Speed Upstream And Downstream 15
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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 Speed Upstream And Downstream 15 before but never understood them fully. In terms of source control, you're " downstream " when you copy clone, Speed Upstream And Downstream 15 checkout, etc from a repository. Information flowed "downstream" to you.
Kpstream you make changes, upsgream usually want to send them back " upstream " so they make it into that repository so that everyone pulling from the same Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 source is working with all the same changes. This is mostly a social issue of how everyone can speed upstream and downstream 15 their work rather than a technical requirement of source control. You want to get your changes into the speed upstream and downstream 15 project so you're not tracking divergent lines Upstream Speed And Downstream 15 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 so they could Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 create a package for their. They don't want to keep making those changes, so if they send Speed Upstream And Downstream 15 them "upstream" to the original source, they shouldn't have to deal with the same issue in the Speed Upstream And Downstream 15 next release.
When you read in git tag man page :. One important aspect of git is it is Speed Upstream And Downstream 15 distributed, and being distributed largely means there is no inherent "upstream" or "downstream" in the. Those notions are Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 always relative between two repos and depends on the way data flows:. The DVCS Distributed Version Control System Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 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 wnd with the consequence lots of duplicate commits, because the branch rebased upstream recreated Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 the commits of the same branch you have locally.
That is bad because for one "upstream" repo, Boat Traveling Upstream And Downstream With there can be many downstream repos i. Again, with anr "flow of data" analogy, in a DVCS, one bad Speed Upstream And Downstream 15 command "upstream" can have a " ripple effect " downstream. Note: this is not limited to speed upstream and downstream Speed Upstream And Downstream 15 15. It also applies to parametersas git commands like the "porcelain" ones often call internally other git Speed Upstream And Downstream 15 Speed Downstream 15 Upstream And commands the "plumbing" ones.
Upstrream rev-parse man page :. Many git porcelainish commands take mixture of flags i. This Speed Upstream And Downstream 15 command is used to distinguish between. The term upstream also has some unambiguous meaning as comes to the Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 suite speed upstream and downstream 15 GIT tools, especially relative to tracking.
It will print an error message otherwise:. Just issue :. For 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 Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 defaults to uostream if no remote is configured. Generally speaking, upstream is where you cloned from the origin.
Downstream is any project speed upstream and downstream 15 integrates your work with other works. There is, alas, another use downstrewm "upstream" that the other answers here are not getting upatream, namely to refer to Speed Upstream And Downstream 15 the parent-child relationship of commits within downstrream repo.
Scott Chacon in the Pro Git book is particularly prone to this, and the results are unfortunate. Do speed upstream and downstream 15 imitate this way of speaking. He Speed Upstream And Downstream 15 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 graph Speed Upstream And Downstream 15 should be described "directly upstream", is completely unclear and probably arbitrary.
The man page for git-merge does speed Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 upstream and downstream 15 far better job of explaining this relationship when speed upstream and downstream 15 says that "the current branch head is an ancestor of the named commit.
Indeed, Chacon himself appears to use "Speed Upstream And Downstream 15 downstream" later to mean exactly the same thing, when he speaks of rewriting all child commits of Speed Upstream And Downstream 15 a deleted commit:. You must rewrite all the commits downstream from 6df76 to fully remove 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. This use is informal, then, and not to Speed Upstream And Downstream 15 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 Speed Upstream And Downstream 15 children and descendants. That's accepted terminology, and describes the directionality of speed upstream and downstream 15 graph Speed Upstream And Downstream 15 unambiguously, so that's the way to talk when you speed upstream and downstream 15 to describe how Speed Upstream And Downstream 15 commits relate to one another within the graph geometry of a repo.
Do not use "upstream" or "downstream" 15 Upstream Downstream Speed And loosely in this situation. The man page does go on to downstrsam a situation where the use of "15 Upstream And Downstream Speed upstream" is legitimate: fast-forwarding often happens when "you are tracking an upstream repository, you have committed no Speed Upstream And Downstream 15 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 Speed Upstream And Downstream 15 group. Create a free Team What is Teams? Learn. Asked 10 years, 11 months ago. Active 10 months Speed Upstream And Downstream 15 ago. Viewed k times. ThomasMcLeod 6, 4 4 gold badges 37 37 silver badges 71 downstrewm bronze badges.Speed Upstream And Downstream 15
Related: What does 'upstream' mean? Add a comment. Active Oldest Votes. DilithiumMatrix I would say upstream and downstream Speed Upstream And Downstream 15 are adjectives � Crt Jun 9 '17 at They are adjectives when they are used as modifiers, but Speed Upstream And Downstream 15 those terms are often used upsttream nouns.
When "upstream" and "downstream" describe a relative position, I think, technically, Speed Upstream And Downstream 15 speed upstream and downstream 15 makes them adjectives. This is just a comment on what I understand, not correcting.
MycrofD speed upstream and downstream 15 can be used as adjectives and nouns depending on the Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 context � reggaeguitar Sep 21 '18 at When you read in git tag man page : One important aspect Speed Upstream And Downstream 15 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 speed upstream and downstream 15 repos 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 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 take mixture of flags i.
Abu Nafee Ibna Zahid 1 1 gold badge 5 5 silver badges Speed Downstream And 15 Upstream 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 Speed Upstream And Downstream 15 the 'git Speed upstream and downstream 15 adds 2 parameters in.
Upstream and Push Gotcha take a look Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 at git-config 1 Manual Page git config --global push. Peter Host Peter Host 1, 11 11 silver badges Speed Upstream And Downstream 15 10 10 bronze badges. Excerpt of git branch --help as of As this option had confusing syntax, it Speed Upstream And Downstream 15 is no longer supported. Please use --track or --set-upstream-to instead. That's a speed upstream and downstream 15 of informal terminology.
Speed upstream and downstream 15 far as Git is concerned, every other repository is speed Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 upstream and downstream 15 a remote. The terms are not restricted to Git repositories.
For instance, Ubuntu is Speed Upstream And Downstream 15 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 downstrezm to use "downstream" later to mean exactly upsstream same thing, when he speaks Speed Upstream And Downstream 15 of rewriting all child commits of a deleted commit: Speed upstream and downstream 15 must rewrite all the commits downstream from 6df76 to fully remove 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 Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 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 spfed. Would be kind Speed Upstream And Downstream 15 of helpful to gather common "git-terminology". Especially for newbies or ppl contributing to git. Would have saved me Speed Upstream And Downstream 15 Speed Upstream And Downstream 15 good time getting used to the wording of the git man pages. SebNag something like this? Came here Speed Upstream And Downstream 15 from the git-rebase docs because I was totally confused why a commit ref speed upstream and downstream 15 Speed Upstream And Downstream 15 be called "upstream" there in fact, I was doubting myself as I haven't seen this terminology.
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