bisect | 易学教程

rspec Bisect Runs Indefinitely

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问题 I'm seeing some unexpected behavior regarding rspec --bisect when running on circleci. Often times the bisect runs indefinitely until it times out after 5 hours. Bisecting appears to be working initially, but once it reaches the expected end, it begins to slowly examine subsets in the opposite direction until it times out. My Env: Ruby 2.4.2p198 (2017-09-14 revision 59899) [x86_64-darwin16] RSpec 3.7 - rspec-core 3.7.1 - rspec-expectations 3.7.0 - rspec-mocks 3.7.0 - rspec-rails 3.7.2 - rspec

How to use ivy integration versions against old versions of code?

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问题 My organization is looking into using Apache Ivy for dependency management in a multi-project configuration. We have a main project (call it MAIN) where most development takes place and a few helper library projects (call it LIBPROJ) which we keep in separate repositories. What we do right now is to build jars for the library projects when they change, and commit them to the main project, but this is a big headache and leads to project bloat. It looks like using something like ivy is a good

What is Mercurial bisect good for?

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问题 I've been reading about hg bisect and its interesting to be able to know which revision introduced a bug, but I'd like to know what people use this information for. The only thing I can think of is trying to narrow down which dates might need a data fix if it's a bug that results in some form of invalid data. update: I think I completely misunderstood the purpose before I posted this. I was thinking that I would do the debugging and find which line(s) introduced the bug and then use bisect.

How could I use git bisect to find the first GOOD commit?

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问题 I have the following problem: the version at master works fine the version of the last tag before master (say last ) has a bug a colleague needs a patch for his last revision for that certain bug Okay. Let's ask our friend git bisect for the revision that fixed the bug: git bisect start git bisect bad last git bisect good master But that's not going to work: Some good revs are not ancestor of the bad rev. git bisect cannot work properly in this case. Maybe you mistake good and bad revs? Any

Bisector of two vectors in 2D (may be collinear)

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问题 How to find a bisecor b = (bx, by) of two vectors in general (we consider two non–zero vectors u = (ux, uy), v = (vx, vy), that may be collinear ). For non-collinear vector we can write: bx = ux/|u| + vx / |v| by = uy/|u| + vy / |v| But for collinear vectors bx = by = 0. Example: u = (0 , 1) v = (0, -1) b = (0, 0) 回答1: A general and uniform approach is to get the angle of both vectors theta_u = math.atan2(ux, uy) theta_v = math.atan2(vx, vy) and to create a new vector with the average angle:

bisect.insort complexity not as expected

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问题 trying to find the most optimal data structure in python3 for a frotier problem i have to develop have just realised that the complexity of using the module bisect to make a real time ordered insert is not O(nlog n) as it should be and grows exponentially instead. do not know the reasoning of it so felt like asking u guys just in case know something about it since i find it really interesting. think im using the module right so it shouldn't be a problem on my end, anyways here is the code

Does a bisect in version control benefit from using a rebaseif workflow?

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问题 The rebaseif mercurial extension automates the process, when pulling, of doing a rebase only if the merge can be done automatically with no conflicts. (If there are conflicts to resolve manually, it does not rebase, leaving you ready to do a manual merge of the two branches.) This simplifies and linearizes the history when developers are working in different parts of the code, although any rebase does throw away some information about the state of the world when a developer was doing work. I

Does a bisect in version control benefit from using a rebaseif workflow?

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The rebaseif mercurial extension automates the process, when pulling, of doing a rebase only if the merge can be done automatically with no conflicts. (If there are conflicts to resolve manually, it does not rebase, leaving you ready to do a manual merge of the two branches.) This simplifies and linearizes the history when developers are working in different parts of the code, although any rebase does throw away some information about the state of the world when a developer was doing work. I tend to agree with arguments like this and this that in the general case, rebasing is not a good idea,

What git commit practice is better?

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问题 I truly believe that to have one commit on one issue is a good practice. I'm sure I read it somewhere in an article like “Best practices”. As such, my workflow has been the following: For a new issue, I create a new local branch with git checkout -b new-issue . Commit all changes into it. Sometimes this involves lots of commits. When done, I squash the commits and rebase them into current thematic branch. If something goes wrong, I can git revert the commit, find the bug, fix it, and commit

Finding first appearance of text in Mercurial repository

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问题 I have a Mercurial repository with ~800 changesets and I need to find the first changeset where the word Example appeared. The word appears inside a .php file and not on a commit comment etc. What is the quickest/easiest way to do that? 回答1: try hg grep Example *.php hg grep [OPTION]... PATTERN [FILE]... search for a pattern in specified files and revisions Search revisions of files for a regular expression. This command behaves differently than Unix grep. It only accepts Python/Perl regexps.