= Uploading LibreOffice API to Maven Central This file documents the prerequisites and workflow to upload LibreOffice API to Maven Central or local Maven repository. To install LibreOffice API to local Maven repository or deploy the API to the Maven Central, extra build toolchain is required. `Ant` is used to bootstrap `Buck` build tool. `Buck` build tool is used to build sources and javadocs for the API and install or deploy the artifacts to Maven repository. `Maven` commands are invoked for that from within `Buck` driven build - so make sure you've maven installed, too. To be able to upload the API to Maven Central, access must be granted to LibreOffice project on OSSRH. == Buck `Buck` is new build tool that uses Python to write build files. It is maintained by Facebook and is available under Apache 2 license. === Installing Buck There is currently no binary distribution of `Buck`, so it has to be manually built and installed. Apache Ant and gcc are required. Clone the git and build it: ---- git clone https://github.com/facebook/buck cd buck ant ---- If you don't have a `bin/` directory in your home directory, create one: ---- mkdir ~/bin ---- Add the `~/bin` folder to the path: ---- PATH=~/bin:$PATH ---- Note that the buck executable needs to be available in all shell sessions, so also make sure it is appended to the path globally. Add a symbolic link in `~/bin` to the buck and buckd executables: ---- ln -s `pwd`/bin/buck ~/bin/ ln -s `pwd`/bin/buckd ~/bin/ ---- Verify that `buck` is accessible: ---- which buck ---- To enable autocompletion of buck commands, install the autocompletion script from `./scripts/buck_completion.bash` in the buck project. Refer to the script's header comments for installation instructions. === Prerequisites Buck requires Python version 2.7 to be installed. The Maven download toolchain requires `curl` to be installed. === Using Buck daemon Buck ships with a daemon command `buckd`, which uses the link:https://github.com/martylamb/nailgun[Nailgun] protocol for running Java programs from the command line without incurring the JVM startup overhead. Using a Buck daemon can save significant amounts of time as it avoids the overhead of starting a Java virtual machine, loading the buck class files and parsing the build files for each command. It is safe to run several buck daemons started from different project directories and they will not interfere with each other. Buck's documentation covers daemon in http://facebook.github.io/buck/command/buckd.html[buckd]. To use `buckd` the additional link:https://facebook.github.io/watchman[watchman] program must be installed. To disable `buckd`, the environment variable `NO_BUCKD` must be set. It's not recommended to put it in the shell config, as it can be forgotten about it and then assumed Buck was working as it should when it should be using buckd. Prepend the variable to Buck invocation instead: ---- NO_BUCKD=1 buck build api ---- === Installing watchman Watchman is used internally by Buck to monitor directory trees and is needed for buck daemon to work properly. Because buckd is activated by default in the latest version of Buck, it searches for the watchman executable in the path and issues a warning when it is not found and kills buckd. To prepare watchman installation on Linux: ---- git clone https://github.com/facebook/watchman.git cd watchman ./autogen.sh ---- To install it in user home directory (without root privileges): ---- ./configure --prefix $HOME/watchman make install ---- To install it system wide: ---- ./configure make sudo make install ---- Put $HOME/watchman/bin/watchman in path or link to $HOME/bin/watchman. To install watchman on macOS: ---- brew install --HEAD watchman ---- See the original documentation for more information: link:https://facebook.github.io/watchman/docs/install.html[Watchman installation]. === Override Buck's settings Additional JVM args for Buck can be set in `.buckjavaargs` in the project root directory. For example to override Buck's default 1GB heap size: ---- cat > .buckjavaargs < sonatype-nexus-staging USER PASSWORD ---- * Request permissions to upload artifacts to the `org.libreoffice` repository on Maven Central: Ask for this permission by adding a comment on the link:https://issues.sonatype.org/browse/OSSRH-19129[OSSRH-19129] Jira ticket at Sonatype. The request needs to be approved by someone who already has this permission by commenting on the same issue. * Generate and publish a PGP key Generate and publish a PGP key as described in link:http://central.sonatype.org/pages/working-with-pgp-signatures.html[ Working with PGP Signatures]. Please be aware that after publishing your public key it may take a while until it is visible