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Updated documentation for depends/prohibits.

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Niels Keurentjes 2016-02-20 01:53:51 +01:00
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@ -337,16 +337,11 @@ php composer.phar depends doctrine/lexer
doctrine/common v2.6.1 requires doctrine/lexer (1.*)
```
If you want, for example, to find any installed package that is **not**
allowing Monolog to be upgraded to version 1.17 , try this:
You can optionally specify a version constraint after the package to limit the
search.
```sh
php composer.phar depends monolog/monolog -im ^1.17
There is no installed package depending on "monolog/monolog" in versions not matching 1.17
```
Add the `--tree` or `-t` flag to show a recursive tree of why the package is depended
upon, for example:
Add the `--tree` or `-t` flag to show a recursive tree of why the package is
depended upon, for example:
```sh
php composer.phar depends psr/log -t
@ -364,9 +359,36 @@ psr/log 1.0.0 Common interface for logging libraries
* **--recursive (-r):** Recursively resolves up to the root package.
* **--tree (-t):** Prints the results as a nested tree, implies -r.
* **--match-constraint (-m):** Filters the dependencies shown using this constraint.
* **--invert-match-constraint (-i):** Turns --match-constraint around into a blacklist
instead of a whitelist.
## prohibits
The `prohibits` command tells you which packages are blocking a given package
from being installed. Specify a version constraint to verify whether upgrades
can be performed in your project, and if not why not. See the following
example:
```sh
php composer.phar prohibits symfony/symfony 3.1
laravel/framework v5.2.16 requires symfony/var-dumper (2.8.*|3.0.*)
```
Note that you can also specify platform requirements, for example to check
whether you can upgrade your server to PHP 8.0:
```sh
php composer.phar prohibits php:8
doctrine/cache v1.6.0 requires php (~5.5|~7.0)
doctrine/common v2.6.1 requires php (~5.5|~7.0)
doctrine/instantiator 1.0.5 requires php (>=5.3,<8.0-DEV)
```
As with `depends` you can request a recursive lookup, which will list all
packages depending on the packages that cause the conflict.
### Options
* **--recursive (-r):** Recursively resolves up to the root package.
* **--tree (-t):** Prints the results as a nested tree, implies -r.
## validate