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Re: [Gnu-arch-users] What's the difference bitween 'junk' and 'backup' ?

From: Aaron Bentley
Subject: Re: [Gnu-arch-users] What's the difference bitween 'junk' and 'backup' ?
Date: Thu, 22 Apr 2004 21:15:07 -0400
User-agent: Mozilla Thunderbird 0.5 (X11/20040306)

Tez Kamihira wrote:

I'm writing a Japanese document of GNU arch by my own words.

I have a question.

I understood the difference between 'precious' and other
non-source groups. There are 4 commands that call
arch_copy_project_tree() in ./src/tla/libarch/copy-project-tree.c.
those are 'apply-delta', 'join-branch', 'sync-tree', and 'update'
with --dist option. They preserve precious files in the distination
trees as well as source group.

But I didn't understand the difference between 'junk' and 'backup'
groups even if I analizied tla's source code.

What is it ?

The docs in the default =tagging-method are pretty good:

# category:      copy locally?       safe to clobber?      archive?
# junk           no                  yes                   no
# backup         no                  no                    no
# precious       yes                 no                    no
# source         yes                 no                    yes

So the difference between backup and junk is that junk files are considered "safe to clobber", and may be overwritten or deleted at any time.


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