问题
What is the difference a changeset and a patch?
I was using hg today and I noticed the import command mentions that it is used to "import an ordered set of patches."
What is a patch?
回答1:
Changeset typically refers to the internal representation. Thus, hg unbundle, which processes mercurial-specific files, "applies one or more changegroup files." A changegroup is simply a group of changesets.
Patches are plain text in standard formats (e.g. produced by diff). Note that the patch command can be used to process these plaintext files (independent of revision control).
来源：https://stackoverflow.com/questions/3048899/difference-between-a-changeset-and-a-patch