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-## Script from https://github.com/tir38/android-lint-entropy-reducer at 07.05.2017
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-# adapts to drone, use git username / token as parameter
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-
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-Encoding.default_external = Encoding::UTF_8
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-Encoding.default_internal = Encoding::UTF_8
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-
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-puts "=================== starting Android FindBugs Entropy Reducer ===================="
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-
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-# get args
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-git_user, git_token, git_branch = ARGV
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-
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-# ======================== SETUP ============================
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-
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-# User name for git commits made by this script.
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-TRAVIS_GIT_USERNAME = String.new("Drone CI server")
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-
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-# File name and relative path of generated FindBugs report. Must match build.gradle file:
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-# lintOptions {
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-# htmlOutput file("[FILE_NAME].html")
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-# }
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-FINDBUGS_REPORT_FILE = String.new("app/build/reports/spotbugs/spotbugs.html")
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-
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-# File name and relative path of previous results of this script.
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-PREVIOUS_FINDBUGS_RESULTS_FILE=String.new("scripts/analysis/findbugs-results.txt")
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-
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-# Flag to evaluate warnings. true = check warnings; false = ignore warnings
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-CHECK_WARNINGS = true
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-
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-# File name and relative path to custom FindBugs rules; Can be null or "".
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-CUSTOM_FINDBUGS_FILE = String.new("")
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-
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-# ================ SETUP DONE; DON'T TOUCH ANYTHING BELOW ================
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-
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-require 'fileutils'
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-require 'pathname'
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-require 'open3'
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-
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-# since we need the xml-simple gem, and we want this script self-contained, let's grab it just when we need it
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-begin
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- gem "xml-simple"
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- rescue LoadError
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- system("gem install --user-install xml-simple")
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- Gem.clear_paths
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-end
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-
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-require 'xmlsimple'
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-
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-# run FindBugs
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-puts "running FindBugs..."
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-system './gradlew spotbugsGplayDebug 1>/dev/null 2>&1'
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-
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-# find FindBugs report file
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-findbugs_reports = Dir.glob(FINDBUGS_REPORT_FILE)
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-if findbugs_reports.length == 0
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- puts "Findbugs HTML report not found."
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- exit 1
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-end
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-findbugs_report = String.new(findbugs_reports[0])
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-
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-# find number of warnings
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-current_warning_count = `grep -A 3 "<b>Total</b>" app/build/reports/spotbugs/spotbugs.html | tail -n1 | cut -f2 -d">" | cut -f1 -d"<"`.to_i
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-puts "found warnings: " + current_warning_count.to_s
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-
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-# get warning counts from last successful build
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-
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-previous_results = false
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-
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-previous_findbugs_reports = Dir.glob(PREVIOUS_FINDBUGS_RESULTS_FILE)
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-if previous_findbugs_reports.nil? || previous_findbugs_reports.length == 0
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- previous_findbugs_report = File.new(PREVIOUS_FINDBUGS_RESULTS_FILE, "w") # create for writing to later
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-else
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- previous_findbugs_report = String.new(previous_findbugs_reports[0])
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-
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- previous_warning_count = File.open(previous_findbugs_report, &:readline).match(/[0-9]*/)[0].to_i
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-
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- if previous_warning_count.nil?
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- previous_results = false
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- else
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- previous_results = true
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-
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- puts "previous warnings: " + previous_warning_count.to_s
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- end
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-end
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-
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-# compare previous warning count with current warning count
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-if previous_results == true && current_warning_count > previous_warning_count
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- puts "FAIL: warning count increased"
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- exit 1
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-end
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-
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-# check if warning and error count stayed the same
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-if previous_results == true && current_warning_count == previous_warning_count
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- puts "SUCCESS: count stayed the same"
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- exit 2
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-end
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-
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-# warning count DECREASED
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-puts "SUCCESS: count decreased from " + previous_warning_count.to_s + " to " + current_warning_count.to_s
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-
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-# write new results to file (will overwrite existing, or create new)
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-File.write(previous_findbugs_report, current_warning_count)
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-
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-# push changes to github (if this script is run locally, we don't want to overwrite git username and email, so save temporarily)
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-previous_git_username, _ = Open3.capture2('git config user.name')
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-previous_git_username = previous_git_username.strip
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-
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-previous_git_email, _ = Open3.capture3('git config user.email')
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-previous_git_email = previous_git_email.strip
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-
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-# update git user name and email for this script
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-system ("git config --local user.name '" + git_user + "'")
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-system ("git config --local user.email 'android@nextcloud.com'")
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-
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-# add previous FindBugs result file to git
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-system ('git add ' + PREVIOUS_FINDBUGS_RESULTS_FILE)
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-
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-# commit changes
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-system({"GIT_COMMITTER_NAME" => git_user, "GIT_COMMITTER_EMAIL" => "android@nextcloud.com", "GIT_AUTHOR_EMAIL" => "android@nextcloud.com"}, 'git commit -sm "Analysis: update Spotbugs results to reflect reduced error/warning count"')
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-
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-# push to origin
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-system ('git push origin HEAD:' + git_branch)
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-
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-# restore previous git user name and email
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-system("git config --local user.name '#{previous_git_username}'")
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-system("git config --local user.email '#{previous_git_email}'")
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-
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-puts "SUCCESS: count was reduced"
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-exit 0 # success
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Álvaro Brey