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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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"regexp" |
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"strconv" |
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"github.com/fedir/ghstat/httpcache" |
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) |
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const ( |
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regexpPageIndexes = `.*page=(\d+).*page=(\d+).*` |
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regexpLastPageURL = `.* rel="next", <(.*)>;.*` |
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) |
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// Contributor structure with selcted data keys for JSON processing |
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type Contributor struct { |
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Login string `json:"login"` |
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} |
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// GetRepositoryContributors gets information about contributors of the repository |
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func GetRepositoryContributors(repoKey string, tmpFolder string, debug bool) (int, int) { |
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var totalContributors int |
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var topContributorsFollowers = 0 |
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url := "https://api.github.com/repos/" + repoKey + "/contributors" |
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fullResp := httpcache.MakeCachedHTTPRequest(url, tmpFolder, debug) |
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jsonResponse, linkHeader, _ := httpcache.ReadResp(fullResp) |
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var compRegEx = regexp.MustCompile(regexpPageIndexes) |
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match := compRegEx.FindStringSubmatch(linkHeader) |
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nextPage := 0 |
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lastPage := 0 |
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for range compRegEx.SubexpNames() { |
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if len(match) == 3 { |
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nextPage, _ = strconv.Atoi(match[1]) |
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lastPage, _ = strconv.Atoi(match[2]) |
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} |
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} |
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contributors := make([]Contributor, 0) |
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json.Unmarshal(jsonResponse, &contributors) |
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i := 0 |
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for _, contributor := range contributors { |
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topContributorsFollowers = topContributorsFollowers + getContributorFollowers(contributor.Login, tmpFolder, debug) |
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i++ |
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if i == 10 { |
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goto TOTAL_CONTRIBUTORS |
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} |
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} |
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TOTAL_CONTRIBUTORS: |
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if nextPage != 0 { |
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contributorsOnLastPage := getRepositoryContributorsNumberLastPage(linkHeader, tmpFolder, debug) |
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totalContributors = (lastPage-1)*30 + contributorsOnLastPage |
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} else { |
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totalContributors = len(contributors) |
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} |
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return topContributorsFollowers, totalContributors |
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} |
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func getContributorFollowers(login string, tmpFolder string, debug bool) int { |
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totalUsers := 0 |
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url := "https://api.github.com/users/" + login + "/followers" |
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fullResp := httpcache.MakeCachedHTTPRequest(url, tmpFolder, debug) |
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jsonResponse, linkHeader, _ := httpcache.ReadResp(fullResp) |
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var compRegEx = regexp.MustCompile(regexpPageIndexes) |
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match := compRegEx.FindStringSubmatch(linkHeader) |
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nextPage := 0 |
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lastPage := 0 |
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for range compRegEx.SubexpNames() { |
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if len(match) == 3 { |
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nextPage, _ = strconv.Atoi(match[1]) |
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lastPage, _ = strconv.Atoi(match[2]) |
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} |
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} |
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contributors := make([]Contributor, 0) |
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json.Unmarshal(jsonResponse, &contributors) |
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if nextPage != 0 { |
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contributorsOnLastPage := getRepositoryContributorsNumberLastPage(linkHeader, tmpFolder, debug) |
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totalUsers = (lastPage-1)*30 + contributorsOnLastPage |
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} else { |
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totalUsers = len(contributors) |
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} |
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return totalUsers |
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} |
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func getRepositoryContributorsNumberLastPage(linkHeader string, tmpFolder string, debug bool) int { |
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jsonResponse := getJSONResponse(linkHeader, tmpFolder, debug) |
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contributors := make([]Contributor, 0) |
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json.Unmarshal(jsonResponse, &contributors) |
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contributorsOnLastPage := len(contributors) |
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return contributorsOnLastPage |
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} |
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// GetActiveForkersPercentage calculates the percentage of active forkers of the repository |
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func GetActiveForkersPercentage(contributors int, forkers int) float64 { |
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contributorsFloat := float64(contributors) |
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forkersFloat := float64(forkers) |
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activeForkersPercentage := (contributorsFloat / forkersFloat) * 100 |
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return activeForkersPercentage |
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} |
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fedir /
ghstat
