progress bars

dedupe

@@ -1,4 +1,5 @@
-#!/bin/sh
+#!/bin/bash
+VERSION=$(date -r "$0" '+%Y-%m-%d')
 depth="-maxdepth 1"
 dry_run=""
 
@@ -20,7 +21,78 @@ while [ $# -gt 0 ]; do
   shift
 done
 
-find . $depth -type f -exec md5sum {} + | sort | awk -v dry_run="${dry_run:-0}" '
+# colors
+YEL=$'\033[1;33m'
+BLU=$'\033[1;34m'
+CYN=$'\033[1;36m'
+WHT=$'\033[1;37m'
+DIM=$'\033[2;37m'
+RED=$'\033[1;31m'
+RST=$'\033[0m'
+
+progress_bar() {
+  local current=$1
+  local total=$2
+  local width=36
+
+  local pct filled
+  if [ "$total" -eq 0 ]; then
+    pct=100; filled=$width
+  else
+    pct=$((current * 100 / total))
+    filled=$((current * width / total))
+  fi
+  local empty=$((width - filled))
+
+  # Pac-Man mouth alternates open/closed
+  local pac
+  if (( current % 2 == 0 )); then pac="${YEL}ᗧ${RST}"; else pac="${YEL}ᗤ${RST}"; fi
+
+  # eaten section: yellow dots
+  local eaten=""
+  if (( filled > 0 )); then
+    eaten="${YEL}"
+    for (( i=0; i<filled; i++ )); do eaten+="·"; done
+    eaten+="${RST}"
+  fi
+
+  # uneaten section: dim dots with ghosts sprinkled in
+  local ahead=""
+  if (( empty > 0 )); then
+    local ghost_positions=()
+    if (( empty >= 6 )); then ghost_positions+=( $((empty / 3)) ); fi
+    if (( empty >= 12 )); then ghost_positions+=( $((empty * 2 / 3)) ); fi
+
+    ahead="${DIM}"
+    for (( i=0; i<empty; i++ )); do
+      local is_ghost=0
+      for gp in "${ghost_positions[@]}"; do
+        if (( i == gp )); then is_ghost=1; break; fi
+      done
+      if (( is_ghost )); then
+        ahead+="${RST}${CYN}ᗣ${RST}${DIM}"
+      else
+        ahead+="·"
+      fi
+    done
+    ahead+="${RST}"
+  fi
+
+  printf "\r  %s%s%s  ${WHT}%3d%%${RST} ${DIM}(%d/%d)${RST}" \
+    "$eaten" "$pac" "$ahead" "$pct" "$current" "$total" >&2
+}
+
+printf "${YEL}ᗧ··ᗤ${RST}  ${WHT}dedupe${RST} ${DIM}v${VERSION}${RST}\n" >&2
+printf "${DIM}  scanning...${RST}" >&2
+total_files=$(find . $depth -type f | wc -l | tr -d ' ')
+printf "\r${YEL}ᗧ${RST}  Hashing ${WHT}%d${RST} files...\n" "$total_files" >&2
+
+count=0
+find . $depth -type f | while IFS= read -r file; do
+  count=$((count + 1))
+  progress_bar "$count" "$total_files"
+  md5sum "$file"
+done | sort | awk -v dry_run="${dry_run:-0}" '
 BEGIN { first = 1; total = 0 }
 
 $1 != prev && prev != "" {
@@ -68,3 +140,5 @@ END {
   else
     while IFS= read -r f; do rm -f "$f" 2>/dev/null; done
   fi
+
+printf "\n" >&2