How we can remove interim history while doing hg pull? - mercurial

If i want to pull changes from local branch to my main stream branch and don't want interim changeset history of local branch in main branch. How we can do it?

You can't rewrite changesets history on push to server
You can rewrite local history in local repository before push
You can perform partial push and send only specific branch(es) hg push -b ..., not the whole repo
Consolidation of 1-3 means
You have to have new, separate pushable branch
You'll merge to this branch and collapse it's history (MQ-patches, add extension: histedit|collapse)
Push this branch only

since it is not possible omit changesets when pushing, you can try this solution, it is not clear at all, but you can do it this way. Imagine your local hg log like this:
5: top (this changeset you want to have in main branch)
4: (local changeset)
3: (local changeset)
2: (local changeset)
1: Change set what already is in main branch and should be parent of newly pushed changeset from local
If I had this issue I would update to 1, then revert all changest from 5 (so I will have working directory same as 5 is) then do temporarily commit (6), and this temporarily commit(same as changeset 5) I would push into main. In your local you can then merge 5 and 6 and continue, but there will allways be outgoing changesets from your local into main. Commands would look like this:
hg up 1
hg revert -r 5 -a
(now you have your working dir same as 5)
hg ci -m "Name of commit that will be shown in main branch"
hg push -r 6 main_branch_path
But proper solution, is, as we use it this way, to keep all your devel changesets in main too. HTH

Related

how to backout to an older version ignoring all versions after that

I have 3 commits which I pushed to the public repository accidentally. I want to revert to an older version (a version before these 3 commits happened) and make it the current code in our public repository.
I am using TortoiseHg,version 2.11.1
Option 1
You can use the strip option as mentioned in the command
hg strip is the command
This extension has to be enabled
Enable the extension by adding the following lines to your .hgrc or Mercurial.ini:
[extensions]
strip =
This option is only suitable if you have access to the central repository where your code is hosted and you have a small group in which you would know if someone have already pulled your changes.
Option 2
Another option would be to backout these 3 commits, Since you are using UI,I will attach a screen shot
Step 1: Right click the unwanted commit and you will see a backout option click that and the wizard wll guide you.
if its a merge that you are trying to backout then you have to select which branch to backout to.
Do the same for the 3 unwanted commits
Option 3
if you have many commits and if its in a named branch following these steps will provide a solution
1) Close the branch and update to the last good commit you want.
2) Reopen the barch from there by new commit (Named branch can have multiple heads)
3) use hg revert -r and commit
This will make the working directory exactly as the last good commit you need and ignore the inwanted commits. This will only work if the commits are in a named branch.
You can do it like this:
hg backout -r <rev>
hg push
This will backout to the <rev> revision (which should be the last correct commit). In other words, it will set your working directory into the same state as it was on the last correct commit and create a new commit with an explanatory message. Then you'll push it to the public repository so it's the current code again.

How to Switch the branch an commit with Tortoise Hg?

I have two branches named X and Y. X is previously created and y is the latest one. Now I am at branch 'Y' and I have modified some files. I need to commit the files which I have modified and I need to commit the changes to 'X' branch instead of 'Y' branch. How can I do this with Mercury Hg or Tortoise Hg? (How to Switch to 'x' branch and commit the changes?)
You could
Commit it to Y branch
Then transplant/grave it to X branch
Then strip changeset from Y branch
As result it's look like you commited it to X instead of Y
If you have not committed the changes then you should be able to do the following:
hg update X
hg commit
Unless you've changed some of the same files in the same places within the file, this should be sufficient. If you have, then your hg update X command should fail. You have a few options at this point.
You can use Mercurial Queues (mq).
You can put your current changes into a patch queue:
hg qnew stufftomove -e
You'll be presented with whatever editor you use to create a commit message. Go ahead and fill in your commit message with whatever you want it to be when it is ultimately committed. If you don't use -e, it will just create the patch queue with no commit message. Later you can make a commit message with hg qrefresh -e if you want.
After the patch queue is created, pop it off with:
hg qpop
Now move to the X branch:
hg update X
Now push the patch queue on. This will apply the patch file:
hg qpush
This can either go on cleanly, or if you did have merge conflicts, you'll get a message that .rej files have been created. Those show you the parts of the changes that could not be applied automatically.
If you have .rej files, manually apply the pieces that didn't work and then run
hg qrefresh
This will update the patch file with the new changes.
When everything looks like what you want it to, you can convert the patch queue to a real commit with
hg qfinish stufftomove
Your file changes should now be committed on the branch you want them to be on.
Alternatively, if you already committed the changes on the wrong branch, and have not pushed your changes (or had them pulled) to a remote repository, you can do this:
hg qimport -r <revision to import>
At this point, continue the above instructions starting with hg qpop.
If you can be more specific about the state of the files and branches, I can help more specifically. In any case, I hope this helps.
Side note: If you've got merge conflicts in the steps above and don't like dealing with .rej files, you can use hg rebase which will allow you to resolve the conflicts in your favorite merge tool (or whatever tool you've got configured). Hope this helps.
I use Shelving for such operation: https://tortoisehg.bitbucket.io/manual/2.9/shelve.html
While you're on 'Y' branch, put all your changes to shelf. Then switch to 'X' branch and restore changes from your shelf.

