Currently Working:
* creating files
* deleting files
* editing files
* viewing files
* searching by id
* git
- Initialises repository
- commits when a file is created or edited (except rename)
- arbitrary git commands on repo with `kb git ....`
* sql
- Database is kept up to date when files are added, deleted or
edited
TODO:
* Recreate database if deleted or freshly cloned
* Add database to gitignore if not in normal location
* Update database if edited without this tool
* Create a git commit if files are deleted or renamed
* makefile for install and test (currently just surecheck)
master
Jonathan Hodgson
3 years ago
commit
8ddda7f2b4
2 changed files with 687 additions and 0 deletions
@ -0,0 +1,40 @@ |
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# Knowledge Base |
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|
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This is a script that I use to manage my personal knowledge base. I have yet to |
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find a tool that fits my requirements / desires so I decided to build one. |
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|
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This is still in early stages of development so expect braking changes to come |
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if you use it. |
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|
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## Goals |
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|
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### Mostly Plain Text |
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|
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Most of my notes are currently in Markdown. This has a couple of advantages for |
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me: |
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|
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* I can read them anywhere |
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* I can version control them with Git |
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|
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There may be some exceptions. I may wish to include links or images which I will |
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version control with Git LFS; but for the most part, my notes are plain text. |
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|
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### Tags |
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|
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Before starting this project, my notes were organised into folders. |
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Unfortunately, this makes storing articles or notes that apply to different |
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areas difficult. I would prefer a tag based system. This would allow a file to |
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have multiple tags assigned to it. |
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|
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### Fast |
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|
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I want to be able to retrieve my notes quickly by tag or by title. To do this, |
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this tool will index notes using an SQLite database. This will not be version |
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controlled. |
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|
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### Don't re-invent the wheel |
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|
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I will be building on top of already great, fast tools such as |
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[RipGrep](https://github.com/BurntSushi/ripgrep) and |
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[FZF](https://github.com/junegunn/fzf). |
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|
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@ -0,0 +1,647 @@ |
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#!/usr/bin/env bash |
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|
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# Dependencies |
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# * bash (includes bash extentions that are not in posix shell eg [[ ]] |
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# * sqlite3 |
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# * sed |
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# * awk |
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# * tr |
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# * git |
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# * yq (https://github.com/kislyuk/yq) |
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# * fzf (https://github.com/junegunn/fzf) |
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# * rg (https://github.com/BurntSushi/ripgrep) |
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# * bat (https://github.com/sharkdp/bat) |
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|
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|
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|
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# Colour definitions |
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RED='\033[1;31m' |
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GREEN='\033[1;32m' |
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YELLOW='\033[1;33m' |
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NC='\033[0m' |
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|
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# Provide a variable with the location of this script. |
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#scriptPath="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" |
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|
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|
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# Utility functions |
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# ################################################## |
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|
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die(){ |
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necho -e "${RED}$*${NC}" >&2 |
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exit 1 |
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} |
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|
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# Normal echo |
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# Echo if quiet is 0 |
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necho(){ |
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if [ "$quiet" -eq 0 ]; then |
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echo "$@" |
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fi |
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} |
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|
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# verbose echo |
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# Echo if verbose is 1 |
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vecho(){ |
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if [ "$verbose" -eq 1 ]; then |
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echo "$@" |
