version control - Git can not checkout another orphan branch from an orphan branch -


on machine1 create orphan branch git checkout --orphan branch1.

on machine2 cloned repository 1 branch git clone <url> --branch branch1 --single-branch. worked expected.

back on machine1 created new second orphan branch git checkout --orphan branch2.

on machine2 when git fetch origin -- branch2 responds with:

* branch branch2 -> fetch_head

but when try checkout branch git checkout branch2 see

error: pathspec 'branch2' did not match file(s) known git.

i can't figure out how fetch , checkout second orphan branch machine2. because started off single-branch clone?

first, side note: orphan branch branch no parent and no commits. since has no commits, doesn't exist. once make commit on it, it's no longer orphan: has commit, can parent; stops being orphan branch @ all. ordinary branch, every other branch. unusual repository has 2 (or more) root commits: commits have no parent.

since able git fetch these things, not orphan branches; branches. "orphanness" (or lack thereof) red herring.

what's going on

... when git fetch origin -- branch2

as petseral noted in comment, refspec arguments git fetch can, , should, contain both remote source part and destination part:

git fetch origin src:dst

the source part can abbreviated (as in branch2) or spelled out (refs/heads/branch2, quite getting branch , not tag or something). destination part remote-tracking branch name (which not branch!) in own repository, such refs/remotes/origin/branch2.

the refspec can (and remote-tracking branches, should) start plus sign, telling git overwrite own reference regardless of means you. remote-tracking branch names, overwriting sensible. local branch names, it's more questionable.

normally don't have of this

if git version @ least 1.8.4, git fetch figures out on own. single-branch clones different:

is because started off single-branch clone?

yes! single-branch clone, clone have default fetch refspec set match single branch. is, git fetch looks @ repository's configuration, , configuration says: don't keep track of upstream except 1 single branch.

you're trying fetch different branch, git fetch assumes don't want keep track of it. dumps result temporary fetch_head file every fetch dumps (for historical reasons among others) , forgets it.

if convert single-branch clone normal clone, editing fetch = line read way does, now-normal clone behave, well, normally. see how "undo" --single-branch clone? details (the accepted answer there assumes 1 remote, named origin).


Comments

Post a Comment

Popular posts from this blog

node.js - Node js - Trying to send POST request, but it is not loading javascript content -

i have been trying send post request website, , has not been loading full site. i guessing problem node js not loading javascript content, executing it. can see javascript in response, though never loads content javascript files producing in html. what mean is, doesn't execute javascript. how make node js code overcome this, , wait the full website load? have tried native code, , "request' module, both producing same errors. if helps, don't need native javascript. modules fine. some code have tried (request module): var options = { method: 'post', uri: 'https://url', formdata: { 'email': 'email', 'prize': '0', 'transactional': 'on' }, headers: { /* 'content-type': 'application/x-www-form-urlencoded' */ // set automatically } }; rp(options) .then(function (body) { console.log(body) }) .catch(function (err) { console.log(err) }); when fetch content...
Read more

javascript - Replicate keyboard event with html button -

i have tried few ways make happen. have javascript pinball game uses keyboard keys controls. converting application touch screen display. workaround, hoping overlay buttons when clicked simulate keyboard strokes. have done research , sounds should work. using jquery v3.2.1 here things have tried far... html element: <input type="button" class="coil"></input> $('.coil').trigger({type: 'keydown', which: 40, keycode: 40}); with this, not errors, nothing happens. var coilkey = $('body').keydown(function(e) { switch (e.keycode) { case 40: break;} }) $('.coil').click(coilkey); this 1 returns error in console... ((jquery.event.special[handleobj.origtype] || (intermediate value)).handle || handleobj.handler).apply not function below javascript game engine handles key listeners... addkeylistener: function (keyandlistener) { this.keylisteners.push(keyandlistener); }, // gi...
Read more

javascript - Web audio api 5.1 surround example not working in firefox -

i've been playing lott lately web audio api on both firefox , chrome. few days ago started experiment surround set. when trying surround audio in web audio api came notice example works fine in chrome v59 not in firefox v54. // create web audio api context var audioctx = new (window.audiocontext || window.webkitaudiocontext)(); audioctx.destination.channelinterpretation = 'discrete'; audioctx.destination.channelcountmode = 'explicit'; audioctx.destination.channelcount = 6; var oscillators = []; var merger = audioctx.createchannelmerger(6); console.log(audioctx.destination, merger); //merger.channelinterpretation = 'discrete'; //merger.channelcountmode = 'explicit'; //merger.channelcount = 6; var addoscilator = function(channel, frequency) { var oscillator = audioctx.createoscillator(); oscillator.frequency.value = frequency; // value in hertz oscillator.connect(merger,0,channel); oscillator.start(); oscillators.push(o...
Read more