Adds update command for externally modified files

This can be used when a file is modified externally. It will update the
sqlite database and potentially run git commands for the change.

If there are 2 files provided, it assumes that the file was moved. The
first filename should be the old file.

The new, edit and delete functions were also re factored slightly to use
this new update function.

Relevant to #4
Close #2
Close #1

inc/file-management

@@ -20,9 +20,6 @@ Tags:
 	-
 ---
 " > "$filename"
-	echo "INSERT INTO items (filename, title, type)
-	VALUES ( '$(safeSQL "$filename")', '$(safeSQL "$title")', 'normal' );" |
-		sqlite3 "${sqliteFile}"
 	editFile "$filename"
 }
 
@@ -31,32 +28,62 @@ editFile(){
 	vecho "editFile $*"
 	cd "$dataDir" || return
 	local filename
-	local oldTitle
-	local newTitle
 	filename="$(findFile "$*")"
 	[ ! -e "$filename" ] && exit 1
-	oldTitle="$(getYamlTitle "$filename")"
 	"$editor" "$filename"
-	newTitle="$(getYamlTitle "$filename")"
-	getYamlTags "$filename" | assignTags "$filename"
-	if [ "$newTitle" != "$oldTitle" ]; then
-		vecho "Changed title"
-		local newfilename
-		newfilename="$(escapeFilename "$newTitle.md")"
-		if [ -e "$newfilename" ]; then
-			echo -e "${YELLOW}File name $newfilename already exists${NC}"
-			echo -e "Please fix manually"
-			exit 1
-		else
-			mv "$filename" "$newfilename"
-			echo "UPDATE items
-				SET (filename,title) = ('$(safeSQL "$newfilename")','$(safeSQL "$newTitle")')
-				WHERE filename = '$(safeSQL "$filename")';" |
-				sqlite3 "${sqliteFile}"
-			gitChange "$newfilename"
+	updateFileChange "$filename"
+}
+
+# This is used to update the DB when a file is changed
+# param1 is the file
+updateFileChange(){
+	local filename
+	local title
+	local newFilename
+	filename="$(findFile "$1")"
+	[ ! -e "$filename" ] && die "No such file $1"
+	title="$(getYamlTitle "$filename")"
+	newFilename="$(escapeFilename "$title.md")"
+	echo "Filename: '$filename'
+new filename: '$newFilename'"
+	if [ "$filename" = "$newFilename" ]; then
+		# The title hasn't changed
+		# check if the file is in the DB
+		if ! fileInDB "$filename"; then
+			# If not, add it
+			echo "INSERT INTO items (filename, title, type)
+			VALUES ( '$(safeSQL "$filename")',
+				'$(safeSQL "$title")', 'normal' );" |
+			sqlite3 "${sqliteFile}"
 		fi
-	else
+		# Make sure all the tags are up to date
+		getYamlTags "$filename" | assignTags "$filename"
 		gitChange "$filename"
+	else
+		# The title has changed so we need to move the file
+		if [ -e "$newFilename" ]; then
+			# If the place we need to move it to already exists, die
+			die -e "$newFilename already exists
+$filename title changed
+Please resolve manually"
+		else
+			mv "$filename" "$newFilename"
+			if fileInDB "$filename"; then
+				echo "UPDATE items
+					SET (filename,title) =
+					('$(safeSQL "$newFilename")','$(safeSQL "$title")')
+					WHERE filename = '$(safeSQL "$filename")';" |
+					sqlite3 "${sqliteFile}"
+			else
+				# We get here if the title was changed in the create process
+				echo "INSERT INTO items (filename, title, type)
+					VALUES ( '$(safeSQL "$newFilename")',
+					'$(safeSQL "$title")', 'normal' );" |
+				sqlite3 "${sqliteFile}"
+
+			fi
+			gitChange "$filename" "$newFilename"
+		fi
 	fi
 }
 
@@ -78,6 +105,7 @@ deleteFile(){
 			DELETE FROM links
 			WHERE itemID = '$(safeSQL "$fileID")';" |
 			sqlite3 --column --header "${sqliteFile}"
+		gitChange "$filename"
 	fi
 }