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fi |
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} |
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|
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# Exits after any cleanup that may be needed |
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safeExit(){ |
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# TODO: Add cleanup |
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exit 0 |
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} |
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|
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|
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isInt() { |
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[ "$1" -eq "$1" ] 2> /dev/null |
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return "$?" |
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} |
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|
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|
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# Set Flags |
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# ----------------------------------- |
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# Flags which can be overridden by user input. |
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# Default values are below |
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# ----------------------------------- |
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quiet=0 |
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verbose=0 |
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debug=0 |
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dogit=1 |
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args=() |
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dataDir="${XDG_DATA_HOME:=$HOME/.local/share}/kb/" |
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sqliteFile="" |
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editor="${EDITOR:=vim}" |
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|
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# Check for Dependencies |
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# ----------------------------------- |
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# Arrays containing package dependencies needed to execute this script. |
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# The script will fail if dependencies are not installed. |
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# ----------------------------------- |
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checkDependencies(){ |
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local dependencies=( |
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"sqlite3" |
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"rg" |
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"fzf" |
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"sed" |
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"awk" |
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"tr" |
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"git" |
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"yq" |
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"bat" |
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) |
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local ret=0 |
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for program in "${dependencies[@]}"; do |
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if ! type "$program" &>/dev/null; then |
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necho -e "${RED}$program is not installed${NC}" |
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ret=1 |
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case "$program" in |
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"rg") |
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necho -e "\t${YELLOW}This provides effecient searching${NC}" |
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;; |
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"fzf") |
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necho -e "\t${YELLOW}This provides fuzzy searching${NC}" |
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;; |
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|
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esac |
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fi |
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done |
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return $ret |
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} |
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|
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initKnowledgeBase(){ |
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local output |
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necho -e "${YELLOW}Initialising Knowledge base${NC}" |
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vecho "Directory: $dataDir" |
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if [ "$verbose" -gt 0 ]; then |
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output="/dev/stdout" |
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else |
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output="/dev/null" |
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fi |
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[ -e "$dataDir" ] && die "$dataDir already exists" |
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mkdir -p "$dataDir" |
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if [ "$dogit" -gt 0 ]; then |
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git init "$dataDir" > "$output" |
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|
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# TODO: make gitignore use new sqlite file |
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echo "/knowledgebase.sqlite3" >> "${dataDir}/.gitignore" |
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|
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git -C "$dataDir" add .gitignore > "$output" |
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git -C "$dataDir" commit -m "Knowledge base initialised" > output |
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fi |
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vecho "Creating Database" |
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echo 'CREATE TABLE items |
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(id integer primary key, filename text, title text, type text); |
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CREATE TABLE tags |
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(id integer primary key, name text); |
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CREATE TABLE links |
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(id integer primary key, itemID integer, tagID integer); ' | |
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sqlite3 "${sqliteFile}" |
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necho -e "${GREEN}Initialised Knowledge base${NC}" |
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} |
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|
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# This will create a fresh database based on the files in the folder |
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makedb(){ |
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[ -f "$sqliteFile" ] && die "sqlite file already exists\ndelete it first if you want to" |
