From 2f952bd9eef2e453d7adbd5b2acc721f63193fe4 Mon Sep 17 00:00:00 2001
From: Alex Hyett <alex@hyett.me>
Date: Fri, 13 Sep 2024 11:32:41 +0100
Subject: [PATCH] Add sync script

---
 README.md   |   3 +-
 syncBlog.sh | 204 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 206 insertions(+), 1 deletion(-)
 create mode 100755 syncBlog.sh

diff --git a/README.md b/README.md
index 50790eb..4795950 100644
--- a/README.md
+++ b/README.md
@@ -3,4 +3,5 @@
 A collection of useful scripts that I use everyday
 
 - getStarred.sh - Get starred articles from Miniflux and copy to clipboard. [Notes](https://www.alexhyett.com/notes/getting-starred-items-from-miniflux/)
-- unstar.sh - Unstar all starred articles on Miniflux. [Notes](https://www.alexhyett.com/notes/getting-starred-items-from-miniflux/)
\ No newline at end of file
+- unstar.sh - Unstar all starred articles on Miniflux. [Notes](https://www.alexhyett.com/notes/getting-starred-items-from-miniflux/)
+- syncBlog.sh - The script I use to sync my notes and articles from Obsidian to my website. Converting the links. [Notes](https://www.alexhyett.com/notes/syncing-my-obsidian-notes-with-my-blog/)
\ No newline at end of file
diff --git a/syncBlog.sh b/syncBlog.sh
new file mode 100755
index 0000000..7c21a12
--- /dev/null
+++ b/syncBlog.sh
@@ -0,0 +1,204 @@
+#!/bin/bash
+set -Eeuo pipefail
+
+### USAGE ###
+#./syncBlog.sh --obsidian-dir "/path/to/obsidian" --blog-dir "/path/to/blog"
+###
+
+# Get the directory of the script
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+# Default values
+DEFAULT_OBSIDIAN_DIR="/Users/alex/Notes"
+DEFAULT_BLOG_DIR="/Users/alex/Projects/alexhyett-blog"
+
+# Parse command line arguments
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        --obsidian-dir)
+            OBSIDIAN_DIR="$2"
+            shift 2
+            ;;
+        --blog-dir)
+            BLOG_DIR="$2"
+            shift 2
+            ;;
+        *)
+            echo "Unknown option: $1"
+            exit 1
+            ;;
+    esac
+done
+
+# Set directory paths, using defaults if not provided
+OBSIDIAN_DIR="${OBSIDIAN_DIR:-$DEFAULT_OBSIDIAN_DIR}"
+BLOG_DIR="${BLOG_DIR:-$DEFAULT_BLOG_DIR}"
+
+WEBSITE_DIR="$OBSIDIAN_DIR/6. WEBSITE/"
+NOTES_DIR="$OBSIDIAN_DIR/5. GARDEN/"
+LAST_RUN_FILE="$SCRIPT_DIR/.last_run"
+
+# Print the directories being used
+echo "Using Obsidian directory: $OBSIDIAN_DIR"
+echo "Using Blog directory: $BLOG_DIR"
+# Function to log messages with timestamps
+log() {
+    echo "$(date '+%Y-%m-%d %H:%M:%S') $1"
+}
+
+# Function to get the last run date
+get_last_run_date() {
+    if [[ -f "$LAST_RUN_FILE" ]]; then
+        cat "$LAST_RUN_FILE"
+    else
+        echo "1970-01-01T00:00:00"
+    fi
+}
+
+# Function to update the last run date
+update_last_run_date() {
+    date +"%Y-%m-%dT%H:%M:%S" > "$LAST_RUN_FILE"
+}
+
+# Function to check if a file has been updated since last run
+is_file_updated() {
+    local file=$1
+    local last_run=$(get_last_run_date)
+    local updated=$(sed -n 's/^updated: //p' "$file")
+    
+    if [[ -z "$updated" ]]; then
+        return 0  # If no updated date, assume it needs processing
+    fi
+    
+    if [[ "$updated" > "$last_run" ]]; then
+        return 0  # File is newer
+    else
+        return 1  # File is older
+    fi
+}
+
+# Function to copy updated files
+copy_updated_files() {
+    local source_dir=$1
+    local dest_dir=$2
+    local file_count=0
+
+    while IFS= read -r -d '' file; do
+        if is_file_updated "$file"; then
+            mkdir -p "$(dirname "$dest_dir/${file#$source_dir}")"
+            cp "$file" "$dest_dir/${file#$source_dir}"
+            ((file_count++))
+        fi
