[darcs-users] some darcs comments from Johan Tibell
Trent W. Buck
twb at cybersource.com.au
Fri Dec 25 11:47:18 UTC 2009
Eric Kow <kowey at darcs.net> writes:
> he [wants] make-me-a-branch command [to be] near instantaneousness.
Doing the operation on the fileserver (instead of over NFS), branching
is fast enough for me. With the Darcs repository:
$ time ssh fs darcs get --lazy $PWD $PWD+issue1234
Copying pristine 286/508 : dist-v.sh
$ du -sh $PWD $PWD+issue1234
fs runs Fedora Core 3 and has two SATA disks in a software RAID 1 array.
I can only assume that when people complain about slow branch creation
- they're *really* impatient;
- they're using NFS on 100baseT (like me);
- they're still using old-fashioned-inventory repos;
- they're not using --lazy for branches;
- they're not using hard linking; or
- they're using HUGE repositories.
Of course, darcs get is pretty slow over NFS... but so is rm -rf:
0m20.646s darcs get --lazy $PWD $PWD+issue1234
0m4.137s time rm -rf $PWD+issue1234
> Johan Tibell writes:
>> $ git diff master..integration # All changes taken together to get an overview
>> $ git diff integration~2..integration~3 # Patch 3 (newest)
Isn't the latter equivalent to the simpler "git show integration~3"?
>> Random other things I miss:
>> * Being able to easily refer to any patch -- typing a regex the
>> matches the commit messages uniquely is a pain. So is counting
>> backwards (i.e. --last=54.)
What's git's "easy" way to uniquely refer to a patch? Hashes? Darcs
has --match 'hash XXX'.
>> * Incrementally building up the next commit using a staging area.
For haskell libraries, --builddir /var/tmp/staging ?
>> * Using the pager when it makes sense.
>> * Not when typing "darcs help". You want the help text to stay when
>> you're looking for command line flags to give to a command! The
>> pager makes the help text disappear when you're supposed to type
>> the command.
I think this is just git setting $LESS to FSR (unless it's already set
to something else). The help text "disappears" because your terminal
emulator has been configured that way. Try ^A:altscreen off in GNU
Screen -- I dunno about other terminals. LESS=F should help if you use
>> * When looking through the change log (darcs changes.) You rarely
>> want all the commits to scroll by and see the oldest commit!
+1, or http://bugs.darcs.net/issue1431
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