Merge pull request #13251 from scuttlemonkey/master

script: adding contributor credits script

Reviewed-by: Sage Weil <sage@redhat.com>

src/script/credits.sh

@@ -0,0 +1,45 @@
+#!/bin/sh -x
+
+range="$1"
+TMP=/tmp/credits
+declare -A mail2author
+declare -A mail2organization
+remap="s/'/ /g"
+git log --pretty='%ae %aN <%aE>' $range | sed -e "$remap" | sort -u > $TMP
+while read mail who ; do
+    author=$(echo $who | git -c mailmap.file=.peoplemap check-mailmap --stdin)
+    mail2author[$mail]="$author"
+    organization=$(echo $who | git -c mailmap.file=.organizationmap check-mailmap --stdin)
+    mail2organization[$mail]="$organization"
+done < $TMP
+declare -A author2lines
+declare -A organization2lines
+git log --no-merges --pretty='%ae' $range | sed -e "$remap" | sort -u > $TMP
+while read mail ; do 
+    count=$(git log --numstat --author="$mail" --pretty='%h' $range | 
+        perl -e 'while(<STDIN>) { if(/(\d+)\t(\d+)/) { $added += $1; $deleted += $2 } }; print $added + $deleted;')
+    (( author2lines["${mail2author[$mail]}"] += $count ))
+    (( organization2lines["${mail2organization[$mail]}"] += $count ))
+done < $TMP
+echo
+echo "Number of lines added and removed, by authors"
+for author in "${!author2lines[@]}" ; do
+    printf "%6s %s\n" ${author2lines["$author"]} "$author"
+done | sort -rn | nl
+echo
+echo "Number of lines added and removed, by organization"
+for organization in "${!organization2lines[@]}" ; do
+    printf "%6s %s\n" ${organization2lines["$organization"]} "$organization"
+done | sort -rn | nl
+echo
+echo "Commits, by authors"
+git log --no-merges --pretty='%aN <%aE>' $range | git -c mailmap.file=.peoplemap check-mailmap --stdin | sort | uniq -c | sort -rn | nl
+echo
+echo "Commits, by organizations"
+git log --no-merges --pretty='%aN <%aE>' $range | git -c mailmap.file=.organizationmap check-mailmap --stdin | sort | uniq -c | sort -rn | nl
+echo
+echo "Reviews, by authors (one review spans multiple commits)"
+git log --pretty=%b $range | perl -n -e 'print "$_\n" if(s/^\s*Reviewed-by:\s*(.*<.*>)\s*$/\1/i)' | git check-mailmap --stdin | git -c mailmap.file=.peoplemap check-mailmap --stdin | sort | uniq -c | sort -rn | nl
+echo
+echo "Reviews, by organizations (one review spans multiple commits)"
+git log --pretty=%b $range | perl -n -e 'print "$_\n" if(s/^\s*Reviewed-by:\s*(.*<.*>)\s*$/\1/i)' | git check-mailmap --stdin | git -c mailmap.file=.organizationmap check-mailmap --stdin | sort | uniq -c | sort -rn | nl