···

       
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126
       
 
       
  # * https://nixos.org/nix/manual/#ssec-derivation

     

       
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  #   Explanation about derivations in general

     

       
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  mkDerivation =

     

       
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-
       
    { buildInputs ? []

     

       
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130
       
-
       
    , nativeBuildInputs ? []

     

       
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-
       
    , propagatedBuildInputs ? []

     

       
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129
       
+
       
    { nativeBuildInputs ? []

     

       
130
       
130
       
+
       
    , buildInputs ? []

     

       
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131
       
+
       


     

       
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132
       
 
       
    , propagatedNativeBuildInputs ? []

     

       
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133
       
+
       
    , propagatedBuildInputs ? []

     

       
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134
       
+
       


     

       
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135
       
 
       
    , crossConfig ? null

     

       
134
       
136
       
 
       
    , meta ? {}

     

       
135
       
137
       
 
       
    , passthru ? {}

     
···

       
141
       
143
       
 
       
    , sandboxProfile ? ""

     

       
142
       
144
       
 
       
    , propagatedSandboxProfile ? ""

     

       
143
       
145
       
 
       
    , ... } @ attrs:

     

       
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144
       
-
       
    let # Rename argumemnts to avoid cycles

     

       
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145
       
-
       
      buildInputs__ = buildInputs;

     

       
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146
       
-
       
      nativeBuildInputs__ = nativeBuildInputs;

     

       
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147
       
-
       
      propagatedBuildInputs__ = propagatedBuildInputs;

     

       
148
       
148
       
-
       
      propagatedNativeBuildInputs__ = propagatedNativeBuildInputs;

     

       
149
       
149
       
-
       
    in let

     

       
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150
       
-
       
      getNativeDrv = drv: drv.nativeDrv or drv;

     

       
151
       
151
       
-
       
      getCrossDrv = drv: drv.crossDrv or drv;

     

       
152
       
152
       
-
       
      nativeBuildInputs = map getNativeDrv nativeBuildInputs__;

     

       
153
       
153
       
-
       
      buildInputs = map getCrossDrv buildInputs__;

     

       
154
       
154
       
-
       
      propagatedBuildInputs = map getCrossDrv propagatedBuildInputs__;

     

       
155
       
155
       
-
       
      propagatedNativeBuildInputs = map getNativeDrv propagatedNativeBuildInputs__;

     

       
146
       
146
       
+
       
    let

     

       
147
       
147
       
+
       
      dependencies = [

     

       
148
       
148
       
+
       
        (map (drv: drv.nativeDrv or drv) nativeBuildInputs)

     

       
149
       
149
       
+
       
        (map (drv: drv.crossDrv or drv) buildInputs)

     

       
150
       
150
       
+
       
      ];

     

       
151
       
151
       
+
       
      propagatedDependencies = [

     

       
152
       
152
       
+
       
        (map (drv: drv.nativeDrv or drv) propagatedNativeBuildInputs)

     

       
153
       
153
       
+
       
        (map (drv: drv.crossDrv or drv) propagatedBuildInputs)

     

       
154
       
154
       
+
       
      ];

     

       
156
       
155
       
 
       
    in let

     

       
157
       
156
       
 
       
      pos' =

     

       
158
       
157
       
 
       
        if pos != null then

     
···

       
281
       
280
       
 
       
        outputs ++

     

       
282
       
281
       
 
       
        (if separateDebugInfo then assert targetPlatform.isLinux; [ "debug" ] else []);

     

       
283
       
282
       
 
       


     

       
284
       
284
       
-
       
      buildInputs' = lib.chooseDevOutputs buildInputs ++

     

       
285
       
285
       
-
       
        (if separateDebugInfo then [ ../../build-support/setup-hooks/separate-debug-info.sh ] else []);

     

       
286
       
286
       
-
       


     

       
287
       
287
       
-
       
      nativeBuildInputs' = lib.chooseDevOutputs nativeBuildInputs;

     

       
288
       
288
       
-
       
      propagatedBuildInputs' = lib.chooseDevOutputs propagatedBuildInputs;

     

       
289
       
289
       
-
       
      propagatedNativeBuildInputs' = lib.chooseDevOutputs propagatedNativeBuildInputs;

     

       
283
       
283
       
+
       
      dependencies' = let

     

       
284
       
284
       
+
       
          justMap = map lib.chooseDevOutputs dependencies;

     

       
285
       
285
       
+
       
          nativeBuildInputs = lib.elemAt justMap 0

     

       
286
       
286
       
+
       
            ++ lib.optional targetPlatform.isWindows ../../build-support/setup-hooks/win-dll-link.sh;

     

       
287
       
287
       
+
       
          buildInputs = lib.elemAt justMap 1

     

       
288
       
288
       
+
       
               # TODO(@Ericson2314): Should instead also be appended to `nativeBuildInputs`.

     

       
289
       
289
       
+
       
            ++ lib.optional separateDebugInfo ../../build-support/setup-hooks/separate-debug-info.sh;

