Boats and Streams Shortcut Tricks - Math Shortcut Tricks

Join Stack Overflow to learn, share knowledge, and build your career. Connect and share knowledge within a single location that is structured and easy to search. I've started playing with Git and have come across the terms "upstream" and "downstream".

I've seen these before but never understood them fully. In terms of source control, you're " downstream " when you copy clone, checkout, etc from a repository. Information flowed "downstream" to you.

When you make changes, you usually want to send them back " upstream " so they make it into that repository so that everyone pulling from the same source is working with all the same changes. This is mostly a social downstrram of how everyone can coordinate their work rather than a technical requirement of source control. You want to get your changes into the main project so you're not tracking divergent lines of i got boats to build lyrics chord. Sometimes you'll read about package or release managers the people, not the lroblems talking about submitting changes to "upstream".

That usually means they had to adjust the original sources so they could create a package for their. They don't want to keep making those changes, so if they send problemw "upstream" to the original source, they shouldn't have to deal with the same issue in the next release. When you read in git tag man page :. One important aspect of git is it is distributed, and downstrram distributed largely means there is no inherent "upstream" or "downstream" in the.

Those notions are always relative between two repos and depends on the way data flows:. The DVCS Distributed Version Control System twist is: you have no idea what downstream actually is, beside your own repo relative to the remote repos you have declared. In term of " flow of data ", your repo is at the bottom "downstream" of a flow coming from upstream repos "pull from" and going back to the same or other upstream repos "push to".

It means you are pulling from an "upstream" repo where a rebase took placeand you the "downstream" repo is stuck with the consequence lots of duplicate commits, because the branch rebased upstream recreated the commits of the same branch you have locally.

That is bad upstream and downstream problems shortcuts not work for one "upstream" repo, there can be many downstream repos i. Again, with the "flow of data" analogy, in a DVCS, one bad command "upstream" can have a " ripple effect " downstream.

Note: this is not limited to data. It also applies to parametersas git commands like the "porcelain" ones often call internally other git commands the "plumbing" ones. See rev-parse man page :. Many git porcelainish commands take mixture of flags i. This command is used to distinguish between. The term upstream also downstrram some unambiguous meaning as comes to the suite of GIT tools, especially relative to tracking.

It will print an error message otherwise:. Just issue :. Pgoblems every branch that is up to date or successfully pushed, add upstream tracking reference, used by argument-less git-pull 1 and other commands. For more information, see branch. Defines, together with branch. It defaults to origin if no remote is configured. Generally speaking, upstream is where you cloned from the origin.

Downstream is any project that integrates your work with other works. There is, alas, another use of "upstream" that the other answers here are not getting at, namely to refer to the parent-child relationship of commits within a ipstream.

Scott Chacon in the Pro Git book is particularly prone to this, and the results are unfortunate. Do not imitate this way of speaking. He wants to say that commit B is the only child of the only child of Why this direction should be called "upstream" rather than "downstream", donstream why the geometry of such a pure straight-line graph should be described "directly upstream", is completely unclear and probably arbitrary.

The man page for git-merge does a far better job of explaining this relationship when it says that "the current branch head is an ancestor of the named commit. Indeed, Chacon himself appears to use "downstream" later to mean exactly the same thing, when he speaks of rewriting all child commits of a deleted commit:. You must rewrite all the commits downstream from 6df76 to fully remove this file from your Git i got boats to build lyrics chord. Basically he seems not to have any clear idea what he means by "upstream" and "downstream" when referring to the history of commits over time.

This use is informal, then, and not to be encouraged, as it is just confusing. It is perfectly clear that every commit pproblems one has at least one parent, worm that parents of parents are thus ancestors; and in the other direction, commits have children and descendants. That's accepted terminology, and describes pproblems directionality of the graph unambiguously, so that's the way to talk when you want to describe how commits relate to one another within the graph geometry of a repo.

Do not use "upstream" or "downstream" loosely in this situation. The man page does go on to describe a situation where the use of "upstream" is legitimate: fast-forwarding often happens when "you are tracking an upstream repository, you have committed no local changes, and now you want to update to a newer upstream revision.

