@struktoai/mirage-core/dist/commands/cli/builtin/git/constants.js

A Unified Virtual Filesystem For AI Agents

// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// The modes git records in a tree. It reads only the owner execute bit to
// choose between the two regular ones, and a mount that reports no mode at all
// stages the ordinary one. A symlink is its own object type, and its blob is
// the target string rather than anything the target holds; symlinks are
// namespace state in mirage, so that mode is only ever reached through the
// name plane.
export const REGULAR = 0o100644;
export const EXECUTABLE = 0o100755;
export const SYMLINK = 0o120000;
export const OWNER_EXECUTE = 0o100;
// The part of a tree entry's mode that is a permission: what a restored
// entry's own bits are set from, the object type above it being the mount's
// business rather than the tree's.
export const PERMISSION_BITS = 0o777;
// The same mode as `SYMLINK`, in the spelling a tree entry carries. The index
// records a number and a tree records git's octal string, so both spellings
// are real here and neither is a stand-in for the other.
export const SYMLINK_MODE = '120000';
/**
 * A gitlink: the commit another repository is checked out at. It is not an
 * object this repository holds, so nothing about it is written into the working
 * tree; git only makes sure a directory stands at the name.
 */
export const GITLINK_MODE = '160000';
// The same mode as `GITLINK_MODE`, as the index records it.
export const GITLINK = 0o160000;
// The modes of a regular file and an executable one, as a tree entry spells
// them.
export const REGULAR_MODE = '100644';
export const EXECUTABLE_MODE = '100755';
// The object types git knows, in its own order.
export const OBJECT_TYPES = ['blob', 'tree', 'commit', 'tag'];
// The symbolic ref every verb resolves first.
export const HEAD = 'HEAD';
// git's default funcname: the nearest earlier line that starts with a letter,
// "_" or "$" names a hunk, trimmed of the only four bytes git's own ctype
// calls blank.
export const FUNCNAME_START = /^[A-Za-z_$]/;
export const GIT_SPACE = new Set([0x20, 0x09, 0x0a, 0x0d]);
// The directory (or, in a linked worktree, the file) a checkout keeps its
// repository under.
export const GIT_DIR = '.git';
// The pretty kinds a placeholder template spells, and the kinds that end every
// entry with a newline rather than separating entries by one.
export const TEMPLATE_KINDS = ['format', 'tformat'];
export const TERMINATED_KINDS = ['oneline', 'tformat'];
// The rules a short ref name is tried against, in the order gitrevisions(7)
// lists them.
export const DWIM_RULES = [
    '{}',
    'refs/{}',
    'refs/tags/{}',
    'refs/heads/{}',
    'refs/remotes/{}',
    'refs/remotes/{}/HEAD',
];
// The branch a new repository, or a clone whose remote names no usable HEAD,
// starts on when nothing says otherwise.
export const DEFAULT_BRANCH = 'master';
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