Upgrade Composer

[Anita Damelio]

Ifthere is a composer.lock file in the current directory, it will use theexact versions from there instead of resolving them. This ensures thateveryone using the library will get the same versions of the dependencies.

In order to get the latest versions of the dependencies and to update thecomposer.lock file, you should use the update command. This command is alsoaliased as upgrade as it does the same as upgrade does if you are thinkingof apt-get or similar package managers.

Note that with the above all packages will be updated. If you only want toupdate the package(s) for which you provide custom constraints using --with,you can skip --with and instead use constraints with the partial update syntax:

Note: For packages also required in your composer.json the custom constraintmust be a subset of the existing constraint. The composer.json constraints stillapply and the composer.json is not modified by these temporary update constraints.

Specifying one of the words mirrors, lock, or nothing as an argument has the same effect as specifying the option --lock, for example composer update mirrors is exactly the same as composer update --lock.

The bump command increases the lower limit of your composer.json requirementsto the currently installed versions. This helps to ensure your dependencies do notaccidentally get downgraded due to some other conflict, and can slightly improvedependency resolution performance as it limits the amount of package versionsComposer has to look at.

Running this blindly on libraries is NOT recommended as it will narrow downyour allowed dependencies, which may cause dependency hell for your users.Running it with --dev-only on libraries may be fine however as dev requirementsare local to the library and do not affect consumers of the package.

The reinstall command looks up installed packages by name,uninstalls them and reinstalls them. This lets you do a clean installof a package if you messed with its files, or if you wish to changethe installation type using --prefer-install.

The check-platform-reqs command checks that your PHP and extensions versionsmatch the platform requirements of the installed packages. This can be usedto verify that a production server has all the extensions needed to run aproject after installing it for example.

Lists all packages suggested by the currently installed set of packages. You canoptionally pass one or multiple package names in the format of vendor/packageto limit output to suggestions made by those packages only.

The prohibits command tells you which packages are blocking a given packagefrom being installed. Specify a version constraint to verify whether upgradescan be performed in your project, and if not why not. See the followingexample:

setting-key is a configuration option name and setting-value1 is aconfiguration value. For settings that can take an array of values (likegithub-protocols), multiple setting-value arguments are allowed.

To create a new project using Composer you can use the create-project command.Pass it a package name, and the directory to create the project in. You can alsoprovide a version as a third argument, otherwise the latest version is used.

Additionally, it can dump an optimized autoloader that converts PSR-0/4 packagesinto classmap ones for performance reasons. In large applications with manyclasses, the autoloader can take up a substantial portion of every request'stime. Using classmaps for everything is less convenient in development, butusing this option you can still use PSR-0/4 for convenience and classmaps forperformance.

You can set a number of environment variables that override certain settings.Whenever possible it is recommended to specify these settings in the configsection of composer.json instead. It is worth noting that the env vars willalways take precedence over the values specified in composer.json.

If set to 1, this env disables the warning about running commands as root/super user.It also disables automatic clearing of sudo sessions, so you should really only set thisif you use Composer as a super user at all times like in docker containers.

The COMPOSER_AUTH var allows you to set up authentication as an environment variable.The contents of the variable should be a JSON formatted object containing http-basic,github-oauth, bitbucket-oauth, ... objects as needed,and following thespec from the config.

You may put a config.json file into the location which COMPOSER_HOME pointsto. Composer will partially (only config and repositories keys) merge thisconfiguration with your project's composer.json when you run the install andupdate commands.

This lets you hint under which environment Composer is running, which can help Composerwork around some environment specific issues. The only value currently supported isvirtualbox, which then enables some short sleep() calls to wait for the filesystemto have written files properly before we attempt reading them. You can set theenvironment variable if you use Vagrant or VirtualBox and experience issues with files notbeing found during installation even though they should be present.

Set to an integer to configure how many files can be downloaded in parallel. Thisdefaults to 12 and must be between 1 and 50. If your proxy has issues withconcurrency maybe you want to lower this. Increasing it should generally not resultin performance gains.

If COMPOSER_IGNORE_PLATFORM_REQS set to 1, it is the equivalent of passing the --ignore-platform-reqs argument.Otherwise, specifying a comma separated list in COMPOSER_IGNORE_PLATFORM_REQ will ignore those specific requirements.

For example, if a development workstation will never run database queries, this can be used to ignore the requirement for the database extensions to be available. If you set COMPOSER_IGNORE_PLATFORM_REQ=ext-oci8, then composer will allow packages to be installed even if the oci8 PHP extension is not enabled.

I am using Composer for my PHP project. I am new to Composer. Now when I update my dependencies using composer update command, it is saying that my Composer version is too old and ask me to update. So I tried as below. But all failed.

In Google Cloud CLI, API, or Terraform, you can upgrade an environmentto the latest supported versions, three previous versions ofCloud Composer, and to versions with an extended upgradetimeline. It's not possible to upgrade to other versions ofCloud Composer, even if they are still supported and can be usedto create a new environment.

The Compute Engine API quota limits can prevent upgrades.In Google Cloud console, navigate to the IAM and Admin> Quotas and System Limits page and check if theCompute Engine API quota for CPU is not exceeded. If thequota threshold is being approached, request Quota extension beforeproceeding with upgrade operation.

Make sure that you know the differences betweenthe current versions of Airflow and Cloud Composer and theversions that you are upgrading to.The new version can include different versions of preinstalledpackages, patches from Cloud Composer, or changes in Airflowfunctionality, provided by the Airflow open source project. You cancheck the versions of provider packages that are included ina specific version.

Make sure that your DAGs are compatible with the new Airflow version andnew versions of all provider packages (including the Airflow providerpackage for Google Cloud and Google services). Incompatible changes cancause your DAGs to no longer work.

During an upgrade operation, all running tasks are terminated.After the upgrade is completed, Airflow schedules these tasks for a retry,depending on the way you configure retries for your DAGs.

Do not upgrade GKE clusters of yourCloud Composer environments to newer versions. Use theGKE version that was pre-configured during the environmentcreation and rely on auto-upgrades of the GKE service.

Your account must have a role that can trigger environment upgradeoperations. In addition, the service account of the environment must have arole that has enough permissions to perform upgrade operations. For moreinformation, see Access control.

Cloud Composer keeps track of theCloud Composer image versionthat your environment is based on. When it approaches theend of support date,you can see a warning in the list of environments and on theEnvironment details page.

This feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the Service Specific Terms. Pre-GA features are available "as is" and might have limited support. For more information, see the launch stage descriptions.

A successful check means that there are no conflicts in PyPI packagedependencies between the current and the specified version. However, anupgrade operation might still not be successful because of other reasons.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

I've been using Drupal for several years, but only just dipping a toe in with Drush - I've bought an ebook tutorial and working my way through. I've installed Composer, and used it to install Drush. The tutorial book specified a particular build of Drush to install (7.0.0-alpha5). I've navigated to a drupal folder and run

SO I've navigated into the .composer/vendor/drush/drush folder and run composer global updatebut composer says nothing to update, confirming the version as 7.0.0-alpha5 - I assume this is not the latest 7.x version, so do I need something changing in the composer.json file?

For my needs, I needed 8.1.14, at minimum. Since the latest stable version was 8.1.15 as of now, I simply ran this: composer require drush/drush:8.1.15. This ran fine, and then checking by drush --version, which registered the proper version then.

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