Documentation / config.txton commit gitweb: Update and improve gitweb/README file (61fd255)
   1CONFIGURATION FILE
   2------------------
   3
   4The git configuration file contains a number of variables that affect
   5the git command's behavior. `.git/config` file for each repository
   6is used to store the information for that repository, and
   7`$HOME/.gitconfig` is used to store per user information to give
   8fallback values for `.git/config` file. The file `/etc/gitconfig`
   9can be used to store system-wide defaults.
  10
  11They can be used by both the git plumbing
  12and the porcelains. The variables are divided into sections, where
  13in the fully qualified variable name the variable itself is the last
  14dot-separated segment and the section name is everything before the last
  15dot. The variable names are case-insensitive and only alphanumeric
  16characters are allowed. Some variables may appear multiple times.
  17
  18Syntax
  19~~~~~~
  20
  21The syntax is fairly flexible and permissive; whitespaces are mostly
  22ignored.  The '#' and ';' characters begin comments to the end of line,
  23blank lines are ignored.
  24
  25The file consists of sections and variables.  A section begins with
  26the name of the section in square brackets and continues until the next
  27section begins.  Section names are not case sensitive.  Only alphanumeric
  28characters, '`-`' and '`.`' are allowed in section names.  Each variable
  29must belong to some section, which means that there must be section
  30header before first setting of a variable.
  31
  32Sections can be further divided into subsections.  To begin a subsection
  33put its name in double quotes, separated by space from the section name,
  34in the section header, like in example below:
  35
  36--------
  37        [section "subsection"]
  38
  39--------
  40
  41Subsection names can contain any characters except newline (doublequote
  42'`"`' and backslash have to be escaped as '`\"`' and '`\\`',
  43respectively) and are case sensitive.  Section header cannot span multiple
  44lines.  Variables may belong directly to a section or to a given subsection.
  45You can have `[section]` if you have `[section "subsection"]`, but you
  46don't need to.
  47
  48There is also (case insensitive) alternative `[section.subsection]` syntax.
  49In this syntax subsection names follow the same restrictions as for section
  50name.
  51
  52All the other lines are recognized as setting variables, in the form
  53'name = value'.  If there is no equal sign on the line, the entire line
  54is taken as 'name' and the variable is recognized as boolean "true".
  55The variable names are case-insensitive and only alphanumeric
  56characters and '`-`' are allowed.  There can be more than one value
  57for a given variable; we say then that variable is multivalued.
  58
  59Leading and trailing whitespace in a variable value is discarded.
  60Internal whitespace within a variable value is retained verbatim.
  61
  62The values following the equals sign in variable assign are all either
  63a string, an integer, or a boolean.  Boolean values may be given as yes/no,
  640/1 or true/false.  Case is not significant in boolean values, when
  65converting value to the canonical form using '--bool' type specifier;
  66`git-config` will ensure that the output is "true" or "false".
  67
  68String values may be entirely or partially enclosed in double quotes.
  69You need to enclose variable value in double quotes if you want to
  70preserve leading or trailing whitespace, or if variable value contains
  71beginning of comment characters (if it contains '#' or ';').
  72Double quote '`"`' and backslash '`\`' characters in variable value must
  73be escaped: use '`\"`' for '`"`' and '`\\`' for '`\`'.
  74
  75The following escape sequences (beside '`\"`' and '`\\`') are recognized:
  76'`\n`' for newline character (NL), '`\t`' for horizontal tabulation (HT, TAB)
  77and '`\b`' for backspace (BS).  No other char escape sequence, nor octal
  78char sequences are valid.
  79
  80Variable value ending in a '`\`' is continued on the next line in the
  81customary UNIX fashion.
  82
  83Some variables may require special value format.
  84
  85Example
  86~~~~~~~
  87
  88        # Core variables
  89        [core]
  90                ; Don't trust file modes
  91                filemode = false
  92
  93        # Our diff algorithm
  94        [diff]
  95                external = "/usr/local/bin/gnu-diff -u"
  96                renames = true
  97
  98        [branch "devel"]
  99                remote = origin
 100                merge = refs/heads/devel
 101
 102        # Proxy settings
 103        [core]
 104                gitProxy="ssh" for "kernel.org"
 105                gitProxy=default-proxy ; for the rest
 106
 107Variables
 108~~~~~~~~~
 109
 110Note that this list is non-comprehensive and not necessarily complete.
