[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#61767: install: options --compare (-C) and --preserve-timestamps are
bug#61767: install: options --compare (-C) and --preserve-timestamps are mutually exclusive
Fri, 24 Feb 2023 17:14:24 +0100
% install -C -p x y
install: options --compare (-C) and --preserve-timestamps are mutually exclusive
Try 'install --help' for more information.
% install --help
Usage: install [OPTION]... [-T] SOURCE DEST
or: install [OPTION]... SOURCE... DIRECTORY
or: install [OPTION]... -t DIRECTORY SOURCE...
or: install [OPTION]... -d DIRECTORY...
This install program copies files (often just compiled) into destination
locations you choose. If you want to download and install a ready-to-use
package on a GNU/Linux system, you should instead be using a package manager
like yum(1) or apt-get(1).
In the first three forms, copy SOURCE to DEST or multiple SOURCE(s) to
the existing DIRECTORY, while setting permission modes and owner/group.
In the 4th form, create all components of the given DIRECTORY(ies).
Mandatory arguments to long options are mandatory for short options too.
--backup[=CONTROL] make a backup of each existing destination file
-b like --backup but does not accept an argument
-C, --compare compare each pair of source and destination files, and
in some cases, do not modify the destination at all
-d, --directory treat all arguments as directory names; create all
components of the specified directories
-D create all leading components of DEST except the last,
or all components of --target-directory,
then copy SOURCE to DEST
-g, --group=GROUP set group ownership, instead of process' current group
-m, --mode=MODE set permission mode (as in chmod), instead of rwxr-xr-x
-o, --owner=OWNER set ownership (super-user only)
-p, --preserve-timestamps apply access/modification times of SOURCE files
to corresponding destination files
-s, --strip strip symbol tables
--strip-program=PROGRAM program used to strip binaries
-S, --suffix=SUFFIX override the usual backup suffix
-t, --target-directory=DIRECTORY copy all SOURCE arguments into DIRECTORY
-T, --no-target-directory treat DEST as a normal file
-v, --verbose print the name of each directory as it is created
--preserve-context preserve SELinux security context
-Z set SELinux security context of destination
file and each created directory to default type
--context[=CTX] like -Z, or if CTX is specified then set the
SELinux or SMACK security context to CTX
--help display this help and exit
--version output version information and exit
The backup suffix is '~', unless set with --suffix or SIMPLE_BACKUP_SUFFIX.
The version control method may be selected via the --backup option or through
the VERSION_CONTROL environment variable. Here are the values:
none, off never make backups (even if --backup is given)
numbered, t make numbered backups
existing, nil numbered if numbered backups exist, simple otherwise
simple, never always make simple backups
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
Full documentation <https://www.gnu.org/software/coreutils/install>
or available locally via: info '(coreutils) install invocation'
% install --version
install (GNU coreutils) 8.32
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by David MacKenzie.
I see no explanation there why these options should be mutually exclusive.
(RTFS did not reveal any insight either.)
If the error message is unnecessary, please remove it.
Otherwise, please provide an explanation why and possible workarounds.
What I want to achieve is to preserve timestamps and to avoid doing extra work.
Both goals seem rather natural, and I see no reason why they should not be
(In fact it seems "-p" should make it *easier* to implement "-C" as
timestamps will compare equal when nothing's changed. Then again,
need_copy() doesn't seem to care about times at all, so why should
it be incompatible with "-p"?)
|[Prev in Thread]
||[Next in Thread]|
- bug#61767: install: options --compare (-C) and --preserve-timestamps are mutually exclusive,
Frank Heckenbach <=