docs: avoid suggesting star dependencies.

A `*` version constraint makes it hard/impossible to release a breaking
change (e.g. clap 2.0) without causing people's code to break.  `cargo
update` with a `*` dependency will happily move from (say) 1.4 to 2.0,
even though semver says these may be a breaking change. Using a more
precise dependency constraint gives the crate author more flexibility in
making breaking changes, and makes users of the crate happier if/when
they do happen.

https://github.com/rust-lang/rfcs/pull/1241 contains a bit more
discussion about this.
This commit is contained in:
Huon Wilson 2015-10-01 22:31:21 +10:00
parent 32c9482a97
commit d33228f40b

View file

@ -365,7 +365,7 @@ fn main() {
If you were to compile any of the above programs and run them with the flag `--help` or `-h` (or `help` subcommand, since we defined `test` as a subcommand) the following would be output
**NOTE**: The YAML option requires adding a special `features` flag when compiling `clap` because it is not compiled by default since it takes additional dependencies that some people may not need. Simply change your `clap = "*"` to `clap = {version = "*", features = ["yaml"]}` in your `Cargo.toml` to use the YAML version.
**NOTE**: The YAML option requires adding a special `features` flag when compiling `clap` because it is not compiled by default since it takes additional dependencies that some people may not need. Simply change your `clap = "1"` to `clap = {version = "1", features = ["yaml"]}` in your `Cargo.toml` to use the YAML version.
```sh
$ myapp --help
@ -413,7 +413,7 @@ To test out `clap`'s default auto-generated help/version follow these steps:
*
```toml
[dependencies]
clap = "*"
clap = "1"
```
* Add the following to your `src/main.rs`
@ -436,7 +436,7 @@ For full usage, add `clap` as a dependency in your `Cargo.toml` file to use from
```toml
[dependencies]
clap = "*"
clap = "1"
```
Or track the latest on the master branch at github:
@ -457,7 +457,7 @@ If you'd like to keep your dependency list to **only** `clap`, you can disable a
```toml
[dependencies.clap]
version = "*"
version = "1"
default-features = false
```
@ -465,7 +465,7 @@ You can also selectively enable only the features you'd like to include, by addi
```toml
[dependencies.clap]
version = "*"
version = "1"
default-features = false
# Cherry-pick the features you'd like to use