 111For command-specific variables, you will find a more detailed description
 112in the appropriate manual page. You will find a description of non-core
 113porcelain configuration variables in the respective porcelain documentation.
 114
 115core.fileMode::
 116        If false, the executable bit differences between the index and
 117        the working copy are ignored; useful on broken filesystems like FAT.
 118        See gitlink:git-update-index[1]. True by default.
 119
 120core.quotepath::
 121        The commands that output paths (e.g. `ls-files`,
 122        `diff`), when not given the `-z` option, will quote
 123        "unusual" characters in the pathname by enclosing the
 124        pathname in a double-quote pair and with backslashes the
 125        same way strings in C source code are quoted.  If this
 126        variable is set to false, the bytes higher than 0x80 are
 127        not quoted but output as verbatim.  Note that double
 128        quote, backslash and control characters are always
 129        quoted without `-z` regardless of the setting of this
 130        variable.
 131
 132core.autocrlf::
 133        If true, makes git convert `CRLF` at the end of lines in text files to
 134        `LF` when reading from the filesystem, and convert in reverse when
 135        writing to the filesystem.  The variable can be set to
 136        'input', in which case the conversion happens only while
 137        reading from the filesystem but files are written out with
 138        `LF` at the end of lines.  Currently, which paths to consider
 139        "text" (i.e. be subjected to the autocrlf mechanism) is
 140        decided purely based on the contents.
 141
 142core.symlinks::
 143        If false, symbolic links are checked out as small plain files that
 144        contain the link text. gitlink:git-update-index[1] and
 145        gitlink:git-add[1] will not change the recorded type to regular
 146        file. Useful on filesystems like FAT that do not support
 147        symbolic links. True by default.
 148
 149core.gitProxy::
 150        A "proxy command" to execute (as 'command host port') instead
 151        of establishing direct connection to the remote server when
 152        using the git protocol for fetching. If the variable value is
 153        in the "COMMAND for DOMAIN" format, the command is applied only
 154        on hostnames ending with the specified domain string. This variable
 155        may be set multiple times and is matched in the given order;
 156        the first match wins.
 157+
 158Can be overridden by the 'GIT_PROXY_COMMAND' environment variable
 159(which always applies universally, without the special "for"
 160handling).
 161
 162core.ignoreStat::
 163        The working copy files are assumed to stay unchanged until you
 164        mark them otherwise manually - Git will not detect the file changes
 165        by lstat() calls. This is useful on systems where those are very
 166        slow, such as Microsoft Windows.  See gitlink:git-update-index[1].
 167        False by default.
 168
 169core.preferSymlinkRefs::
 170        Instead of the default "symref" format for HEAD
 171        and other symbolic reference files, use symbolic links.
 172        This is sometimes needed to work with old scripts that
 173        expect HEAD to be a symbolic link.
 174
 175core.bare::
 176        If true this repository is assumed to be 'bare' and has no
 177        working directory associated with it.  If this is the case a
 178        number of commands that require a working directory will be
 179        disabled, such as gitlink:git-add[1] or gitlink:git-merge[1].
 180+
 181This setting is automatically guessed by gitlink:git-clone[1] or
 182gitlink:git-init[1] when the repository was created.  By default a
 183repository that ends in "/.git" is assumed to be not bare (bare =
 184false), while all other repositories are assumed to be bare (bare
 185= true).
 186
 187core.worktree::
 188        Set the path to the working tree.  The value will not be
 189        used in combination with repositories found automatically in
 190        a .git directory (i.e. $GIT_DIR is not set).
 191        This can be overridden by the GIT_WORK_TREE environment
 192        variable and the '--work-tree' command line option.
 193
 194core.logAllRefUpdates::
 195        Enable the reflog. Updates to a ref <ref> is logged to the file
 196        "$GIT_DIR/logs/<ref>", by appending the new and old
 197        SHA1, the date/time and the reason of the update, but
 198        only when the file exists.  If this configuration
 199        variable is set to true, missing "$GIT_DIR/logs/<ref>"
 200        file is automatically created for branch heads.
 201+
 202This information can be used to determine what commit
 203was the tip of a branch "2 days ago".
