URL:
<https://savannah.gnu.org/bugs/?61755>
Summary: --unlink doesn't
Project: GNU Wget
Submitted by: None
Submitted on: Mon 03 Jan 2022 03:26:41 AM UTC
Category: Program Logic
Severity: 3 - Normal
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Originator Name: /df
Originator Email: [email protected]
Open/Closed: Open
Release: trunk
Discussion Lock: Any
Operating System: GNU/Linux
Reproducibility: None
Fixed Release: None
Planned Release: None
Regression: None
Work Required: None
Patch Included: None
_______________________________________________________
Details:
The '--unlink' option is described like this:
--unlink
Force Wget to unlink file instead of clobbering existing file.
This
option is useful for downloading to the directory with hardlinks.
So with existing 'file', 'wget --unlink ... o file' should work like 'unlink
file; 'wget ... o file', surely. It doesn't in the example below, which could
be disastrous if relying on the documented behaviour.
$ wget --version
GNU Wget 1.21 built on linux-gnu.
-cares +digest -gpgme +https +ipv6 +iri +large-file -metalink +nls
+ntlm +opie +psl +ssl/openssl
Wgetrc:
/etc/wgetrc (system)
Locale:
/usr/share/locale
Compile:
gcc -DHAVE_CONFIG_H -DSYSTEM_WGETRC="/etc/wgetrc"
-DLOCALEDIR="/usr/share/locale" -I. -I../../src -I../lib
-I../../lib -Wdate-time -D_FORTIFY_SOURCE=2 -DHAVE_LIBSSL -DNDEBUG
-g -O2 -fdebug-prefix-map=/build/wget-GywCSU/wget-1.21=.
-fstack-protector-strong -Wformat -Werror=format-security
-DNO_SSLv2 -D_FILE_OFFSET_BITS=64 -g -Wall
Link:
gcc -DHAVE_LIBSSL -DNDEBUG -g -O2
-fdebug-prefix-map=/build/wget-GywCSU/wget-1.21=.
-fstack-protector-strong -Wformat -Werror=format-security
-DNO_SSLv2 -D_FILE_OFFSET_BITS=64 -g -Wall -Wl,-Bsymbolic-functions
-Wl,-z,relro -Wl,-z,now -lpcre2-8 -luuid -lidn2 -lssl -lcrypto -lz
-lpsl ftp-opie.o openssl.o http-ntlm.o ../lib/libgnu.a
Copyright (C) 2015 Free Software Foundation, Inc.
Licence GPLv3+: GNU GPL version 3 or later
<http://www.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.
Originally written by Hrvoje Niksic <[email protected]>.
Please send bug reports and questions to <[email protected]>.
$ echo > foo
$ ln foo foobar
$ ls -l foo*
-rw-rw-r-- 2 df df 1 Jan 3 03:10 foo
-rw-rw-r-- 2 df df 1 Jan 3 03:10 foobar
$ wget --unlink -O foobar "$url"
...
Length: 11372 (11K) [image/png]
...
2022-01-03 03:11:47 (473 B/s) - ‘foobar’ saved [11372/11372]
$ ls -l foo*
-rw-rw-r-- 2 df df 11372 Oct 1 2012 foo
-rw-rw-r-- 2 df df 11372 Oct 1 2012 foobar
$
Expected result:
$ ls -l foo*
-rw-rw-r-- 2 df df 1 Jan 3 03:10 foo
-rw-rw-r-- 2 df df 11372 Oct 1 2012 foobar
$
_______________________________________________________
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