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Diffstat (limited to 'Documentation/gitattributes.txt')
| -rw-r--r-- | Documentation/gitattributes.txt | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index 126871756d..d2edb9b14a 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -151,8 +151,34 @@ Unspecified:: text, it is treated as text. Otherwise it would generate `Binary files differ`. -Any other value set to `diff` attribute is ignored and git acts -as if the attribute is left unspecified. +String:: + + Diff is shown using the specified custom diff driver. + The driver program is given its input using the same + calling convention as used for GIT_EXTERNAL_DIFF + program. + + +Defining a custom diff driver +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +The definition of a diff driver is done in `gitconfig`, not +`gitattributes` file, so strictly speaking this manual page is a +wrong place to talk about it. However... + +To define a custom diff driver `jcdiff`, add a section to your +`$GIT_DIR/config` file (or `$HOME/.gitconfig` file) like this: + +---------------------------------------------------------------- +[diff "jcdiff"] + command = j-c-diff +---------------------------------------------------------------- + +When git needs to show you a diff for the path with `diff` +attribute set to `jcdiff`, it calls the command you specified +with the above configuration, i.e. `j-c-diff`, with 7 +parameters, just like `GIT_EXTERNAL_DIFF` program is called. +See gitlink:git[7] for details. Performing a three-way merge @@ -183,7 +209,7 @@ Unspecified:: different merge driver to be used for paths to which the `merge` attribute is unspecified. -Any other string value:: +String:: 3-way merge is performed using the specified custom merge driver. The built-in 3-way merge driver can be |