 204+
 205This value is true by default in a repository that has
 206a working directory associated with it, and false by
 207default in a bare repository.
 208
 209core.repositoryFormatVersion::
 210        Internal variable identifying the repository format and layout
 211        version.
 212
 213core.sharedRepository::
 214        When 'group' (or 'true'), the repository is made shareable between
 215        several users in a group (making sure all the files and objects are
 216        group-writable). When 'all' (or 'world' or 'everybody'), the
 217        repository will be readable by all users, additionally to being
 218        group-shareable. When 'umask' (or 'false'), git will use permissions
 219        reported by umask(2). See gitlink:git-init[1]. False by default.
 220
 221core.warnAmbiguousRefs::
 222        If true, git will warn you if the ref name you passed it is ambiguous
 223        and might match multiple refs in the .git/refs/ tree. True by default.
 224
 225core.compression::
 226        An integer -1..9, indicating a default compression level.
 227        -1 is the zlib default. 0 means no compression,
 228        and 1..9 are various speed/size tradeoffs, 9 being slowest.
 229        If set, this provides a default to other compression variables,
 230        such as 'core.loosecompression' and 'pack.compression'.
 231
 232core.loosecompression::
 233        An integer -1..9, indicating the compression level for objects that
 234        are not in a pack file. -1 is the zlib default. 0 means no
 235        compression, and 1..9 are various speed/size tradeoffs, 9 being
 236        slowest.  If not set,  defaults to core.compression.  If that is
 237        not set,  defaults to 1 (best speed).
 238
 239core.packedGitWindowSize::
 240        Number of bytes of a pack file to map into memory in a
 241        single mapping operation.  Larger window sizes may allow
 242        your system to process a smaller number of large pack files
 243        more quickly.  Smaller window sizes will negatively affect
 244        performance due to increased calls to the operating system's
 245        memory manager, but may improve performance when accessing
 246        a large number of large pack files.
 247+
 248Default is 1 MiB if NO_MMAP was set at compile time, otherwise 32
 249MiB on 32 bit platforms and 1 GiB on 64 bit platforms.  This should
 250be reasonable for all users/operating systems.  You probably do
 251not need to adjust this value.
 252+
 253Common unit suffixes of 'k', 'm', or 'g' are supported.
 254
 255core.packedGitLimit::
 256        Maximum number of bytes to map simultaneously into memory
 257        from pack files.  If Git needs to access more than this many
 258        bytes at once to complete an operation it will unmap existing
 259        regions to reclaim virtual address space within the process.
 260+
 261Default is 256 MiB on 32 bit platforms and 8 GiB on 64 bit platforms.
 262This should be reasonable for all users/operating systems, except on
 263the largest projects.  You probably do not need to adjust this value.
 264+
 265Common unit suffixes of 'k', 'm', or 'g' are supported.
 266
 267core.deltaBaseCacheLimit::
 268        Maximum number of bytes to reserve for caching base objects
 269        that multiple deltafied objects reference.  By storing the
 270        entire decompressed base objects in a cache Git is able
 271        to avoid unpacking and decompressing frequently used base
 272        objects multiple times.
 273+
 274Default is 16 MiB on all platforms.  This should be reasonable
 275for all users/operating systems, except on the largest projects.
 276You probably do not need to adjust this value.
 277+
 278Common unit suffixes of 'k', 'm', or 'g' are supported.
 279
 280core.excludesfile::
 281        In addition to '.gitignore' (per-directory) and
 282        '.git/info/exclude', git looks into this file for patterns
 283        of files which are not meant to be tracked.  See
 284        gitlink:gitignore[5].
 285
 286core.editor::
 287        Commands such as `commit` and `tag` that lets you edit
 288        messages by launching an editor uses the value of this
 289        variable when it is set, and the environment variable
 290        `GIT_EDITOR` is not set.  The order of preference is
 291        `GIT_EDITOR` environment, `core.editor`, `VISUAL` and
 292        `EDITOR` environment variables and then finally `vi`.
 293
 294core.pager::
 295        The command that git will use to paginate output.  Can be overridden
 296        with the `GIT_PAGER` environment variable.
