lib: fix mixed tab/space indents, trailing whitespace, etc
Nix style seems to have settled on not using spaces between bound variable names and the lambda : so I also tried to make those somewhat more consistent throughout.
This commit is contained in:
Benjamin Staffin
parent
3ea16e98b4
commit
d9123a2329
@ -1,4 +1,4 @@
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{lib, pkgs} :
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{lib, pkgs}:
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let inherit (lib) nv nvs; in
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{
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@ -19,7 +19,7 @@ let inherit (lib) nv nvs; in
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# * vim_configurable
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#
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# A minimal example illustrating most features would look like this:
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# let base = composableDerivation { (fixed : let inherit (fixed.fixed) name in {
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# let base = composableDerivation { (fixed: let inherit (fixed.fixed) name in {
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# src = fetchurl {
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# }
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# buildInputs = [A];
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@ -79,7 +79,7 @@ let inherit (lib) nv nvs; in
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# consider adding addtional elements by derivation.merge { removeAttrs = ["elem"]; };
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removeAttrs ? ["cfg" "flags"]
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}: (lib.defaultOverridableDelayableArgs ( a: mkDerivation a)
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}: (lib.defaultOverridableDelayableArgs ( a: mkDerivation a)
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{
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inherit applyPreTidy removeAttrs;
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}).merge;
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@ -24,10 +24,10 @@ rec {
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traceValSeq = v: traceVal (builtins.deepSeq v v);
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# this can help debug your code as well - designed to not produce thousands of lines
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traceShowVal = x : trace (showVal x) x;
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traceShowVal = x: trace (showVal x) x;
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traceShowValMarked = str: x: trace (str + showVal x) x;
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attrNamesToStr = a : lib.concatStringsSep "; " (map (x : "${x}=") (attrNames a));
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showVal = x :
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attrNamesToStr = a: lib.concatStringsSep "; " (map (x: "${x}=") (attrNames a));
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showVal = x:
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if isAttrs x then
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if x ? outPath then "x is a derivation, name ${if x ? name then x.name else "<no name>"}, { ${attrNamesToStr x} }"
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else "x is attr set { ${attrNamesToStr x} }"
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@ -43,9 +43,9 @@ rec {
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# trace the arguments passed to function and its result
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# maybe rewrite these functions in a traceCallXml like style. Then one function is enough
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traceCall = n : f : a : let t = n2 : x : traceShowValMarked "${n} ${n2}:" x; in t "result" (f (t "arg 1" a));
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traceCall2 = n : f : a : b : let t = n2 : x : traceShowValMarked "${n} ${n2}:" x; in t "result" (f (t "arg 1" a) (t "arg 2" b));
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traceCall3 = n : f : a : b : c : let t = n2 : x : traceShowValMarked "${n} ${n2}:" x; in t "result" (f (t "arg 1" a) (t "arg 2" b) (t "arg 3" c));
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traceCall = n: f: a: let t = n2: x: traceShowValMarked "${n} ${n2}:" x; in t "result" (f (t "arg 1" a));
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traceCall2 = n: f: a: b: let t = n2: x: traceShowValMarked "${n} ${n2}:" x; in t "result" (f (t "arg 1" a) (t "arg 2" b));
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traceCall3 = n: f: a: b: c: let t = n2: x: traceShowValMarked "${n} ${n2}:" x; in t "result" (f (t "arg 1" a) (t "arg 2" b) (t "arg 3" c));
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# FIXME: rename this?
