The output from svn diff is somewhat compatible with the patch program—more so with the svn patch subcommand introduced in Subversion 1. Because of this, you can share the changes you've made in your working copy with someone else without first committing those changes by creating a patch file from the redirected output of svn diff :.
Subversion uses its internal diff engine, which produces unified diff format, by default. If you want diff output in a different format, specify an external diff program using --diff-cmd and pass any additional flags that it needs via the --extensions -x option. For example, you might want Subversion to defer its difference calculation and display to the GNU diff program, asking that program to print local modifications made to the file foo.
Suppose while viewing the output of svn diff you determine that all the changes you made to a particular file are mistakes. Maybe you shouldn't have changed the file at all, or perhaps it would be easier to make different changes starting from scratch.
You could edit the file again and unmake all those changes. You could try to find a copy of how the file looked before you changed it, and then copy its contents atop your modified version. You could attempt to apply those changes to the file again in reverse using svn patch --reverse-diff or using your operating system's patch -R.
And there are probably other approaches you could take. Fortunately in Subversion, undoing your work and starting over from scratch doesn't require such acrobatics.
Just use the svn revert command:. In this example, Subversion has reverted the file to its premodified state by overwriting it with the pristine version of the file cached in the text-base area. But note that svn revert can undo any scheduled operation—for example, you might decide that you don't want to add a new file after all:.
The svn revert command offers salvation for imperfect people. It can save you huge amounts of time and energy that would otherwise be spent manually unmaking changes or, worse, disposing of your working copy and checking out a fresh one just to have a clean slate to work with again.
We've already seen how svn status -u can predict conflicts, but dealing with those conflicts is still something that remains to be done. Conflicts can occur any time you attempt to merge or integrate in a very general sense changes from the repository into your working copy. By now you know that svn update creates exactly that sort of scenario—that command's very purpose is to bring your working copy up to date with the repository by merging all the changes made since your last update into your working copy.
So how does Subversion report these conflicts to you, and how do you deal with them? Suppose you run svn update and you see this sort of interesting output:. A file marked with U contains no local changes but was updated with changes from the repository. One marked with G had local changes to begin with, but the changes coming from the repository didn't conflict with those local changes. It's the next few lines which are interesting. First, Subversion reports to you that in its attempt to merge outstanding server changes into the file bar.
Perhaps someone has changed the same line of text you also changed. Whatever the reason, Subversion instantly flags this file as being in a state of conflict. It then asks you what you want to do about the problem, allowing you to interactively choose an action to take toward resolving the conflict.
The most commonly used options are displayed, but you can see all of the options by typing s :. Let's briefly review each of these options before we go into detail on what each option means. Display the differences between the base revision and the conflicted file itself in unified diff format. Display all conflicting regions of the file, ignoring changes which were successfully merged.
Discard any newly received changes from the server which conflict with your local changes to the file under review. However, accept and merge all non-conflicting changes received from the server for that file.
Discard any local changes which conflict with incoming changes from the server for the file under review. However, preserve all non-conflicting local changes to that file. Discard all newly received changes from the server for the file under review, but preserve all your local changes for that file. Discard all your local changes to the file under review and use only the newly received changes from the server for that file. Launch an internal file merge tool to perform the conflict resolution.
The option is available starting with Subversion 1. Launch an external program to perform the conflict resolution. This requires a bit of preparation beforehand. Leave the file in a conflicted state for you to resolve after your update is complete. Show the list of all possible commands you can use in interactive conflict resolution. We'll cover these commands in more detail now, grouping them together by related functionality. Before deciding how to attack a conflict interactively, odds are that you'd like to see exactly what is in conflict.
Two of the commands available at the interactive conflict resolution prompt can assist you here. The first line of the diff content shows the previous contents of the working copy the BASE revision , the next content line is your change, and the last content line is the change that was just received from the server usually the HEAD revision. Additionally, this command uses a slightly different display format for the conflict regions which allows you to more easily compare the file's contents in those regions as they would appear in each of three states: original and unedited; with your local changes applied and the server's conflicting changes ignored; and with only the server's incoming changes applied and your local, conflicting changes reverted.
