gritHEAD → docs/global-options
The grit CLI / Global optionsMarkdown

Global options

Options that apply to every grit command.

These options work on any command (and on grit itself when you pass no subcommand).

Option Description
--json Print one JSON object instead of human-readable text. Errors become {"error": "..."}.
--markdown Print agent-friendly Markdown instead of human-readable text. Most commands render structured headings, lists, and tables (or fenced diffs) rather than dumping JSON. Mutually exclusive with --json.
--filter <EXPR> Apply a jq expression to the JSON output. Requires --json.
-h, --help Print help for grit or for a command.
-V, --version Print the version of grit.

Running grit with no command is the same as grit status.

Environment variables

The grit CLI snapshots the process environment into Environment when opening a repository. Library embedders should construct an Environment explicitly instead of relying on these variables.

Variable Effect
GIT_DIR, GIT_WORK_TREE, GIT_CEILING_DIRECTORIES, GIT_PREFIX Repository discovery
GIT_INDEX_FILE, GIT_OBJECT_DIRECTORY, GIT_ALTERNATE_OBJECT_DIRECTORIES Index and object store paths
GIT_CONFIG, GIT_CONFIG_GLOBAL, GIT_CONFIG_SYSTEM, GIT_CONFIG_NOSYSTEM, GIT_CONFIG_COUNT, GIT_CONFIG_KEY_n, GIT_CONFIG_VALUE_n, GIT_CONFIG_PARAMETERS Config cascade
HOME, XDG_CONFIG_HOME, USERPROFILE, USER, USERNAME Home and identity fallbacks
GIT_AUTHOR_*, GIT_COMMITTER_* Author/committer name, email, and date overrides for new objects
GIT_SSH, GIT_SSH_COMMAND SSH transport command
GIT_HTTP_LOW_SPEED_LIMIT, GIT_HTTP_LOW_SPEED_TIME HTTP low-speed abort thresholds
GIT_NOTES_REF, GIT_NOTES_DISPLAY_REF Notes ref selection
GIT_ATTR_SOURCE, GIT_INDEX_VERSION, GIT_PRINT_SHA1_ELLIPSIS Attributes, index format, diff OID display
GIT_NAMESPACE, GIT_REPLACE_REF_BASE, GIT_NO_REPLACE_OBJECTS Ref namespaces and replace refs
GIT_TRACE, GIT_TRACE_SETUP, GIT_TRACE2_PERF Trace output
PATH Helper lookup (e.g. signing programs)
TZ Local timezone for dates when no explicit offset is given
GIT_EXEC_PATH, GIT_INSTALL_ROOT Git helper discovery (credentials)

Test-only knobs (GIT_TEST_NO_WRITE_REV_INDEX, GIT_TEST_MIDX_WRITE_REV, GIT_TEST_REFTABLE_AUTOCOMPACTION, GIT_TEST_DATE_NOW, and related values) are parsed into typed Environment fields when present; they are not read elsewhere in grit-lib.