Add resources mirror creation tool

share/mirror/Dockerfile

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+FROM alpine:latest
+
+ADD entrypoint.sh /entrypoint.sh
+
+RUN \
+  addgroup -g 1200 -S app && \
+  adduser -g 1200 -u 1200 -S app && \
+  apk add --upgrade --no-cache git zip && \
+  chmod +x /entrypoint.sh
+
+USER app
+VOLUME [ "/git", "/packed" ]
+ENTRYPOINT ["/entrypoint.sh"]

share/mirror/docker-compose.yml

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+version: '3'
+services:
+  mirror:
+    build: .
+    image: gres/st_mirror
+    restart: always
+    container_name: st_mirror
+    logging:
+      driver: json-file
+      options:
+        max-size: "10m"
+        max-file: "5"
+    volumes:
+      - ./git:/git
+      - ./packed:/packed

share/mirror/entrypoint.sh

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+#!/bin/sh
+
+pack() {
+  mkdir -p "$2"
+  for f in $(ls $1); do
+    source="$1/$f"
+    target="$2/$f"
+    if [ -d "$source" ]; then
+      pack "$source" "$target"
+    elif [ -f "$source" ]; then
+      if [ "$target.zip" -nt "$source" ]; then
+        echo "$source is up to date"
+        continue
+      fi
+      tmp=/tmp/archive.zip
+      echo "packing $source -> $tmp"
+      ls -l "$source"
+      zip -9 -j "$tmp" "$source"
+
+      echo "moving $tmp -> $target.zip"
+      mv "$tmp" "$target.zip"
+      chmod 444 "$target.zip"
+      ls -l "$target.zip"
+    fi
+  done
+}
+
+mirror() {
+  cur="$(pwd)"
+  url="$1"
+  dir="$2"
+  git_dir="/git/$dir"
+  pack_dir="/packed/$dir"
+  echo $url $git_dir $pack_dir
+  if [ -d $git_dir ]; then
+    echo "fetching"
+    cd $git_dir && git fetch --depth=1 origin master
+  else
+    echo "cloning"
+    git clone --depth=1 --single-branch "$url" $git_dir
+  fi
+  echo "packing"
+  pack "$git_dir" "$pack_dir"
+}
+
+while true; do
+  mirror 'git://anongit.freedesktop.org/libreoffice/dictionaries' 'dictionaries'
+  mirror 'https://github.com/tesseract-ocr/tessdata_best.git' 'tessdata_best'
+  echo "sleeping"
+  sleep 6h
+done