to the Sonatype server. The PGP key is needed to be able to sign the artifacts before the upload to Maven Central. The PGP passphrase can be put in `~/.m2/settings.xml`, or alternatively make gpg use the agent to provide and cache the credentials: ---- gpg gpg2 mypassphrase mykeynameoremail true gpg ---- It can also be included in the key chain on macOS. == Update Versions Before publishing new artifacts to Maven Central, `LIBREOFFICE_VERSION` in the `VERSION` file must be updated, e.g. change it from `5.0.0` to `5.1.0`. In addition the version must be updated in a number of pom.xml files. To do this run the `./solenv/bin/version.py` script and provide the new version as parameter, e.g.: ---- ./solenv/bin/version.py 5.1.0 ---- == Build LibreOffice Build LibreOffice as usually, so that API JARs are created. == Publish the LibreOffice artifacts to local Maven repository Execute this command to install LibreOffice API to your local Maven repository. For troubleshooting, the environment variable `VERBOSE` can be set: ---- VERBOSE=1 buck build api_install ---- Once executed, the local Maven repository contains the LibreOffice API artifacts: ---- $ ls -1 ~/.m2/repository/org/libreoffice/unoil/5.1.0/ _maven.repositories unoil-5.1.0.jar unoil-5.1.0-javadoc.jar unoil-5.1.0.pom unoil-5.1.0-sources.jar ---- == Publish the LibreOffice artifacts to Maven Central * Make sure you have done the configuration for deploying to Maven Central. * Make sure that the version is updated in the `VERSION` file and in the `pom.xml` files as described above. Push the API to Maven Central: ---- buck build api_deploy ---- For troubleshooting, the environment variable `VERBOSE` can be set. This prints out the commands that are executed by the Buck build process: ---- VERBOSE=1 buck build api_deploy ---- If no artifacts are uploaded, clean the `buck-out` folder and retry: ---- rm -rf buck-out ---- * To where the artifacts are uploaded depends on the `LIBREOFFICE_VERSION` in the `VERSION` file: ** SNAPSHOT versions are directly uploaded into the Sonatype snapshots repository and no further action is needed: https://oss.sonatype.org/content/repositories/snapshots/org/libreoffice/ ** Release versions are uploaded into a staging repository in the link:https://oss.sonatype.org/[Sonatype Nexus Server]. * Verify the staging repository ** Go to the link:https://oss.sonatype.org/[Sonatype Nexus Server] and sign in with your Sonatype credentials. ** Click on 'Build Promotion' in the left navigation bar under 'Staging Repositories' and find the `orglibreoffice-XXXX` staging repository. ** Verify its content While the staging repository is open you can upload further content and also replace uploaded artifacts. If something is wrong with the staging repository you can drop it by selecting it and clicking on `Drop`. ** Run Sonatype validations on the staging repository Select the staging repository and click on `Close`. This runs the Sonatype validations on the staging repository. The repository will only be closed if everything is OK. A closed repository cannot be modified anymore, but you may still drop it if you find any issues. ** Test closed staging repository Once a repository is closed you can find the URL to it in the `Summary` section, e.g. https://oss.sonatype.org/content/repositories/orglibreoffice-4711 Use this URL for further testing of the artifacts in this repository, e.g. to try building an extension against this API in this repository update the version in the `pom.xml` and configure the repository: ---- mexus-staging-repository https://oss.sonatype.org/content/repositories/orglibreoffice-4711 ---- * Release the staging repository How to release a staging repository is described in the link:https://docs.sonatype.org/display/Repository/Sonatype+OSS+Maven+Repository+Usage+Guide#SonatypeOSSMavenRepositoryUsageGuide-8.a.2.ReleasingaStagingRepository[ Sonatype OSS Maven Repository Usage Guide]. [WARNING] Releasing artifacts to Maven Central cannot be undone! ** Find the closed staging repository in the link:https://oss.sonatype.org/[Sonatype Nexus Server], select it and click on `Release`. ** The released artifacts are available in https://oss.sonatype.org/content/repositories/releases/org/libreoffice/ ** It may take up to 2 hours until the artifacts appear on Maven Central: http://central.maven.org/maven2/org/libreoffice/ * [optional]: View download statistics ** Sign in to the link:https://oss.sonatype.org/[Sonatype Nexus Server]. ** Click on 'Views/Repositories' in the left navigation bar under 'Central Statistics'. ** Select `org.libreoffice` as `Project`. ion value='feature/barcode'>feature/barcode LibreOffice 核心代码仓库文档基金会
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