generate" "prompt" ];
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visible = false;
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};
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options.passworddir = mkOption {
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type = nullOr path;
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default = null;
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example = "/home/alice/tsm-password";
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description = ''
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Directory that holds the TSM
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node's password information.
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'';
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};
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options.inclexcl = mkOption {
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type = coercedTo lines
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(pkgs.writeText "inclexcl.dsm.sys")
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(nullOr path);
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default = null;
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example = ''
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exclude.dir /nix/store
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include.encrypt /home/.../*
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'';
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description = ''
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Text lines with `include.*` and `exclude.*` directives
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to be used when sending files to the IBM TSM server,
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or an absolute path pointing to a file with such lines.
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'';
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};
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config.commmethod = mkDefault "v6tcpip"; # uses v4 or v6, based on dns lookup result
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config.passwordaccess = if config.genPasswd then "generate" else "prompt";
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# XXX migration code for freeform settings, these can be removed in 2025:
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options.warnings = optionsGlobal.warnings;
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options.assertions = optionsGlobal.assertions;
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imports = let inherit (lib.modules) mkRemovedOptionModule mkRenamedOptionModule; in [
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(mkRemovedOptionModule [ "extraConfig" ] "Please just add options directly to the server attribute set, cf. the description of `programs.tsmClient.servers`.")
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(mkRemovedOptionModule [ "text" ] "Please just add options directly to the server attribute set, cf. the description of `programs.tsmClient.servers`.")
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(mkRenamedOptionModule [ "name" ] [ "servername" ])
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(mkRenamedOptionModule [ "server" ] [ "tcpserveraddress" ])
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(mkRenamedOptionModule [ "port" ] [ "tcpport" ])
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(mkRenamedOptionModule [ "node" ] [ "nodename" ])
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(mkRenamedOptionModule [ "passwdDir" ] [ "passworddir" ])
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(mkRenamedOptionModule [ "includeExclude" ] [ "inclexcl" ])
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];
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};
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options.programs.tsmClient = {
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enable = mkEnableOption ''
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IBM Storage Protect (Tivoli Storage Manager, TSM)
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client command line applications with a
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client system-options file "dsm.sys"
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'';
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servers = mkOption {
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type = attrsOf (submodule serverOptions);
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default = {};
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example.mainTsmServer = {
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tcpserveraddress = "tsmserver.company.com";
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nodename = "MY-TSM-NODE";
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compression = "yes";
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};
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description = ''
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Server definitions ("stanzas")
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for the client system-options file.
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The name of each entry will be used for
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the internal `servername` by default.
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Each attribute will be transformed into a line
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with a key-value pair within the server's stanza.
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Integers as values will be
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canonically turned into strings.
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The boolean value `true` will be turned
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into a line with just the attribute's name.
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The value `null` will not generate a line.
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A list as values generates an entry for
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each value, according to the rules above.
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'';
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};
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defaultServername = mkOption {
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type = nullOr servernameType;
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default = null;
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example = "mainTsmServer";
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description = ''
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If multiple server stanzas are declared with
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{option}`programs.tsmClient.servers`,
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this option may be used to name a default
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server stanza that IBM TSM uses in the absence of
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a user-defined {file}`dsm.opt` file.
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This option translates to a
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`defaultserver` configuration line.
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'';
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};
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dsmSysText = mkOption {
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type = lines;
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readOnly = true;
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description = ''
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This configuration key contains the effective text
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of the client system-options file "dsm.sys".
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It should not be changed, but may be
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used to feed the configuration into other
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TSM-depending packages used on the system.
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'';
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};
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package = mkPackageOption pkgs "tsm-client" {
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example = "tsm-client-withGui";
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extraDescription = ''
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It will be used with `.override`
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to add paths to the client system-options file.
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'';
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};
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wrappedPackage = mkPackageOption pkgs "tsm-client" {
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default = null;
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extraDescription = ''
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This option is to provide the effective derivation,
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wrapped with the path to the
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client system-options file "dsm.sys".
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It should not be changed, but exists
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for other modules that want to call TSM executables.
