[PATCH] maint: detect a new type of duplicate in THANKS.in

[Jim Meyering]

FYI,

>From 7b6ce030cc54b34c7fc8a87a0c89137fb5c78a50 Mon Sep 17 00:00:00 2001
From: Jim Meyering <address@hidden>
Date: Wed, 6 Jun 2012 12:46:27 +0200
Subject: [PATCH] maint: detect a new type of duplicate in THANKS.in

* cfg.mk (sc_THANKS_in_duplicates): New rule.
---
 cfg.mk | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/cfg.mk b/cfg.mk
index 7a86c2a..040d7e1 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -413,6 +413,19 @@ sc_preprocessor_indentation:
          echo '$(ME): skipping test $@: cppi not installed' 1>&2;      \
        fi

+# THANKS.in is a list of name/email pairs for people who are mentioned in
+# commit logs (and generated ChangeLog), but who are not also listed as an
+# author of a commit.  Name/email pairs of commit authors are automatically
+# extracted from the repository.  As a very minor factorization, when
+# someone who was initially listed only in THANKS.in later authors a commit,
+# this rule detects that their pair may now be removed from THANKS.in.
+sc_THANKS_in_duplicates:
+       { git log --pretty=format:%aN | sort -u;                        \
+           cut -b-36 THANKS.in | sed '/^$$/d;s/  *$$//'; }             \
+         | sort | uniq -d | grep .                                     \
+           && { echo '$(ME): remove the above names from THANKS.in'    \
+                 1>&2; exit 1; } || :
+
 # Override the default Cc: used in generating an announcement.
 announcement_Cc_ = $(translation_project_), \
   address@hidden, address@hidden
--
1.7.11.rc1