Splits up file into smaller files

Closes issue #9

inc/file-management

@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+
+# This file contains functions relating to file operations such as new, edit and deleting files
+
+newFile(){
+	vecho "newFile $*"
+	cd "$dataDir" || return
+	# While there is a - at the begining
+	local title="$*"
+	if [ -z "$title" ]; then
+		echo -n "Enter a title: "
+		read -r title
+	fi
+	local filename
+	filename="$(escapeFilename "$title.md")"
+	[ -e "$filename" ] && die "$filename already exists"
+	echo -e "---
+Title: $title
+Tags:
+	-
+---
+" > "$filename"
+	echo "INSERT INTO items (filename, title, type)
+	VALUES ( '$(safeSQL "$filename")', '$(safeSQL "$title")', 'normal' );" |
+		sqlite3 "${sqliteFile}"
+	editFile "$filename"
+}
+
+# Takes the filename as a parameter
+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"
+		fi
+	else
+		gitChange "$filename"
+	fi
+}
+
+deleteFile(){
+	cd "$dataDir" || return
+	local filename
+	local fileID
+	local rsp
+	filename="$(findFile "$1")"
+	fileID="$(findFileId "$filename")"
+	[ ! -e "$filename" ] && exit 1
+	echo -n "Are you sure? [yN] "
+	read -r rsp
+	if [[ "$(echo "$rsp" | tr '[:upper:]' '[:lower:]')" = "y"* ]]; then
+		rm "$filename"
+		# This deletes the file from the sql database and any tag links
+		echo "DELETE FROM items
+			WHERE id = '$(safeSQL "$fileID")';
+			DELETE FROM links
+			WHERE itemID = '$(safeSQL "$fileID")';" |
+			sqlite3 --column --header "${sqliteFile}"
+	fi
+}
+

inc/init

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+initKnowledgeBase(){
+	local output
+	necho -e "${YELLOW}Initialising Knowledge base${NC}"
+	vecho "Directory: $dataDir"
+	if [ "$verbose" -gt 0 ]; then
+		output="/dev/stdout"
+	else
+		output="/dev/null"
+	fi
+	[ -e "$dataDir" ]  && die "$dataDir already exists"
+	mkdir -p "$dataDir"
+	if [ "$dogit" -gt 0 ]; then
+		git init "$dataDir" > "$output"
+		
+		# TODO: make gitignore use new sqlite file
+		echo "/knowledgebase.sqlite3" >> "${dataDir}/.gitignore"
+
+		git -C "$dataDir" add .gitignore > "$output"
+		git -C "$dataDir" commit -m "Knowledge base initialised" > output
+	fi
+	vecho "Creating Database"
+	echo 'CREATE TABLE items
+	(id integer primary key, filename text, title text, type text);
+	CREATE TABLE tags
+	(id integer primary key, name text);
+	CREATE TABLE links
+	(id integer primary key, itemID integer, tagID integer); ' |
+	sqlite3 "${sqliteFile}"
+	necho -e "${GREEN}Initialised Knowledge base${NC}"
+}
+

inc/tag-management

@@ -0,0 +1,66 @@
+#!/usr/bin/env bash
+
+assignTags(){
+	local filename
+	local tags
+	local tagIDs
+	local tagIDsOr
+	local fileID
+	filename="$(findFile "$1")"
+	[ ! -e "$filename" ] && exit 1
+	tags="$(cat - | sed '/^$/d')"
+	fileID="$(findFileId "$filename")"
+	# If there are tags
+	if [ -n "$tags" ]; then
+		local values
+		local orlist
+		while read -r line; do
+			values+=",('$(safeSQL "$line")')"
+			orlist+=" OR name = '$(safeSQL "$line")'"
+		done <<<"$(echo "$tags")"
+		values="$(echo "$values" | sed 's/^,//')"
+		orlist="$(echo "$orlist" | sed 's/^ OR //')"
+		
+		# Ensure that all the tags exist
+		echo "INSERT INTO tags (name) VALUES $values
+			EXCEPT SELECT name FROM tags;" |
+				sqlite3 "${sqliteFile}"
+
+		# Get the tag ids we need to assosiate with the current file
+		tagIDs="$(echo "SELECT id FROM tags WHERE $orlist" |
+			sqlite3 "${sqliteFile}")"
+		
+		#Loop through them all
+		while read -r tagID; do
+			tagIDsOr+=" OR tagID = $(safeSQL "$tagID")"
+			
+			# Check the tag is already linkded with the file
+			local existing
+			existing="$(echo "SELECT id FROM links
+				WHERE itemID = $(safeSQL "$fileID")
+				AND tagID = $(safeSQL "$tagID")" |
+				sqlite3 "${sqliteFile}"
+			)"
+
+			# If not, add a link
+			if [ -z "$existing" ]; then
+				echo "INSERT INTO links (itemID,tagID)
+				VALUES ($(safeSQL "$fileID"),$(safeSQL "$tagID"))" |
+				sqlite3 "${sqliteFile}"
+			fi
+		done <<<"$(echo "$tagIDs")"
+		tagIDsOr="$(echo "$tagIDsOr" | sed 's/^ OR //')"
+
+		# Delete any links that are not in the list
+		echo "DELETE FROM links
+		WHERE itemID = $(safeSQL "$fileID")
+		AND NOT ( $tagIDsOr )" |
+		sqlite3 "${sqliteFile}"
+
+	else # If there are no tags, simply delete any that are referenced
+		echo "DELETE FROM links WHERE itemID = '$(safeSQL "$fileID")'" |
+			sqlite3 "${sqliteFile}"
+	fi
+	
+
+}

inc/yaml

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+getYamlBlock(){
+	vecho "getYamlBlock $*"
+	cd "$dataDir" || return
+	local filename
+	filename="$(findFile "$1")"
+
+	sed -n '1 { /^---/ { :a N; /\n---/! ba; p} }' "$filename" |
+		sed '1d;$d;s/\t/    /g'
+}
+
+getYamlTitle(){
+	vecho "getYamlTitle $*"
+	cd "$dataDir" || return
+	getYamlBlock "$1" | yq -r '.Title'
+}
+
+getYamlTags(){
+	vecho "getYamlTitle $*"
+	cd "$dataDir" || return
+	getYamlBlock "$1" | yq -r '.Tags | join("\n")'
+}
+