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Merge pull request #960 from hanoii/composer 

Improving composer cheatsheet
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Rico Sta. Cruz 2018-12-25 20:34:00 +08:00 committed by GitHub
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@ -12,38 +12,47 @@ description: |
All composer commands, depending on your install, may need to use `php composer.phar` in the install folder for composer, instead of plain `composer`.
### Package management
### Installing dependencies
| Command | Description |
| --- | --- |
| `composer install` | Install everything in composer.json |
| `composer install` | Downloads and installs all the libraries and dependencies outlined in the `composer.lock` file. If the file does not exist it will look for composer.json and do the same, creating a `composer.lock` file. |
| --- | --- |
| `composer install laravel` | Install a package |
| `composer install laravel --dry-run` | Simulates the install without installing anything |
| `composer install laravel --no-scripts`| Skips post-download scripts |
| `composer install --dry-run` | Simulates the install without installing anything |
### Updating
This command doesn't change any file. If `composer.lock` is not present, it will create it.
| Command | Description |
| --- | --- |
| `composer update` | Update all packages |
| --- | --- |
| `composer update laravel` | Update a certain package |
| `composer update vendor/*`| Update all packages in a folder |
| `composer update --lock` | Update lock file hash without updating any packages |
`composer.lock` **should always** be committed to the repository. It has all the information needed to bring the
local dependencies to the last committed state. If that file is modified on the repository, you will need to run
`composer install` again after fetching the changes to update your local dependencies to those on that file.
### Updating packages
| Command | Description |
| --- | --- |
| `composer update` | Updates all packages |
| `composer update --with-dependencies` | Updates all packages and its dependencies |
| --- | --- |
| `composer update vendor/package` | Updates a certain `package` from `vendor` |
| `composer update vendor/*` | Updates all packages from `vendor` |
| `composer update --lock` | Updates `composer.lock` hash without updating any packages |
### Requiring
This command changes only the `composer.lock` file.
### Adding packages
| Command | Description |
| --- | --- |
| `composer require laravel`. | Add new package to composer.json and install it |
| `composer require vendor/package`. | Adds `package` from `vendor` to composer.json's `require` section and installs it |
| --- | --- |
| `composer require laravel --dev` | Add new package to `require-dev` and install it. |
| `composer require vendor/package --dev` | Adds `package` from `vendor` to composer.json's `require-dev` section and installs it. |
### Removing
This command changes both the `composer.json` and `composer.lock` files.
### Removing packages
| Command | Description |
| --- | --- |
| `composer remove laravel` | Remove new package from composer.json and uninstall it |
| `composer remove vendor/package` | Removes `vendor/package` from composer.json and uninstalls it |
This command changes both the `composer.json` and `composer.lock` files.