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v0.8.1
Revision 90d0ed96b76ee51f8ae6f32923b92e7b20ba73c0 authored by Junio C Hamano on 28 February 2008, 21:09:30 UTC, committed by Junio C Hamano on 03 March 2008, 07:15:06 UTC 
tests: introduce test_must_fail
 
When we expect a git command to notice and signal errors, we
carelessly wrote in our tests:

    test_expect_success 'reject bogus request' '
        do something &&
        do something else &&
        ! git command
    '

but a non-zero exit could come from the "git command" segfaulting.

A new helper function "tset_must_fail" is introduced and it is
meant to be used to make sure the command gracefully fails (iow,
dying and exiting with non zero status is counted as a failure
to "gracefully fail").  The above example should be written as:

    test_expect_success 'reject bogus request' '
        do something &&
        do something else &&
        test_must_fail git command
    '

Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent fcbcfe7
Raw File
git-merge-file.txt 
git-merge-file(1)
=================

NAME
----
git-merge-file - Run a three-way file merge


SYNOPSIS
--------
[verse]
'git-merge-file' [-L <current-name> [-L <base-name> [-L <other-name>]]]
	[-p|--stdout] [-q|--quiet] <current-file> <base-file> <other-file>


DESCRIPTION
-----------
git-file-merge incorporates all changes that lead from the `<base-file>`
to `<other-file>` into `<current-file>`. The result ordinarily goes into
`<current-file>`. git-merge-file is useful for combining separate changes
to an original. Suppose `<base-file>` is the original, and both
`<current-file>` and `<other-file>` are modifications of `<base-file>`.
Then git-merge-file combines both changes.

A conflict occurs if both `<current-file>` and `<other-file>` have changes
in a common segment of lines. If a conflict is found, git-merge-file
normally outputs a warning and brackets the conflict with <<<<<<< and
>>>>>>> lines. A typical conflict will look like this:

	<<<<<<< A
	lines in file A
	=======
	lines in file B
	>>>>>>> B

If there are conflicts, the user should edit the result and delete one of
the alternatives.

The exit value of this program is negative on error, and the number of
conflicts otherwise. If the merge was clean, the exit value is 0.

git-merge-file is designed to be a minimal clone of RCS merge, that is, it
implements all of RCS merge's functionality which is needed by
linkgit:git[1].


OPTIONS
-------

-L <label>::
	This option may be given up to three times, and
	specifies labels to be used in place of the
	corresponding file names in conflict reports. That is,
	`git-merge-file -L x -L y -L z a b c` generates output that
	looks like it came from files x, y and z instead of
	from files a, b and c.

-p::
	Send results to standard output instead of overwriting
	`<current-file>`.

-q::
	Quiet;  do  not  warn about conflicts.


EXAMPLES
--------

git merge-file README.my README README.upstream::

	combines the changes of README.my and README.upstream since README,
	tries to merge them and writes the result into README.my.

git merge-file -L a -L b -L c tmp/a123 tmp/b234 tmp/c345::

	merges tmp/a123 and tmp/c345 with the base tmp/b234, but uses labels
	`a` and `c` instead of `tmp/a123` and `tmp/c345`.


Author
------
Written by Johannes Schindelin <johannes.schindelin@gmx.de>


Documentation
--------------
Documentation by Johannes Schindelin and the git-list <git@vger.kernel.org>,
with parts copied from the original documentation of RCS merge.

GIT
---
Part of the linkgit:git[7] suite
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