Resolves: #1861108 - cp: default to --reflink=auto
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Kamil Dudka
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fe6d386d13
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5d08d14bbc
119
coreutils-8.32-cp-reflink-auto.patch
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119
coreutils-8.32-cp-reflink-auto.patch
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From 76126e2831580d0df20530f4d6f72189bd4f0b9a Mon Sep 17 00:00:00 2001
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From: Paul Eggert <eggert@cs.ucla.edu>
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Date: Thu, 18 Jun 2020 22:16:24 -0700
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Subject: [PATCH] cp: default to COW
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Likewise for ‘install’. Proposed in Bug#24400, and long past due.
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* NEWS:
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* doc/coreutils.texi (cp invocation):
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* src/copy.h (enum Reflink_type): Document this.
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* src/cp.c (cp_option_init):
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* src/install.c (cp_option_init): Implement this.
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Upstream-commit: 25725f9d41735d176d73a757430739fb71c7d043
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Signed-off-by: Kamil Dudka <kdudka@redhat.com>
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---
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doc/coreutils.texi | 19 ++++++++++++-------
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src/copy.h | 4 ++--
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src/cp.c | 2 +-
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src/install.c | 2 +-
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4 files changed, 16 insertions(+), 11 deletions(-)
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diff --git a/doc/coreutils.texi b/doc/coreutils.texi
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index 02e0c1c..2382a16 100644
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--- a/doc/coreutils.texi
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+++ b/doc/coreutils.texi
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@@ -8854,12 +8854,14 @@ The @var{when} value can be one of the following:
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@table @samp
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@item always
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-The default behavior: if the copy-on-write operation is not supported
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+If the copy-on-write operation is not supported
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then report the failure for each file and exit with a failure status.
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+Plain @option{--reflink} is equivalent to @option{--reflink=when}.
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@item auto
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If the copy-on-write operation is not supported then fall back
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to the standard copy behavior.
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+This is the default if no @option{--reflink} option is given.
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@item never
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Disable copy-on-write operation and use the standard copy behavior.
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@@ -8868,12 +8870,6 @@ Disable copy-on-write operation and use the standard copy behavior.
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This option is overridden by the @option{--link}, @option{--symbolic-link}
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and @option{--attributes-only} options, thus allowing it to be used
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to configure the default data copying behavior for @command{cp}.
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-For example, with the following alias, @command{cp} will use the
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-minimum amount of space supported by the file system.
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-
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-@example
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-alias cp='cp --reflink=auto --sparse=always'
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-@end example
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@item --remove-destination
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@opindex --remove-destination
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@@ -8918,6 +8914,15 @@ This is useful in creating a file for use with the @command{mkswap} command,
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since such a file must not have any holes.
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@end table
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+For example, with the following alias, @command{cp} will use the
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+minimum amount of space supported by the file system.
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+(Older versions of @command{cp} can also benefit from
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+@option{--reflink=auto} here.)
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+
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+@example
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+alias cp='cp --sparse=always'
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+@end example
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+
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@optStripTrailingSlashes
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@item -s
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diff --git a/src/copy.h b/src/copy.h
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index 874d6f7..a0ad494 100644
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--- a/src/copy.h
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+++ b/src/copy.h
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@@ -46,10 +46,10 @@ enum Sparse_type
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/* Control creation of COW files. */
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enum Reflink_type
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{
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- /* Default to a standard copy. */
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+ /* Do a standard copy. */
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REFLINK_NEVER,
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- /* Try a COW copy and fall back to a standard copy. */
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+ /* Try a COW copy and fall back to a standard copy; this is the default. */
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REFLINK_AUTO,
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/* Require a COW copy and fail if not available. */
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diff --git a/src/cp.c b/src/cp.c
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index 0193df8..9e7ad14 100644
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--- a/src/cp.c
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+++ b/src/cp.c
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@@ -796,7 +796,7 @@ cp_option_init (struct cp_options *x)
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x->move_mode = false;
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x->install_mode = false;
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x->one_file_system = false;
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- x->reflink_mode = REFLINK_NEVER;
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+ x->reflink_mode = REFLINK_AUTO;
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x->preserve_ownership = false;
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x->preserve_links = false;
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diff --git a/src/install.c b/src/install.c
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index 4ab44a6..aef16ca 100644
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--- a/src/install.c
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+++ b/src/install.c
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@@ -264,7 +264,7 @@ cp_option_init (struct cp_options *x)
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{
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cp_options_default (x);
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x->copy_as_regular = true;
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- x->reflink_mode = REFLINK_NEVER;
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+ x->reflink_mode = REFLINK_AUTO;
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x->dereference = DEREF_ALWAYS;
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x->unlink_dest_before_opening = true;
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x->unlink_dest_after_failed_open = false;
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--
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2.25.4
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@ -1,7 +1,7 @@
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Summary: A set of basic GNU tools commonly used in shell scripts
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Name: coreutils
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Version: 8.32
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Release: 10%{?dist}
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Release: 11%{?dist}
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License: GPLv3+
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Url: https://www.gnu.org/software/coreutils/
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Source0: https://ftp.gnu.org/gnu/%{name}/%{name}-%{version}.tar.xz
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@ -19,6 +19,9 @@ Patch1: coreutils-8.32-ls-removed-dir.patch
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# du: simplify leaf optimization for XFS (#1823247)
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Patch2: coreutils-8.32-leaf-opt-xfs.patch
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# cp: default to --reflink=auto (#1861108)
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Patch3: coreutils-8.32-cp-reflink-auto.patch
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# disable the test-lock gnulib test prone to deadlock
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Patch100: coreutils-8.26-test-lock.patch
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@ -275,6 +278,9 @@ rm -f $RPM_BUILD_ROOT%{_infodir}/dir
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%license COPYING
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%changelog
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* Thu Jul 30 2020 Kamil Dudka <kdudka@redhat.com> - 8.32-11
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- cp: default to --reflink=auto (#1861108)
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* Mon Jul 27 2020 Fedora Release Engineering <releng@fedoraproject.org>
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- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
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