Only local branch

I want to have local branch in my cloned repository that will not exist in main repository. To do this I create branch named "new_branch", develop and commit to it. Sometimes I make commites to default branch and after that I make "push -b default" that the branch "new_branch" not appeared in main repository. After the development in "new_branch" finished I make merge to default branch and I want to make push for default branch "push -b default". I get message "abort: push creates new remote branches: new_branch! (use 'hg push --new-branch' to create new remote branches)". Can I have a only local branch in Mercurial?
You can try:
LocalBranch Extension (only Tim Lee fork seems to work with current Mercurial)
MQ (and push without --mq option)
Phases can be used for this in modern Mercurial:
# hg phase --secret -r 7::10
Will mark changes 7 through 10 as secret, as so they won't be pushed, pulled, cloned, etc.
Once you create a branch using hg branch, it is a permanent part of the changeset. It will always require you to push using the --new-branch option. You cannot strip the branch name without modifying history.
If you want give a local name to a branch that does not get propagated when you push, then you should use hg bookmark instead.

No changes are pushed when using hg-git

I'm trying to get the hg-git extension working under Windows and after hours of fiddling, I finally seem to have it working. However, nothing shows up in my git repository even though the output of hg push reads:
importing Hg objects into Git
creating and sending data
github::refs/heads/master => GIT:8d946209
[command completed successfully Wed Oct 20 15:26:47 2010]
Try issuing the command hg bookmark -f master
(use -f to force an existing bookmark to move)
Then try pushing again.
This works because Hg-Git pushes your bookmarks up to the Git server as branches and will pull Git branches down and set them up as bookmarks. (from the official README.md)
And it seems that just after I asked this, I made a trivial change. This was picked up and pushed. So it seems that you have to wait until you've made a new commit in order for hg-git to pick it up.
I had chosen to 'Initialize this repository with a README'. This meant I ended up with two heads, which I couldn't hg merge because one had a bookmark.
To get pushing working, I had to:
configure hg-git and github remote as per https://blog.glyphobet.net/essay/2029
pull from github and update
force the merge (checking which id to use with hg heads),
commit the merge
add a trivial change to a file (add a space char to the end),
commit, then
move the bookmark to the tip
push to my configured github remote
This ended up with commands as follows (substituting in <x> sections)
hg pull github
hg update
hg merge <revision-id-of-incoming-git-version>
hg addremove
hg commit -m 'merged with github'
# make some trivial change to a file - eg add a space where it doesn't cause harm
hg add <changed-file>
hg commit -m 'trivial change'
hg bookmark -f master
hg push github
make sure you pick the remote revision for the merge above - if you don't it doesn't work!

Named previously unnamed branch

It seems naming a previously unnamed branch doesn't really work out. It creates a nasty multiple heads problem that I can't find a solution for.
Here is the workflow...
UserA starts working on feature that they expect to be small, so they just start working(off the default branch). The change turns out to be a large project and will need multiple contributors. So UserA issues... hg branch "Feature1" and continues working, committing locally s needed.
UserA then pulls down the changes from the central repo so he can push.
At this point, why does hg heads return 3 heads? It shows 2 for default and 1 for Feature1. The first head for default is the latest change by another user on the branch(irrelevant). The second default head is the commit prior to the hg branch "Feature1" commit.
The central repository has rules enforced so that only 1 head per branch is allowed, so forcing a push isn't an option. The repo doesn't want multiple heads on the default branch.
UserA should be able to push these changes so that other users can see the Feature1 branch and help out. I can't seem to find a way to "correct" this. I don't think I can re-write the branch of the initial commits for the feature, before it was a named branch.
I know the initial changes before the named branch are technically on the default branch, but does that mean they will be heads until that Feature1 branch is merged?
I have found a solution without have to re-clone and merge changes in. I prefer this method mainly for historical purposes as I think it's valuable information on what happened with the feature (aka it started small and then was re-thought to be larger etc..)
In my example, UserA should update to the unwanted head on default and close that branch of default, as it is unwanted. This will leave 2 heads one for default and one for Feature1 as expected.
hg update -r X // X is the rev of the unwanted head.
hg commit --close-branch -m "Moved to Named Branch Feature1, cleaning up initial work"
Then update to the Feature1 branch, push and continue working.
Another workflow is almost the same except the UserA decided to push Feature1 for others to help and default has not been moved forward by anyone else. The local repo only has 2 heads and the user could push, but UserA does NOT want to just push as the tip of default would now be the changeset that really "belongs" to Feature1.
UserA should update to the latest, unwanted changeset of default. Then revert the default back to the revision before UserA starting working.
hg update default
hg revert -r Y // Y is the changeset before UserA started working on the feature
hg commit -m "Reverting changes that now exist in Feature1 branch"
Then update to the Feature1 branch, push and continue working.
The reason you're seeing two heads on the default branch in the local repo is because, after the most recent common ancestor, the changesets in the central repo have nothing in common with the changesets in the local repo.
To solve your problem:
Create a new local clone of the central repo at whatever revision you want (it will probably be easier if you use the most recent common ancestor).
hg clone -r common_ancestor central local2
Export the changes from the first local repo. Note the colon after first_local_change to get all the changes in that repo.
cd local1
hg export -r first_local_change: > ../local1.patch
Go to the new local repository, create the feature branch to import the changes into, then import them:
cd ../local2
hg branch feature
hg import ../local1.patch
hg import has an option to use the branch information in the patch file, but it's disabled by default.
At this point, you can continue using the new local repo in the original one's place. Also, I would double check to make sure that everything is as it should be in the new repo.
We found this to be a very big problem with our team (doing branch-per-feature) and ultimately stopped the hgweb.cgi script working (HTTP 414 Request too Long).
from hg help heads: hg heads with no args will show branch heads, which by definition are changesets that have no children on the same branch. hg heads --topo should give you result you need in this case.
Don't go via the central repository. Just have your developers pull from each other.