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config/git_modes.json 211 lines · 4.5 KB · json
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{
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  "version": "2026-06-09.1",
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  "modes": {
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    "git_stock": {
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      "setup": [],
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      "applies_to": [
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        "all"
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      ],
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      "compares_to_oak_modes": [
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        "oak_default",
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        "oak_virtual_branch"
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      ],
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      "fairness_note": "Baseline installed Git with no optional working-tree accelerators."
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    },
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    "git_untracked_cache": {
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      "setup": [
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        [
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          "git",
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          "update-index",
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          "--untracked-cache"
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        ]
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      ],
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      "applies_to": [
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        "large-tree",
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        "huge-tree",
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        "ignored-heavy",
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        "wide-dirty-tree"
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      ],
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      "compares_to_oak_modes": [
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        "oak_default"
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      ],
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      "fairness_note": "Valid when status cost is dominated by untracked-file discovery."
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    },
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    "git_split_index": {
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      "setup": [
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        [
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          "git",
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          "update-index",
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          "--split-index"
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        ]
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      ],
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      "applies_to": [
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        "large-tree",
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        "huge-tree",
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        "wide-dirty-tree"
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      ],
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      "compares_to_oak_modes": [
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        "oak_default"
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      ],
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      "fairness_note": "Optimizes index writes; should be reported separately from stock Git."
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    },
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    "git_fsmonitor": {
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      "setup": [
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        [
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          "git",
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          "config",
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          "core.fsmonitor",
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          "true"
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        ]
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      ],
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      "applies_to": [
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        "large-tree",
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        "huge-tree",
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        "wide-dirty-tree"
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      ],
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      "compares_to_oak_modes": [
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        "oak_default"
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      ],
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      "fairness_note": "Requires platform support. Mark unsupported when no fsmonitor daemon or hook is active."
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    },
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    "git_sparse_checkout": {
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      "setup": [
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        [
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          "git",
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          "sparse-checkout",
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          "init",
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          "--cone"
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        ],
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        [
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          "git",
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          "sparse-checkout",
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          "set",
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          "<fixture sparse paths>"
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        ]
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      ],
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      "applies_to": [
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        "sparse-task",
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        "large-tree",
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        "huge-tree"
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      ],
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      "compares_to_oak_modes": [
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        "oak_space_mount",
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        "oak_mount_per_task"
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      ],
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      "fairness_note": "Only valid for scenarios with explicit sparse-visible path sets."
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    },
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    "git_worktree": {
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      "setup": [
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        [
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          "git",
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          "worktree",
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          "add",
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          "<task path>",
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          "-b",
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          "<task branch>"
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        ]
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      ],
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      "applies_to": [
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        "parallel-agent",
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        "branch-per-task"
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      ],
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      "compares_to_oak_modes": [
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        "oak_space_mount",
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        "oak_virtual_branch"
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      ],
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      "fairness_note": "Measures isolation strategy, not single-checkout branch switching."
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    },
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    "git_lfs": {
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      "setup": [
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        [
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          "git",
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          "lfs",
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          "install",
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          "--local"
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        ],
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        [
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          "git",
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          "lfs",
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          "track",
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          "*.bin"
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        ]
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      ],
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      "applies_to": [
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        "single_large_binary",
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        "many_large_binaries",
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        "single_huge_binary_1gb",
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        "many_large_binaries_multigb"
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      ],
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      "compares_to_oak_modes": [
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        "oak_default",
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        "oak_space_mount"
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      ],
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      "fairness_note": "Requires Git LFS availability and fixture generation with LFS-tracked binaries."
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    },
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    "git_scalar": {
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      "setup": [
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        [
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          "git",
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          "config",
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          "core.fsmonitor",
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          "true"
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        ],
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        [
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          "git",
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          "config",
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          "core.untrackedCache",
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          "true"
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        ],
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        [
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          "git",
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          "config",
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          "core.preloadIndex",
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          "true"
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        ],
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        [
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          "git",
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          "config",
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          "index.threads",
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          "true"
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        ],
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        [
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          "git",
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          "config",
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          "index.version",
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          "4"
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        ],
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        [
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          "git",
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          "config",
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          "core.multiPackIndex",
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          "true"
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        ],
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        [
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          "git",
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          "config",
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          "core.commitGraph",
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          "true"
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        ],
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        [
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          "git",
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          "config",
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          "status.aheadBehind",
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          "false"
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        ],
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        [
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          "git",
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          "config",
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          "gc.auto",
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          "0"
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        ]
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      ],
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      "applies_to": [
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        "all"
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      ],
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      "compares_to_oak_modes": [
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        "oak_default"
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      ],
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      "fairness_note": "Scalar-recommended local configuration (git scalar.c set_recommended_config, local-performance keys). Reported separately from stock Git as git_config_profile=scalar_recommended. Commit-graph/multi-pack-index files are produced by Scalar maintenance and are not applicable to 1-3 commit core histories."
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    }
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  }
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}