Git Tips

Getting Help

git help
git help <command>
cat .git/config

https://www.kernel.org/pub/software/scm/git/docs/

Mercurial Command Comparison

See Mercurial <=> Git Command comparison

hg	git	comment
hg backout	git revert	options my differ
hg branches	git branch [-a]
hg commit -m 'msg'	git commit -a -m 'msg'	from trial / alternative: `git add …; git commit`
hg diff -c -1	`git diff @{0}^!` or `git show @{0}`	See diffs of last commit (tip)
hg diff -c -2	`git diff @{1}^!` or `git show @{1}`	See diffs of penultimate commit
hg glog	git log –graph
hg glog -v	git log –name-only
hg init	git init	from trial
hg pull -u	git pull [url]	URL may be specified, otherwise remot tracking thing is used?
hg push	git push	See below
hg status; hg outgoing	git status
hg uptdate …	git checkout …

Push

In order to push from repo S to reop T, T must not be on the branch you want to push to (typically master). Therefore create a dummy branch git checkout -b dummy on T. Now you can push to T/master from S

Alternatively you can turn T into a „bare“ repo.

Clone

Example: Using SSH from within the remote home dir

git clone ssh://[user@]host/~user/tmp/igit igitigit

See git help clone (also for valid URL formats)

The result of git clone <url> without specifying a branch name is dependent on which branch the source repo currently is!

Branches

git branch shows existing local branches, while git branch -r causes the „remote-tracking“ branches to be listed, and option -a shows both. See git-branch

With Git it is not possible to directly swich to a different branch on a cloned repository like in Mercurial. Instead first you have to create a new (local) branch wich „tracks“ the specified remote brach, eg. (origin/stable) and then checkout (=update) this branch to your working directory. The following command does both steps at once:

git checkout -b stable origin/stable

Now you can pull all needed updates whenever a new release is made:

git pull

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