doc: fix texinfo files attributes on Windows
While installing git on Windows, the user is prompted by a dialog
"Configuring the line ending conversions" to select the value for
the git property "core.autocrlf". The default choice proposed by
the installer is "Checkout Windows-style, commit Unix-style line
endings", that corresponds to "core.autocrlf=true".
Even if the dialog provides technical explanation of the different
choices, most users will blindly accept the default proposal.
With "core.autocrlf=true" git will convert to DOS mode all the
text files during "clone" (so can be edited by any crap Windows
tool) and convert back to UNIX mode during "push" operation.
While this is safe enough for C and TCL files, it breaks the
texinfo files.
The trailing '@' character used for command continuation in
https://www.gnu.org/software/texinfo/manual/texinfo/html_node/Def-Cmd-Continuation-Lines.html
does not accept being followed by CR+LF (DOS mode), generating a
build error. Same error can be replicated on Linux by passing the
file doc/openocd.texi through "unix2dos" command.
Tentative to fix this has already been proposed in
http://openocd.zylin.com/5294
http://openocd.zylin.com/5413
by breaking the command continuation syntax, which is a no go.
The correct fix would require to force/suggest all the Windows
users to get rid of the crap DOS mode, but this could have side
effects.
To workaround the issue, add a .gitattributes file in the doc
folder, specifying a local conversion attribute for the files .txt
and .texi in the doc folder and overriding the eventual incorrect
global value of "core.autocrlf" selected during installation.
The local attribute "text eol=lf" is equivalent to the global one
"core.autocrlf=input".
Change-Id: I468a8f8125b6bc4628fce6c66eb082824ba3413f
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/5499
Tested-by: jenkins
Reviewed-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
2020-03-08 10:40:05 -05:00
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# Avoid DOS conversion of texinfo files during git clone
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