如何使用Composer安装Composer？

Question

EDIT: solved, I have to use "dev-master" instead of "master" or "dev".

maybe this seems weird to you... but I'm trying to locally install composer using a global composer binary.

I'm trying to write something like:

composer require composer/composer

But this doesn't work, it tells me that needs the version. Then I've tried the following variations:

composer require composer/composer=*
composer require composer/composer=master
composer require composer/composer=dev

And... nothing, I obtain the following error message:

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - The requested package composer/composer could not be found in any version, there may be a typo in the package name.

Potential causes:
 - A typo in the package name
 - The package is not available in a stable-enough version according to your minimum-stability setting
   see <https://groups.google.com/d/topic/composer-dev/_g3ASeIFlrc/discussion> for more details.

Read <https://getcomposer.org/doc/articles/troubleshooting.md> for further common problems.

Installation failed, reverting ./composer.json to its original content.

Anyone has any idea if it's possible to do it in a "clean" way? (Allowing the following points):

• specifying a very concrete version
• registering it in the composer.json and composer.lock files
• placing the composer binary with other php binaries like behat ...

Answer 1

Don't understand why do you want this, but I think #EDIT : Saw why you need this. Ok.

"repositories": [
    {
        "type": "vcs",
        "url": "https://github.com/composer/composer.git"
    }
],
"require": {
    "composer/composer": "dev-master#775f6cd5c633facf2e7b99611fdcaa900b58ddb7"
}

would work.

You can view here the commit hash corresponding to different releases : https://github.com/composer/composer/releases

Answer 2

Ok, I've made a stupid mistake. I have to use "dev-master", not "dev" nor "master".

Sorry for this dumb question.

Answer 3

Well, it seems to me that you are trying to install composer using composer itself. That of course is not possible. To install composer you need to first download it from here . Once you have done that you will be able to install packages using the 'require' command.