git - Why checkout -b does work only after second attempt? -

- 

$sudo git clone sample.git   cloning 'sample'... warning: appear have cloned empty repository. done.  $ cd sample  $ echo "hello world" > readme  $ git add readme  $ git checkout -b switched new branch 'a'  $ git branch  $ git checkout master error: pathspec 'master' did not match file(s) known git.  $ git checkout error: pathspec 'a' did not match file(s) known git.  $ git checkout -b b switched new branch 'b'  $ git branch  $ git commit -am . [b (root-commit) 12b8434] .  1 file changed, 1 insertion(+)  create mode 100644 go  $ git branch * b  $ git checkout error: pathspec 'a' did not match file(s) known git.  $ git checkout -b switched new branch 'a'  $ git branch *   b

what wrong first checkout -b a, why branch not created?

well, told git create branch in empty repository. there no commit yet, , branch "sticky note" pointing commit. git supposed do...

at least stores new branch in head, branch tip updated future commits. shown commit.

more fun empty repositories:

~/tmp> mkdir empty ~/tmp> cd empty ~/tmp/empty> git init initialized empty git repository in tmp/empty/.git/ ~/tmp/empty> git log fatal: bad default revision 'head' ~/tmp/empty> git branch xxx fatal: not valid object name: 'master'. ~/tmp/empty> git checkout -b xxx switched new branch 'xxx' ~/tmp/empty> git log fatal: bad default revision 'head' ~/tmp/empty> ls -l .git/ branches/    config       description  head         hooks/       info/        objects/     refs/ ~/tmp/empty> cat .git/head ref: refs/heads/xxx ~/tmp/empty> ls -l .git/refs/heads total 0

edit: adopted comment @jthill.


Comments

Post a Comment

Popular posts from this blog

sql - invalid in the select list because it is not contained in either an aggregate function -

-
i can't figure out rewrite sql statement avoid error below msg 8120, level 16, state 1, line 26 column 'staffmember.staffmemberid' invalid in select list because not contained in either aggregate function or group clause. sql statment select (select [dbo].[udf_readstaffmemberbasic](sm.staffmemberid) xml path ('staffmembersummary'), root ('items'), type ), count(sm.staffmemberid) totalresults, ceiling(cast(count(sm.staffmemberid) decimal)/ @pagesize) totalpages staffmember sm inner join staffmembertoadditionalrole ar on sm.staffmemberid = ar.staffmemberid (sm.firstname '%' + @name + '%' or sm.surname '%' + @name + '%') , (@floorid null or sm.floorid = @floorid) , (@directorateid null or sm.directorateid = @directorateid) , (@additionalroleid null or ar.additionalroleid = @additionalroleid) order sm.staffmemberid offset @page * @pagesize rows fe...
Read more

Angularjs unit testing - ng-disabled not working when adding text to textarea -

-
i trying test angularjs component using karma, mocha, power-assert. have textarea , button in component, button disabled based on length of text in textarea. when run component in browser works perfectly. can't figure out how test functionality. here's bit of code. inquiryform.js function inquiryform($scope) { // plan add logic here } angular.module('myapp').component('inquiryform', { controller: inquiryform, controlleras: 'inquiryform', templateurl: 'inquiryform.html' }); inquiryform.html <div class="contact"> <div>thanks contacting us.</div> <form> <textarea ng-model="inquiryform.inquirytext" name=""></textarea> <input type="submit" value="send" ng-disabled="!inquiryform.inquirytext.length"> </form> </div> inquiryformtest.js describe('inquiry form ', () => { let $r...
Read more

How to start daemon on android by adb -

-
can me please, head swollen... i trying run daemon on android emu/device command: adb -s <device_name> shell su -c /dir/daemon <port_number> but nothink happens, , no errors! if do: adb -s <device> shell and form shell cmdline: su -c /dir/daemon <port_number> than work fine. try use shell-script , run: adb -s <device_name> shell sh su -c /dir/script.sh <port_number> and try generate script qt code port number , use: adb -s <device_name> shell sh su -c /dir/script.sh but not helped... problem if enter adb shell previous run daemon - work. problem on different device/emu/iso_image different command format not work. example: adb -s <device_name> shell su -c /dir/daemon <port_number> // work @ emu, not @ iso and vice: adb -s <device_name> shell su -c "/dir/daemon <port_number>" // work @ iso etc. everybody can answer what's matter? sorry english adb shell su -c ...
Read more