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// Copyright 2018 Fedir RYKHTIK. All rights reserved. |
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// Use of this source code is governed by the GNU GPL 3.0 |
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// license that can be found in the LICENSE file. |
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package github |
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import ( |
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"encoding/json" |
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"fmt" |
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"github.com/fedir/ghstat/httpcache" |
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) |
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// StatsContributor contains statistical data for contribution |
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type StatsContributor struct { |
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Author struct { |
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Login string `json:"login"` |
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} `json:"author"` |
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TotalCommits int `json:"total"` |
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Weeks []struct { |
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Week int `json:"w"` |
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Additions int `json:"a"` |
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Deletions int `json:"d"` |
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Commits int `json:"c"` |
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} `json:"weeks"` |
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} |
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// ContributionStatistics contains multiple statistics about contribution into the repository |
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type ContributionStatistics struct { |
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TotalCommits int |
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TotalAdditions int |
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TotalDeletions int |
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TotalCodeChanges int |
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MediumCommitSize int |
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AverageContributionPeriod int |
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ReturningContributors int |
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} |
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// GetContributionStatistics gets detailsed statistics about contributors of the repository |
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func GetContributionStatistics(repoKey string, tmpFolder string, debug bool) ContributionStatistics { |
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url := "https://api.github.com/repos/" + repoKey + "/stats/contributors" |
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fullResp := httpcache.MakeCachedHTTPRequest(url, tmpFolder, debug) |
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jsonResponse, _, _ := httpcache.ReadResp(fullResp) |
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cs := extractContributionStatisticsFromJSON(jsonResponse, debug) |
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if debug { |
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fmt.Printf("ACP for %s: %d days\n", repoKey, cs.AverageContributionPeriod) |
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fmt.Printf("RC for %s: %d\n", repoKey, cs.ReturningContributors) |
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} |
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return cs |
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} |
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// GetCommitsByDay calculates the rate of commits by day of the repository |
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func GetCommitsByDay(totalCommits int, repositoryAge int) float64 { |
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var commitsByDay float64 |
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totalCommitsFloat := float64(totalCommits) |
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repositoryAgeFloat := float64(repositoryAge) |
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if totalCommitsFloat != 0 && repositoryAgeFloat != 0 { |
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commitsByDay = totalCommitsFloat / repositoryAgeFloat |
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} else { |
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commitsByDay = 0 |
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} |
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return commitsByDay |
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} |
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func extractContributionStatisticsFromJSON(jsonResponse []byte, debug bool) ContributionStatistics { |
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var cs ContributionStatistics |
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cs.TotalCommits = 0 |
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cs.TotalAdditions = 0 |
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cs.TotalDeletions = 0 |
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cs.TotalCodeChanges = 0 |
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contributionStatistics := make([]StatsContributor, 0) |
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json.Unmarshal(jsonResponse, &contributionStatistics) |
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for _, c := range contributionStatistics { |
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cs.TotalCommits += c.TotalCommits |
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for _, cw := range c.Weeks { |
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cs.TotalAdditions += cw.Additions |
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cs.TotalDeletions += cw.Deletions |
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cs.TotalCodeChanges += cw.Additions |
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cs.TotalCodeChanges += cw.Deletions |
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} |
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} |
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cs.MediumCommitSize = calculateMediumCommitSize(cs.TotalCommits, cs.TotalCodeChanges) |
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cs.AverageContributionPeriod = calculateAverageContributionPeriod(contributionStatistics, debug) |
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cs.ReturningContributors = calculateReturningContributors(contributionStatistics, debug) |
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return cs |
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} |
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func calculateMediumCommitSize(totalCommits int, totalCodeChanges int) int { |
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return int(float64(totalCodeChanges) / float64(totalCommits)) |
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} |
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func calculateAverageContributionPeriod(cs []StatsContributor, debug bool) int { |
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type contributorContibutionPeriod struct { |
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first int |
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last int |
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period int |
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} |
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acp := 0 |
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totalAcp := 0 |
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nContirbutors := len(cs) |
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for _, c := range cs { |
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ccp := contributorContibutionPeriod{ |
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first: 0, |
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last: 0, |
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period: 0, |
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} |
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for _, cw := range c.Weeks { |
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if cw.Additions > 0 || cw.Commits > 0 || cw.Deletions > 0 { |
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if ccp.first == 0 { |
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ccp.first = cw.Week |
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} else if cw.Week < ccp.first { |
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ccp.first = cw.Week |
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} |
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if cw.Week > ccp.last { |
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ccp.last = cw.Week |
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} |
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} |
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} |
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ccp.period = (ccp.last - ccp.first) / 86400 |
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totalAcp += ccp.period |
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if debug { |
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fmt.Printf("%s, %d, %d, %d\n", c.Author, ccp.first, ccp.last, ccp.period) |
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} |
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} |
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acp = int(float64(totalAcp) / float64(nContirbutors)) |
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return acp |
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} |
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func calculateReturningContributors(cs []StatsContributor, debug bool) int { |
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rc := 0 |
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for _, c := range cs { |
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contributions := 0 |
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for _, cw := range c.Weeks { |
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if cw.Additions > 0 || cw.Commits > 0 || cw.Deletions > 0 { |
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contributions++ |
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} |
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} |
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if contributions > 4 { |
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rc++ |
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if debug { |
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fmt.Printf("%s is returning contributor and has %d weeks of contribution\n", c.Author, contributions) |
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} |
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} else { |
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if debug { |
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fmt.Printf("%s is onetime contributor and has %d week(s) of contribution\n", c.Author, contributions) |
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} |
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} |
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} |
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return rc |
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} |
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fedir /
ghstat
