tests/simulate.sh

   1 #!/bin/sh
   2
   3 # This script pretends to be youtube-dl. It actually does nothing
   4 # except print fake output on a delay.
   5
   6 set -e
   7
   8 nsteps=80
   9 size=100.0
  10 rate=2.75
  11 dbfile="$(dirname "$0")/../simulation.db"
  12
  13 while [ -- != "$1" ]; do
  14     shift
  15 done
  16 shift
  17 id="$1"
  18
  19 # Persist download state across runs
  20 put() {
  21     if grep -q -- "$id" "$dbfile" 2>/dev/null; then
  22         sed -i.tmp "s/^$id.*/$id $1/" "$dbfile"
  23         rm -f "$dbfile.tmp"
  24     else
  25         printf "%s %s\n" "$id" "$1" >> "$dbfile"
  26     fi
  27 }
  28 get () {
  29     if grep -q -- "$id" "$dbfile" 2>/dev/null; then
  30         awk "/^$id/{print \$2}" "$dbfile"
  31     else
  32         echo 0
  33     fi
  34 }
  35
  36 printf '[youtube] %s: Downloading webpage\n' "$id"
  37 printf '[youtube] %s: Downloading video info webpage\n' "$id"
  38 printf '[youtube] %s: Extracting video information\n' "$id"
  39 printf '[download] Destination: %s\n' "$id.mp4"
  40 for i in $(seq $(get "$id") $((nsteps - 1))); do
  41     printf '[download] % 5.1f%% of % 2.2fMiB at % 2.2fMiB/s ETA %02d:%02d\n' \
  42            $((i * 100 / (nsteps - 1))) $size $rate \
  43            $(((nsteps - i - 1) / 60)) $(((nsteps - i - 1) % 60))
  44     put $i
  45     sleep 0.1
  46 done