libfetchers/git: Move workdir accessor into GitRepo::getAccessor

src/libfetchers/git-utils.cc

@@ -1,4 +1,5 @@
 #include "git-utils.hh"
+#include "fs-input-accessor.hh"
 #include "input-accessor.hh"
 #include "filtering-input-accessor.hh"
 #include "cache.hh"
@@ -352,6 +353,8 @@ struct GitRepoImpl : GitRepo, std::enable_shared_from_this<GitRepoImpl>
 
     ref<InputAccessor> getAccessor(const Hash & rev, bool exportIgnore) override;
 
+    ref<InputAccessor> getAccessor(const WorkdirInfo & wd, bool exportIgnore, MakeNotAllowedError e) override;
+
     static int sidebandProgressCallback(const char * str, int len, void * payload)
     {
         auto act = (Activity *) payload;
@@ -715,6 +718,22 @@ ref<InputAccessor> GitRepoImpl::getAccessor(const Hash & rev, bool exportIgnore)
     }
 }
 
+ref<InputAccessor> GitRepoImpl::getAccessor(const WorkdirInfo & wd, bool exportIgnore, MakeNotAllowedError makeNotAllowedError)
+{
+    auto self = ref<GitRepoImpl>(shared_from_this());
+    ref<InputAccessor> fileAccessor =
+        AllowListInputAccessor::create(
+                makeFSInputAccessor(path),
+                std::set<CanonPath> { wd.files },
+                std::move(makeNotAllowedError));
+    if (exportIgnore) {
+        return make_ref<GitExportIgnoreInputAccessor>(self, fileAccessor);
+    }
+    else {
+        return fileAccessor;
+    }
+}
+
 std::vector<std::tuple<GitRepoImpl::Submodule, Hash>> GitRepoImpl::getSubmodules(const Hash & rev, bool exportIgnore)
 {
     /* Read the .gitmodules files from this revision. */

src/libfetchers/git-utils.hh

@@ -1,5 +1,6 @@
 #pragma once
 
+#include "filtering-input-accessor.hh"
 #include "input-accessor.hh"
 
 namespace nix {
@@ -73,6 +74,8 @@ struct GitRepo
 
     virtual ref<InputAccessor> getAccessor(const Hash & rev, bool exportIgnore) = 0;
 
+    virtual ref<InputAccessor> getAccessor(const WorkdirInfo & wd, bool exportIgnore, MakeNotAllowedError makeNotAllowedError) = 0;
+
     virtual void fetch(
         const std::string & url,
         const std::string & refspec,

src/libfetchers/git.cc

@@ -9,7 +9,6 @@
 #include "processes.hh"
 #include "git.hh"
 #include "fs-input-accessor.hh"
-#include "filtering-input-accessor.hh"
 #include "mounted-input-accessor.hh"
 #include "git-utils.hh"
 #include "logging.hh"
@@ -659,10 +658,11 @@ struct GitInputScheme : InputScheme
             for (auto & submodule : repoInfo.workdirInfo.submodules)
                 repoInfo.workdirInfo.files.insert(submodule.path);
 
+        auto repo = GitRepo::openRepo(CanonPath(repoInfo.url), false, false);
+
         ref<InputAccessor> accessor =
-            AllowListInputAccessor::create(
-                makeFSInputAccessor(CanonPath(repoInfo.url)),
-                std::move(repoInfo.workdirInfo.files),
+            repo->getAccessor(repoInfo.workdirInfo,
+                getExportIgnoreAttr(input),
                 makeNotAllowedError(repoInfo.url));
 
         /* If the repo has submodules, return a mounted input accessor