On Thu, May 07, 2020 at 05:35:53PM +0530, Kunal Chauhan wrote:
[...]
> > Note that if you merely want to see whether a commit exists "as a user",
> > just run
> >
> > git show <sha1_name>
> >
> > This command will either format you the message describing the commit
> > and the diff of its changes or exit with an error message.
> >
> IF I give
> git show ab49e09032ad like means to some initial commit id that I have
> not whole SHA , then it will work.?
It's a bit more complicated: the syntax of the `git show` command calls
its argument "a commit-ish", meaning that it may be anything which Git
will creatively try to interpret as pointing at a commit. So, it can be
the name of a branch (and then it will mean the tip commit of that
branch), the name of a tag (and then it will mean the commit pointed to
by the tag; if it points at a commit, of course, - tags can point at
objects of any type), and finally it can be the SHA-1 name of a commit
or an unambiguous prefix of such a SHA-1 name.
To demonstrate on a live repository:
$ git show ab
fatal: ambiguous argument 'ab': unknown revision or path not in the working
tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
$ git show ab4
fatal: ambiguous argument 'ab4': unknown revision or path not in the working
tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
$ git show ab49
error: short SHA1 ab49 is ambiguous
hint: The candidates are:
hint: ab498291b commit 2019-03-13 - some commit message
hint: ab49e0903 commit 2020-05-06 - another commit message
hint: ab49436ed tree
hint: ab49a5d6e tree
fatal: ambiguous argument 'ab49': unknown revision or path not in the working
tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
$ git show ab49e09032ad1fd40f0123f58a3d6c90ea451ec2
commit ab49e09032ad1fd40f0123f58a3d6c90ea451ec2 (HEAD, origin/master)
Author: Konstantin Khomoutov <kos...@bsw...ru>
Date: Wed May 6 21:23:43 2020 +0300
some commit message
<…>
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