如何拆分商品库？

Question

The format of the hg mv command is hg rename [OPTION]... SOURCE... DEST . Path names are relative to the current directory. Thus, when you are at a command prompt at the root directory and specify hg mv -n -I * A\\BZ , mercurial will create the directory Z under the root directory, and move A\\B\\readme.txt to Z\\readme.txt.

How can you specify, under Windows, that Z is the repository root directory? I tried using '.' as destination, ie hg mv -n -I * A\\B . but got a message that A\\B\\readme.txt will be copied to B\\readme.txt, not to readme.txt at the root. I tried using '~' as the destination, but hg mv -n -I * A\\B ~ got me a new directory named "~" below the root, obviously not what I wanted.

So my question is: How do I specify the repository root directory as the destination to the mercurial move command?

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edit : I'll try to clarify the issue.

I have an OldDev repository containing two products: Product-A and Product-B. Using the '~' symbol to denote OldDev's root folder, OldDev contains two folders: ~/Product-A and ~/Product-B (in addition, of course, to ~/.hg where its metadata is stored).

Each product is composed of a few projects, and each such project is assigned a folder under the product's folder. Thus Product-A has the Project-A, Project-B and Project-C, stored in ~/Product-A/Project-A, ~/Product-A/Project-B and ~/Product-A/Project-C, correspondingly. ~/Product-A/Project-A/xxx.cs is one of (Product-A's) Project-A's files.

Now I want to extract Project-A to its own NewDev repository. As it's the single project in NewDev, it makes no sense to retain the product/project hierarchy, so I want it to be at the root of NewDev: it xxx.cs file, for example, will be @/xxx.cs, where @ is the root folder of NewDev (the one contianing NewDev's .hg directory where NewDev's metadata is stored).

To extract Project-A to NewDev I used the the convert extension, as documented in " split a repository in two ". I used a mapfile containing the one mapping include Product-A/Project-A .

So far, NewDev is an exact subtree of OldDev. It does not contain ~/Product-B, it does not contain ~/Product-A/Project-B nor ~/Product-A/Project-C. It only contains ~/Product-A/Project-A. The files that remained are located at exactly the same paths as before, but only those files that belong to Product-A's Project-A were retained.

So, I've achieved half of my goals: I split OldDev, with its many products and projects, and created NewDev with only one project (Project-A). However, the files of Project-A are not at @ but at their old (OldDev) location @/Product-A/Project-A. I need to move them up two steps so xxx.cs, will be at @/xxx.cs and not at @/Product-A/Project-A/xxx.cs

To move the files I tried to use the hg mv command, but I can't figure how to specify the root (@) as the destination.

Solution : What worked for me, based on Marc Anton Dahmen's answer, is as follows:

convert1.txt: hg convert -s hg -d hg --filemap mapfile1.txt olddev temprepo
mapfile1.txt: include Product-A/Project-A

convert2.txt: hg convert -s hg -d hg --filemap mapfile2.txt temprepo newrepo
mapfile2.txt: rename Product-A/Project-A .

Where the text of convrert1.txt and convert2.txt, of course, shell commands.

Answer 1

您必须在文件映射中使用重命名指令，而不要像这样包含 ：

rename Project-A .

Answer 2

Moving every file in a repository and the repository data is not an hg mv operation because that cannot change where the repository meta-data is stored.

The wording of your question is still really ambiguous, but I have a decent guess as to what you want to do.

Suppose you have a repo called /some/dir/avi-repo and you really want it to be in /avi-repo. Use clone:

cd /
hg clone /some /avi-repo

Now you have two identical copies of the repo, one in /some/dir/avi-repo and one in /avi-repo . You can delete all of /some/dir/avi-repo now.

Your desire seems a little more complicated than that with a tree like:

/some
 ---- /.hg  # the repository meta-data
 ---- /dir  # no files in here just the sub-dir
 -------- /avi-repo
 ------------/file.c
 ------------/file.dat
 ------------/important-file.txt

And you want to move avi-repo to /some/avi-repo . You should be able to do that with the right sequence of mercurial commands, but it is far easier to:

mkdir /temp
cd /temp
hg clone /some /temp/avi-clone
rm -r /some
mkdir /some
hg clone /temp/avi-clone /some

Or some variant of that. The point is that repatriating an entire repository is not a job for hg mv .