From e52a69735c03d01e6bb128c0b04c3c6ee28802ce Mon Sep 17 00:00:00 2001
From: Ducky <ducky@zio.sh>
Date: Tue, 26 Sep 2023 02:13:31 +0100
Subject: [PATCH] osm-garmin: add Containerfile

---
 osm-garmin/Containerfile         |  12 +++
 osm-garmin/app/build-gmap.sh     | 146 +++++++++++++++++++++++++++++++
 osm-garmin/app/daemon.sh         |  45 ++++++++++
 osm-garmin/app/install-mkgmap.sh |  30 +++++++
 osm-garmin/app/utils.sh          |  61 +++++++++++++
 5 files changed, 294 insertions(+)
 create mode 100644 osm-garmin/Containerfile
 create mode 100755 osm-garmin/app/build-gmap.sh
 create mode 100644 osm-garmin/app/daemon.sh
 create mode 100644 osm-garmin/app/install-mkgmap.sh
 create mode 100644 osm-garmin/app/utils.sh

diff --git a/osm-garmin/Containerfile b/osm-garmin/Containerfile
new file mode 100644
index 0000000..31a73b9
--- /dev/null
+++ b/osm-garmin/Containerfile
@@ -0,0 +1,12 @@
+FROM registry.fedoraproject.org/fedora:38
+
+WORKDIR /app
+VOLUME /data
+COPY app/ /app
+
+RUN chmod +x /app/*.sh
+RUN dnf install --assumeyes --setopt=install_weak_deps=False java-1.8.0-openjdk nano unzip
+RUN /app/install-mkgmap.sh
+RUN dnf clean --assumeyes all
+
+CMD ["/app/bin/daemon.sh"]
\ No newline at end of file
diff --git a/osm-garmin/app/build-gmap.sh b/osm-garmin/app/build-gmap.sh
new file mode 100755
index 0000000..899f408
--- /dev/null
+++ b/osm-garmin/app/build-gmap.sh
@@ -0,0 +1,146 @@
+#!/usr/bin/env bash
+
+. /app/utils.sh
+
+region="$1"
+style="$2"
+
+cwd="$(pwd)"
+
+function build_gmap() {
+    region="$1"
+    style="$2"
+
+    region_shortname="$(get_region_shortname "$region")"
+
+    bounds_dir_md5="$(get_md5_dir "$bounds_dir")"
+    map_md5="$(get_md5 "$maps_dir/$region_shortname.osm.pbf")"
+    version="$(echo "$bounds_dir_md5|$map_md5" | md5sum | cut -d' ' -f1)"
+
+    generated_map_dir="$out_dir/$region_shortname/"
+    version_path="$generated_map_dir/version.txt"
+
+    build="true"
+    build_failed="false"
+
+    if [[ -n "$style" ]]; then
+        style="$styles_dir/$style.TYP"
+    fi
+
+    mkdir -p "$generated_map_dir"
+
+    if [[ -f "$version_path" ]]; then
+        if [[ $(cat "$version_path") == "$version" ]]; then
+            build="false"
+        fi
+    fi
+
+    if [[ $build == "true" ]]; then
+        cd "$build_dir"
+
+        exec_mkgmap \
+            --add-pois-to-areas \
+            --bounds="$bounds_dir" \
+            --gmapsupp \
+            --index \
+            --route \
+            $tiles_dir/$region_shortname/6324*.osm.pbf $style
+
+        [[ $? != 0 ]] && build_failed="true"
+        cd "$cwd"
+
+        if [[ $build_failed == "false" ]]; then
+            rm -f $generated_map_dir/*
+            
+            mv "$build_dir/gmapsupp.img" "$generated_map_dir/"
+            mv "$build_dir/osmmap.img" "$generated_map_dir/"
+            mv "$build_dir/osmmap.tdb" "$generated_map_dir/"
+            echo "$version" > "$version_path"
+
+            rm -f $build_dir/*
+        else
+            rm -f $build_dir/*
+        fi
+    fi
+}
+
+function cleanup() {
+    rm -f "$build_dir/*"
+}
+
+function exec_mkgmap() {
+    java -jar /opt/mkgmap/mkgmap.jar $@
+}
+
+function exec_splitter() {
+    java -jar /opt/splitter/splitter.jar $@
+}
+
+function update_bounds() {
+    function download_bounds() {
+        type="$1"
+        bounds_url_prefix="https://www.thkukuk.de/osm/data"
+        
+        curl -L --fail "$bounds_url_prefix/$type-latest.zip" -o "$bounds_dir/$type.zip"
+        unzip -o "$bounds_dir/$type.zip" -d "$bounds_dir"
+        rm -f "$bounds_dir/$type.zip"
+    }
+
+    download_bounds "bounds"
+    download_bounds "sea"
+}
+
+function update_osm_map() {
+    region="$1"
+    region_filename="$(get_region_shortname "$region").osm.pbf"
+    region_path="$maps_dir/$region_filename"
+
+    curl -L "$(get_pbf_url "$region")" -o "$region_path"
+}
+
+function update_tiles() {
+    region="$1"
+    region_tiles_dir="$tiles_dir/$(get_region_shortname "$region")"
+
+    mkdir -p "$region_tiles_dir"
+    rm -rf "$region_tiles_dir/*"
+    cd "$region_tiles_dir" # HACK: --output-dir doesn't work
+
+    exec_splitter "$maps_dir/$(get_region_shortname "$region").osm.pbf"
+
+    cd "$cwd"
+}
+
+mkdir -p "$bounds_dir"
+mkdir -p "$build_dir"
+mkdir -p "$maps_dir"
+mkdir -p "$out_dir"
+mkdir -p "$tiles_dir"
+
+if [[ -z $region ]]; then
+    die "No region specified"
+fi
+
+if [[ "$(check_osm_region_exists "$region")" == "true" ]]; then
+    echo "👀 Checking for OSM updates..."
