Documentation / git-config.txton commit War on whitespace (a6080a0)
   1git-config(1)
   2=============
   3
   4NAME
   5----
   6git-config - Get and set repository or global options
   7
   8
   9SYNOPSIS
  10--------
  11[verse]
  12'git-config' [--system | --global] name [value [value_regex]]
  13'git-config' [--system | --global] --add name value
  14'git-config' [--system | --global] --replace-all name [value [value_regex]]
  15'git-config' [--system | --global] [type] --get name [value_regex]
  16'git-config' [--system | --global] [type] --get-all name [value_regex]
  17'git-config' [--system | --global] --unset name [value_regex]
  18'git-config' [--system | --global] --unset-all name [value_regex]
  19'git-config' [--system | --global] --rename-section old_name new_name
  20'git-config' [--system | --global] --remove-section name
  21'git-config' [--system | --global] -l | --list
  22
  23DESCRIPTION
  24-----------
  25You can query/set/replace/unset options with this command. The name is
  26actually the section and the key separated by a dot, and the value will be
  27escaped.
  28
  29Multiple lines can be added to an option by using the '--add' option.
  30If you want to update or unset an option which can occur on multiple
  31lines, a POSIX regexp `value_regex` needs to be given.  Only the
  32existing values that match the regexp are updated or unset.  If
  33you want to handle the lines that do *not* match the regex, just
  34prepend a single exclamation mark in front (see also <<EXAMPLES>>).
  35
  36The type specifier can be either '--int' or '--bool', which will make
  37'git-config' ensure that the variable(s) are of the given type and
  38convert the value to the canonical form (simple decimal number for int,
  39a "true" or "false" string for bool).  Type specifiers currently only
  40take effect for reading operations.  If no type specifier is passed,
  41no checks or transformations are performed on the value.
  42
  43This command will fail if:
  44
  45. The .git/config file is invalid,
  46. Can not write to .git/config,
  47. no section was provided,
  48. the section or key is invalid,
  49. you try to unset an option which does not exist,
  50. you try to unset/set an option for which multiple lines match, or
  51. you use '--global' option without $HOME being properly set.
  52
  53
  54OPTIONS
  55-------
  56
  57--replace-all::
  58        Default behavior is to replace at most one line. This replaces
  59        all lines matching the key (and optionally the value_regex).
  60
  61--add::
  62        Adds a new line to the option without altering any existing
  63        values.  This is the same as providing '^$' as the value_regex.
  64
  65--get::
  66        Get the value for a given key (optionally filtered by a regex
  67        matching the value). Returns error code 1 if the key was not
  68        found and error code 2 if multiple key values were found.
  69
  70--get-all::
  71        Like get, but does not fail if the number of values for the key
  72        is not exactly one.
  73
  74--get-regexp::
  75        Like --get-all, but interprets the name as a regular expression.
  76
  77--global::
  78        For writing options: write to global ~/.gitconfig file rather than
  79        the repository .git/config.
  80+
  81For reading options: read only from global ~/.gitconfig rather than
  82from all available files.
  83+
  84See also <<FILES>>.
  85
  86--system::
  87        For writing options: write to system-wide $(prefix)/etc/gitconfig
  88        rather than the repository .git/config.
  89+
  90For reading options: read only from system-wide $(prefix)/etc/gitconfig
  91rather than from all available files.
  92+
  93See also <<FILES>>.
  94
  95--remove-section::
  96        Remove the given section from the configuration file.
  97
  98--rename-section::
  99        Rename the given section to a new name.
 100
 101--unset::
 102        Remove the line matching the key from config file.
 103
 104--unset-all::
 105        Remove all lines matching the key from config file.
 106
 107-l, --list::
 108        List all variables set in config file.
 109
 110--bool::
 111        git-config will ensure that the output is "true" or "false"
 112
 113--int::
 114        git-config will ensure that the output is a simple
 115        decimal number.  An optional value suffix of 'k', 'm', or 'g'
 116        in the config file will cause the value to be multiplied
 117        by 1024, 1048576, or 1073741824 prior to output.
 118
 119
 120[[FILES]]
 121FILES
 122-----
 123
 124There are three files where git-config will search for configuration
 125options:
 126
 127.git/config::
 128        Repository specific configuration file. (The filename is
 129        of course relative to the repository root, not the working
 130        directory.)
 131
 132~/.gitconfig::
 133        User-specific configuration file. Also called "global"
 134        configuration file.
