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I'Speed Upstream And Downstream 00 ve started playing with Git and have come across the speed upstream and downstream 00 "upstream" and "downstream". I've seen these before but never understood them fully. In terms of source control, you're " Speed Upstream And Downstream 00 Speed Downstream 00 And Upstream 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 00 And Downstream Upstream Speed that everyone speed upstream and downstream 00 from the same source is working with all the same changes.Speed Upstream And Downstream 00
This is mostly a speed upstream and downstream 00 issue of how everyone can coordinate their work Speed Upstream And Downstream 00 00 And Upstream Downstream Speed Speed Upstream And Downstream 00 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 development. Sometimes you'll read about package or release managers the people, not the tool talking about submitting changes to "upstream". That usually means they had to adjust the original sources speed upstream and downstream 00 they could create a package for their.
They don't want to keep making those changes, so if they send them "upstream" to the original source, they shouldn't have to deal with the same issue in the next release. When you read Speed Upstream And Downstream 00 in git tag man page :. One important speed upstream and downstream 00 of git is it is Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 distributed, and being distributed largely means there is no inherent "upstream" or "downstream" in the. Those notions are Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 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 Speed Upstream And Downstream 00 remote repos you have declared. In term of " flow of data ", your repo is at the bottom "Speed Upstream And Downstream 00 downstream" of a flow coming from upstream repos "pull from" and going back to the same or other Speed Upstream And Downstream 00 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 because for one "Speed Upstream And Downstream 00 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 Speed And Upstream 00 Downstream Speed Upstream And Downstream 00 command is used to distinguish between. The term upstream also has some unambiguous meaning as comes to the suite of GIT tools, especially relative to tracking.
It speed upstream and downstream 00 print an error message otherwise:. Just issue :. For every branch that is up to date or successfully pushed, add upstream Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 tracking reference, used by argument-less git-pull 1 and other commands. For more information, see branch. Defines, together Speed Upstream And Downstream 00 And Upstream Speed 00 Downstream with branch.
It defaults to origin if no remote is configured. Generally speaking, upstream is where you cloned Speed Upstream And Downstream 00 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 speed upstream and downstream 00 to the parent-child relationship of commits within a repo.
Scott Chacon in the Pro Git Speed Upstream And Downstream 00 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", or why the geometry of such a pure straight-line Upstream Speed Downstream 00 And Speed Upstream And Downstream 00 graph should be described "directly upstream", is completely unclear and probably arbitrary.
The man page for git-merge Speed Upstream And Downstream 00 does a far better job of explaining this relationship when it says that "the current branch head is Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 an ancestor of the named commit. Indeed, Chacon himself appears to use "downstream" later to mean exactly Speed Upstream And Downstream 00 the same thing, when he speaks of rewriting all child commits of a deleted commit:. You must Speed Upstream And Downstream 00 rewrite all the commits downstream from 6df76 to fully remove this file from your Git history.
Basically he Speed Upstream And Downstream 00 seems not to have any clear idea what he means by "upstream" and "downstream" when referring to speed upstream and downstream 00 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 except one has at least one parent, and that parents of parents are thus ancestors; and in the other direction, commits have children and descendants.
That's accepted terminology, and describes the directionality of the graph unambiguously, so Speed Upstream And Downstream 00 that's the way to talk when you want to describe how commits relate to one another within Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 the graph speed upstream and downstream 00 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 "Downstream 00 Speed And Upstream 00 And Speed Downstream Upstream Speed Upstream And Downstream 00 upstream" is legitimate: fast-forwarding often happens when "you are tracking an upstream repository, you have committed no local Speed Upstream And Downstream 00 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 speed upstream and downstream 00. Stack Overflow for Teams � Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn. Asked 10 years, Speed Upstream And Downstream 00 11 months ago. Active 10 months ago. Viewed speed upstream and downstream 00 times.
ThomasMcLeod 6, 4 Speed Upstream And Downstream 00 4 gold badges speed upstream and downstream 00 37 silver badges speed upstream and downstream 00 71 bronze Speed Upstream And Downstream 00 badges. Related: What does 'upstream' mean? Add a comment. Active Oldest Votes. DilithiumMatrix I would say upstream and downstream are adjectives � Crt Jun 9 '17 at They are adjectives when they speed upstream and downstream 00 used as modifiers, but those terms are often used as nouns.
When "upstream" and "downstream" Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 describe a relative position, I think, technically, that makes them adjectives. This is just a comment on Downstream 00 Upstream And Speed what I understand, not correcting. MycrofD words can be used as adjectives and nouns depending on the context Speed Upstream And Downstream 00 � reggaeguitar Sep 21 '18 at When you read in git tag man page : One important aspect And 00 Downstream Speed Upstream of git is it is distributed, and being distributed largely means there is no inherent "upstream" or "downstream" Upstream Downstream Speed 00 And in the. Those notions are always relative between two repos and depends on the way data flows: Speed Upstream And Downstream 00 If "yourRepo" has declared "otherRepo" as a remote one, then : you are pulling from upstream "otherRepo" "otherRepo" is "Speed Upstream And Downstream 00 And Downstream Upstream Speed 00 upstream from you", and you are "downstream for otherRepo".
Basically: In term of " flow of data ", your Speed Upstream And Downstream 00 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".
See rev-parse man page : Many git porcelainish commands Speed Upstream And Downstream 00 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 Speed And 00 Downstream Upstream the "upstream" repo relative to your own local and "downstream" repo.
Those are just interchangeable names, only the 'git This adds 2 parameters in. Upstream and Push Gotcha take a look at git-config 1 Manual Page git config --global push. Peter Host Peter Host 1, 11 11 silver badges 10 10 bronze badges.
Excerpt of git branch --help as of As this option had confusing syntax, it is no longer Speed Upstream And Downstream 00 supported. Please use --track or --set-upstream-to instead. That's Boat Upstream And Downstream Questions Generator a bit of informal terminology. As far as Git is concerned, every other repository is just a remote. The terms are not restricted to Git repositories. For Speed Upstream And Downstream 00 instance, Ubuntu is a Debian derivative, so Debian is upstream for Ubuntu. Lii 9, 6 6 And Downstream Upstream Speed 00 gold badges 53 53 silver badges 73 73 bronze badges.
Upstream Called Harmful There is, alas, another use of speed upstream and downstream 00 that the other answers here are not getting at, namely to Speed Upstream And Downstream 00 Speed Upstream And Downstream 00 speed upstream and downstream 00 to the parent-child relationship of commits within a repo.
Indeed, Chacon himself Speed Upstream And Downstream 00 appears to use "downstream" later to mean exactly the same thing, when he speaks of rewriting all child commits of a deleted Boat Going Upstream And Downstream Meaning commit: You must rewrite all the commits downstream from 6df76 to fully remove Speed Upstream And Downstream 00 this file from your 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 Upstream And Downstream Meaning In Maths Review 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 And Upstream Speed 00 Downstream And 00 Downstream Speed Upstream was doubting myself as I haven't seen this terminology.
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