diff options
Diffstat (limited to 'Documentation/gitattributes.txt')
| -rw-r--r-- | Documentation/gitattributes.txt | 51 |
1 files changed, 48 insertions, 3 deletions
diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index 564586b943..c80ca5da43 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -62,14 +62,21 @@ consults `$GIT_DIR/info/attributes` file (which has the highest precedence), `.gitattributes` file in the same directory as the path in question, and its parent directories up to the toplevel of the work tree (the further the directory that contains `.gitattributes` -is from the path in question, the lower its precedence). +is from the path in question, the lower its precedence). Finally +global and system-wide files are considered (they have the lowest +precedence). If you wish to affect only a single repository (i.e., to assign -attributes to files that are particular to one user's workflow), then +attributes to files that are particular to +one user's workflow for that repository), then attributes should be placed in the `$GIT_DIR/info/attributes` file. Attributes which should be version-controlled and distributed to other repositories (i.e., attributes of interest to all users) should go into -`.gitattributes` files. +`.gitattributes` files. Attributes that should affect all repositories +for a single user should be placed in a file specified by the +`core.attributesfile` configuration option (see linkgit:git-config[1]). +Attributes for all users on a system should be placed in the +`$(prefix)/etc/gitattributes` file. Sometimes you would need to override an setting of an attribute for a path to `unspecified` state. This can be done by listing @@ -317,6 +324,17 @@ command is "cat"). smudge = cat ------------------------ +For best results, `clean` should not alter its output further if it is +run twice ("clean->clean" should be equivalent to "clean"), and +multiple `smudge` commands should not alter `clean`'s output +("smudge->smudge->clean" should be equivalent to "clean"). See the +section on merging below. + +The "indent" filter is well-behaved in this regard: it will not modify +input that is already correctly indented. In this case, the lack of a +smudge filter means that the clean filter _must_ accept its own output +without modifying it. + Interaction between checkin/checkout attributes ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -331,6 +349,29 @@ In the check-out codepath, the blob content is first converted with `text`, and then `ident` and fed to `filter`. +Merging branches with differing checkin/checkout attributes +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +If you have added attributes to a file that cause the canonical +repository format for that file to change, such as adding a +clean/smudge filter or text/eol/ident attributes, merging anything +where the attribute is not in place would normally cause merge +conflicts. + +To prevent these unnecessary merge conflicts, git can be told to run a +virtual check-out and check-in of all three stages of a file when +resolving a three-way merge by setting the `merge.renormalize` +configuration variable. This prevents changes caused by check-in +conversion from causing spurious merge conflicts when a converted file +is merged with an unconverted file. + +As long as a "smudge->clean" results in the same output as a "clean" +even on files that are already smudged, this strategy will +automatically resolve all filter-related conflicts. Filters that do +not act in this way may cause additional merge conflicts that must be +resolved manually. + + Generating diff text ~~~~~~~~~~~~~~~~~~~~ @@ -441,6 +482,10 @@ patterns are available: - `cpp` suitable for source code in the C and C++ languages. +- `csharp` suitable for source code in the C# language. + +- `fortran` suitable for source code in the Fortran language. + - `html` suitable for HTML/XHTML documents. - `java` suitable for source code in the Java language. |