oss-health-metrics:metrics:contributors
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oss-health-metrics:metrics:contributors [2017/05/16 16:52] klumbard |
oss-health-metrics:metrics:contributors [2017/09/09 23:45] GeorgLink Page permanently moved |
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| ====== Contributors ====== | ====== Contributors ====== | ||
| - | ===== 1. Description ===== | + | Page permanently moved to |
| - | Number of contributors | + | https://github.com/chaoss/metrics/blob/master/metrics/contributors.md |
| - | + | ||
| - | ===== 2. Use Cases ===== | + | |
| - | + | ||
| - | ===== 3. Sample Visualization ===== | + | |
| - | + | ||
| - | ===== 4. Sample Implementation ===== | + | |
| - | ===GHTorrent: Contributions by user === | + | |
| - | + | ||
| - | SQL | + | |
| - | # Gets the count of types of contributions by user, only returning users who have interacted with a project in some way | + | |
| - | SET @owner = "rails"; | + | |
| - | SET @repo = "rails"; | + | |
| - | USE msr14; # Test database | + | |
| - | # USE ghtorrent; # Production database | + | |
| - | SET @proj = (SELECT projects.id FROM projects INNER JOIN users ON projects.owner_id = users.id WHERE projects.name = @repo AND users.login = @owner); | + | |
| - | SELECT * FROM | + | |
| - | ( | + | |
| - | SELECT users.id as "user_id", | + | |
| - | users.login as "login", | + | |
| - | com.count as "commits", | + | |
| - | pulls.count as "pull_requests", | + | |
| - | iss.count as "issues", | + | |
| - | comcoms.count as "commit_comments", | + | |
| - | pullscoms.count as "pull_request_comments", | + | |
| - | isscoms.count as "issue_comments" | + | |
| - | FROM users | + | |
| - | LEFT JOIN (SELECT committer_id AS id, COUNT(*) AS count FROM commits INNER JOIN project_commits ON project_commits.commit_id = commits.id WHERE project_commits.project_id = @proj GROUP BY commits.committer_id) AS com | + | |
| - | ON com.id = users.id | + | |
| - | LEFT JOIN (SELECT pull_request_history.actor_id AS id, COUNT(*) AS count FROM pull_request_history JOIN pull_requests ON pull_requests.id = pull_request_history.pull_request_id WHERE pull_requests.base_repo_id = @proj AND pull_request_history.action = 'merged' GROUP BY pull_request_history.actor_id) AS pulls | + | |
| - | ON pulls.id = users.id | + | |
| - | LEFT JOIN (SELECT reporter_id AS id, COUNT(*) AS count FROM issues WHERE issues.repo_id = @proj GROUP BY issues.reporter_id) AS iss | + | |
| - | ON iss.id = users.id | + | |
| - | LEFT JOIN (SELECT commit_comments.user_id AS id, COUNT(*) AS count FROM commit_comments JOIN project_commits ON project_commits.commit_id = commit_comments.commit_id WHERE project_commits.project_id = @proj GROUP BY commit_comments.user_id) AS comcoms | + | |
| - | ON comcoms.id = users.id | + | |
| - | LEFT JOIN (SELECT pull_request_comments.user_id AS id, COUNT(*) AS count FROM pull_request_comments JOIN pull_requests ON pull_request_comments.pull_request_id = pull_requests.id WHERE pull_requests.base_repo_id = @proj GROUP BY pull_request_comments.user_id) AS pullscoms | + | |
| - | ON pullscoms.id = users.id | + | |
| - | LEFT JOIN (SELECT issue_comments.user_id AS id, COUNT(*) AS count FROM issue_comments JOIN issues ON issue_comments.issue_id = issues.id WHERE issues.repo_id = @proj GROUP BY issue_comments.user_id) AS isscoms | + | |
| - | ON isscoms.id = users.id | + | |
| - | GROUP BY users.id | + | |
| - | ORDER BY com.count DESC | + | |
| - | ) user_activity | + | |
| - | WHERE commits IS NOT NULL | + | |
| - | OR pull_requests IS NOT NULL | + | |
| - | OR issues IS NOT NULL | + | |
| - | OR commit_comments IS NOT NULL | + | |
| - | OR pull_request_comments IS NOT NULL | + | |
| - | OR issue_comments IS NOT NULL; | + | |
| - | + | ||
| - | ===GHTorrent: Number of Contributors (committers) per Project: === | + | |
| - | + | ||
| - | GitHub defines contributors as those who have made "Contributions to master, excluding merge commits" | + | |
| - | + | ||
| - | I do not see in the GHTorrent database schema a way to determine commits to master vs other branches, | + | |
| - | Nor a way to differentiate merge commits from other commits. | + | |
| - | + | ||
| - | Because of this, for the following SQL query I will define contributors as "users who have made a commit" | + | |
| - | + | ||
| - | When viewing the table, one may notice that there is a separate author_id and committer_id for each commit | + | |
| - | the commit author has written the code of the commit. | + | |
| - | the commit committer has made the commit | + | |
| - | example: author writes some code and does a pull request. committer approves/merges the pull request | + | |
| - | + | ||
| - | For the following SQL, I am considering the author to be the contributor. | + | |
| - | + | ||
| - | select projects.name as project_name, projects.url as url, count(distinct commits.author_id) as num_contributers | + | |
| - | from commits | + | |
| - | join project_commits on commits.id = project_commits.commit_id | + | |
| - | join projects on projects.id = project_commits.project_id | + | |
| - | group by project_commits.project_id | + | |
| - | + | ||
| - | ===== 5. Known Implementations ===== | + | |
| - | [[https://github.com/OSSHealth/ghdata|GHData]] | + | |
| - | + | ||
| - | ===== 6. External References (Literature) ===== | + | |
oss-health-metrics/metrics/contributors.txt · Last modified: 2017/10/06 20:54 by GeorgLink
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