After reviewing the information provided by these commands, you're ready to move on to the next action. The main way to resolve conflicts interactively is to use an internal file merge tool. The tool asks you what to do with each conflicting change and allows you to selectively merge and edit changes. However, there are several other different ways to resolve conflicts interactively—two of them allow you to selectively merge and edit changes using external editors, the rest of which allow you to simply pick a version of the file and move along.
Internal merge tool combines all of the available ways to resolve conflicts. You've already reviewed the conflicting changes, so it's now time to resolve the conflicts. The command displays the conflicting areas and allows you to choose from a number of options to resolve the conflicts area-by-area:.
As you can see, when you use the internal file merge tool, you can cycle through individual conflicting areas in the file and select various resolution options or postpone conflict resolution for selected conflicts. There is also a pair of compromise options available. Finally, if you decide that you don't need to merge any changes, but just want to accept one version of the file or the other, you can either choose your changes a.
This may sound like an appropriate section for avoiding marital disagreements, but it's actually still about Subversion, so read on. If you're doing an update and encounter a conflict that you're not prepared to review or resolve, you can type p to postpone resolving a conflict on a file-by-file basis when you run svn update.
If you know in advance that you don't want to resolve any conflicts interactively, you can pass the --non-interactive option to svn update , and any file in conflict will be marked with a C automatically. Beginning with Subversion 1.
Therefore, you can postpone conflict resolution area-by-area, not just on a file-to-file basis. When you postpone a conflict resolution, svn typically does three things to assist you in noticing and resolving that conflict:.
Subversion prints a C during the update and remembers that the file is in a state of conflict. Subversion uses the svn:mime-type property to decide whether a file is capable of contextual, line-based merging. For every conflicted file, Subversion places three extra unversioned files in your working copy:. This is the file as it existed in your working copy before you began the update process. It contains any local modifications you had made to the file up to that point.
If Subversion considers the file to be unmergeable, the. This is the file as it existed in the BASE revision—that is, the unmodified revision of the file in your working copy before you began the update process—where OLDREV is that base revision number. This is the file that your Subversion client just received from the server via the update of your working copy, where NEWREV corresponds to the revision number to which you were updating HEAD , unless otherwise requested.
For example, Sally makes changes to the file sandwich. Meanwhile, Harry commits changes to that same file. Sally updates her working copy before committing and she gets a conflict, which she postpones:.
At this point, Subversion will not allow Sally to commit the file sandwich. If you've postponed a conflict, you need to resolve the conflict before Subversion will allow you to commit your changes.
You'll do this with the svn resolve command. This command accepts the --accept option, which allows you specify your desired approach for resolving the conflict. Prior to Subversion 1. This means the file was scheduled for deletion, and then a new file with the same name was scheduled for addition in its place.
The contents as opposed to the properties of the item conflict with updates received from the repository. Item is being ignored e. Item is missing e. This also indicates that a directory is incomplete a checkout or update was interrupted. Item is versioned as one kind of object file, directory, link , but has been replaced by a different kind of object. Properties for this item are in conflict with property updates received from the repository.
When --show-updates -u is used, this means the file is not locked. If --show-updates -u is not used, this merely means that the file is not locked in this working copy. File is locked either by another user or in another working copy. This appears only when --show-updates -u is used. The file is currently locked in the repository.
This gets all the paths mentioned on the branch since its branch point. Note it will list deleted and added, as well as modified files. I just used this to get the stuff I should worry about reviewing on a slightly messy branch from a new dev. I do this as a two-step process. First, I find the version that was the origin of the branch.
From within the checkout of the branch:. The number that begins with an 'r' is the revision at which you branched. Then, use svn diff to find changes since that version:. If you want to see the actual diff, just remove the --summarize option.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. What svn command would list all the files modified on a branch? Ask Question. Asked 13 years, 1 month ago. Active 4 months ago. Viewed k times. Improve this question. Trenton Trenton I come back to this question rather often and the most helpful answer is the one deleted from AndrewMedico , with svn log :-D — Daniel W.
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