 297
 298alias.*::
 299        Command aliases for the gitlink:git[1] command wrapper - e.g.
 300        after defining "alias.last = cat-file commit HEAD", the invocation
 301        "git last" is equivalent to "git cat-file commit HEAD". To avoid
 302        confusion and troubles with script usage, aliases that
 303        hide existing git commands are ignored. Arguments are split by
 304        spaces, the usual shell quoting and escaping is supported.
 305        quote pair and a backslash can be used to quote them.
 306+
 307If the alias expansion is prefixed with an exclamation point,
 308it will be treated as a shell command.  For example, defining
 309"alias.new = !gitk --all --not ORIG_HEAD", the invocation
 310"git new" is equivalent to running the shell command
 311"gitk --all --not ORIG_HEAD".
 312
 313apply.whitespace::
 314        Tells `git-apply` how to handle whitespaces, in the same way
 315        as the '--whitespace' option. See gitlink:git-apply[1].
 316
 317branch.autosetupmerge::
 318        Tells `git-branch` and `git-checkout` to setup new branches
 319        so that gitlink:git-pull[1] will appropriately merge from that
 320        remote branch.  Note that even if this option is not set,
 321        this behavior can be chosen per-branch using the `--track`
 322        and `--no-track` options.  This option defaults to false.
 323
 324branch.<name>.remote::
 325        When in branch <name>, it tells `git fetch` which remote to fetch.
 326        If this option is not given, `git fetch` defaults to remote "origin".
 327
 328branch.<name>.merge::
 329        When in branch <name>, it tells `git fetch` the default
 330        refspec to be marked for merging in FETCH_HEAD. The value is
 331        handled like the remote part of a refspec, and must match a
 332        ref which is fetched from the remote given by
 333        "branch.<name>.remote".
 334        The merge information is used by `git pull` (which at first calls
 335        `git fetch`) to lookup the default branch for merging. Without
 336        this option, `git pull` defaults to merge the first refspec fetched.
 337        Specify multiple values to get an octopus merge.
 338        If you wish to setup `git pull` so that it merges into <name> from
 339        another branch in the local repository, you can point
 340        branch.<name>.merge to the desired branch, and use the special setting
 341        `.` (a period) for branch.<name>.remote.
 342
 343branch.<name>.mergeoptions::
 344        Sets default options for merging into branch <name>. The syntax and
 345        supported options are equal to that of gitlink:git-merge[1], but
 346        option values containing whitespace characters are currently not
 347        supported.
 348
 349clean.requireForce::
 350        A boolean to make git-clean do nothing unless given -f
 351        or -n.   Defaults to true.
 352
 353color.branch::
 354        A boolean to enable/disable color in the output of
 355        gitlink:git-branch[1]. May be set to `true` (or `always`),
 356        `false` (or `never`) or `auto`, in which case colors are used
 357        only when the output is to a terminal. Defaults to false.
 358
 359color.branch.<slot>::
 360        Use customized color for branch coloration. `<slot>` is one of
 361        `current` (the current branch), `local` (a local branch),
 362        `remote` (a tracking branch in refs/remotes/), `plain` (other
 363        refs).
 364+
 365The value for these configuration variables is a list of colors (at most
 366two) and attributes (at most one), separated by spaces.  The colors
 367accepted are `normal`, `black`, `red`, `green`, `yellow`, `blue`,
 368`magenta`, `cyan` and `white`; the attributes are `bold`, `dim`, `ul`,
 369`blink` and `reverse`.  The first color given is the foreground; the
 370second is the background.  The position of the attribute, if any,
 371doesn't matter.
 372
 373color.diff::
 374        When true (or `always`), always use colors in patch.
 375        When false (or `never`), never.  When set to `auto`, use
 376        colors only when the output is to the terminal.
 377
 378color.diff.<slot>::
 379        Use customized color for diff colorization.  `<slot>` specifies
 380        which part of the patch to use the specified color, and is one
 381        of `plain` (context text), `meta` (metainformation), `frag`
 382        (hunk header), `old` (removed lines), `new` (added lines),
 383        `commit` (commit headers), or `whitespace` (highlighting dubious
 384        whitespace).  The values of these variables may be specified as
 385        in color.branch.<slot>.
 386
 387color.pager::
 388        A boolean to enable/disable colored output when the pager is in
 389        use (default is true).