+    done < <(find "$source_dir" -type f -name "*.md" -print0)
+
+    echo "$file_count"
+}
+
+##### SCRIPT START #####
+mkdir -p $BLOG_DIR/_staging
+
+# Copy updated website files to staging
+files=$(copy_updated_files "$WEBSITE_DIR" "$BLOG_DIR/_staging")
+if [[ "$files" != "0" ]]; then
+    log "Transferred $files updated website files to staging"
+fi
+
+# Copy updated notes files to staging
+files=$(copy_updated_files "$NOTES_DIR" "$BLOG_DIR/_staging/notes")
+if [[ "$files" != "0" ]]; then
+    log "Transferred $files updated notes files to staging"
+fi
+
+# Function to extract the permalink from YAML frontmatter
+extract_permalink() {
+    local note_file=$1
+    grep "^permalink:" "$note_file" | sed 's/^permalink: //'
+}
+
+# Function to process each note file
+process_notes() {
+    local note_file=$1
+    local debug_file=${note_file/$BLOG_DIR\/_staging/""}
+    local reference_notes_dir=$2
+    local temp_file=$(mktemp)
+    local modified=false
+
+    # Read through each line in the note file
+    while IFS= read -r line || [[ -n "$line" ]]; do
+        # Use a simpler regex pattern to find wiki links in the line
+        link_regex='\[\[([^|[]+)(\|([^[]+))?\]\]'
+        
+        # Replace links in the line
+        new_line=""
+        rest_of_line="$line"
+
+        while [[ $rest_of_line =~ $link_regex ]]; do
+            full_match="${BASH_REMATCH[0]}"
+            file_name="${BASH_REMATCH[1]}"
+            display_name="${BASH_REMATCH[3]:-$file_name}"
+            before="${rest_of_line%%"$full_match"*}"
+            after="${rest_of_line#*"$full_match"}"
+            
+            # Find the reference note file
+            note_full_path=$(find "$reference_notes_dir" -type f -iname "$file_name.md" | head -n 1)
+
+            echo $note_full_path
+            
+            replacement="$full_match" # Default replacement is the original link
+
+            # Extract the permalink if the reference note file exists
+            if [[ -n $note_full_path ]]; then
+                permalink=$(extract_permalink "$note_full_path")
+                if [[ -n $permalink ]]; then
+                    log "$debug_file: Found permalink: $permalink"
+                    replacement="[$display_name]($permalink)"
+                    modified=true
+                else
+                    log "$debug_file: No permalink found for: $note_full_path"
+                fi
+            else
+               log "$debug_file: No matching file found for: $file_name"
+            fi
+
+            new_line+="$before$replacement"
+            rest_of_line="$after"
+        done
+        
+        new_line+="$rest_of_line"
+        
+        # Write the processed line to the temp_file
+        echo "$new_line" >> "$temp_file"
+    done < "$note_file"
+
+    # If modifications were made, overwrite the original file; otherwise, delete the temp_file
+    if $modified; then
+        mv "$temp_file" "$note_file"
+    else
+        rm "$temp_file"
+    fi
+}
+
+log "Starting note processing"
+
+# Recursively find and process each Markdown note in the directory
+find "$BLOG_DIR/_staging" -type f -name "*.md" | while IFS= read -r note_file; do
+    process_notes "$note_file" "$BLOG_DIR/content"
+done
+
+log "Finished note processing"
+
+# Sync converted files to the blog directory
+output=$(rsync -zarvh --stats "$BLOG_DIR/_staging/" "$BLOG_DIR/content/" | grep -A 1 'files transferred')
+files=$(echo "$output" | awk '/files transferred/{print $NF}')
+
+if [[ "$files" != "0" ]]; then
+    log "Transferred $files files to blog"
+fi
+
+# Delete _staging dir
+rm -rf $BLOG_DIR/_staging
+
+# Update the last run date
+update_last_run_date
+
+log "Script completed successfully"