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| author | Kamil Dudka <kdudka@redhat.com> | 2009-02-17 13:16:54 +0100 |
|---|---|---|
| committer | Jim Meyering <meyering@redhat.com> | 2009-02-17 14:12:44 +0100 |
| commit | dac5f12c6ed1225bfb8043d9ff7227d29439a955 (patch) | |
| tree | d736baa51d46a7c6b53fe93aed03acb12c73f27e /doc | |
| parent | 26d3d090bd08ff36b1f66af8d4b7974c5d5b6a95 (diff) | |
| download | coreutils-dac5f12c6ed1225bfb8043d9ff7227d29439a955.tar.gz | |
install: add --compare (-C) option to install file only when necessary
* src/install.c (have_same_content): New function to compare files
content.
(extra_mode): New function checking for non-permission bits in mode.
(need_copy): New function to check if copy is necessary.
(main): Handle new option --compare (-C).
(copy_file): Skip file copying if not necessary.
(usage): Show new option --compare (-C) in --help.
* tests/install/install-C: Basic tests for install --compare (-C).
* tests/install/install-C-root: Tests requiring root privileges.
* tests/install/install-C-selinux: Tests requiring SELinux.
* tests/Makefile.am: Add new tests for install --compare (-C).
* doc/coreutils.texi: Document new install option --compare (-C).
* NEWS: Mention the change.
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/coreutils.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 57497e960..ba1e74e30 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -2123,6 +2123,14 @@ The program accepts the following options. Also see @ref{Common options}. @table @samp +@item -C +@itemx --compare +@opindex -C +@opindex --compare +Compare each pair of source and destination files, and if the destination has +identical content and any specified owner, group, permissions, and possibly +SELinux context, then do not modify the destination at all. + @item -c @itemx --crown-margin @opindex -c |