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echo "Still need to implement this" |
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} |
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|
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getYamlBlock(){ |
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vecho "getYamlBlock $*" |
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cd "$dataDir" || return |
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local filename |
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filename="$(findFile "$1")" |
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|
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sed -n '1 { /^---/ { :a N; /\n---/! ba; p} }' "$filename" | |
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sed '1d;$d;s/\t/ /g' |
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} |
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|
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getYamlTitle(){ |
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vecho "getYamlTitle $*" |
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cd "$dataDir" || return |
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getYamlBlock "$1" | yq -r '.Title' |
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} |
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|
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getYamlTags(){ |
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vecho "getYamlTitle $*" |
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cd "$dataDir" || return |
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getYamlBlock "$1" | yq -r '.Tags | join("\n")' |
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} |
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|
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# Makes file names safe |
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escapeFilename(){ |
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vecho "escapeFilename $*" |
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echo "$1" | |
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tr ' ' '_' | # replace spaces with underscores |
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tr -d '/' # Delete slashes |
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} |
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|
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findFileId(){ |
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local filename |
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filename="$(findFile "$1")" |
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[ ! -e "$filename" ] && exit 1 |
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echo "SELECT id FROM items WHERE filename = '$(safeSQL "$filename")'" | |
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sqlite3 "${sqliteFile}" |
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|
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} |
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|
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# Escapes ' and \ characters |
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safeSQL(){ |
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echo "$1" | |
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sed 's/\\/\\\\/g' | |
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sed "s/'/\\\'/g" |
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} |
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|
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|
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assignTags(){ |
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local filename |
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local tags |
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local tagIDs |
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local tagIDsOr |
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local fileID |
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filename="$(findFile "$1")" |
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[ ! -e "$filename" ] && exit 1 |
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tags="$(cat - | sed '/^$/d')" |
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fileID="$(findFileId "$filename")" |
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# If there are tags |
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if [ -n "$tags" ]; then |
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local values |
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local orlist |
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while read -r line; do |
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values+=",('$(safeSQL "$line")')" |
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orlist+=" OR name = '$(safeSQL "$line")'" |
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done <<<"$(echo "$tags")" |
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values="$(echo "$values" | sed 's/^,//')" |
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orlist="$(echo "$orlist" | sed 's/^ OR //')" |
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|
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# Ensure that all the tags exist |
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echo "INSERT INTO tags (name) VALUES $values |
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EXCEPT SELECT name FROM tags;" | |
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sqlite3 "${sqliteFile}" |
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|
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# Get the tag ids we need to assosiate with the current file |
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tagIDs="$(echo "SELECT id FROM tags WHERE $orlist" | |
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sqlite3 "${sqliteFile}")" |
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|
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#Loop through them all |
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while read -r tagID; do |
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tagIDsOr+=" OR tagID = $(safeSQL "$tagID")" |
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|
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# Check the tag is already linkded with the file |
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local existing |
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existing="$(echo "SELECT id FROM links |
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WHERE itemID = $(safeSQL "$fileID") |
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AND tagID = $(safeSQL "$tagID")" | |
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sqlite3 "${sqliteFile}" |
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)" |
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|
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# If not, add a link |
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if [ -z "$existing" ]; then |
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echo "INSERT INTO links (itemID,tagID) |
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VALUES ($(safeSQL "$fileID"),$(safeSQL "$tagID"))" | |
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sqlite3 "${sqliteFile}" |
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fi |
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done <<<"$(echo "$tagIDs")" |
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tagIDsOr="$(echo "$tagIDsOr" | sed 's/^ OR //')" |
