How do I revert/abort a merge using source tree?
Asked by rgreig:

I'm using source tree with a mercurial repository. If I make a merge and decide against before I've commited it, how do I roll back to the exact state I was in before I hit the merge button.

Reverting seems to change all the file contents back to a previous version but then wants to commit all those changes as a new version.

I've been working round this by binning the repo and cloneing it again but surely there must be to just abandon uncommited changes?


Answers:
author: stevestreeting
body: Hit 'Revert' on the toolbar, but then click on the 'Reset All' tab and use that. This will reset the merge metadata too.

The reason you need this is that your merge action might in fact be to make no actual change, but to still record that you'd merged the two lines of development. Reset All undoes everything.

comments: author: rgreig
body: Thanks, exactly what i was after. Double thanks for the quick repsonse.


author: Sean Ridgewell
body: Found an interesting issue with this:If you have discarded your files individually, or have actually had no files changed, the 'Discard' (I'm in Windows) button in the toolbar is disabled so there's no way to abort without falling back to CLI or Phil's custom action below. It seems the UI is a bit of confused about what 'Discard' is - whether it's about files or your branch state. The discard action on a file or file set is files only, the toolbar popup dialogue is about files or branch state, but the toolbar button's availability is about files only.


author: childnode
body: unfortunatly this is WRONG. it "hard" reset your repository to what it was before the merge occured, i.e. all local, staged and unstaged changes are LOST!


author: D K
body: On Windows the button is named 'Discard' and 'Rest All' tab


author: Phil Miesle
body: I am on 1.7.3 and there is no "Reset All" tab that I can find when in the midst of conflict resolution. Given that one must "revert" all the files, and then a separate action, this seems a very non-intuitive way to abandon an merge, when all I really want to do is "git merge --abort".  

To this end, I've created a Custom Action that does a "git merge --abort" which seems to do what I want. It might be useful to others, while we wait for a proper button in the app :)

comments: author: Adrien
body: The script is used to do this is :

```
#!/bin/bashgit merge --abort
```

```
I also had to chmod my script via terminal :
```

```
chmod +x script.sh
```

```

```


author: childnode
body: as @Phil Miesle mentioned you have to have to define a script or, much easier, goto

Tools \> Options \> Custom Commands \> Add

* *text* :   
  merge abort
* *script* :  
  git
* *parameter* :  
  merge --abort

so you have it in access by right click context menu anywhere in the history tree.

++But to resume:++ **SourceTree has no native support to abort a merge clean** up to and including current latest 2.0.5 client on Mac.  
The **Discard \> All action** as mentioned by @Steve Streeting **will discard all local, staged and unstaged changes** too because it uses a *reset --hard* command and is irreversible to your uncommitted changes (if there are some unconflicting ones, else the merge will abort earlier itself)!!!

comments: author: Patrick Turley
body: Well now, this is a major feature hole.


author: Lawrence Dol
body: Thanks for this very helpful idea to be able to add the handful of git command I keep opening a command window for to the UI.


author: Bahadir Tasdemir
body: Thank you very much for the Custom Commands tip


author: esbenr
body: This would be the correct solution. It is so weired that this isn't a feature in Sourcetree.


author: Nikunj Undhad
body: How to do this for mercurial?