Merge pull request #9334 from fricklerhandwerk/backport-2.18-fix-anchors

backport fix for the `--help` output to 2.18

doc/manual/generate-manpage.nix

@@ -5,7 +5,7 @@ let
   inherit (import ./utils.nix) concatStrings optionalString filterAttrs trim squash unique showSettings;
 in
 
-commandDump:
+inlineHTML: commandDump:
 
 let
 
@@ -30,7 +30,7 @@ let
 
         ${maybeSubcommands}
 
-        ${maybeDocumentation}
+        ${maybeStoreDocs}
 
         ${maybeOptions}
       '';
@@ -70,7 +70,7 @@ let
         * [`${command} ${name}`](./${appendName filename name}.md) - ${subcmd.description}
       '';
 
-      maybeDocumentation = optionalString
+      maybeStoreDocs = optionalString
         (details ? doc)
         (replaceStrings ["@stores@"] [storeDocs] details.doc);
 
@@ -91,17 +91,20 @@ let
           listOptions = opts: concatStringsSep "\n" (attrValues (mapAttrs showOption opts));
           showOption = name: option:
             let
+              result = trim ''
+                - ${item}
+                  ${option.description}
+              '';
+              item = if inlineHTML
+                then ''<span id="opt-${name}">[`--${name}`](#opt-${name})</span> ${shortName} ${labels}''
+                else "`--${name}` ${shortName} ${labels}";
               shortName = optionalString
                 (option ? shortName)
                 ("/ `-${option.shortName}`");
               labels = optionalString
                 (option ? labels)
                 (concatStringsSep " " (map (s: "*${s}*") option.labels));
-            in trim ''
-              - <span id="opt-${name}">[`--${name}`](#opt-${name})</span> ${shortName} ${labels}
-
-                ${option.description}
-            '';
+            in result;
           categories = sort lessThan (unique (map (cmd: cmd.category) (attrValues allOptions)));
         in concatStrings (map showCategory categories);
     in squash result;
@@ -162,7 +165,7 @@ let
 
           **Settings**:
 
-          ${showSettings { useAnchors = false; } settings}
+          ${showSettings { inherit inlineHTML; } settings}
         '';
     in concatStrings (attrValues (mapAttrs showStore commandInfo.stores));
 

doc/manual/local.mk

@@ -98,12 +98,12 @@ $(d)/src/SUMMARY.md: $(d)/src/SUMMARY.md.in $(d)/src/command-ref/new-cli $(d)/sr
 
 $(d)/src/command-ref/new-cli: $(d)/nix.json $(d)/utils.nix $(d)/generate-manpage.nix $(bindir)/nix
 	@rm -rf $@ $@.tmp
-	$(trace-gen) $(nix-eval) --write-to $@.tmp --expr 'import doc/manual/generate-manpage.nix (builtins.readFile $<)'
+	$(trace-gen) $(nix-eval) --write-to $@.tmp --expr 'import doc/manual/generate-manpage.nix true (builtins.readFile $<)'
 	@mv $@.tmp $@
 
 $(d)/src/command-ref/conf-file.md: $(d)/conf-file.json $(d)/utils.nix $(d)/src/command-ref/conf-file-prefix.md $(d)/src/command-ref/experimental-features-shortlist.md $(bindir)/nix
 	@cat doc/manual/src/command-ref/conf-file-prefix.md > $@.tmp
-	$(trace-gen) $(nix-eval) --expr '(import doc/manual/utils.nix).showSettings { useAnchors = true; } (builtins.fromJSON (builtins.readFile $<))' >> $@.tmp;
+	$(trace-gen) $(nix-eval) --expr '(import doc/manual/utils.nix).showSettings { inlineHTML = true; } (builtins.fromJSON (builtins.readFile $<))' >> $@.tmp;
 	@mv $@.tmp $@
 
 $(d)/nix.json: $(bindir)/nix

doc/manual/utils.nix

@@ -44,10 +44,10 @@ rec {
 
   optionalString = cond: string: if cond then string else "";
 
-  showSetting = { useAnchors }: name: { description, documentDefault, defaultValue, aliases, value, experimentalFeature }:
+  showSetting = { inlineHTML }: name: { description, documentDefault, defaultValue, aliases, value, experimentalFeature }:
     let
       result = squash ''
-          - ${if useAnchors
+          - ${if inlineHTML
               then ''<span id="conf-${name}">[`${name}`](#conf-${name})</span>''
               else ''`${name}`''}
 

src/nix/main.cc

@@ -218,7 +218,8 @@ static void showHelp(std::vector<std::string> subcommand, NixArgs & toplevel)
     vDump->mkString(toplevel.dumpCli());
 
     auto vRes = state.allocValue();
-    state.callFunction(*vGenerateManpage, *vDump, *vRes, noPos);
+    state.callFunction(*vGenerateManpage, state.getBuiltin("false"), *vRes, noPos);
+    state.callFunction(*vRes, *vDump, *vRes, noPos);
 
     auto attr = vRes->attrs->get(state.symbols.create(mdName + ".md"));
     if (!attr)