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|
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# Delete any links that are not in the list |
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echo "DELETE FROM links |
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WHERE itemID = $(safeSQL "$fileID") |
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AND NOT ( $tagIDsOr )" | |
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sqlite3 "${sqliteFile}" |
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|
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else # If there are no tags, simply delete any that are referenced |
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echo "DELETE FROM links WHERE itemID = '$(safeSQL "$fileID")'" | |
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sqlite3 "${sqliteFile}" |
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fi |
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|
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|
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} |
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|
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newFile(){ |
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vecho "newFile $*" |
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cd "$dataDir" || return |
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# While there is a - at the begining |
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local title="$*" |
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if [ -z "$title" ]; then |
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echo -n "Enter a title: " |
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read -r title |
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fi |
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local filename |
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filename="$(escapeFilename "$title.md")" |
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[ -e "$filename" ] && die "$filename already exists" |
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echo -e "--- |
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Title: $title |
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Tags: |
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- |
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--- |
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" > "$filename" |
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echo "INSERT INTO items (filename, title, type) |
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VALUES ( '$(safeSQL "$filename")', '$(safeSQL "$title")', 'normal' );" | |
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sqlite3 "${sqliteFile}" |
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editFile "$filename" |
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} |
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|
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findFile(){ |
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vecho "findFile $*" |
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cd "$dataDir" || return |
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local filename |
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|
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if [ "$#" -eq 1 ] && isInt "$1"; then |
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filename="$(echo "SELECT filename |
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FROM items WHERE id = '$(safeSQL "$1")'" | |
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sqlite3 "${sqliteFile}")" |
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fi |
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|
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[ -z "$filename" ] && filename="$(escapeFilename "$*")" |
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if [ -e "$filename" ]; then |
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# If the file exists, return it |
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echo "$filename" |
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exit 0 |
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else |
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# If it exists with .md at the end, assume that was meant |
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# otherwise die |
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if [ -e "$filename.md" ]; then |
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echo "$filename.md" |
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exit 0 |
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else |
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die "No such file or ID $filename" |
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exit 1 |
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fi |
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fi |
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} |
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|
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dogit(){ |
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cd "$dataDir" || return |
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git "$@" |
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} |
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|
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# This function will add and commit a file after it has been edited |
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gitChange(){ |
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cd "$dataDir" || return |
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local filename="$1" |
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if [ "$dogit" -gt 0 ]; then |
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if [ -f "$filename" ]; then |
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if ! git diff --exit-code "$filename" > /dev/null 2>&1; then |
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# Changes |
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git add "$filename" |
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git commit -m "KB auto-commit: Updated: $filename" |
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elif ! git ls-files --error-unmatch "$filename" > /dev/null 2>&1; then |
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# New file |
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git add "$filename" |
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git commit -m "KB auto-commit: New: $filename" |
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fi |
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fi |
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fi |
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} |
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|
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# Takes the filename as a parameter |
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editFile(){ |
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vecho "editFile $*" |
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cd "$dataDir" || return |
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local filename |
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local oldTitle |
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local newTitle |
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filename="$(findFile "$*")" |
