1# Contribution Process<a name="EN-US_TOPIC_0000001052970939"></a> 2 3## Preparations<a name="section124971410183614"></a> 4 5- Install, configure, and use Git. For details, visit [https://gitee.com/help/categories/43](https://gitee.com/help/categories/43). 6- Register an SSH public key. For details, visit [https://gitee.com/help/articles/4191](https://gitee.com/help/articles/4191). 7- Find the repository that you are interested in on the code hosting platform of OpenHarmony. 8 9## Downloading Code<a name="section6125202333611"></a> 10 11## Forking a Code Branch from the Cloud<a name="section8365811818"></a> 12 131. Find and open the homepage of the repository. 142. Click the **Fork** button in the upper right corner, and create an individual cloud fork branch as prompted. 15 16## Downloading the Fork Repository to the Local Host<a name="section49051646201819"></a> 17 18Perform the following steps to download the code in the repository to your computer: 19 201. Create a local working directory. 21 22 A local working directory is used for searching and managing local code. 23 24 ``` 25 mkdir ${your_working_dir} 26 ``` 27 282. Clone the remote repository to the local host. 29 1. Switch to the local path. 30 31 ``` 32 mkdir -p ${your_working_dir} 33 cd ${your_working_dir} 34 ``` 35 36 2. Clone the remote repository. 37 - You can copy the address of the remote repository on the repository page. 38 39  40 41 - Run the following command on the local host: 42 43 ``` 44 git clone $remote_link 45 ``` 46 47 48 49 50## Using the repo Tool to Download Code Repositories in Batches<a name="section15763252468"></a> 51 521. Download the repo tool. \(For details, see [https://gitee.com/help/articles/4316](https://gitee.com/help/articles/4316).\) 53 54 ``` 55 curl https://gitee.com/oschina/repo/raw/fork_flow/repo-py3 > /usr/local/bin/repo 56 chmod a+x /usr/local/bin/repo 57 pip install -i https://pypi.tuna.tsinghua.edu.cn/simple requests 58 ``` 59 602. Download code repositories. \(There is no **repo branch** parameter.\) 61 62 ``` 63 repo init -u https://gitee.com/openharmony/manifest.git -b master 64 repo sync -c 65 ``` 66 67 68## Committing Code<a name="section338918220422"></a> 69 70## Committing a Repository \(git clone\)<a name="section669715742719"></a> 71 721. **Update the branch.** 73 74 Update your local branch. 75 76 ``` 77 git remote add origin $remote_link 78 git fetch origin 79 git checkout master 80 git pull --rebase 81 ``` 82 83 Update the local debugging branch \(**myfeature** branch\) based on the remote **master** branch. 84 85 ``` 86 git branch myfeature origin/master 87 git checkout myfeature 88 ``` 89 90 Then, edit and modify the code in the **myfeature** branch. 91 922. **Commit the changes in the local working directory.** 93 94 ``` 95 git add . 96 git commit -sm "xxxxxx" // Commit changes with a message containing the signoff email address. 97 ``` 98 99 You may continue to edit and test more content after the previous commit. You can use **commit --amend** to commit these changes. 100 1013. **Push the changes to your remote directory.** 102 103 If you plan to review \(or just establish a remote backup of your work\), push the branch to your fork repository: 104 105 ``` 106 git push -f origin myfeature 107 ``` 108 109 110## Committing Multiple Repositories \(repo init/sync\)<a name="section6560046192910"></a> 111 1121. Configure the token of the global environment. 113 114``` 115repo config --global repo.token {TOKEN} 116``` 117 118The token is generated by choosing **Settings** \> **Security Settings** \> [**Private Token**](https://gitee.com/profile/personal_access_tokens) on Gitee. Example: 119 120``` 121repo config --global repo.token 211XXXXXXXXXXXXXXXXXXXXXXXX 122``` 123 1242. Create an issue under any repository to be modified on Gitee, and record the issue number \(for example, \#I1TVV4 in the following figure\). \(The issue provides a function similar to change ID of Gerrit and is used to associate multiple repositories to be modified. Skip this step if modification of multiple repositories is not involved.\) 125 1263. Create a branch in the local code workspace, modify the code, and commit the changes. 127 128``` 129repo start branchname --all 130``` 131 132After the code is modified, run the following command in multiple repositories: 133 134``` 135git add . 136git commit -sm "xxxxxx" 137``` 138 139Alternatively, use the repo tool to batch add or commit the changes in the root directory of the code project: 140 141``` 142repo forall -c 'git add .' 143repo forall -c 'git commit -sm "xxxxxx"' 144``` 145 1464. Push the code. \(repo upload is not supported.\) 147 148Specify whether to directly generate a pull request \(PR\) during code push. The value **False** indicates that a PR is not directly generated and needs to be manually generated in the fork warehouse. The value **True** indicates that a PR is generated when the code is pushed to the fork repository. 