#203: Add shallow clone to hg ---------------------------+------------------------------------------------ Reporter: eric9 | Owner: eric9 Type: defect | Status: new Priority: minor | Milestone: Component: GetComponents | Version: Keywords: | ---------------------------+------------------------------------------------ Git and darcs offer a shallow clone option (--depth 1 for git and --lazy for darcs). Hg can accomplish a similar thing by running hg clone -r tip URL. This should be implemented following the same rules as shallow clones for git and darcs.
#203: Add shallow clone to hg ----------------------------+----------------------------------------------- Reporter: eric9 | Owner: eric9 Type: defect | Status: new Priority: minor | Milestone: Component: GetComponents | Version: Resolution: | Keywords: ----------------------------+-----------------------------------------------
Comment (by eschnett):
Shallow cloning is a performance improvement only. I would wait with implementing this until we have experience in parallel checkouts, which can conceivably improve speed by an order of magnitude.
#203: Add shallow clone to hg ----------------------------+----------------------------------------------- Reporter: eric9 | Owner: eric9 Type: defect | Status: new Priority: minor | Milestone: Component: GetComponents | Version: Resolution: | Keywords: ----------------------------+-----------------------------------------------
Comment (by knarf):
Speed is not the only advantage of shallow clones. Smaller repository size is also something worth to consider.
#203: Add shallow clone to hg ----------------------------+----------------------------------------------- Reporter: eric9 | Owner: eric9 Type: defect | Status: accepted Priority: minor | Milestone: Component: GetComponents | Version: Resolution: | Keywords: ----------------------------+----------------------------------------------- Changes (by eric9):
* status: new => accepted
Comment:
I was actually incorrect about this. I misread the documentation of hg; -r tip will actually perform a full clone. It seems hg does not currently support shallow clones, but they are looking into it.
On another note, the parallel checkout (using -p) has been quite stable for me lately, and it does significantly reduce checkout/update times. I am considering making parallel mode the default if the user's Perl supports threads, or at least letting users decide how many threads to use (currently -p is locked at 4 threads).
#203: Add shallow clone to hg ----------------------------+----------------------------------------------- Reporter: eric9 | Owner: eric9 Type: defect | Status: accepted Priority: minor | Milestone: Component: GetComponents | Version: Resolution: | Keywords: ----------------------------+-----------------------------------------------
Comment (by eschnett):
I would advertise the feature first, and wait for a few months' worth of bug reports, before making this the default.
#203: Add shallow clone to hg ----------------------------+----------------------------------------------- Reporter: eric9 | Owner: eric9 Type: defect | Status: closed Priority: minor | Milestone: Component: GetComponents | Version: Resolution: wontfix | Keywords: ----------------------------+----------------------------------------------- Changes (by knarf):
* status: accepted => closed * resolution: => wontfix
trac@lists.einsteintoolkit.org
-
Einstein Toolkit