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traceValIfNot = c: x:
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@ -71,7 +71,7 @@ rec {
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# create a test assuming that list elements are true
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# usage: { testX = allTrue [ true ]; }
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testAllTrue = expr : { inherit expr; expected = map (x: true) expr; };
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testAllTrue = expr: { inherit expr; expected = map (x: true) expr; };
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strict = v:
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trace "Warning: strict is deprecated and will be removed in the next release"
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@ -16,23 +16,23 @@ rec {
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defaultMergeArg = x : y: if builtins.isAttrs y then
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y
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else
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else
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(y x);
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defaultMerge = x: y: x // (defaultMergeArg x y);
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foldArgs = merger: f: init: x:
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let arg=(merger init (defaultMergeArg init x));
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# now add the function with composed args already applied to the final attrs
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base = (setAttrMerge "passthru" {} (f arg)
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( z : z // rec {
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function = foldArgs merger f arg;
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args = (lib.attrByPath ["passthru" "args"] {} z) // x;
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foldArgs = merger: f: init: x:
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let arg = (merger init (defaultMergeArg init x));
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# now add the function with composed args already applied to the final attrs
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base = (setAttrMerge "passthru" {} (f arg)
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( z: z // rec {
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function = foldArgs merger f arg;
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args = (lib.attrByPath ["passthru" "args"] {} z) // x;
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} ));
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withStdOverrides = base // {
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override = base.passthru.function;
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} ;
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withStdOverrides = base // {
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override = base.passthru.function;
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};
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in
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withStdOverrides;
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withStdOverrides;
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# predecessors: proposed replacement for applyAndFun (which has a bug cause it merges twice)
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# the naming "overridableDelayableArgs" tries to express that you can
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@ -49,35 +49,35 @@ rec {
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#
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# examples: see test cases "res" below;
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overridableDelayableArgs =
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f : # the function applied to the arguments
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initial : # you pass attrs, the functions below are passing a function taking the fix argument
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f: # the function applied to the arguments
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initial: # you pass attrs, the functions below are passing a function taking the fix argument
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let
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takeFixed = if isFunction initial then initial else (fixed : initial); # transform initial to an expression always taking the fixed argument
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tidy = args :
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tidy = args:
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let # apply all functions given in "applyPreTidy" in sequence
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applyPreTidyFun = fold ( n : a : x : n ( a x ) ) lib.id (maybeAttr "applyPreTidy" [] args);
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applyPreTidyFun = fold ( n: a: x: n ( a x ) ) lib.id (maybeAttr "applyPreTidy" [] args);
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in removeAttrs (applyPreTidyFun args) ( ["applyPreTidy"] ++ (maybeAttr "removeAttrs" [] args) ); # tidy up args before applying them
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fun = n : x :
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let newArgs = fixed :
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let args = takeFixed fixed;
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mergeFun = args.${n};
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in if isAttrs x then (mergeFun args x)
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else assert isFunction x;
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mergeFun args (x ( args // { inherit fixed; }));
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in overridableDelayableArgs f newArgs;
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fun = n: x:
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let newArgs = fixed:
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let args = takeFixed fixed;
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mergeFun = args.${n};
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in if isAttrs x then (mergeFun args x)
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else assert isFunction x;
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mergeFun args (x ( args // { inherit fixed; }));
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in overridableDelayableArgs f newArgs;
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in
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(f (tidy (lib.fix takeFixed))) // {
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merge = fun "mergeFun";
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replace = fun "keepFun";
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};
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defaultOverridableDelayableArgs = f :
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defaultOverridableDelayableArgs = f:
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let defaults = {
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mergeFun = mergeAttrByFunc; # default merge function. merge strategie (concatenate lists, strings) is given by mergeAttrBy
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keepFun = a : b : { inherit (a) removeAttrs mergeFun keepFun mergeAttrBy; } // b; # even when using replace preserve these values
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keepFun = a: b: { inherit (a) removeAttrs mergeFun keepFun mergeAttrBy; } // b; # even when using replace preserve these values
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applyPreTidy = []; # list of functions applied to args before args are tidied up (usage case : prepareDerivationArgs)
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mergeAttrBy = mergeAttrBy // {
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applyPreTidy = a : b : a ++ b;
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removeAttrs = a : b: a ++ b;
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applyPreTidy = a: b: a ++ b;
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removeAttrs = a: b: a ++ b;
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};
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removeAttrs = ["mergeFun" "keepFun" "mergeAttrBy" "removeAttrs" "fixed" ]; # before applying the arguments to the function make sure these names are gone
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};
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@ -86,7 +86,7 @@ rec {
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# rec { # an example of how composedArgsAndFun can be used
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# a = composedArgsAndFun (x : x) { a = ["2"]; meta = { d = "bar";}; };
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# a = composedArgsAndFun (x: x) { a = ["2"]; meta = { d = "bar";}; };
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# # meta.d will be lost ! It's your task to preserve it (eg using a merge function)
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# b = a.passthru.function { a = [ "3" ]; meta = { d2 = "bar2";}; };
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# # instead of passing/ overriding values you can use a merge function:
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@ -119,7 +119,7 @@ rec {
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else if val == true || val == false then false
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else null;
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# Return true only if there is an attribute and it is true.
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checkFlag = attrSet: name:
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if name == "true" then true else
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@ -134,29 +134,29 @@ rec {
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( attrByPath [name] (if checkFlag attrSet name then true else
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if argList == [] then null else
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let x = builtins.head argList; in
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if (head x) == name then
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if (head x) == name then
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(head (tail x))
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else (getValue attrSet
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else (getValue attrSet
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(tail argList) name)) attrSet );
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# Input : attrSet, [[name default] ...], [ [flagname reqs..] ... ]
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# Output : are reqs satisfied? It's asserted.
