From 53fb0cf22ba887d9bf4c7bf3d58f07bef90aa48b Mon Sep 17 00:00:00 2001
From: Neels Hofmeyr <neels@hofmeyr.de>
Date: Thu, 15 Mar 2018 22:14:38 +0100
Subject: gen_links.sh: auto-generate .gitignore files to ignore symlinks

In each subdir that is a target for symlinks, automatically ignore the results
of gen_links():

- At the top of gen_links.sh.inc, clear the .gitignore.
- In the loop, add each link name to the local .gitignore.
- In selected gen_links.sh, there is also a "manual" link creationg. So that
  this also ends up in the local .gitignore, have the link creation as separate
  gen_link() macro which at the same time adds to ./.gitignore.
- in the root .gitignore, ignore all the subdirs' generated */.gitignore files.

Change-Id: I73c11fe8362358bf7e1bdf0e1be53399b5d3351b
---
 .gitignore            |  1 +
 bsc-nat/gen_links.sh  |  2 +-
 bsc/gen_links.sh      |  2 +-
 gen_links.sh.inc      | 13 +++++++++++--
 msc/gen_links.sh      |  2 +-
 selftest/gen_links.sh |  2 +-
 6 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/.gitignore b/.gitignore
index d8c3ab3a..cc06c3cc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@ deps/*/
 *.log
 *.so
 compile
+*/.gitignore
diff --git a/bsc-nat/gen_links.sh b/bsc-nat/gen_links.sh
index 8aa47a92..946fbafe 100755
--- a/bsc-nat/gen_links.sh
+++ b/bsc-nat/gen_links.sh
@@ -28,7 +28,7 @@ gen_links $DIR $FILES
 DIR=../SCCP_CNL113341/src
 FILES="SCCP_Emulation.ttcn  SCCP_EncDec.cc  SCCP_Mapping.ttcnpp  SCCP_Types.ttcn  SCCPasp_Types.ttcn"
 gen_links $DIR $FILES
-ln -sf SCCP_Mapping.ttcnpp SCCP_Mapping.ttcn
+gen_link SCCP_Mapping.ttcnpp SCCP_Mapping.ttcn
 
 DIR=$BASEDIR/titan.ProtocolModules.BSSMAP_v11.2.0/src
 FILES="BSSAP_Types.ttcn"
diff --git a/bsc/gen_links.sh b/bsc/gen_links.sh
index 9145ff76..50d73298 100755
--- a/bsc/gen_links.sh
+++ b/bsc/gen_links.sh
@@ -49,7 +49,7 @@ gen_links $DIR $FILES
 DIR=../SCCP_CNL113341/src
 FILES="SCCP_Emulation.ttcn  SCCP_Mapping.ttcnpp  SCCP_Types.ttcn  SCCPasp_Types.ttcn"
 gen_links $DIR $FILES
-ln -sf SCCP_Mapping.ttcnpp SCCP_Mapping.ttcn
+gen_link SCCP_Mapping.ttcnpp SCCP_Mapping.ttcn
 
 DIR=$BASEDIR/titan.ProtocolModules.BSSMAP_v11.2.0/src
 FILES="BSSAP_Types.ttcn"
diff --git a/gen_links.sh.inc b/gen_links.sh.inc
index 2fcb9d1c..aba8ca16 100644
--- a/gen_links.sh.inc
+++ b/gen_links.sh.inc
@@ -1,12 +1,21 @@
 #!dont_run_this
 # This file is sourced by */gen_links.sh
 
+rm -f .gitignore
+
+gen_link() {
+	src="$1"
+	f="$2"
+	echo "Linking $f"
+	ln -sf "$src" "$f"
+	echo "$f" >> .gitignore
+}
+
 gen_links() {
 	DIR=$1
 	shift
 	FILES=$*
 	for f in $FILES; do
-		echo "Linking $f"
-		ln -sf $DIR/$f $f
+		gen_link "$DIR/$f" "$f"
 	done
 }
diff --git a/msc/gen_links.sh b/msc/gen_links.sh
index b9cbd0ac..fe091550 100755
--- a/msc/gen_links.sh
+++ b/msc/gen_links.sh
@@ -44,7 +44,7 @@ gen_links $DIR $FILES
 DIR=../SCCP_CNL113341/src
 FILES="SCCP_Emulation.ttcn  SCCP_EncDec.cc  SCCP_Mapping.ttcnpp  SCCP_Types.ttcn  SCCPasp_Types.ttcn"
 gen_links $DIR $FILES
-ln -s SCCP_Mapping.ttcnpp SCCP_Mapping.ttcn
+gen_link SCCP_Mapping.ttcnpp SCCP_Mapping.ttcn
 
 DIR=$BASEDIR/titan.ProtocolModules.BSSMAP_v11.2.0/src
 FILES="BSSAP_Types.ttcn"
diff --git a/selftest/gen_links.sh b/selftest/gen_links.sh
index 542e3c2d..2a98aafb 100755
--- a/selftest/gen_links.sh
+++ b/selftest/gen_links.sh
@@ -29,7 +29,7 @@ gen_links $DIR $FILES
 DIR=../SCCP_CNL113341/src
 FILES="SCCP_Emulation.ttcn  SCCP_Mapping.ttcnpp  SCCP_Types.ttcn  SCCPasp_Types.ttcn"
 gen_links $DIR $FILES
-ln -sf SCCP_Mapping.ttcnpp SCCP_Mapping.ttcn
+gen_link SCCP_Mapping.ttcnpp SCCP_Mapping.ttcn
 
 DIR=$BASEDIR/titan.ProtocolModules.BSSMAP_v11.2.0/src
 FILES="BSSAP_Types.ttcn"
-- 
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