 135
 136$(prefix)/etc/gitconfig::
 137        System-wide configuration file.
 138
 139If no further options are given, all reading options will read all of these
 140files that are available. If the global or the system-wide configuration
 141file are not available they will be ignored. If the repository configuration
 142file is not available or readable, git-config will exit with a non-zero
 143error code. However, in neither case will an error message be issued.
 144
 145All writing options will per default write to the repository specific
 146configuration file. Note that this also affects options like '--replace-all'
 147and '--unset'. *git-config will only ever change one file at a time*.
 148
 149You can override these rules either by command line options or by environment
 150variables. The '--global' and the '--system' options will limit the file used
 151to the global or system-wide file respectively. The GIT_CONFIG environment
 152variable has a similar effect, but you can specify any filename you want.
 153
 154The GIT_CONFIG_LOCAL environment variable on the other hand only changes
 155the name used instead of the repository configuration file. The global and
 156the system-wide configuration files will still be read. (For writing options
 157this will obviously result in the same behavior as using GIT_CONFIG.)
 158
 159
 160ENVIRONMENT
 161-----------
 162
 163GIT_CONFIG::
 164        Take the configuration from the given file instead of .git/config.
 165        Using the "--global" option forces this to ~/.gitconfig. Using the
 166        "--system" option forces this to $(prefix)/etc/gitconfig.
 167
 168GIT_CONFIG_LOCAL::
 169        Take the configuration from the given file instead if .git/config.
 170        Still read the global and the system-wide configuration files, though.
 171
 172See also <<FILES>>.
 173
 174
 175[[EXAMPLES]]
 176EXAMPLES
 177--------
 178
 179Given a .git/config like this:
 180
 181        #
 182        # This is the config file, and
 183        # a '#' or ';' character indicates
 184        # a comment
 185        #
 186
 187        ; core variables
 188        [core]
 189                ; Don't trust file modes
 190                filemode = false
 191
 192        ; Our diff algorithm
 193        [diff]
 194                external = "/usr/local/bin/gnu-diff -u"
 195                renames = true
 196
 197        ; Proxy settings
 198        [core]
 199                gitproxy="ssh" for "ssh://kernel.org/"
 200                gitproxy="proxy-command" for kernel.org
 201                gitproxy="myprotocol-command" for "my://"
 202                gitproxy=default-proxy ; for all the rest
 203
 204you can set the filemode to true with
 205
 206------------
 207% git config core.filemode true
 208------------
 209
 210The hypothetical proxy command entries actually have a postfix to discern
 211what URL they apply to. Here is how to change the entry for kernel.org
 212to "ssh".
 213
 214------------
 215% git config core.gitproxy '"ssh" for kernel.org' 'for kernel.org$'
 216------------
 217
 218This makes sure that only the key/value pair for kernel.org is replaced.
 219
 220To delete the entry for renames, do
 221
 222------------
 223% git config --unset diff.renames
 224------------
 225
 226If you want to delete an entry for a multivar (like core.gitproxy above),
 227you have to provide a regex matching the value of exactly one line.
 228
 229To query the value for a given key, do
 230
 231------------
 232% git config --get core.filemode
 233------------
 234
 235or
 236
 237------------
 238% git config core.filemode
 239------------
 240
 241or, to query a multivar:
 242
 243------------
 244% git config --get core.gitproxy "for kernel.org$"
 245------------
 246
 247If you want to know all the values for a multivar, do:
 248
 249------------
 250% git config --get-all core.gitproxy
 251------------
 252
 253If you like to live dangerous, you can replace *all* core.gitproxy by a
 254new one with
 255
 256------------
 257% git config --replace-all core.gitproxy ssh
 258------------
 259
 260However, if you really only want to replace the line for the default proxy,
 261i.e. the one without a "for ..." postfix, do something like this:
 262
 263------------
 264% git config core.gitproxy ssh '! for '
 265------------
 266
 267To actually match only values with an exclamation mark, you have to
 268
 269------------
 270% git config section.key value '[!]'
 271------------
 272
 273To add a new proxy, without altering any of the existing ones, use
 274
 275------------
 276% git config core.gitproxy '"proxy" for example.com'
 277------------
 278
 279
 280include::config.txt[]
 281
 282
 283Author
 284------
 285Written by Johannes Schindelin <Johannes.Schindelin@gmx.de>
 286
 287Documentation
 288--------------
 289Documentation by Johannes Schindelin, Petr Baudis and the git-list <git@vger.kernel.org>.
 290
 291GIT
 292---
 293Part of the gitlink:git[7] suite