 390
 391color.status::
 392        A boolean to enable/disable color in the output of
 393        gitlink:git-status[1]. May be set to `true` (or `always`),
 394        `false` (or `never`) or `auto`, in which case colors are used
 395        only when the output is to a terminal. Defaults to false.
 396
 397color.status.<slot>::
 398        Use customized color for status colorization. `<slot>` is
 399        one of `header` (the header text of the status message),
 400        `added` or `updated` (files which are added but not committed),
 401        `changed` (files which are changed but not added in the index),
 402        or `untracked` (files which are not tracked by git). The values of
 403        these variables may be specified as in color.branch.<slot>.
 404
 405commit.template::
 406        Specify a file to use as the template for new commit messages.
 407
 408diff.autorefreshindex::
 409        When using `git diff` to compare with work tree
 410        files, do not consider stat-only change as changed.
 411        Instead, silently run `git update-index --refresh` to
 412        update the cached stat information for paths whose
 413        contents in the work tree match the contents in the
 414        index.  This option defaults to true.  Note that this
 415        affects only `git diff` Porcelain, and not lower level
 416        `diff` commands, such as `git diff-files`.
 417
 418diff.renameLimit::
 419        The number of files to consider when performing the copy/rename
 420        detection; equivalent to the git diff option '-l'.
 421
 422diff.renames::
 423        Tells git to detect renames.  If set to any boolean value, it
 424        will enable basic rename detection.  If set to "copies" or
 425        "copy", it will detect copies, as well.
 426
 427fetch.unpackLimit::
 428        If the number of objects fetched over the git native
 429        transfer is below this
 430        limit, then the objects will be unpacked into loose object
 431        files. However if the number of received objects equals or
 432        exceeds this limit then the received pack will be stored as
 433        a pack, after adding any missing delta bases.  Storing the
 434        pack from a push can make the push operation complete faster,
 435        especially on slow filesystems.
 436
 437format.numbered::
 438        A boolean which can enable sequence numbers in patch subjects.
 439        Seting this option to "auto" will enable it only if there is
 440        more than one patch.  See --numbered option in
 441        gitlink:git-format-patch[1].
 442
 443format.headers::
 444        Additional email headers to include in a patch to be submitted
 445        by mail.  See gitlink:git-format-patch[1].
 446
 447format.suffix::
 448        The default for format-patch is to output files with the suffix
 449        `.patch`. Use this variable to change that suffix (make sure to
 450        include the dot if you want it).
 451
 452gc.aggressiveWindow::
 453        The window size parameter used in the delta compression
 454        algorithm used by 'git gc --aggressive'.  This defaults
 455        to 10.
 456
 457gc.auto::
 458        When there are approximately more than this many loose
 459        objects in the repository, `git gc --auto` will pack them.
 460        Some Porcelain commands use this command to perform a
 461        light-weight garbage collection from time to time.  Setting
 462        this to 0 disables it.
 463
 464gc.autopacklimit::
 465        When there are more than this many packs that are not
 466        marked with `*.keep` file in the repository, `git gc
 467        --auto` consolidates them into one larger pack.  Setting
 468        this to 0 disables this.
 469
 470gc.packrefs::
 471        `git gc` does not run `git pack-refs` in a bare repository by
 472        default so that older dumb-transport clients can still fetch
 473        from the repository.  Setting this to `true` lets `git
 474        gc` to run `git pack-refs`.  Setting this to `false` tells
 475        `git gc` never to run `git pack-refs`. The default setting is
 476        `notbare`. Enable it only when you know you do not have to
 477        support such clients.  The default setting will change to `true`
 478        at some stage, and setting this to `false` will continue to
 479        prevent `git pack-refs` from being run from `git gc`.
 480
 481gc.reflogexpire::
 482        `git reflog expire` removes reflog entries older than
 483        this time; defaults to 90 days.
 484
 485gc.reflogexpireunreachable::
 486        `git reflog expire` removes reflog entries older than
 487        this time and are not reachable from the current tip;
 488        defaults to 30 days.
 489
 490gc.rerereresolved::
 491        Records of conflicted merge you resolved earlier are
 492        kept for this many days when `git rerere gc` is run.
 493        The default is 60 days.  See gitlink:git-rerere[1].
 494
 495gc.rerereunresolved::
 496        Records of conflicted merge you have not resolved are
 497        kept for this many days when `git rerere gc` is run.
