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The history of my repository is very complex. I often find myself wanting to know if a certain commit from the past "is in" or "is reachable from" a certain revision (usually one of my heads)
How do I do this?
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hg commit creates a snapshot of the changes to 1 or more files in the local repository. Always write a log message when committing changes. hg diff displays differences between revisions. hg revert recovers old versions of files.
Description. The hg command provides a command line interface to the Mercurial system.
edit. Drops to the command prompt, allowing to edit files freely to commit some changes as a separate commit. When done, any remaining uncommitted changes will be committed as well. When done, run hg histedit --continue to finish this step or hg histedit --abort to abandon the new changes and keep the previous state.
You can use the revsets syntax. Suppose you want to ask if revision 4 is "reachable" from revision 9.
Simply do this:
hg log -r "descendants(4) and 9"
if it is reachable, you will see the log message for revision 9. If it is not, there will be no output.
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