149 150``` 151repo config repo.pullrequest {True/False} 152``` 153 154For example, if the PR is generated when the push code is selected, run the following command: 155 156``` 157repo config repo.pullrequest True 158``` 159 160Run the following command to push the code: 161 162``` 163repo push --br={BRANCH} --d={DEST_BRANCH} --content={PR_CONTENT} 164``` 165 166**BRANCH** indicates the local branch, **DEST\_BRANCH** indicates the destination branch \(trunk branch\), which is usually **master**, and **PR\_CONTENT** indicates the PR description. If multi-repository committing is involved, the issue number must be entered. Example: 167 168``` 169repo push --br="20200903" --d="master" --content="#I1TVV4" 170``` 171 172On the editing page displayed, open the comment tags for the repository, branch, and commit. 173 174 175 176Save the settings and exit. The repo tool automatically pushes the local branch to the remote fork repository \(creates a fork repository if there is no fork repository\) and generates a PR. 177 178 179 180The tool automatically associates the PR with the issue. 181 182## Creating a Pull Request<a name="section28261522124316"></a> 183 184Access the fork repository on Gitee, click the button for creating a PR, and select the **myfeature** branch to generate a PR. \(Skip this step if a PR has been automatically created using the repo tool.\) 185 186For details, visit [https://gitee.com/help/articles/4128](https://gitee.com/help/articles/4128). 187 188> **NOTICE** 189> 190>**How do I create PRs at the same time if multiple code repositories have compilation dependencies?** 191>During the development of the operating system \(OS\), it is common that multiple code repositories have compilation dependencies. Therefore, the PRs need to be created and merged at the same time. For this reason, Gitee uses issues as the dependency identifiers for code repositories with compilation dependencies to commit the PRs. Follow the operations below: 192> 193>1. Create an issue in any of the code repositories. 194>2. Associate PRs that need to be built and merged at the same time with the issue. For details, visit [https://gitee.com/help/articles/4142](https://gitee.com/help/articles/4142). 195>3. After the build is triggered, the build center identifies the PRs associated with the same issue, downloads the build, and merges the PRs into the code library after the code is approved. 196 197## Building Access Control<a name="section981124754415"></a> 198 199## Creating an Issue<a name="section979820334458"></a> 200 2011. Go to the homepage of the repository. 2022. Click the **Issues** tab in the upper left corner. Then, click the issue creation button on the right, and create a dedicated task as prompted to execute continuous integration \(CI\) access control for associated code \(feature development/bug fixing\). 203 204## Associating the Issue with the PR<a name="section5470144853615"></a> 205 206When creating a PR or compiling an existing PR, enter **\#+I+_five-digit issue ID_** in the description box to associate the issue with the PR. 207 208**Constraints** 209 210- One PR can be associated with only one issue. Otherwise, CI cannot be triggered. 211- If feature development or bug fixing involves multiple code repositories, multiple PRs can be associated with the same issue. 212- Among the PRs associated with the issue, no PR that has been merged or closed is allowed. Otherwise, the CI cannot be triggered. 213- If an issue has been associated with a merged or closed PR, the issue cannot be reused. In this case, create another issue and associate it with an open PR. 214 215## Triggering Code Access Control<a name="section11163175420406"></a> 216 217Comment "start build" in the PR to trigger CI access control. 218 219If multiple PRs are associated with the same issue, the comment "start build" on any PR can trigger the CI access control of the issue. 220 221After the access control is executed, the execution result will be automatically commented in all the PRs associated with the issue. 222 223If the access control is passed, all PRs associated with the issue will be automatically marked as "Passed". 224 225## CI Portal 226 227The continuous integration (CI) portal is a platform where you can promptly view and analyze the execution results of code access control and daily build. 228 229On the CI portal, you can detect code bugs in a timely manner to ensure code reliability and function stability. The CI portal provides the following functions: 230 231- Code Access Control: After submitting a merge request to commit code, code access checks, such as the static code check, code build, and function test, are triggered. Code can be committed only after all checks are passed. 232 233 234- Daily Build: The continuous integration pipeline is automatically executed every day to detect issues with static code, code build, and functions in advance, thereby allowing you to resolve these issues in time to ensure high code quality. 235 236Visit [CI portal](http://ci.openharmony.cn/#/pipeLine). 237 238## Reviewing Code<a name="section17823849145014"></a> 239 240For details, visit [https://gitee.com/help/articles/4304](https://gitee.com/help/articles/4304). 241 242Related topic: [FAQs](FAQ.md) 243 244