+    if [[ "$(check_osm_update "$region")" == "true" ]]; then
+        [[ $? != 0 ]] && die "Region \"$region\" does not exist"
+
+        echo "🌍 Updating OSM map: $region"
+        update_osm_map "$region"
+
+        echo "📒 Updating bounds and sea..."
+        update_bounds
+
+        echo "✂️ Building tiles: $region"
+        update_tiles "$region"
+    fi
+
+    echo "🔨 Building Garmin map: $region"
+    build_gmap "$region" "$style"
+else
+    [[ $? != 0 ]] && die "Region \"$region\" does not exist"
+fi
+
+echo "🧹 Cleaning up..."
+cleanup
\ No newline at end of file
diff --git a/osm-garmin/app/daemon.sh b/osm-garmin/app/daemon.sh
new file mode 100644
index 0000000..01e8bdc
--- /dev/null
+++ b/osm-garmin/app/daemon.sh
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+
+. /app/utils.sh
+
+sleep_build_fail="10" # 10 seconds
+sleep_build_success="43200" # 12 hours
+sleep_no_update="3600" # 1 hour
+sleep_no_region="10" # 10 seconds
+
+function wait() {
+    time="$1"
+    action="$2"
+
+    message="💤 Sleeping $time seconds"
+    [[ -n "$action" ]] && message="$message ($action)"
+    message="$message..."
+
+    echo "$message"
+    sleep $time
+}
+
+while :
+do
+    regions="europe/andorra"
+    style="USERBEAM"
+
+    [[ -n "$OSMGARMIN_REGIONS" ]] && regions="$OSMGARMIN_REGIONS"
+    [[ -n "$OSMGARMIN_STYLE" ]] && style="$OSMGARMIN_STYLE"
+
+    regions_array="$(echo $regions | tr ";" "\n")"
+
+    for region in $regions_array; do
+        if [[ "$(check_osm_update "$region")" == "true" ]]; then
+            /app/build-gmap.sh "$region" "$style"
+
+            if [[ $? == 0 ]]; then
+                wait $sleep_build_success "build success"
+            else
+                wait $sleep_build_fail "build fail"
+            fi
+        else
+            wait $sleep_no_update "no update"
+        fi
+    done
+done
\ No newline at end of file
diff --git a/osm-garmin/app/install-mkgmap.sh b/osm-garmin/app/install-mkgmap.sh
new file mode 100644
index 0000000..296306b
--- /dev/null
+++ b/osm-garmin/app/install-mkgmap.sh
@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+
+cwd="$(pwd)"
+
+function install() {
+    product="$1"
+    version="$(curl -Ls "https://www.mkgmap.org.uk/download/$product.html" | grep "text: current().version" | sed -e "s/^[^=]*<span data-bind=\"text: current().version\">//g" | sed -e "s/<\/span>//g")"
+
+    cd "/tmp"
+
+    curl -Ls "https://www.mkgmap.org.uk/download/$product-r$version.zip" -o "$product.zip"
+
+    if [[ $? == 0 ]] && [[ -f "$product.zip" ]]; then
+        unzip "$product.zip"
+
+        if [[ -d "$product-r$version" ]]; then
+            mv "$product-r$version" "/opt/$product"
+            rm -f "$product.zip"
+        else
+            exit 255
+        fi
+    else
+        exit 255
+    fi
+
+    cd "$cwd"
+}
+
+install "mkgmap"
+install "splitter"
\ No newline at end of file
diff --git a/osm-garmin/app/utils.sh b/osm-garmin/app/utils.sh
new file mode 100644
index 0000000..b0a7b44
--- /dev/null
+++ b/osm-garmin/app/utils.sh
@@ -0,0 +1,61 @@
+#!/usr/bin/env bash
+
+bounds_dir="/data/build/bounds"
+build_dir="/data/build/tmp"
+maps_dir="/data/build/osm"
+out_dir="/data/maps"
+styles_dir="/data/styles"
+tiles_dir="/data/build/tiles"
+
+function die() {
+    echo "Error: $1"
+    exit 255
+}
+
+function check_osm_region_exists() {
+    region="$1"
+    exists="true"
+
+    curl -ILs --fail "$(get_pbf_url "$region")" 2> /dev/null
+    [[ $? != 0 ]] && exists="false"
+
+    echo $exists   
+}
+
+function check_osm_update() {
+    region="$1"
+    region_path="$maps_dir/$(get_region_shortname "$region").osm.pbf"
+    update="true"
+
+    md5="$(curl -Ls --fail "$(get_pbf_url "$region").md5" | cut -d' ' -f1)"
+    
+    if [[ $? == 0 ]]; then
+        if [[ -f "$region_path" ]]; then
+            if [[ "$(get_md5 "$region_path")" == "$md5" ]]; then
+                update="false"
+            fi
+        fi
+    fi
+
+    echo $update
+}
+
+function get_md5() {
+    file="$1"
+    echo "$(md5sum "$file" | cut -d' ' -f1)"
+}
+
+function get_md5_dir() {
+    dir="$1"
+    echo "$(find "$dir" -type f -name "*.*" -exec md5sum {} + | awk '{print $1}' | sort | md5sum)"
+}
+
+function get_pbf_url() {
+    region="$1"
+    echo "https://download.geofabrik.de/$region-latest.osm.pbf"
+}
+
+function get_region_shortname() {
+    region="$1"
+    echo "$(echo "$region" | sed "s/\//./g")"
+}
\ No newline at end of file