 498        The default is 15 days.  See gitlink:git-rerere[1].
 499
 500rerere.enabled::
 501        Activate recording of resolved conflicts, so that identical
 502        conflict hunks can be resolved automatically, should they
 503        be encountered again.  See gitlink:git-rerere[1].
 504
 505gitcvs.enabled::
 506        Whether the CVS server interface is enabled for this repository.
 507        See gitlink:git-cvsserver[1].
 508
 509gitcvs.logfile::
 510        Path to a log file where the CVS server interface well... logs
 511        various stuff. See gitlink:git-cvsserver[1].
 512
 513gitcvs.allbinary::
 514        If true, all files are sent to the client in mode '-kb'. This
 515        causes the client to treat all files as binary files which suppresses
 516        any newline munging it otherwise might do. A work-around for the
 517        fact that there is no way yet to set single files to mode '-kb'.
 518
 519gitcvs.dbname::
 520        Database used by git-cvsserver to cache revision information
 521        derived from the git repository. The exact meaning depends on the
 522        used database driver, for SQLite (which is the default driver) this
 523        is a filename. Supports variable substitution (see
 524        gitlink:git-cvsserver[1] for details). May not contain semicolons (`;`).
 525        Default: '%Ggitcvs.%m.sqlite'
 526
 527gitcvs.dbdriver::
 528        Used Perl DBI driver. You can specify any available driver
 529        for this here, but it might not work. git-cvsserver is tested
 530        with 'DBD::SQLite', reported to work with 'DBD::Pg', and
 531        reported *not* to work with 'DBD::mysql'. Experimental feature.
 532        May not contain double colons (`:`). Default: 'SQLite'.
 533        See gitlink:git-cvsserver[1].
 534
 535gitcvs.dbuser, gitcvs.dbpass::
 536        Database user and password. Only useful if setting 'gitcvs.dbdriver',
 537        since SQLite has no concept of database users and/or passwords.
 538        'gitcvs.dbuser' supports variable substitution (see
 539        gitlink:git-cvsserver[1] for details).
 540
 541All gitcvs variables except for 'gitcvs.allbinary' can also be
 542specified as 'gitcvs.<access_method>.<varname>' (where 'access_method'
 543is one of "ext" and "pserver") to make them apply only for the given
 544access method.
 545
 546http.sslVerify::
 547        Whether to verify the SSL certificate when fetching or pushing
 548        over HTTPS. Can be overridden by the 'GIT_SSL_NO_VERIFY' environment
 549        variable.
 550
 551http.sslCert::
 552        File containing the SSL certificate when fetching or pushing
 553        over HTTPS. Can be overridden by the 'GIT_SSL_CERT' environment
 554        variable.
 555
 556http.sslKey::
 557        File containing the SSL private key when fetching or pushing
 558        over HTTPS. Can be overridden by the 'GIT_SSL_KEY' environment
 559        variable.
 560
 561http.sslCAInfo::
 562        File containing the certificates to verify the peer with when
 563        fetching or pushing over HTTPS. Can be overridden by the
 564        'GIT_SSL_CAINFO' environment variable.
 565
 566http.sslCAPath::
 567        Path containing files with the CA certificates to verify the peer
 568        with when fetching or pushing over HTTPS. Can be overridden
 569        by the 'GIT_SSL_CAPATH' environment variable.
 570
 571http.maxRequests::
 572        How many HTTP requests to launch in parallel. Can be overridden
 573        by the 'GIT_HTTP_MAX_REQUESTS' environment variable. Default is 5.
 574
 575http.lowSpeedLimit, http.lowSpeedTime::
 576        If the HTTP transfer speed is less than 'http.lowSpeedLimit'
 577        for longer than 'http.lowSpeedTime' seconds, the transfer is aborted.
 578        Can be overridden by the 'GIT_HTTP_LOW_SPEED_LIMIT' and
 579        'GIT_HTTP_LOW_SPEED_TIME' environment variables.
 580
 581http.noEPSV::
 582        A boolean which disables using of EPSV ftp command by curl.
 583        This can helpful with some "poor" ftp servers which don't
 584        support EPSV mode. Can be overridden by the 'GIT_CURL_FTP_NO_EPSV'
 585        environment variable. Default is false (curl will use EPSV).
