From 775b724c36e90c90ef520f0294057d4072b1fe66 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyering@fb.com>
Date: Fri, 6 Jun 2014 17:17:55 -0700
Subject: maint: generate distributed THANKS from VC'd THANKS.in

* Makefile.am (THANKS): New rule.
* THANKS.in: New file.
* THANKS: Remove.  Now it's generated from the combination of
THANKS.in and git logs.
* .mailmap: New file.
* cfg.mk (sc_THANKS_in_duplicates): New syntax-check rule, from
coreutils.
* .gitignore: Add THANKS.
* thanks-gen: New file, from coreutils.
---
 Makefile.am | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

(limited to 'Makefile.am')

diff --git a/Makefile.am b/Makefile.am
index e618a005..a7250db0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -23,8 +23,10 @@ EXTRA_DIST =		\
   ChangeLog-2009	\
   README		\
   README-alpha		\
+  THANKS.in		\
   TODO			\
-  cfg.mk
+  cfg.mk		\
+  thanks-gen
 
 # Shortcut target to make it easier to run expensive tests.
 .PHONY: check-expensive
@@ -54,3 +56,25 @@ gen-ChangeLog:
 	    { rm -f $(distdir)/ChangeLog &&				\
 	      mv $(distdir)/cl-t $(distdir)/ChangeLog; }		\
 	fi
+
+# Sort in traditional ASCII order, regardless of the current locale;
+# otherwise we may get into trouble with distinct strings that the
+# current locale considers to be equal.
+ASSORT = LC_ALL=C sort
+
+# Extract all lines up to the first one starting with "##".
+prologue = perl -ne '/^\#\#/ and exit; print' $(srcdir)/THANKS.in
+
+THANKS: THANKS.in Makefile.am .mailmap thanks-gen
+	$(AM_V_GEN)rm -f $@-t $@;					\
+	{								\
+	  $(prologue); echo;						\
+	  { perl -ne '/^$$/.../^$$/ and print' $(srcdir)/THANKS.in	\
+	      | grep -v '^$$' | perl -pe 's/  +/\0/';			\
+	    git log --pretty=format:'%aN%x00%aE'			\
+	      | $(ASSORT) -u;						\
+	  } | $(srcdir)/thanks-gen					\
+	    | LC_ALL=en_US.UTF-8 sort -f;				\
+	  echo;								\
+	  printf ';; %s\n' 'Local Variables:' 'coding: utf-8' End:;	\
+	} > $@-t && chmod a-w $@-t && mv $@-t $@
-- 
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