reimplement gita clone #202 (#216)

* reimplement gita clone #202

The previous `gita clone config-file` corresponds to `gita clone -f config-file`

Now, by default
`gita clone <url>` translates to `git clone <url>` at the current
working directory

Also add `-C` option for changing current working directory before execution

README.md

@@ -71,8 +71,10 @@ The bookkeeping sub-commands are
 - `gita add -b <bare-repo-path(s)>`: add bare repo(s) to `gita`. See the [customization section](#custom) for more details on setting custom worktree.
 - `gita add -r <repo-parent-path(s)>`: add repo(s) in <repo-parent-path(s)> recursively
 - `gita clear`: remove all groups and repos
-- `gita clone <config-file>`: clone repos in `config-file` (generated by `gita freeze`) to current directory.
-- `gita clone -p <config-file>`: clone repos in `config-file` to prescribed paths.
+- `gita clone <URL>`: clone repo from `URL` at current working directory
+- `gita clone <URL> -C <directory>`: change to `directory` and then clone repo
+- `gita clone -f <config-file>`: clone repos in `config-file` (generated by `gita freeze`) to current directory.
+- `gita clone -p -f <config-file>`: clone repos in `config-file` to prescribed paths.
 - `gita context`: context sub-command
     - `gita context`: show current context
     - `gita context <group-name>`: set context to `group-name`, all operations then only apply to repos in this group

doc/README_CN.md

@@ -58,8 +58,10 @@
   [customization section](#custom)
 - `gita add -r <repo-parent-path(s)>`: 递归添加路径下的所有库
 - `gita clear`:
-- `gita clone <config-file>`: 克隆`<config-file>` (由`gita freeze`生成)里的库
-- `gita clone -p <config-file>`: 克隆`<config-file>`里的库并放到指定路径
+- `gita clone <URL>`:
+- `gita clone <URL> -C <directory>`:
+- `gita clone -f <config-file>`: 克隆`<config-file>` (由`gita freeze`生成)里的库
+- `gita clone -p -f <config-file>`: 克隆`<config-file>`里的库并放到指定路径
 - `gita context`: 情境命令
     - `gita context`: 显示当前的情境
     - `gita context none`: 去除情境