 586
 587i18n.commitEncoding::
 588        Character encoding the commit messages are stored in; git itself
 589        does not care per se, but this information is necessary e.g. when
 590        importing commits from emails or in the gitk graphical history
 591        browser (and possibly at other places in the future or in other
 592        porcelains). See e.g. gitlink:git-mailinfo[1]. Defaults to 'utf-8'.
 593
 594i18n.logOutputEncoding::
 595        Character encoding the commit messages are converted to when
 596        running `git-log` and friends.
 597
 598log.showroot::
 599        If true, the initial commit will be shown as a big creation event.
 600        This is equivalent to a diff against an empty tree.
 601        Tools like gitlink:git-log[1] or gitlink:git-whatchanged[1], which
 602        normally hide the root commit will now show it. True by default.
 603
 604merge.summary::
 605        Whether to include summaries of merged commits in newly created
 606        merge commit messages. False by default.
 607
 608merge.tool::
 609        Controls which merge resolution program is used by
 610        gitlink:git-mergetool[1].  Valid values are: "kdiff3", "tkdiff",
 611        "meld", "xxdiff", "emerge", "vimdiff", "gvimdiff", and "opendiff".
 612
 613merge.verbosity::
 614        Controls the amount of output shown by the recursive merge
 615        strategy.  Level 0 outputs nothing except a final error
 616        message if conflicts were detected. Level 1 outputs only
 617        conflicts, 2 outputs conflicts and file changes.  Level 5 and
 618        above outputs debugging information.  The default is level 2.
 619        Can be overridden by 'GIT_MERGE_VERBOSITY' environment variable.
 620
 621merge.<driver>.name::
 622        Defines a human readable name for a custom low-level
 623        merge driver.  See gitlink:gitattributes[5] for details.
 624
 625merge.<driver>.driver::
 626        Defines the command that implements a custom low-level
 627        merge driver.  See gitlink:gitattributes[5] for details.
 628
 629merge.<driver>.recursive::
 630        Names a low-level merge driver to be used when
 631        performing an internal merge between common ancestors.
 632        See gitlink:gitattributes[5] for details.
 633
 634pack.window::
 635        The size of the window used by gitlink:git-pack-objects[1] when no
 636        window size is given on the command line. Defaults to 10.
 637
 638pack.depth::
 639        The maximum delta depth used by gitlink:git-pack-objects[1] when no
 640        maximum depth is given on the command line. Defaults to 50.
 641
 642pack.windowMemory::
 643        The window memory size limit used by gitlink:git-pack-objects[1]
 644        when no limit is given on the command line.  The value can be
 645        suffixed with "k", "m", or "g".  Defaults to 0, meaning no
 646        limit.
 647
 648pack.compression::
 649        An integer -1..9, indicating the compression level for objects
 650        in a pack file. -1 is the zlib default. 0 means no
 651        compression, and 1..9 are various speed/size tradeoffs, 9 being
 652        slowest.  If not set,  defaults to core.compression.  If that is
 653        not set,  defaults to -1, the zlib default, which is "a default
 654        compromise between speed and compression (currently equivalent
 655        to level 6)."
 656
 657pack.deltaCacheSize::
 658        The maximum memory in bytes used for caching deltas in
 659        gitlink:git-pack-objects[1].
 660        A value of 0 means no limit. Defaults to 0.
 661
 662pack.deltaCacheLimit::
 663        The maximum size of a delta, that is cached in
 664        gitlink:git-pack-objects[1]. Defaults to 1000.
 665
 666pack.threads::
 667        Specifies the number of threads to spawn when searching for best
 668        delta matches.  This requires that gitlink:git-pack-objects[1]
 669        be compiled with pthreads otherwise this option is ignored with a
 670        warning. This is meant to reduce packing time on multiprocessor
 671        machines. The required amount of memory for the delta search window
 672        is however multiplied by the number of threads.
 673
 674pack.indexVersion::
 675        Specify the default pack index version.  Valid values are 1 for
 676        legacy pack index used by Git versions prior to 1.5.2, and 2 for
 677        the new pack index with capabilities for packs larger than 4 GB
 678        as well as proper protection against the repacking of corrupted
 679        packs.  Version 2 is selected and this config option ignored
 680        whenever the corresponding pack is larger than 2 GB.  Otherwise
 681        the default is 1.