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[ ! -e "$filename" ] && exit 1 |
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oldTitle="$(getYamlTitle "$filename")" |
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"$editor" "$filename" |
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newTitle="$(getYamlTitle "$filename")" |
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getYamlTags "$filename" | assignTags "$filename" |
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if [ "$newTitle" != "$oldTitle" ]; then |
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vecho "Changed title" |
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local newfilename |
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newfilename="$(escapeFilename "$newTitle.md")" |
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if [ -e "$newfilename" ]; then |
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echo -e "${YELLOW}File name $newfilename already exists${NC}" |
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echo -e "Please fix manually" |
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exit 1 |
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else |
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mv "$filename" "$newfilename" |
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echo "UPDATE items |
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SET (filename,title) = ('$(safeSQL "$newfilename")','$(safeSQL "$newTitle")') |
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WHERE filename = '$(safeSQL "$filename")';" | |
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sqlite3 "${sqliteFile}" |
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gitChange "$newfilename" |
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fi |
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else |
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gitChange "$filename" |
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fi |
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} |
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|
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listEntries(){ |
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vecho "listEntries $*" |
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cd "$dataDir" || return |
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echo "SELECT items.id,items.filename,items.title,items.type, |
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GROUP_CONCAT(tags.name,',') tags |
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FROM items LEFT JOIN links ON items.id = links.itemID |
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LEFT JOIN tags ON links.tagID = tags.id |
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GROUP BY items.id;" | |
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sqlite3 --column --header "${sqliteFile}" |
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} |
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|
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fuzzySelect(){ |
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cd "$dataDir" || return |
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local id |
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export -f fzfPreview |
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export dataDir |
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id="$(listEntries | fzf --header-lines=2 --delimiter=" +" --with-nth=3,5 \ |
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--preview='bash -c "fzfPreview {}"' | awk '{print $1}')" |
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if [ -n "$id" ]; then |
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case "$1" in |
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edit) editFile "$id"; safeExit ;; |
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view) viewFile "$id"; safeExit ;; |
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esac |
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fi |
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} |
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|
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fzfPreview(){ |
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cd "$dataDir" || return |
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|
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local id |
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local filename |
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local title |
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local type |
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local tags |
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|
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id="$(echo "$1" | awk -F ' +' '{print $1}')" |
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filename="$(echo "$1" | awk -F ' +' '{print $2}')" |
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title="$(echo "$1" | awk -F ' +' '{print $3}')" |
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type="$(echo "$1" | awk -F ' +' '{print $4}')" |
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tags="$(echo "$1" | awk -F ' +' '{print $5}')" |
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|
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if [ "$type" = "normal" ]; then |
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bat --color=always --style=numbers "$filename" |
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fi |
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} |
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|
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viewFile(){ |
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cd "$dataDir" || return |
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|
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local id="$1" |
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local filename |
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|
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filename="$(findFile "$id")" |
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|
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bat --color=always --style=full "$filename" |
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} |
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|
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deleteFile(){ |
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cd "$dataDir" || return |
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local filename |
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local fileID |
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local rsp |
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filename="$(findFile "$1")" |
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fileID="$(findFileId "$filename")" |
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[ ! -e "$filename" ] && exit 1 |
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echo -n "Are you sure? [yN] " |
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read -r rsp |
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if [[ "$(echo "$rsp" | tr '[:upper:]' '[:lower:]')" = "y"* ]]; then |
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rm "$filename" |
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# This deletes the file from the sql database and any tag links |
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echo "DELETE FROM items |
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WHERE id = '$(safeSQL "$fileID")'; |
