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The majority of the running time of this script tends to be spent in
running git blame on source files touched by patches under review.
By introducing a git blame output cache, some of the git blame commands
don't have to re-run, and the blame information can be retrieved from a
cache.
I've observed that in a typical run matching patches available for
review with potential reviewers, this speeds up the script's running
time by a factor of about 2.5x.
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Always use `items()` and introduce extra `list(...)` call when needed.
Differential Revision: https://reviews.llvm.org/D56257
llvm-svn: 350312
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Make sure all print statements are compatible with Python 2 and Python3 using
the `from __future__ import print_function` statement.
Differential Revision: https://reviews.llvm.org/D56249
llvm-svn: 350307
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This enables a few requested improvements on the original review of this
script at https://reviews.llvm.org/D46192.
This introduces 2 new command line options:
* --email-report: This option enables specifying who to email the generated
report to. This also enables not sending any email and only printing out
the report on stdout by not specifying this option on the command line.
* --sender: this allows specifying the email address that will be used in
the "From" email header.
I believe that with these options the script starts having the basic
features needed to run it well on a regular basis for a group of
developers.
Differential Revision: https://reviews.llvm.org/D47930
llvm-svn: 335948
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... by using unicode instead of byte strings where non-ascii strings can be
formatted in.
llvm-svn: 334098
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At the last EuroLLVM, I gave a lightning talk about code review
statistics on Phabricator reviews and what we could derive from that
to try and reduce waiting-for-review bottlenecks. (see
https://llvm.org/devmtg/2018-04/talks.html#Lightning_2).
One of the items I pointed to is a script we've been using internally
for a little while to try and match open Phabricator reviews to people
who might be able to review them well. I received quite a few requests
to share that script, so here it is.
Warning: this is prototype quality!
The script uses 2 similar heuristics to try and match open reviews with
potential reviewers:
If there is overlap between the lines of code touched by the
patch-under-review and lines of code that a person has written, that
person may be a good reviewer.
If there is overlap between the files touched by the patch-under-review
and the source files that a person has made changes to, that person may
be a good reviewer.
The script provides a percentage for each of the above heuristics and
emails a summary. For example, a summary I received a few weeks ago
from the script is the following:
SUMMARY FOR kristof.beyls@arm.com (found 8 reviews):
[3.37%/41.67%] https://reviews.llvm.org/D46018 '[GlobalISel][IRTranslator] Split aggregates during IR translation' by Amara Emerson
[0.00%/100.00%] https://reviews.llvm.org/D46111 '[ARM] Enable misched for R52.' by Dave Green
[0.00%/50.00%] https://reviews.llvm.org/D45770 '[AArch64] Disable spill slot scavenging when stack realignment required.' by Paul Walker
[0.00%/40.00%] https://reviews.llvm.org/D42759 '[CGP] Split large data structres to sink more GEPs' by Haicheng Wu
[0.00%/25.00%] https://reviews.llvm.org/D45189 '[MachineOutliner][AArch64] Keep track of functions that use a red zone in AArch64MachineFunctionInfo and use that instead of checking for noredzone in the MachineOutliner' by Jessica Paquette
[0.00%/25.00%] https://reviews.llvm.org/D46107 '[AArch64] Codegen for v8.2A dot product intrinsics' by Oliver Stannard
[0.00%/12.50%] https://reviews.llvm.org/D45541 '[globalisel] Update GlobalISel emitter to match new representation of extending loads' by Daniel Sanders
[0.00%/6.25%] https://reviews.llvm.org/D44386 '[x86] Introduce the pconfig/enclv instructions' by Gabor Buella
The first percentage in square brackets is the percentage of lines in
the patch-under-review that changes lines that I wrote. The second
percentage is the percentage of files that I made at least some
changes to out of all of the files touched by the patch-under-review.
Both the script and the heuristics are far from perfect, but I've
heard positive feedback from the few colleagues the script has been
sending a summary to every day - hearing that this does help them to
quickly find patches-under-review they can help to review.
The script takes quite some time to run (I typically see it running
for 2 to 3 hours on weekdays when it gets started by a cron job early
in the morning). There are 2 reasons why it takes a long time:
The REST api into Phabricator isn't very efficient, i.e. a lot of
uninteresting data needs to be fetched. The script tries to reduce this
overhead partly by caching info it has fetched on previous runs, so as
to not have to refetch lots of Phabricator state on each run.
The script uses git blame to find for each line of code in the patch who
wrote the original line of code being altered. git blame is
sloooowww....
Anyway - to run this script:
First install a virtualenv as follows (using Python2.7 - Python3 is
almost certainly not going to work at the moment):
$ virtualenv venv
$ . ./venv/bin/activate
$ pip install Phabricator
Then to run the script, looking for open reviews that could be done by
X.Y@company.com, run (in the venv):
$ python ./find_interesting_reviews.py X.Y@company.com
Please note that "X.Y@company.com" needs to be the exact email address
(capitalization is important) that the git LLVM repository knows the
person as. Multiple email addresses can be specified on the command
line. Note that the script as is will email the results to all email
addresses specified on the command line - so be careful not to spam
people accidentally!
Differential Revision: https://reviews.llvm.org/D46192
llvm-svn: 332711
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