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#18681
The Linux cp command has bugs
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Message #26 received at 18681 <at> debbugs.gnu.org (full text, mbox):
Hi Assaf!
Thank you for your quick response!
There is always multiple ways to do things. The git tool has a diff tool built in that makes file comparison easy.
I have run across multiple times that copying one tree over another is desirable.
In another bug message thread, we found that the cause was cp alias to 'cp -i' for root user was the actual cause.
This still left the incorrect operation of the interactive operation when both -i and -f is used.
I think that in some cases the need of override the '-i' with '-f' maybe very desirable. So maybe having the '-f' cancel or override the '-i' operation might be a good change.
Thanks!
Mike
-----Original Message-----
From: Assaf Gordon [mailto:assafgordon <at> gmail.com]
Sent: Friday, October 10, 2014 12:14 PM
To: Polehn, Mike A; 18681 <at> debbugs.gnu.org
Subject: Re: bug#18681: The Linux cp command has bugs
Hello Mike,
On 10/10/2014 01:25 PM, Polehn, Mike A wrote:>
> Problem need to copy a tree of 1000s of files to another directory
> that is a git directory that has a whole bunch of additional build
> files, so diff between the directories will not do any good.
>
This is slightly off-topic, but if you want to compare only files managed by git (ignoring other files in current directory), perhaps the following would help:
# Download and extract the tarball
wget -q http://dpdk.org/browse/dpdk/snapshot/dpdk-1.7.1.tar.gz
tar -xf dpdk-1.7.1.tar.gz
# Clone the git repo with specific branch, checkout the relevant branch
# (or go to an existing checked-out repository directory)
git clone git://dpdk.org/dpdk
cd dpdk
git checkout -b map_v1.7.1 v1.7.1
# For each file managed by git (with 'git ls'),
# compare it to the corresponding file in the other directory:
git ls -0 | xargs -0 -I% diff -q % ../dpdk-1.7.1/%
Regards,
-gordon
This bug report was last modified 10 years and 212 days ago.
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