X-Git-Url: https://git.madduck.net/code/vcsh.git/blobdiff_plain/bb6411ce8f1774ac4200c772b59feb64584baa4f..ab4b010d18cec61ad662c71841f35d0525bf2b99:/vcsh

diff --git a/vcsh b/vcsh
index c12ee74..f4d98ad 100755
--- a/vcsh
+++ b/vcsh
@@ -1,30 +1,30 @@
 #!/bin/sh
 
-[ "$VCSH_DEBUG" = '1' ] && set -x
+[ -n "$VCSH_DEBUG" ] && set -x
 
 SELF=$(basename $0)
 
 [ -z "$XDG_CONFIG_HOME" ] && XDG_CONFIG_HOME="$HOME/.config"
-for check_directory in "$XDG_CONFIG_HOME" "$XDG_CONFIG_HOME/vcsh" "$XDG_CONFIG_HOME/vcsh/repo.d"
+[ -z "$VCSH_BASE" ]       && VCSH_BASE="$XDG_CONFIG_HOME/vcsh/repo.d"
+for check_directory in "$VCSH_BASE" "$HOME/.gitignore.d"
 do
 	if [ ! -d "$check_directory" ]; then
 		if [ -e "$check_directory" ]; then
 			echo "$SELF: error: $check_directory exists but is not a directory" >&2
 			exit 2
 		else
-			mkdir "$check_directory" || (echo "$SELF: error: could not create $check_directory" >&2; exit 2)
+			echo "$SELF: info: attempting to create $check_directory"
+			mkdir -p "$check_directory" || (echo "$SELF: error: could not create $check_directory" >&2; exit 2)
 		fi
 	fi
 done
 
-VCSH_BASE="$XDG_CONFIG_HOME/vcsh/repo.d"
-
 debug() {
-	[ "$VCSH_DEBUG" = '1' ] && echo "$SELF: debug: $1"
+	[ -n "$VCSH_DEBUG" ] && echo "$SELF: debug: $1"
 }
 
 verbose() {
-	if [ "$VCSH_DEBUG" = '1' ] || [ "$VCSH_VERBOSE" = '1' ]; then echo "$SELF: verbose: $1"; fi
+	if [ -n "$VCSH_DEBUG" ] || [ -n "$VCSH_VERBOSE" ]; then echo "$SELF: verbose: $1"; fi
 }
 
 #   use <repo>     Use this repository
@@ -43,6 +43,8 @@ help() {
    init <repo>       Initialize a new repository
    clone <remote> \\
          [<repo>]    Clone from an existing repository
+   seed-gitignore \\
+   <repo>            Seed .gitignore.d/<repo> from git ls-files" >&2
 }
 
 use() {
@@ -73,7 +75,10 @@ init() {
 		 exit 20) || exit 20
 	cd "$GIT_WORK_TREE"
 	git init
-	git config core.worktree "$GIT_WORK_TREE"
+	git config core.worktree     "$GIT_WORK_TREE"
+	git config core.excludesfile ".gitignore.d/$REPO_NAME"
+	touch   "$HOME/.gitignore.d/$REPO_NAME"
+	git add "$HOME/.gitignore.d/$REPO_NAME"
 	verbose "init() end"
 }
 
@@ -136,6 +141,7 @@ elif [ "$1" = 'clone' ]; then
 	git remote add origin "$GIT_REMOTE"
 	git config branch.master.remote origin
 	git config branch.master.merge  refs/heads/master
+	git config core.excludesfile    ".gitignore.d/$REPO_NAME"
 	git fetch
 	for object in $(git ls-tree -r origin/master | awk '{print $4}'); do
 		[ -e "$object" ] &&
@@ -144,6 +150,7 @@ elif [ "$1" = 'clone' ]; then
 	done
 	[ "$VCSH_CONFLICT" = '1' ] &&
 		echo "$SELF: fatal: will stop after fetching and not try to merge!\n" &&
+		echo "  Once this situation has been resolved, run 'vcsh run <foo> git pull' to finish cloning.\n" &&
 		exit 3
 	git merge origin/master
 #	vcsh use $REPO_NAME
@@ -151,7 +158,7 @@ elif [ "$1" = 'clone' ]; then
 
 elif [ "$1" = 'init' ]; then
 	verbose "init begin"
-	[ -z $2 ] && help; return 0
+	[ -z $2 ] && help && echo && echo "$SELF $1: error: please specify repository to work on" && return 0
 	export REPO_NAME="$2"
 	export GIT_DIR="$VCSH_BASE/$REPO_NAME.git"
 	init
@@ -169,6 +176,42 @@ elif [ "$1" = 'init' ]; then
 #	verbose "exit end"
 #	exit 0
 
+elif [ "$1" = 'seed-gitignore' ]; then
+	verbose "seed-gitignore begin"
+	[ -z $2 ] && help && echo && echo "$SELF $1: error: please specify repository to work on" && return 0
+	use "$2"
+	# Switching directory as this has to be executed from $HOME to be of any use.
+	# Going back into old directory at the end in case `vcsh use` is reactivated.
+	old_dir="$PWD"
+	cd "$HOME"
+	git config core.excludesfile ".gitignore.d/$REPO_NAME"
+	files=$(git ls-files)
+	gitignores=$(for file in $(git ls-files); do
+		while true; do
+			echo $file; new="${file%/*}"
+			[ "$file" = "$new" ] && break
+			file="$new"
+		done;
+	done | sort -u | sed 's/^/!/')
+	tempfile=$(mktemp) ||
+		(echo "$SELF: fatal: could not create tempfile" && exit 1) 
+	echo '*' > "$tempfile"
+	for gitignore in $gitignores; do
+		echo "$gitignore" >> "$tempfile"
+	done
+	diff -N "$tempfile" "$HOME/.gitignore.d/$2" > /dev/null &&
+		rm -f "$tempfile" &&
+		return
+	if [ -e "$HOME/.gitignore.d/$2" ]; then
+		echo "$SELF: info: $HOME/.gitignore.d/$2 differs from new data, moving it to $HOME/.gitignore.d/$2.bak"
+		mv -f "$HOME/.gitignore.d/$2" "$HOME/.gitignore.d/$2.bak" ||
+			(echo "$SELF: fatal: could not move $HOME/.gitignore.d/$2 to $HOME/.gitignore.d/$2.bak" && exit 1)
+	fi
+	mv -f "$tempfile" "$HOME/.gitignore.d/$2" ||
+		(echo "$SELF: fatal: could not move $tempfile to $HOME/.gitignore.d/$2" && exit 1)
+	cd "$old_dir"
+	verbose "seed-gitignore end"
+
 else
 	verbose "defaulting to calling help()"
 	help