 682
 683pull.octopus::
 684        The default merge strategy to use when pulling multiple branches
 685        at once.
 686
 687pull.twohead::
 688        The default merge strategy to use when pulling a single branch.
 689
 690remote.<name>.url::
 691        The URL of a remote repository.  See gitlink:git-fetch[1] or
 692        gitlink:git-push[1].
 693
 694remote.<name>.fetch::
 695        The default set of "refspec" for gitlink:git-fetch[1]. See
 696        gitlink:git-fetch[1].
 697
 698remote.<name>.push::
 699        The default set of "refspec" for gitlink:git-push[1]. See
 700        gitlink:git-push[1].
 701
 702remote.<name>.skipDefaultUpdate::
 703        If true, this remote will be skipped by default when updating
 704        using the remote subcommand of gitlink:git-remote[1].
 705
 706remote.<name>.receivepack::
 707        The default program to execute on the remote side when pushing.  See
 708        option \--exec of gitlink:git-push[1].
 709
 710remote.<name>.uploadpack::
 711        The default program to execute on the remote side when fetching.  See
 712        option \--exec of gitlink:git-fetch-pack[1].
 713
 714remote.<name>.tagopt::
 715        Setting this value to --no-tags disables automatic tag following when fetching
 716        from remote <name>
 717
 718remotes.<group>::
 719        The list of remotes which are fetched by "git remote update
 720        <group>".  See gitlink:git-remote[1].
 721
 722repack.usedeltabaseoffset::
 723        Allow gitlink:git-repack[1] to create packs that uses
 724        delta-base offset.  Defaults to false.
 725
 726show.difftree::
 727        The default gitlink:git-diff-tree[1] arguments to be used
 728        for gitlink:git-show[1].
 729
 730showbranch.default::
 731        The default set of branches for gitlink:git-show-branch[1].
 732        See gitlink:git-show-branch[1].
 733
 734tar.umask::
 735        This variable can be used to restrict the permission bits of
 736        tar archive entries.  The default is 0002, which turns off the
 737        world write bit.  The special value "user" indicates that the
 738        archiving user's umask will be used instead.  See umask(2) and
 739        gitlink:git-archive[1].
 740
 741user.email::
 742        Your email address to be recorded in any newly created commits.
 743        Can be overridden by the 'GIT_AUTHOR_EMAIL', 'GIT_COMMITTER_EMAIL', and
 744        'EMAIL' environment variables.  See gitlink:git-commit-tree[1].
 745
 746user.name::
 747        Your full name to be recorded in any newly created commits.
 748        Can be overridden by the 'GIT_AUTHOR_NAME' and 'GIT_COMMITTER_NAME'
 749        environment variables.  See gitlink:git-commit-tree[1].
 750
 751user.signingkey::
 752        If gitlink:git-tag[1] is not selecting the key you want it to
 753        automatically when creating a signed tag, you can override the
 754        default selection with this variable.  This option is passed
 755        unchanged to gpg's --local-user parameter, so you may specify a key
 756        using any method that gpg supports.
 757
 758whatchanged.difftree::
 759        The default gitlink:git-diff-tree[1] arguments to be used
 760        for gitlink:git-whatchanged[1].
 761
 762imap::
 763        The configuration variables in the 'imap' section are described
 764        in gitlink:git-imap-send[1].
 765
 766receive.unpackLimit::
 767        If the number of objects received in a push is below this
 768        limit then the objects will be unpacked into loose object
 769        files. However if the number of received objects equals or
 770        exceeds this limit then the received pack will be stored as
 771        a pack, after adding any missing delta bases.  Storing the
 772        pack from a push can make the push operation complete faster,
 773        especially on slow filesystems.
 774
 775receive.denyNonFastForwards::
 776        If set to true, git-receive-pack will deny a ref update which is
 777        not a fast forward. Use this to prevent such an update via a push,
 778        even if that push is forced. This configuration variable is
 779        set when initializing a shared repository.
 780
 781transfer.unpackLimit::
 782        When `fetch.unpackLimit` or `receive.unpackLimit` are
 783        not set, the value of this variable is used instead.