{ fetchgit }: let commit = "cad869fbd95637902673f744581b29e0f3e3f61a"; project-name = "DeleteBatch"; tracking-branch = "REL1_41"; in (fetchgit { name = "mediawiki-delete-batch-source"; url = "https://gerrit.wikimedia.org/r/mediawiki/extensions/${project-name}"; rev = "refs/heads/${tracking-branch}"; hash = "sha256-M1ek1WdO1/uTjeYlrk3Tz+nlb/fFZH+O0Ok7b10iKak="; }).overrideAttrs (_: { passthru = { inherit project-name tracking-branch; }; })