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checkReqs = attrSet : argList : condList :
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checkReqs = attrSet: argList: condList:
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(
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fold lib.and true
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(map (x: let name = (head x) ; in
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((checkFlag attrSet name) ->
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fold lib.and true
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(map (x: let name = (head x); in
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((checkFlag attrSet name) ->
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(fold lib.and true
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(map (y: let val=(getValue attrSet argList y); in
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(val!=null) && (val!=false))
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(tail x))))) condList)) ;
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(val!=null) && (val!=false))
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(tail x))))) condList));
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# This function has O(n^2) performance.
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uniqList = {inputList, acc ? []} :
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let go = xs : acc :
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uniqList = { inputList, acc ? [] }:
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let go = xs: acc:
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if xs == []
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then []
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else let x = head xs;
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@ -164,26 +164,26 @@ rec {
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in y ++ go (tail xs) (y ++ acc);
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in go inputList acc;
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uniqListExt = {inputList, outputList ? [],
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getter ? (x : x), compare ? (x: y: x==y)}:
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uniqListExt = { inputList,
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outputList ? [],
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getter ? (x: x),
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compare ? (x: y: x==y) }:
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if inputList == [] then outputList else
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let x=head inputList;
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isX = y: (compare (getter y) (getter x));
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newOutputList = outputList ++
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(if any isX outputList then [] else [x]);
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in uniqListExt {outputList=newOutputList;
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inputList = (tail inputList);
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inherit getter compare;
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};
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let x = head inputList;
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isX = y: (compare (getter y) (getter x));
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newOutputList = outputList ++
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(if any isX outputList then [] else [x]);
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in uniqListExt { outputList = newOutputList;
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inputList = (tail inputList);
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inherit getter compare;
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};
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condConcat = name: list: checker:
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if list == [] then name else
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if checker (head list) then
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condConcat
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(name + (head (tail list)))
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(tail (tail list))
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if checker (head list) then
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condConcat
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(name + (head (tail list)))
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(tail (tail list))
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checker
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else condConcat
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name (tail (tail list)) checker;
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@ -202,12 +202,12 @@ rec {
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in
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work startSet [] [];
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innerModifySumArgs = f: x: a: b: if b == null then (f a b) // x else
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innerModifySumArgs = f: x: a: b: if b == null then (f a b) // x else
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innerModifySumArgs f x (a // b);
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modifySumArgs = f: x: innerModifySumArgs f x {};
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innerClosePropagation = acc : xs :
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innerClosePropagation = acc: xs:
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if xs == []
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then acc
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else let y = head xs;
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@ -227,31 +227,31 @@ rec {
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closePropagation = list: (uniqList {inputList = (innerClosePropagation [] list);});
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# calls a function (f attr value ) for each record item. returns a list
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mapAttrsFlatten = f : r : map (attr: f attr r.${attr}) (attrNames r);
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mapAttrsFlatten = f: r: map (attr: f attr r.${attr}) (attrNames r);
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# attribute set containing one attribute
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nvs = name : value : listToAttrs [ (nameValuePair name value) ];
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nvs = name: value: listToAttrs [ (nameValuePair name value) ];
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# adds / replaces an attribute of an attribute set
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setAttr = set : name : v : set // (nvs name v);
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setAttr = set: name: v: set // (nvs name v);
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# setAttrMerge (similar to mergeAttrsWithFunc but only merges the values of a particular name)
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# setAttrMerge "a" [] { a = [2];} (x : x ++ [3]) -> { a = [2 3]; }
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# setAttrMerge "a" [] { } (x : x ++ [3]) -> { a = [ 3]; }
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setAttrMerge = name : default : attrs : f :
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# setAttrMerge "a" [] { a = [2];} (x: x ++ [3]) -> { a = [2 3]; }
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# setAttrMerge "a" [] { } (x: x ++ [3]) -> { a = [ 3]; }
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setAttrMerge = name: default: attrs: f:
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setAttr attrs name (f (maybeAttr name default attrs));
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# Using f = a : b = b the result is similar to //
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# Using f = a: b = b the result is similar to //
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# merge attributes with custom function handling the case that the attribute