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DELETE FROM links |
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WHERE itemID = '$(safeSQL "$fileID")';" | |
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sqlite3 --column --header "${sqliteFile}" |
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fi |
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} |
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|
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doDeepSearch(){ |
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cd "$dataDir" || return |
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local query="$1" |
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echo "$query" |
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rg --column --line-number --no-heading --color=always --smart-case "$query" |
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} |
||||
|
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doDeepPreview(){ |
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cd "$dataDir" || return |
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local file |
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local line |
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file="$(echo "$1" | cut -d ':' -f 1)" |
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line="$(echo "$1" | cut -d ':' -f 2)" |
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bat --color=always --style=numbers -H "$line" "$file" |
||||
} |
||||
|
||||
deepSearch(){ |
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type -p rg > /dev/null || die "You need rg installed for deep search" |
||||
export -f doDeepSearch |
||||
export -f doDeepPreview |
||||
export dataDir |
||||
echo "" | fzf --ansi \ |
||||
--bind 'change:reload:bash -c "doDeepSearch {q} || true"' \ |
||||
--preview 'bash -c "doDeepPreview {} || true"' |
||||
} |
||||
|
||||
mainScript() { |
||||
############## Begin Script Here ################### |
||||
#################################################### |
||||
if [ "${args[0]}" != "init" ]; then |
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cd "$dataDir" || return |
||||
# Check to see if datadir is a git repo |
||||
if git rev-parse 2> /dev/null; then |
||||
# If not, ensure we don't run git commands |
||||
dogit=0 |
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fi |
||||
fi |
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case "${args[0]}" in |
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init) initKnowledgeBase; safeExit ;; |
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makedb) makedb; safeExit ;; |
||||
new) newFile "${args[@]:1}"; safeExit ;; |
||||
edit) editFile "${args[@]:1}"; safeExit ;; |
||||
list) listEntries "${args[@]:1}"; safeExit ;; |
||||
view) viewFile "${args[@]:1}"; safeExit ;; |
||||
fuzzy) fuzzySelect "${args[@]:1}"; safeExit ;; |
||||
deepsearch) deepSearch "${args[@]:1}"; safeExit ;; |
||||
del|delete) deleteFile "${args[@]:1}"; safeExit ;; |
||||
git) dogit "${args[@]:1}"; safeExit ;; |
||||
*) usage >&2; safeExit ;; |
||||
esac |
||||
|
||||
|
||||
#################################################### |
||||
############### End Script Here #################### |
||||
} |
||||
|
||||
############## Begin Options and Usage ################### |
||||
|
||||
|
||||
# Print usage |
||||
usage() { |
||||
echo -n "kb [OPTIONS]... COMMAND |
||||
|
||||
Knowledge Base Management |
||||
|
||||
This tool helps manage my personal knowledge base |
||||
|
||||
Options: |
||||
-q, --quiet Quiet (no output) |
||||
-v, --verbose Output more information. (Items echoed to 'verbose') |
||||
-d, --debug Runs script in BASH debug mode (set -x) |
||||
-h, --help Display this help and exit |
||||
--data <directory> The knowledgebase data dir |
||||
--sqlite <file> The sqlite file (default to <data>/knowledgebase.sqlite3 |
||||
--nogit Don't run git commands |
||||
--version Output version information and exit |
||||
|
||||
Commands: |
||||
init Initialise a new knowledgebase |
||||
new [options] [title] Create new entry |
||||
--filetype <type> Type of file ( default md) |
||||
edit [title] Edit a file |
||||
list List all files |
||||
view View a file |
||||
fuzzy [command] Fuzzy select a file |
||||
command is what to do with the selected file |
||||
edit or view |
||||
git [options] Run arbitary git commands on the kb repository |
||||
del [title] Delete a file |
||||
" |
||||
} |
||||
|
||||
# Iterate over options breaking -ab into -a -b when needed and --foo=bar into |
||||
# --foo bar |
||||
optstring=h |
||||
unset options |
||||
while (($#)); do |
||||
case $1 in |
||||
# If option is of type -ab |
||||
-[!-]?*) |
||||
# Loop over each character starting with the second |
||||
for ((i=1; i < ${#1}; i++)); do |
||||
c=${1:i:1} |
||||
|
||||
# Add current char to options |
||||
options+=("-$c") |
||||
|
||||
# If option takes a required argument, and it's not the last char make |
||||
# the rest of the string its argument |
||||
if [[ $optstring = *"$c:"* && ${1:i+1} ]]; then |
||||
options+=("${1:i+1}") |
||||
break |
||||
fi |
||||
done |
||||
;; |
||||
|
||||
# If option is of type --foo=bar |
||||
--?*=*) options+=("${1%%=*}" "${1#*=}") ;; |
||||
# add --endopts for -- |
||||
--) options+=(--endopts) ;; |
||||
# Otherwise, nothing special |
||||
*) options+=("$1") ;; |
||||
esac |
||||
shift |
||||
done |
||||
set -- "${options[@]}" |
||||
unset options |
||||
|
||||
# Print help if no arguments were passed. |
||||
# Uncomment to force arguments when invoking the script |
||||
[[ $# -eq 0 ]] && set -- "--help" |
||||
|
||||
# Read the options and set stuff |
||||
while [[ $1 = -?* ]]; do |
||||
case $1 in |
||||
-h|--help) usage >&2; safeExit ;; |
||||
-v|--verbose) verbose=1 ;; |
||||
-q|--quiet) quiet=1 ;; |
||||
-d|--debug) debug=1;; |
||||
--data) dataDir="$2"; shift ;; |
||||
--sqlite) sqliteFile="$2"; shift ;; |
||||
--editor) editor="$2"; shift ;; |
||||
--nogit) dogit=0 ;; |
||||
--) shift; break ;; |
||||
*) die "invalid option: '$1'." ;; |
||||
esac |
||||
shift |
||||
done |
||||
|
||||
# If the sqlite file hasn't been specified on the command line, make it a file |
||||
# called knowledgebase.sqlite3 in the dataDir |
||||
[ -z "$sqliteFile" ] && sqliteFile="${dataDir}/knowledgebase.sqlite3" |
||||
|
||||
# Store the remaining part as arguments. |
||||
args+=("$@") |
||||
|
||||
############## End Options and Usage ################### |
||||
|
||||
|
||||
|
||||
|
||||
# ############# ############# ############# |
||||
# ## TIME TO RUN THE SCRIPT ## |
||||
# ## ## |
||||
# ## You shouldn't need to edit anything ## |
||||
# ## beneath this line ## |
||||
# ## ## |
||||
# ############# ############# ############# |
||||
|
||||
# Exit on error. Append '||true' when you run the script if you expect an error. |
||||
set -o errexit |
||||
|
||||
# Run in debug mode, if set |
||||
if [ "${debug}" == "1" ]; then |
||||
set -x |
||||
fi |
||||
|
||||
# Bash will remember & return the highest exitcode in a chain of pipes. |
||||
# This way you can catch the error in case mysqldump fails in `mysqldump |gzip`, for example. |
||||
set -o pipefail |
||||
|
||||
# Invoke the checkDependencies function to test for Bash packages |
||||
checkDependencies |
||||
|
||||
|
||||
# Run your script |
||||
mainScript |
||||
|
||||
safeExit # Exit cleanly |
||||
|
||||
[ -n "$KB_DIR" ] && dataDir="$KB_DIR" || |
||||
dataDir="${XDG_DATA_HOME:=$HOME/.local/share}/kb/" |
||||
|
||||
mkdir -p "$dataDir" |
||||
|
||||
|
||||
Loading…
Reference in new issue