URL:
<http://savannah.gnu.org/bugs/?33823>
Summary: 'wget -c -N' ignores timestamps
Project: GNU Wget
Submitted by: nok
Submitted on: Sa 23 Jul 2011 10:30:17 CEST
Category: Program Logic
Severity: 3 - Normal
Priority: 5 - Normal
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 1.12
Operating System: GNU/Linux
Reproducibility: Every Time
Fixed Release: None
Planned Release: None
Regression: Yes
Work Required: None
Patch Included: None
_______________________________________________________
Details:
Hello,
http://bugs.debian.org/402001
--8<--
in my script /usr/share/mplayer/scripts/binary_codecs.sh
I would like to use 'wget' to keep some files up-to-date
Consider those commands
$ cd /tmp
$ MYSITE='http://people.debian.org/~mennucc1/mplayer'
$ touch -d '1 Dec 1970' mirrors
$ ls -l mirrors
-rw-r--r-- 1 debdev debian 0 1970-12-01 00:00 mirrors
$ wget -v -c -N $MYSITE/mirrors
--12:13:59-- http://people.debian.org/~mennucc1/mplayer/mirrors
=> `mirrors'
Resolving people.debian.org... 192.25.206.10
Connecting to people.debian.org|192.25.206.10|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 336 [text/plain]
Remote file is newer, retrieving.
--12:14:00-- http://people.debian.org/~mennucc1/mplayer/mirrors
=> `mirrors'
Reusing existing connection to people.debian.org:80.
HTTP request sent, awaiting response... 200 OK
Length: 336 [text/plain]
100%[====================================================>] 336
--.--K/s
12:14:00 (35.60 MB/s) - `mirrors' saved [336/336]
^^^^^^^^^^^^
So far all is fine. But now look at this:
$ touch -d '1 Dec 1970' mirrors
$ ls -l mirrors
-rw-r--r-- 1 debdev debian 336 Dec 1 1970 mirrors
$ wget -v -c -N $MYSITE/mirrors
--12:15:16-- http://people.debian.org/~mennucc1/mplayer/mirrors
=> `mirrors'
Resolving people.debian.org... 192.25.206.10
Connecting to people.debian.org|192.25.206.10|:80... connected.
HTTP request sent, awaiting response... 416 Requested Range Not Satisfiable
The file is already fully retrieved; nothing to do.
^^^^^^^^^^^
Argh! 'wget' checks the size but not the timestamp!
Instead I checked that '-N' alone works:
$ wget -v -N $MYSITE/mirrors
--12:16:24-- http://people.debian.org/~mennucc1/mplayer/mirrors
=> `mirrors'
Resolving people.debian.org... 192.25.206.10
Connecting to people.debian.org|192.25.206.10|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 336 [text/plain]
Remote file is newer, retrieving.
--12:16:25-- http://people.debian.org/~mennucc1/mplayer/mirrors
=> `mirrors'
Reusing existing connection to people.debian.org:80.
HTTP request sent, awaiting response... 200 OK
Length: 336 [text/plain]
100%[====================================================>] 336
--.--K/s
12:16:25 (32.04 MB/s) - `mirrors' saved [336/336]
^^^^^^^^^^^^^^
and trying again
$ wget -v -N $MYSITE/mirrors
--12:16:29-- http://people.debian.org/~mennucc1/mplayer/mirrors
=> `mirrors'
Resolving people.debian.org... 192.25.206.10
Connecting to people.debian.org|192.25.206.10|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 336 [text/plain]
Server file no newer than local file `mirrors' -- not retrieving.
^^^^^^^^^^^^
--8<--
and another comment from the bug (wget 1.12)
--8<--
I've run into a similar problem. I want to mirror a site where not
everything has timestamps. If I select -N then all files without
timestamps will be downloaded again and again. If I select -c then
files with timestamps that have changed will be continued leading to
broken files.
I would like to tell wget to use -c as fallback to -N.
--8<--
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?33823>
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