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# exists in both sets
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mergeAttrsWithFunc = f : set1 : set2 :
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fold (n: set : if set ? ${n}
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mergeAttrsWithFunc = f: set1: set2:
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fold (n: set: if set ? ${n}
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then setAttr set n (f set.${n} set2.${n})
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else set )
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(set2 // set1) (attrNames set2);
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# merging two attribute set concatenating the values of same attribute names
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# eg { a = 7; } { a = [ 2 3 ]; } becomes { a = [ 7 2 3 ]; }
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mergeAttrsConcatenateValues = mergeAttrsWithFunc ( a : b : (toList a) ++ (toList b) );
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mergeAttrsConcatenateValues = mergeAttrsWithFunc ( a: b: (toList a) ++ (toList b) );
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# merges attributes using //, if a name exisits in both attributes
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# an error will be triggered unless its listed in mergeLists
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@ -262,10 +262,10 @@ rec {
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# ! deprecated, use mergeAttrByFunc instead
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mergeAttrsNoOverride = { mergeLists ? ["buildInputs" "propagatedBuildInputs"],
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overrideSnd ? [ "buildPhase" ]
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} : attrs1 : attrs2 :
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fold (n: set :
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}: attrs1: attrs2:
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fold (n: set:
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setAttr set n ( if set ? ${n}
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then # merge
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then # merge
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if elem n mergeLists # attribute contains list, merge them by concatenating
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then attrs2.${n} ++ attrs1.${n}
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else if elem n overrideSnd
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@ -286,14 +286,14 @@ rec {
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# { mergeAttrsBy = [...]; buildInputs = [ a b c d ]; }
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# is used by prepareDerivationArgs, defaultOverridableDelayableArgs and can be used when composing using
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# foldArgs, composedArgsAndFun or applyAndFun. Example: composableDerivation in all-packages.nix
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mergeAttrByFunc = x : y :
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mergeAttrByFunc = x: y:
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let
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mergeAttrBy2 = { mergeAttrBy=lib.mergeAttrs; }
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mergeAttrBy2 = { mergeAttrBy = lib.mergeAttrs; }
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// (maybeAttr "mergeAttrBy" {} x)
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// (maybeAttr "mergeAttrBy" {} y); in
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fold lib.mergeAttrs {} [
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x y
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(mapAttrs ( a : v : # merge special names using given functions
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(mapAttrs ( a: v: # merge special names using given functions
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if x ? ${a}
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then if y ? ${a}
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then v x.${a} y.${a} # both have attr, use merge func
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@ -313,9 +313,9 @@ rec {
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#
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# This function is best explained by an example:
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#
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# {version ? "2.x"} :
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# {version ? "2.x"}:
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#
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# mkDerivation (mergeAttrsByVersion "package-name" version
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# mkDerivation (mergeAttrsByVersion "package-name" version
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# { # version specific settings
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# "git" = { src = ..; preConfigre = "autogen.sh"; buildInputs = [automake autoconf libtool]; };
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# "2.x" = { src = ..; };
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@ -346,21 +346,24 @@ rec {
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# See misc.nix -> versionedDerivation
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# discussion: nixpkgs: pull/310
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mergeAttrsByVersion = name: version: attrsByVersion: base:
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mergeAttrsByFuncDefaultsClean [ { name = "${name}-${version}"; } base (maybeAttr version (throw "bad version ${version} for ${name}") attrsByVersion)];
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mergeAttrsByFuncDefaultsClean [ { name = "${name}-${version}"; }
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base
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(maybeAttr version (throw "bad version ${version} for ${name}") attrsByVersion)
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];
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# sane defaults (same name as attr name so that inherit can be used)
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mergeAttrBy = # { buildInputs = concatList; [...]; passthru = mergeAttr; [..]; }
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listToAttrs (map (n : nameValuePair n lib.concat)
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listToAttrs (map (n: nameValuePair n lib.concat)
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[ "nativeBuildInputs" "buildInputs" "propagatedBuildInputs" "configureFlags" "prePhases" "postAll" "patches" ])
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// listToAttrs (map (n : nameValuePair n lib.mergeAttrs) [ "passthru" "meta" "cfg" "flags" ])
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// listToAttrs (map (n : nameValuePair n (a: b: "${a}\n${b}") ) [ "preConfigure" "postInstall" ])
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// listToAttrs (map (n: nameValuePair n lib.mergeAttrs) [ "passthru" "meta" "cfg" "flags" ])
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// listToAttrs (map (n: nameValuePair n (a: b: "${a}\n${b}") ) [ "preConfigure" "postInstall" ])
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;
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# prepareDerivationArgs tries to make writing configurable derivations easier
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# example:
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# prepareDerivationArgs {
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# mergeAttrBy = {
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# myScript = x : y : x ++ "\n" ++ y;
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# myScript = x: y: x ++ "\n" ++ y;
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# };
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# cfg = {
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# readlineSupport = true;
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@ -392,10 +395,10 @@ rec {
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# TODO use args.mergeFun here as well?
