Archiving and optimization of local Zoom recordings and chat logs

zoom_archiving.sh

#!bin/sh

# What it does:
# - Chat logs archived in a zoom_archive subfolder with the date and name of the meeting in the filename
# - Video recordings resized down (to a maximum width of 980 px) and renamed (date and name of meeting + number)
# - All other files (playlists, audio recordings) moved to the trash

cd ~/Zoom

# For each subfolder
for D in */; do

  # Archiving of chat logs
  if test -f "${D}meeting_saved_chat.txt"; then
    cat ${D}meeting_saved_chat* >"$(basename $D) chat.txt"
    mv "$(basename $D) chat.txt" ~/Zoom/zoom_archive
    trash ${D}meeting_saved_chat*
  fi

  # Archiving of closed captions
  if test -f "${D}closed_caption.txt"; then
    cat ${D}closed_caption* >"$(basename $D) closed_caption.txt"
    mv "$(basename $D) closed_caption.txt" ~/Zoom/zoom_archive
    trash ${D}closed_caption*
  fi

  # Archiving of screenshots
  n=1
  for i in ${D}*.png; do
    name="$(basename $D) screenshot$((n++)).jpg"
    sips -s format jpeg -s formatOptions 85 "${i}" --out "${name}"
    sips -Z 1280 "${name}"
    imageoptim "${name}"
    mv "${name}" ~/Zoom/zoom_archive
    trash "${i}"
  done
done

# Removing unnecessary files
trash ~/Zoom/**/*.m3u
trash ~/Zoom/**/*.m4a
trash ~/Zoom/**/chat.txt

# Removing all initial video recordings smaller than 1 MB (= shorter than 20-25 seconds)
find ~/Zoom -name 'zoom_*.mp4' -type f -size -1M -print0 | xargs -0 trash

# Reducing MP4 files in size and renaming them
for video in ~/Zoom/**/zoom_[0-9].mp4; do
  newname="$(dirname "$video") $(basename "$video" .mp4 | sed -e 's/zoom_//').mp4"
  ffmpeg -i "$video" -c:v libx264 -vf scale=w=980:h=-1:force_original_aspect_ratio=decrease "$newname"
  if find "$newname" -type f -size +1c 2>/dev/null | grep -q .; then
    trash "$video"
  else
    trash "$newname"
  fi
done

for video in ~/Zoom/**/zoom_[0-9].mp4; do
  newname="$(dirname "$video") $(basename "$video" .mp4 | sed -e 's/zoom_//').mp4"
  ffmpeg -i "$video" -c:v libx264 -vf scale=w=960:h=-1:force_original_aspect_ratio=decrease "$newname"
  if find "$newname" -type f -size +1c 2>/dev/null | grep -q .; then
    trash "$video"
  else
    trash "$newname"
  fi
done