Ensure all headers have #pragma once and are in API docs

`///@file` makes them show up in the internal API dos. A tiny few were
missing `#pragma once`.

src/libcmd/command-installable-value.hh

@@ -1,3 +1,6 @@
+#pragma once
+///@file
+
 #include "installable-value.hh"
 #include "command.hh"
 

src/libcmd/command.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "installable-value.hh"
 #include "args.hh"

src/libcmd/common-eval-args.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "args.hh"
 

src/libcmd/editor-for.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 

src/libcmd/installable-attr-path.hh

@@ -1,3 +1,6 @@
+#pragma once
+///@file
+
 #include "globals.hh"
 #include "installable-value.hh"
 #include "outputs-spec.hh"

src/libcmd/installable-derived-path.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "installables.hh"
 

src/libcmd/installable-flake.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "installable-value.hh"
 

src/libcmd/installable-value.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "installables.hh"
 #include "flake/flake.hh"

src/libcmd/installables.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "util.hh"
 #include "path.hh"

src/libcmd/legacy.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include <functional>
 #include <map>

src/libcmd/markdown.hh

@@ -1,3 +1,6 @@
+#pragma once
+///@file
+
 #include "types.hh"
 
 namespace nix {

src/libcmd/repl.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "eval.hh"
 

src/libexpr/attr-path.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "eval.hh"
 

src/libexpr/attr-set.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "nixexpr.hh"
 #include "symbol-table.hh"

src/libexpr/eval-cache.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "sync.hh"
 #include "hash.hh"

src/libexpr/eval-inline.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "eval.hh"
 

src/libexpr/eval.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "attr-set.hh"
 #include "types.hh"

src/libexpr/flake/flake.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "flakeref.hh"

src/libexpr/flake/flakeref.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "hash.hh"

src/libexpr/flake/lockfile.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "flakeref.hh"
 

src/libexpr/function-trace.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "eval.hh"
 

src/libexpr/get-drvs.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "eval.hh"
 #include "path.hh"

src/libexpr/json-to-value.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "eval.hh"
 

src/libexpr/nixexpr.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include <map>
 #include <vector>

src/libexpr/primops.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "eval.hh"
 

src/libexpr/symbol-table.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include <list>
 #include <map>

src/libexpr/tests/libexpr.hh

@@ -1,3 +1,6 @@
+#pragma once
+///@file
+
 #include <gtest/gtest.h>
 #include <gmock/gmock.h>
 

src/libexpr/tests/value/context.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include <rapidcheck/gen/Arbitrary.h>
 

src/libexpr/value-to-json.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "nixexpr.hh"
 #include "eval.hh"

src/libexpr/value-to-xml.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "nixexpr.hh"
 #include "eval.hh"

src/libexpr/value.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include <cassert>
 

src/libexpr/value/context.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "util.hh"
 #include "comparator.hh"

src/libfetchers/attrs.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 

src/libfetchers/cache.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "fetchers.hh"
 

src/libfetchers/fetch-settings.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "config.hh"

src/libfetchers/fetchers.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "hash.hh"

src/libfetchers/registry.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "fetchers.hh"

src/libmain/common-args.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "args.hh"
 

src/libmain/loggers.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 

src/libmain/progress-bar.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "logging.hh"
 

src/libmain/shared.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "util.hh"
 #include "args.hh"

src/libstore/binary-cache-store.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "crypto.hh"
 #include "store-api.hh"

src/libstore/build-result.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "realisation.hh"
 #include "derived-path.hh"

src/libstore/build/derivation-goal.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "parsed-derivations.hh"
 #include "lock.hh"

src/libstore/build/drv-output-substitution-goal.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "store-api.hh"
 #include "goal.hh"

src/libstore/build/goal.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "store-api.hh"

src/libstore/build/hook-instance.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "logging.hh"
 #include "serialise.hh"

src/libstore/build/local-derivation-goal.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "derivation-goal.hh"
 #include "local-store.hh"

src/libstore/build/personality.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include <string>
 

src/libstore/build/substitution-goal.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "lock.hh"
 #include "store-api.hh"

src/libstore/build/worker.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "lock.hh"

src/libstore/builtins.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "derivations.hh"
 

src/libstore/builtins/buildenv.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "derivations.hh"
 #include "store-api.hh"

src/libstore/content-address.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include <variant>
 #include "hash.hh"

src/libstore/crypto.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 

src/libstore/daemon.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "serialise.hh"
 #include "store-api.hh"

src/libstore/derivations.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "path.hh"
 #include "types.hh"

src/libstore/derived-path.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "util.hh"
 #include "path.hh"

src/libstore/filetransfer.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "hash.hh"

src/libstore/fs-accessor.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 

src/libstore/gc-store.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "store-api.hh"
 

src/libstore/globals.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 #include "config.hh"

src/libstore/local-fs-store.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "store-api.hh"
 #include "gc-store.hh"

src/libstore/local-store.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "sqlite.hh"
 

src/libstore/lock.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "types.hh"
 

src/libstore/log-store.hh

@@ -1,4 +1,5 @@
 #pragma once
+///@file
 
 #include "store-api.hh"