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prepareDerivationArgs = args:
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let args2 = { cfg = {}; flags = {}; } // args;
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flagName = name : "${name}Support";
|
||||
cfgWithDefaults = (listToAttrs (map (n : nameValuePair (flagName n) false) (attrNames args2.flags)))
|
||||
flagName = name: "${name}Support";
|
||||
cfgWithDefaults = (listToAttrs (map (n: nameValuePair (flagName n) false) (attrNames args2.flags)))
|
||||
// args2.cfg;
|
||||
opts = attrValues (mapAttrs (a : v :
|
||||
opts = attrValues (mapAttrs (a: v:
|
||||
let v2 = if v ? set || v ? unset then v else { set = v; };
|
||||
n = if cfgWithDefaults.${flagName a} then "set" else "unset";
|
||||
attr = maybeAttr n {} v2; in
|
||||
|
||||
@ -114,7 +114,7 @@ rec {
|
||||
/* Massage a module into canonical form, that is, a set consisting
|
||||
of ‘options’, ‘config’ and ‘imports’ attributes. */
|
||||
unifyModuleSyntax = file: key: m:
|
||||
let metaSet = if m ? meta
|
||||
let metaSet = if m ? meta
|
||||
then { meta = m.meta; }
|
||||
else {};
|
||||
in
|
||||
@ -595,7 +595,7 @@ rec {
|
||||
functionality
|
||||
|
||||
This show a warning if any a.b.c or d.e.f is set, and set the value of
|
||||
x.y.z to the result of the merge function
|
||||
x.y.z to the result of the merge function
|
||||
*/
|
||||
mkMergedOptionModule = from: to: mergeFn:
|
||||
{ config, options, ... }:
|
||||
@ -611,12 +611,12 @@ rec {
|
||||
let val = getAttrFromPath f config;
|
||||
opt = getAttrFromPath f options;
|
||||
in
|
||||
optionalString
|
||||
optionalString
|
||||
(val != "_mkMergedOptionModule")
|
||||
"The option `${showOption f}' defined in ${showFiles opt.files} has been changed to `${showOption to}' that has a different type. Please read `${showOption to}' documentation and update your configuration accordingly."
|
||||
) from);
|
||||
} // setAttrByPath to (mkMerge
|
||||
(optional
|
||||
(optional
|
||||
(any (f: (getAttrFromPath f config) != "_mkMergedOptionModule") from)
|
||||
(mergeFn config)));
|
||||
};
|
||||
|
||||
@ -80,7 +80,7 @@ runTests {
|
||||
y = x.merge {};
|
||||
in (y.merge) { a = 10; };
|
||||
|
||||
resRem7 = res6.replace (a : removeAttrs a ["a"]);
|
||||
resRem7 = res6.replace (a: removeAttrs a ["a"]);
|
||||
|
||||
resReplace6 = let x = defaultOverridableDelayableArgs id { a = 7; mergeAttrBy = { a = add; }; };
|
||||
x2 = x.merge { a = 20; }; # now we have 27
|
||||
@ -88,10 +88,10 @@ runTests {
|
||||
|
||||
# fixed tests (delayed args): (when using them add some comments, please)
|
||||
resFixed1 =
|
||||
let x = defaultOverridableDelayableArgs id ( x : { a = 7; c = x.fixed.b; });
|
||||
y = x.merge (x : { name = "name-${builtins.toString x.fixed.c}"; });
|
||||
let x = defaultOverridableDelayableArgs id ( x: { a = 7; c = x.fixed.b; });
|
||||
y = x.merge (x: { name = "name-${builtins.toString x.fixed.c}"; });
|
||||
in (y.merge) { b = 10; };
|
||||
strip = attrs : removeAttrs attrs ["merge" "replace"];
|
||||
strip = attrs: removeAttrs attrs ["merge" "replace"];
|
||||
in all id
|
||||
[ ((strip res1) == { })
|
||||
((strip res2) == { a = 7; })
|
||||
|
||||
@ -81,7 +81,7 @@ rec {
|
||||
# name: name of the type
|
||||
# type: type function.
|
||||
# wrapped: the type wrapped in case of compound types.
|
||||
# payload: values of the type, two payloads of the same type must be
|
||||
# payload: values of the type, two payloads of the same type must be
|
||||
# combinable with the binOp binary operation.
|
||||
# binOp: binary operation that merge two payloads of the same type.
|
||||
functor ? defaultFunctor name
|
||||
|
||||
Loading…
Reference in New Issue
Block a user