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'';
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} // { readOnly = true; };
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};
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cfg = config.programs.tsmClient;
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servernames = map (s: s.servername) (attrValues cfg.servers);
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assertions =
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[
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{
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assertion = allUnique (map toLower servernames);
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message = ''
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TSM server names
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(option `programs.tsmClient.servers`)
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contain duplicate name
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(note that server names are case insensitive).
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'';
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}
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{
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assertion = (cfg.defaultServername!=null)->(elem cfg.defaultServername servernames);
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message = ''
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TSM default server name
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`programs.tsmClient.defaultServername="${cfg.defaultServername}"`
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not found in server names in
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`programs.tsmClient.servers`.
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'';
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}
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] ++ (mapAttrsToList (name: serverCfg: {
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assertion = all (key: null != match "[^[:space:]]+" key) (attrNames serverCfg);
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message = ''
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TSM server setting names in
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`programs.tsmClient.servers.${name}.*`
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contain spaces, but that's not allowed.
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'';
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}) cfg.servers) ++ (mapAttrsToList (name: serverCfg: {
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assertion = allUnique (map toLower (attrNames serverCfg));
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message = ''
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TSM server setting names in
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`programs.tsmClient.servers.${name}.*`
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contain duplicate names
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(note that setting names are case insensitive).
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'';
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}) cfg.servers)
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# XXX migration code for freeform settings, this can be removed in 2025:
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++ (enrichMigrationInfos "assertions" (addText: { assertion, message }: { inherit assertion; message = addText message; }));
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makeDsmSysLines = key: value:
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# Turn a key-value pair from the server options attrset
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# into zero (value==null), one (scalar value) or
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# more (value is list) configuration stanza lines.
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if isList value then concatMap (makeDsmSysLines key) value else # recurse into list
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if value == null then [ ] else # skip `null` value
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[ (" ${key}${
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if value == true then "" else # just output key if value is `true`
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if isInt value then " ${builtins.toString value}" else
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if path.check value then " \"${value}\"" else # enclose path in ".."
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if singleLineStr.check value then " ${value}" else
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throw "assertion failed: cannot convert type" # should never happen
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}") ];
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makeDsmSysStanza = {servername, ... }@serverCfg:
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let
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# drop special values that should not go into server config block
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attrs = removeAttrs serverCfg [ "servername" "genPasswd"
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# XXX migration code for freeform settings, these can be removed in 2025:
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"assertions" "warnings"
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"extraConfig" "text"
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"name" "server" "port" "node" "passwdDir" "includeExclude"
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];
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in
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''
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servername ${servername}
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${concatLines (concatLists (mapAttrsToList makeDsmSysLines attrs))}
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'';
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dsmSysText = ''
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**** IBM Storage Protect (Tivoli Storage Manager)
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**** client system-options file "dsm.sys".
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**** Do not edit!
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**** This file is generated by NixOS configuration.
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${optionalString (cfg.defaultServername!=null) "defaultserver ${cfg.defaultServername}"}
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${concatLines (map makeDsmSysStanza (attrValues cfg.servers))}
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'';
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# XXX migration code for freeform settings, this can be removed in 2025:
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enrichMigrationInfos = what: how: concatLists (
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mapAttrsToList
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(name: serverCfg: map (how (text: "In `programs.tsmClient.servers.${name}`: ${text}")) serverCfg."${what}")
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cfg.servers
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);
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in
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{
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inherit options;
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config = mkIf cfg.enable {
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inherit assertions;
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programs.tsmClient.dsmSysText = dsmSysText;
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programs.tsmClient.wrappedPackage = cfg.package.override rec {
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dsmSysCli = pkgs.writeText "dsm.sys" cfg.dsmSysText;
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dsmSysApi = dsmSysCli;
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};
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environment.systemPackages = [ cfg.wrappedPackage ];
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# XXX migration code for freeform settings, this can be removed in 2025:
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warnings = enrichMigrationInfos "warnings" (addText: addText);
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};
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meta.maintainers = [ lib.maintainers.yarny ];
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}
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