From 712e43ef7c92e8903e6f9d7ca261a420c566d299 Mon Sep 17 00:00:00 2001
From: Rob Landley <rob@landley.net>
Date: Sun, 7 Feb 2016 18:15:53 -0600
Subject: Add "make ls" and friends targets, with "make working" and "make
 pending" lists.

---
 Makefile             |  9 +++++++--
 scripts/genconfig.sh | 26 ++++++++++++++++++++++++++
 scripts/make.sh      |  2 +-
 3 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index 004293c0..92176a2b 100644
--- a/Makefile
+++ b/Makefile
@@ -19,9 +19,11 @@ toybox toybox_unstripped: toybox_stuff
 	scripts/make.sh
 
 .PHONY: clean distclean baseline bloatcheck install install_flat \
-	uinstall uninstall_flat test tests help toybox_stuff change
+	uinstall uninstall_flat test tests help toybox_stuff change \
+	working pending
 
 include kconfig/Makefile
+-include .singlemake
 
 $(KCONFIG_CONFIG): $(KCONFIG_TOP)
 $(KCONFIG_TOP): generated/Config.in
@@ -54,7 +56,7 @@ clean::
 	rm -rf toybox toybox_unstripped generated change .singleconfig*
 
 distclean: clean
-	rm -f toybox_old .config*
+	rm -f toybox_old .config* .singlemake
 
 test: tests
 
@@ -63,6 +65,9 @@ tests:
 
 help::
 	@echo  '  toybox          - Build toybox.'
+	@echo  '  COMMANDNAME     - Build individual toybox command as a standalone binary.'
+	@echo  '  working         - List working COMMANDNAMEs.'
+	@echo  '  pending         - List pending (unfinished) COMMANDNAMEs.'
 	@echo  '  change          - Build each command standalone under change/.'
 	@echo  '  baseline        - Create toybox_old for use by bloatcheck.'
 	@echo  '  bloatcheck      - Report size differences between old and current versions'
diff --git a/scripts/genconfig.sh b/scripts/genconfig.sh
index ce8c0266..7b34f085 100755
--- a/scripts/genconfig.sh
+++ b/scripts/genconfig.sh
@@ -119,3 +119,29 @@ genconfig()
 
 probeconfig > generated/Config.probed || rm generated/Config.probed
 genconfig > generated/Config.in || rm generated/Config.in
+
+# Find names of commands that can be built standalone in these C files
+toys()
+{
+  grep 'TOY(.*)' "$@" | grep -v TOYFLAG_NOFORK | \
+    sed -rn 's/([^:]*):.*(OLD|NEW)TOY\( *([a-zA-Z][^,]*) *,.*/\1:\3/p'
+}
+
+WORKING=
+PENDING=
+toys toys/*/*.c | (
+while IFS=":" read FILE NAME
+do
+  [ "$NAME" == help ] && continue
+  [ "$NAME" == install ] && continue
+  echo -e "$NAME:\n\tscripts/single.sh $NAME\n"
+  [ "${FILE/pending//}" != "$FILE" ] &&
+    PENDING="$PENDING $NAME" ||
+    WORKING="$WORKING $NAME"
+done > .singlemake &&
+echo -e "clean::\n\trm -f $WORKING $PENDING" >> .singlemake &&
+echo -e "working:\n\t@echo $(echo $WORKING | tr ' ' '\n' | sort | xargs)" \
+  >> .singlemake &&
+echo -e "pending:\n\t@echo $(echo $PENDING | tr ' ' '\n' | sort | xargs)" \
+  >> .singlemake
+)
diff --git a/scripts/make.sh b/scripts/make.sh
index 9fbf086a..84dda343 100755
--- a/scripts/make.sh
+++ b/scripts/make.sh
@@ -66,7 +66,7 @@ CFLAGS="$CFLAGS $(cat generated/cflags)"
 BUILD="$(echo ${CROSS_COMPILE}${CC} $CFLAGS -I . $OPTIMIZE $GITHASH)"
 FILES="$(echo lib/*.c main.c $TOYFILES)"
 
-if [ "${FILES/pending//}" != "$FILES" ]
+if [ "${TOYFILES/pending//}" != "$TOYFILES" ]
 then
   echo -e "\n\033[1;31mwarning: using unfinished code from toys/pending\033[0m"
 fi
-- 
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