如何让 Composer 自动从我的本地存储库安装包的所有依赖项？

Question

我在 Ubuntu 上使用 Composer 1.6.3 并拥有以下全局 ~/.config/composer/config.json 文件：

{
    "config": {},
    "repositories": {
        "packagist": false,
        "codifier": {
          "type": "composer",
          "url": "file:///usr/local/codifier/library/PHP/Codifier"
        }
    }
}

换句话说，我禁用了 Packagist 并指向我自己本地机器上的存储库。这个本地存储库有一个 packages.json 定义所有可用的本地包：

{
  "packages": {
    "codifier/cache": {
      "dev-master": {
        "name": "codifier/cache",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Cache",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/cache",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Cache",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    },
    "codifier/environment": {
      "dev-master": {
        "name": "codifier/environment",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Environment",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/environment",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Environment",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    },
    "codifier/event": {
      "dev-master": {
        "name": "codifier/event",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Event",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/event",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Event",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    },
    "codifier/mime": {
      "dev-master": {
        "name": "codifier/mime",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Mime",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/mime",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Mime",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    },
    "codifier/net": {
      "dev-master": {
        "name": "codifier/net",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Net",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/net",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Net",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    },
    "codifier/number": {
      "dev-master": {
        "name": "codifier/number",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Number",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/number",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Number",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    },
    "codifier/persistence": {
      "dev-master": {
        "name": "codifier/persistence",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Persistence",
          "type": "git",
          "reference": "master"
        }
      },
      "0.1.0": {
        "name": "codifier/persistence",
        "version": "0.1.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Persistence",
          "type": "git",
          "reference": "v0.1.0"
        }
      }
    },
    "codifier/process": {
      "dev-master": {
        "name": "codifier/process",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Process",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/process",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Process",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    },
    "codifier/socket": {
      "dev-master": {
        "name": "codifier/socket",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Socket",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/socket",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Socket",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    },
    "codifier/stdlib": {
      "dev-master": {
        "name": "codifier/stdlib",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/StdLib",
          "type": "git",
          "reference": "master"
        }
      },
      "0.1.0": {
        "name": "codifier/stdlib",
        "version": "0.1.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/StdLib",
          "type": "git",
          "reference": "v0.1.0"
        }
      }
    },
    "codifier/text": {
      "dev-master": {
        "name": "codifier/text",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Text",
          "type": "git",
          "reference": "master"
        }
      },
      "1.0.0": {
        "name": "codifier/text",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Text",
          "type": "git",
          "reference": "v1.0.0"
        }
      }
    }
  }
}

到目前为止，这部分按预期工作。当我在随机文件夹中执行 $ composer show -a 时，我得到以下输出：

No composer.json found in the current directory, showing available packages from codifier
codifier/cache      
codifier/environment
codifier/event      
codifier/mime       
codifier/net        
codifier/number     
codifier/persistence
codifier/process    
codifier/socket     
codifier/stdlib     
codifier/text

所有这些包都定义了它们自己的依赖项。例如，codifier/socket 包的根目录中有以下composer.json 文件：

{
  "name": "codifier/socket",
  "authors": [ ##REDACTED## ],
  "require": {
    "php": ">=7.3.0",
    "codifier/event": "^1.0",
    "codifier/net": "^1.0",
    "codifier/process": "^1.0"
  },
  "autoload": {
    "psr-4": {
      "Codifier\\Socket\\": "src"
    }
  }
}

现在，我认为 Composer 的全部意义在于它会自动并递归地安装所有必需的依赖项，而不是我不得不再次手动 require 所有依赖项，但事实并非如此。

当我创建一个新的干净应用程序目录$ mkdir Test && cd Test 然后执行$ composer require codifier/socket 时，我得到这个输出：

Using version ^1.0 for codifier/socket
./composer.json has been created
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 1 install, 0 updates, 0 removals
  - Installing codifier/socket (1.0.0): Cloning v1.0.0 from cache
Writing lock file
Generating autoload files

...然后当我执行$ composer install 时，我得到以下输出：

Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Nothing to install or update
Generating autoload files

换句话说，只安装了codifier/socket，但没有安装它的依赖项。因此，Test/vendor 的内容现在是：

- codifier/
  - socket/

...当我期望的内容是：

- codifier/
  - socket/
  - event/
  - net/
  - process/
  etc.

...因为我希望 Composer 以递归方式获取所有必需的依赖项。

我也试过$ composer clear-cache，但这并没有什么不同，我想我还看到一些帖子建议我需要在composer.json 中为这个应用程序定义"repositories"，但这只是没有对我来说没有任何意义，因为我已经在我的全局 config.json 文件中指出了这些内容。

我在这里缺少什么？我是否错过了 Composer 的要点，因为我认为它会自动解析并自动安装所有必需的依赖项？

--- 更新 ---

我现在还尝试通过我的本地 Web 服务器提供这些包（当然，相应地更改了 json 文件中的所有 "url" 字段），因为我认为 Composer 可能无法处理 file://协议正确，但无济于事：它给出了完全相同的结果：它只安装 codifier/socket 并忽略它的依赖关系。

我不知道我还需要做什么才能使这个本地 packages.json 存储库正常工作。

Answer 1

我刚刚顿悟，终于想出了如何让它发挥作用，但感觉非常多余。我让它工作的方法是简单地将包的composer.json 文件中的"require" 信息复制到我的存储库的packages.json 文件中。

再次以codifier/socket包中的composer.json文件为例：

{
  "name": "codifier/socket",
  "authors": [ ##REDACTED## ],
  "require": {
    "php": ">=7.3.0",
    "codifier/event": "^1.0",
    "codifier/net": "^1.0",
    "codifier/process": "^1.0"
  },
  "autoload": {
    "psr-4": {
      "Codifier\\Socket\\": "src"
    }
  }
}

...packages.json 中的相关信息将变为：

{
  "packages": {

    ...

    "codifier/socket": {
      "dev-master": {
        "name": "codifier/socket",
        "version": "dev-master",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Socket",
          "type": "git",
          "reference": "master"
        },
        "require": {
          "php": ">=7.3.0",
          "codifier/event": "^1.0",
          "codifier/net": "^1.0",
          "codifier/process": "^1.0"
        }
      },
      "1.0.0": {
        "name": "codifier/socket",
        "version": "1.0.0",
        "source": {
          "url": "file:///usr/local/codifier/library/PHP/Codifier/Socket",
          "type": "git",
          "reference": "v1.0.0"
        },
        "require": {
          "php": ">=7.3.0",
          "codifier/event": "^1.0",
          "codifier/net": "^1.0",
          "codifier/process": "^1.0"
        }
      }
    },
    
    ...

  }
}

当我将它应用于所有包时，一切正常。

不过，我仍然不明白的是，为什么 Composer 没有从包本身的实际 composer.json 中提取此 "require" 信息。我知道文档状态Composer doesn't recursively follow repositories，但它肯定必须递归地遵循依赖关系，不是吗？不过，也许它根本就没有，这就是它的预期工作方式。

这一切都意味着我必须做更多的 git 解析才能为每个单独的包版本获取正确的数据，但就这样吧。¹⁾

这个解决方案也可能会引导我解决我遇到的自动加载问题，其中composer.json 中定义的"autoload" 命名空间也没有被选中。接下来我会尝试一下，如果也能解决这个问题，我会修改这个答案。

--- 更新 ---

正如预期的那样：当我将"autoload" 信息也合并到packages.json 中时，自动加载也开始工作了。

---

^{1) 我已经知道Satis，但我不想安装和学习另一个软件。}