     

       
290
       
290
       
+
       
        in [ nativeBuildInputs buildInputs ];

     

       
290
       
291
       
 
       


     

       
292
       
292
       
+
       
      propagatedDependencies' = map lib.chooseDevOutputs propagatedDependencies;

     

       
291
       
293
       
 
       
    in

     

       
292
       
294
       
 
       


     

       
293
       
295
       
 
       
      # Throw an error if trying to evaluate an non-valid derivation

     
···

       
302
       
304
       
 
       
           "__impureHostDeps" "__propagatedImpureHostDeps"

     

       
303
       
305
       
 
       
           "sandboxProfile" "propagatedSandboxProfile"])

     

       
304
       
306
       
 
       
        // (let

     

       
307
       
307
       
+
       
          # TODO(@Ericson2314): Reversing of dep lists is just temporary to avoid Darwin mass rebuild.

     

       
305
       
308
       
 
       
          computedSandboxProfile =

     

       
306
       
306
       
-
       
            lib.concatMap (input: input.__propagatedSandboxProfile or []) (extraBuildInputs ++ buildInputs' ++ nativeBuildInputs');

     

       
309
       
309
       
+
       
            lib.concatMap (input: input.__propagatedSandboxProfile or []) (extraBuildInputs ++ lib.concatLists (lib.reverseList dependencies'));

     

       
307
       
310
       
 
       
          computedPropagatedSandboxProfile =

     

       
308
       
308
       
-
       
            lib.concatMap (input: input.__propagatedSandboxProfile or []) (propagatedBuildInputs' ++ propagatedNativeBuildInputs');

     

       
311
       
311
       
+
       
            lib.concatMap (input: input.__propagatedSandboxProfile or []) (lib.concatLists (lib.reverseList propagatedDependencies'));

     

       
309
       
312
       
 
       
          computedImpureHostDeps =

     

       
310
       
310
       
-
       
            lib.unique (lib.concatMap (input: input.__propagatedImpureHostDeps or []) (extraBuildInputs ++ buildInputs' ++ nativeBuildInputs'));

     

       
313
       
313
       
+
       
            lib.unique (lib.concatMap (input: input.__propagatedImpureHostDeps or []) (extraBuildInputs ++ lib.concatLists (lib.reverseList dependencies')));

     

       
311
       
314
       
 
       
          computedPropagatedImpureHostDeps =

     

       
312
       
312
       
-
       
            lib.unique (lib.concatMap (input: input.__propagatedImpureHostDeps or []) (propagatedBuildInputs' ++ propagatedNativeBuildInputs'));

     

       
315
       
315
       
+
       
            lib.unique (lib.concatMap (input: input.__propagatedImpureHostDeps or []) (lib.concatLists (lib.reverseList propagatedDependencies')));

     

       
313
       
316
       
 
       
        in

     

       
314
       
317
       
 
       
        {

     

       
315
       
318
       
 
       
          builder = attrs.realBuilder or shell;

     
···

       
319
       
322
       
 
       
          userHook = config.stdenv.userHook or null;

     

       
320
       
323
       
 
       
          __ignoreNulls = true;

     

       
321
       
324
       
 
       


     

       
322
       
322
       
-
       
          # Inputs built by the cross compiler.

     

       
323
       
323
       
-
       
          buildInputs = buildInputs';

     

       
324
       
324
       
-
       
          propagatedBuildInputs = propagatedBuildInputs';

     

       
325
       
325
       
-
       
          # Inputs built by the usual native compiler.

     

       
326
       
326
       
-
       
          nativeBuildInputs = nativeBuildInputs'

     

       
327
       
327
       
-
       
            ++ lib.optional

     

       
328
       
328
       
-
       
                (hostPlatform.isCygwin

     

       
329
       
329
       
-
       
                  || (crossConfig != null && lib.hasSuffix "mingw32" crossConfig))

     

       
330
       
330
       
-
       
                ../../build-support/setup-hooks/win-dll-link.sh

     

       
331
       
331
       
-
       
            ;

     

       
332
       
332
       
-
       
          propagatedNativeBuildInputs = propagatedNativeBuildInputs';

     

       
325
       
325
       
+
       
          nativeBuildInputs = lib.elemAt dependencies' 0;

     

       
326
       
326
       
+
       
          buildInputs = lib.elemAt dependencies' 1;

     

       
327
       
327
       
+
       


     

       
328
       
328
       
+
       
          propagatedNativeBuildInputs = lib.elemAt propagatedDependencies' 0;

     

       
329
       
329
       
+
       
          propagatedBuildInputs = lib.elemAt propagatedDependencies' 1;

     

       
333
       
330
       
 
       
        } // ifDarwin {

     

       
334
       
331
       
 
       
          # TODO: remove lib.unique once nix has a list canonicalization primitive

     

       
335
       
332
       
 
       
          __sandboxProfile =