From c1b6930b5e9ec3e3871ed04150f100b1ff12aa8f Mon Sep 17 00:00:00 2001
From: Richard Hartmann <richih.mailinglist@gmail.com>
Date: Sun, 12 May 2013 21:50:03 +0200
Subject: [PATCH 1/1] Support $VCSH_GITIGNORE == none

This will neither add core.excludesfile nor write a ignore file.
---
 doc/vcsh.1.ronn |  6 ++++--
 vcsh            | 14 ++++++++++----
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/doc/vcsh.1.ronn b/doc/vcsh.1.ronn
index 4ec9548..7ebf9f5 100644
--- a/doc/vcsh.1.ronn
+++ b/doc/vcsh.1.ronn
@@ -151,14 +151,16 @@ executed in the context of your shell.
 Interesting knobs you can turn:
 
 * <$VCSH_GITIGNORE>:
-  Can be either <exact> or <recursive>.
+  Can be <exact>, <recursive>, or <none>.
 
-  <exact> will seed the repo-specific <.gitignore> with all file and directory
+  <exact> will seed the repo-specific ignore file with all file and directory
   names which `git ls-files` returns.
 
   <recursive> will descend through all directories recursively additionally to
   the above.
 
+  <none> will not write any ignore file.
+
   Defaults to <exact>.
 
 Less interesting knobs you could turn:
diff --git a/vcsh b/vcsh
index 7a0f712..f1f50de 100755
--- a/vcsh
+++ b/vcsh
@@ -238,7 +238,7 @@ upgrade() {
 	hook pre-upgrade
 	use
 	git config core.worktree     "$GIT_WORK_TREE"
-	git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
+	[ ! "x$VCSH_GITIGNORE" = 'xnone' ] && git config core.excludesfile ".gitignore.d/$VCSH_REPO_NAME"
 	git config vcsh.vcsh         'true'
 	[ -e "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME" ] && git add -f "$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME"
 	hook post-upgrade
@@ -259,6 +259,12 @@ which() {
 }
 
 write_gitignore() {
+	# Don't do anything if the user does not want to write gitignore
+	if [ "x$VCSH_GITIGNORE" = 'xnone' ] then
+		info "Not writing gitignore as '\$VCSH_GITIGNORE' is set to 'none'"
+		exit
+	fi
+
 	use
 	cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
 	gitignores=$(for file in $(git ls-files); do
@@ -272,7 +278,7 @@ write_gitignore() {
 	echo '*' > "$tempfile" || fatal "could not write to '$tempfile'" 57
 	for gitignore in $gitignores; do
 		echo "$gitignore" | sed 's@^@!/@' >> "$tempfile" || fatal "could not write to '$tempfile'" 57
-		if [ x$VCSH_GITIGNORE = x'recursive' ] && [ -d "$gitignore" ]; then
+		if [ "x$VCSH_GITIGNORE" = 'xrecursive' ] && [ -d "$gitignore" ]; then
 			{ echo "$gitignore/*" | sed 's@^@!/@' >> "$tempfile" || fatal "could not write to '$tempfile'" 57; }
 		fi
 	done
@@ -289,8 +295,8 @@ write_gitignore() {
 		fatal "could not move '$tempfile' to '$VCSH_BASE/.gitignore.d/$VCSH_REPO_NAME'" 53
 }
 
-if [ ! "x$VCSH_GITIGNORE" = 'xexact' ] && [ ! "x$VCSH_GITIGNORE" = 'xrecursive' ]; then
-	fatal "'\$VCSH_GITIGNORE' must be either 'exact' or 'recursive'" 1
+if [ ! "x$VCSH_GITIGNORE" = 'xexact' ] && [ ! "x$VCSH_GITIGNORE" = 'xrecursive' ] && [ ! "x$VCSH_GITIGNORE" = 'xnone' ]; then
+	fatal "'\$VCSH_GITIGNORE' must equal 'exact', 'recursive', or 'none'" 1
 fi
 
 if [ "$1" = 'clone' ]; then
-- 
2.39.5