Advanced Git Fetch Options for Submodules and Parallelism

are fetched. When set to 'yes', all populated submodules are fetched and submodules that are both unpopulated and changed are fetched. When set to 'no', submodules are never fetched. + When unspecified, this uses the value of `fetch.recurseSubmodules` if it is set (see linkgit:git-config[1]), defaulting to 'on-demand' if unset. When this option is used without any value, it defaults to 'yes'. endif::git-pull[] -j:: --jobs=<n>:: Number of parallel children to be used for all forms of fetching. + If the `--multiple` option was specified, the different remotes will be fetched in parallel. If multiple submodules are fetched, they will be fetched in parallel. To control them independently, use the config settings `fetch.parallel` and `submodule.fetchJobs` (see linkgit:git-config[1]). + Typically, parallel recursive and multi-remote fetches will be faster. By default fetches are performed sequentially, not in parallel. ifndef::git-pull[] --no-recurse-submodules:: Disable recursive fetching of submodules (this has the same effect as using the `--recurse-submodules=no` option). endif::git-pull[] --set-upstream:: If the remote is fetched successfully, add upstream (tracking) reference, used by argument-less linkgit:git-pull[1] and other commands. For more information, see `branch.<name>.merge` and `branch.<name>.remote` in linkgit:git-config[1]. ifndef::git-pull[] --submodule-prefix=<path>:: Prepend <path> to paths printed in informative messages such as "Fetching submodule foo". This option is used internally when recursing over submodules. --recurse-submodules-default=[yes|on-demand]:: This option is used internally to temporarily provide a non-negative default value for the --recurse-submodules option. All other methods of configuring fetch's submodule recursion (such as settings in linkgit:gitmodules[5] and linkgit:git-config[1]) override this option, as does specifying --[no-]recurse-submodules directly. -u:: --update-head-ok:: By default 'git fetch' refuses to update the head which corresponds to the current branch. This flag disables the check. This is purely for the internal use

The git fetch command has additional options to control submodule fetching, parallelism, and upstream tracking, including settings to disable recursive submodule fetching, specify the number of parallel jobs, and update the head of the current branch, as well as options for internal use and debugging.