Yuya Nishihara <yuya@tcha.org> [Sun, 15 Mar 2015 18:58:56 +0900] rev 31585
similar: sort files not by object id but by path for stable result
Perhaps the original implementation would want to sort added/removed files
alphabetically, but actually it did sort fctx objects by memory location.
This patch removes the use of set()s in order to preserve the order of
added/removed files. addedfiles.remove() becomes quadratic, but its cost
appears not dominant. Anyway, the quadratic behavior will be eliminated by
the next patch.
Benchmark with 50k added/removed files, on tmpfs:
$ mkdir src
$ for n in `seq 0 49`; do
> mkdir `printf src/%02d $n`
> done
$ for n in `seq 0 49999`; do
> f=`printf src/%02d/%05d $(($n/1000)) $n`
> dd if=/dev/urandom of=$f bs=8k count=1 status=none
> done
$ hg ci -qAm 'add 50k files of random content'
$ mv src dest
$ hg addremove --dry-run --time -q
original: real 16.550 secs (user 15.000+0.000 sys 1.540+0.000)
this patch: real 16.730 secs (user 15.280+0.000 sys 1.440+0.000)
Jun Wu <quark@fb.com> [Sun, 12 Mar 2017 01:34:17 -0800] rev 31584
debugfsinfo: print fstype information
Since we have osutil.getfstype, it'll be handy if "debugfsinfo" prints it.
Jun Wu <quark@fb.com> [Sun, 12 Mar 2017 01:03:23 -0800] rev 31583
util: enable hardlink for copyfile
This patch removes the global variable "allowhardlinks" that disables
hardlink in all cases, so hardlink gets enabled if the filesystem type is
whitelisted.
Third party extensions wanting to enable hardlink support unconditionally
can replace "_hardlinkfswhitelist.__contains__".
Jun Wu <quark@fb.com> [Sun, 12 Mar 2017 00:26:20 -0800] rev 31582
hghave: add a check about whitelisted filesystem that supports hardlink
This is needed for the test added by the next patch.