just-mr: Add git binary option

In the rare cases that we need to shell out to git, let the user
configure what binary to use. Option resolves in the same way as
the just executable, including allowing it to be set via just-mrrc.

Updates all cases of shelling out to git (fetch and commit update).

Update just-mr and just-mrrc docs accordingly.

1 files changed, 7 insertions, 5 deletions

diff --git a/src/other_tools/ops_maps/git_update_map.cpp b/src/other_tools/ops_maps/git_update_map.cpp
index d399ff40..cc40aef6 100644
--- a/src/other_tools/ops_maps/git_update_map.cpp
+++ b/src/other_tools/ops_maps/git_update_map.cpp
@@ -22,13 +22,14 @@
 #include "src/utils/cpp/tmp_dir.hpp"
 
 auto CreateGitUpdateMap(GitCASPtr const& git_cas,
+                        std::string const& git_bin,
                         std::vector<std::string> const& launcher,
                         std::size_t jobs) -> GitUpdateMap {
-    auto update_commits = [git_cas, launcher](auto /* unused */,
-                                              auto setter,
-                                              auto logger,
-                                              auto /* unused */,
-                                              auto const& key) {
+    auto update_commits = [git_cas, git_bin, launcher](auto /* unused */,
+                                                       auto setter,
+                                                       auto logger,
+                                                       auto /* unused */,
+                                                       auto const& key) {
         // perform git update commit
         auto git_repo = GitRepoRemote::Open(git_cas);  // wrap the tmp odb
         if (not git_repo) {
@@ -59,6 +60,7 @@ auto CreateGitUpdateMap(GitCASPtr const& git_cas,
         auto new_commit = git_repo->UpdateCommitViaTmpRepo(tmp_dir->GetPath(),
                                                            key.first,
                                                            key.second,
+                                                           git_bin,
                                                            launcher,
                                                            wrapped_logger);
         JustMRProgress::Instance().TaskTracker().Stop(id);