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Hex is package manager for the Erlang VM.

This project currently provides tasks that integrate with Mix, Elixir's build tool.

See for installation instructions and other documentation.


Install Hex locally for development with: mix install.

Bundled CA certs

Hex bundles a list of root CA certificates used for certificate validation in HTTPS. The certificates are fetched from Mozilla's source tree with curl's script. The bundle created from the Perl script is stored in lib/hex/http/ca-bundle.crt and is included in source control, the file should be updated when new releases are made by Mozilla. When Hex is compiled the certificates are parsed and included with the compiled artifacts. The task mix certdata automates this process.


Integration tests run against the API server hexpm. It needs to be cloned into ../hexpm or HEXPM_PATH needs to be set and point its location. hexpm also requires postgresql with username postgres and password postgres.

Exclude integration tests with mix test --exclude integration.


Copyright 2015 Six Colors AB

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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