But in the man page there is a remote repository; there is no remote repository in Chacon's cited example of fast-forwarding, just a couple of locally created branches. Stack Overflow for Teams � Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn. Asked 10 years, 11 months ago. Active 10 months ago. Viewed k times. Improve this question. ThomasMcLeod 6, 4 4 gold badges 37 37 silver badges 71 71 bronze badges. Related: What does 'upstream' mean?

Add a comment. Active I got boats to build lyrics chord Votes. Improve this answer. DilithiumMatrix I would say upstream and downstream are adjectives � Crt Jun 9 '17 at They are upstream and downstream problems shortcuts not work when they are used as modifiers, but those terms are often used as nouns.

When "upstream" and "downstream" describe a relative position, I think, technically, that makes them adjectives. This is just a comment on what I understand, not correcting. MycrofD dowjstream can be used as adjectives and nouns depending on the context � reggaeguitar Sep 21 '18 at When you read in git tag man page : One important aspect of git is it is distributed, and being distributed largely means there is no inherent "upstream" or "downstream" in the.

Those notions are always relative between two upstream and downstream problems shortcuts not work and depends on the way data flows: If "yourRepo" has declared "otherRepo" as a remote one, then : you are pulling from upstream "otherRepo" "otherRepo" is "upstream from you", and you are "downstream for otherRepo". Basically: In term of " flow of data ", your repo is at the bottom "downstream" of i got boats to build lyrics chord flow coming from Upstream And Downstream Problems Shortcuts Canada probems repos "pull dowsntream and going back to the same or other upstream repos "push to".

See rev-parse man page : Many git porcelainish commands take mixture of flags i. Abu Nafee Ibna Zahid 1 1 gold badge 5 5 silver badges 17 17 bronze badges. VonC VonC 1. I have reworded my answer to better illustrate the role of the "upstream" repo relative to your own local and "downstream" repo.

Those are just interchangeable names, only the 'git This adds i got boats to build lyrics chord parameters in. Upstream and Push Gotcha i got boats to build lyrics chord a look at git-config 1 Manual Page git config --global push.

Peter Host Peter Host 1, dwonstream 11 silver badges 10 10 bronze badges. Excerpt of git branch --help as of As this option had confusing syntax, it is no longer supported. Please use --track or upstream and downstream problems shortcuts not work instead. That's a bit upstream and downstream problems shortcuts not work informal terminology.

As far as Git is concerned, every other repository is just a remote. The terms are not restricted to Git repositories. For instance, Ubuntu is a Debian derivative, so Debian is upstream for Ubuntu. Lii 9, 6 6 gold badges 53 53 silver badges 73 73 bronze badges. Upstream Called Harmful There is, alas, another use of "upstream" that the other answers here are not getting at, namely to refer to the parent-child relationship of commits within a repo.

Indeed, Chacon himself appears to use "downstream" later to mean exactly the same thing, when he speaks of rewriting all child commits of a deleted commit: You must rewrite all the commits downstream from 6df76 to fully remove this file from upstream and downstream problems shortcuts not work Git history Basically he seems not to have any clear idea what he means by "upstream" and "downstream" when referring to the history of commits over time.

The git-rebase man page also suffers from this overloading: the commit that is checked out before rebasing is termed the "upstream". This, too, may have affected Chacon's usage. Good point. Would be kind of helpful to gather common "git-terminology". Especially for newbies or ppl contributing to git. Would have saved me good time getting used to the wording of the git man pages. SebNag something like this?

Came here from the git-rebase docs because I was totally confused why a commit ref would be called "upstream" there in fact, I was doubting myself as I haven't seen this terminology. The Overflow Blog. Introducing The Key. Featured ehortcuts Meta. Stack Overflow for Teams is now free for up to 50 users, forever.

Solution: From the question, you can write down the below values. Let this distance be X. They rescued her. Name required. No quality childcare.

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Between a most appropriate reasons to erect the lead transport is to scheme your TIG welder around regulating the wheels. There's still a back cabin so it will presumably still nap 4 to six. Exam it .



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