1 # ensure LF endings on all checkouts
2 configure.ac crlf=input
3 config.rpath crlf=input
4 configure.host crlf=input
5 mkinstalldirs crlf=input
8 # ensure native line endings on checkout
18 # don't do anything to line-endings. Let CRLFs go into the repo, and CRLF on checkout
27 # The ideal situation would be to do no EOL normalization. Each file
28 # would have a default EOL, and tools on Windows and Linux would handle
31 # We're not in the ideal world. A popular editor on Windows (possibly
32 # Visual Studio) silently introduces EOL corruption -- it displays an
33 # LF-file normally, but any newly added lines have CRLF. On Linux,
34 # Emacs and versions of VI handle LF-files and CRLF-files properly.
35 # However, emacs doesn't like files with both LF and CRLF EOLs. Editing
36 # the file without additional action will increase the EOL corruption
39 # Another vector for mixed EOLs is scripts. We mostly don't have scripts
40 # that add new lines -- so we rarely see this. However, one major event
41 # in the tree was the addition of copyright headers using a script. That
42 # script introduced EOL corruption.
44 # Any automated EOL normalization of files already in the repository will
45 # cause difficulties in traversing histories, assigning blame, etc. So, we
46 # don't want to change what's in the repository significantly, even if it
51 # a) we ensure that there's no further corruption of LF-files. So, we use
52 # git's 'crlf' attribute on those files to ensure that things are fine
53 # when we work on Windows. We could use 'crlf=input', but it doesn't buy
54 # us much -- we might as well be working with consistent EOLs for files in
55 # working directories as well as in the repository
57 # b) if the file already of CRLFs, we don't do any normalization. We use '-crlf'
58 # so that git doesn't do any EOL-conversion of the file. As I said, this
59 # is mostly harmless on Linux. We can't mark these files as 'crlf' or use
60 # the new (git 1.7.2) 'eol=crlf' attribute, since it changes the contents
61 # _inside_ the repository [1], and hence makes history traversal annoying.
62 # So, we live with occasional EOL corruption.
64 # c) We can handle mixed-EOL files on a case-by-case basis, converting them to
65 # LF- or CRLF-files based on which causes fewer lines to change
67 # d) We try to ensure no further headaches, by declaring EOL normalization on
68 # code files, and Unix-flavoured files, like shell-scripts, makefiles, etc.
70 # [1] GIT use LFs as the normalized internal representation.