• Johannes Schindelin's avatar
    Fix build with core.autocrlf=true · 00ddc9d1
    Johannes Schindelin authored
    On Windows, the default line endings are denoted by a Carriage Return
    byte followed by a Line Feed byte, while Linux and MacOSX use a single
    Line Feed byte to denote a line ending.
    
    To help with this situation, Git introduced several mechanisms over the
    last decade, most prominently the `core.autocrlf` setting.
    
    Sometimes, however, a single setting is incorrect, e.g. when certain
    files in the source code are to be consumed by software that can handle
    only LF line endings, while other files can use whatever is appropriate
    for the current platform.
    
    To allow for that, Git added the `eol` option to its .gitattributes
    handling, expecting every user of Git to mark their source code
    appropriately.
    
    Bash assumes that line-endings of scripts are denoted by a single Line
    Feed byte. Therefore, shell scripts in Git's source code are one example
    where that `eol=lf` option is *required*.
    
    When generating common-cmds.h, the Unix tools we use generally operate on
    the assumption that input and output deliminate their lines using LF-only
    line endings. Consequently, they would happily copy the CR byte verbatim
    into the strings in common-cmds.h, which in turn makes the C preprocessor
    barf (that interprets them as MacOS-style line endings). Therefore, we
    have to mark the input files as LF-only: command-list.txt and
    Documentation/git-*.txt.
    
    Quite a bit belatedly, this patch brings Git's own source code in line
    with those expectations by setting those attributes to allow for a
    correct build even when core.autocrlf=true.
    
    This patch can be validated even on Linux, by using this cadence:
    
    	git config core.autocrlf true
    	rm .git/index && git stash
    	make -j15 DEVELOPER=1
    Signed-off-by: Johannes Schindelin's avatarJohannes Schindelin <johannes.schindelin@gmx.de>
    Reviewed-by: default avatarJonathan Nieder <jrnieder@gmail.com>
    Signed-off-by: default avatarJunio C Hamano <gitster@pobox.com>
    00ddc9d1
.gitattributes 249 Bytes