initial commit

pkgs/bulk-rename/bulk-rename.sh

@@ -0,0 +1,137 @@
+#!/bin/bash
+
+# Function to display usage
+usage() {
+    echo "Usage: bulk-rename [directory]"
+    echo "       bulk-rename [file1 file2 ...]"
+    echo ""
+    echo "If files are provided as arguments, they will be renamed."
+    echo "If a directory is provided, all files in that directory will be renamed."
+    echo "If no arguments are provided, files in current directory will be renamed."
+}
+
+# Function to cleanup temporary files
+cleanup() {
+    [ -n "$index" ] && [ -f "$index" ] && rm -f "$index"
+    [ -n "$index_edit" ] && [ -f "$index_edit" ] && rm -f "$index_edit"
+}
+
+# Set trap to ensure cleanup on exit
+trap cleanup EXIT
+
+# Check for help flag
+if [[ "$1" == "-h" || "$1" == "--help" ]]; then
+    usage
+    exit 0
+fi
+
+# Create temporary files
+index=$(mktemp /tmp/bulk-rename-index.XXXXXXXXXX) || exit 1
+index_edit=$(mktemp /tmp/bulk-rename.XXXXXXXXXX) || exit 1
+
+# Determine target directory and what files to rename
+target_dir="."
+if [ $# -eq 0 ]; then
+    # No arguments - use current directory
+    shopt -s nullglob dotglob
+    files=(*)
+    if [ ${#files[@]} -gt 0 ]; then
+        printf '%s\n' "${files[@]}" > "$index"
+    fi
+elif [ -d "$1" ] && [ $# -eq 1 ]; then
+    # Single directory argument
+    target_dir="$1"
+    if [ "$target_dir" = "." ]; then
+        target_dir="$(pwd)"
+    fi
+    shopt -s nullglob dotglob
+    files=("$target_dir"/*)
+    # Extract just the filenames
+    for file in "${files[@]}"; do
+        [ -e "$file" ] && basename "$file"
+    done | sort > "$index"
+else
+    # File arguments - assume current directory for now
+    # TODO: Handle files from different directories properly
+    for file in "$@"; do
+        if [ -e "$file" ]; then
+            basename "$file"
+        else
+            echo "Warning: $file does not exist" >&2
+        fi
+    done > "$index"
+fi
+
+# Check if we have any files to rename
+if [ ! -s "$index" ]; then
+    echo "No files to rename"
+    exit 0
+fi
+
+# Copy index to edit file
+cat "$index" > "$index_edit"
+
+# Get editor (same priority as lf)
+EDITOR="${EDITOR:-${VISUAL:-vi}}"
+
+# Open editor
+"$EDITOR" "$index_edit"
+
+# Check if line counts match
+original_lines=$(wc -l < "$index")
+edited_lines=$(wc -l < "$index_edit")
+
+if [ "$original_lines" -ne "$edited_lines" ]; then
+    echo "Error: Number of lines must stay the same ($original_lines -> $edited_lines)" >&2
+    exit 1
+fi
+
+# Process the renames
+echo "Processing renames in $target_dir..."
+success_count=0
+error_count=0
+
+max=$((original_lines + 1))
+counter=1
+
+while [ $counter -le $max ]; do
+    a=$(sed "${counter}q;d" "$index")
+    b=$(sed "${counter}q;d" "$index_edit")
+    
+    counter=$((counter + 1))
+    
+    # Skip if names are the same
+    [ "$a" = "$b" ] && continue
+    
+    # Full paths for source and destination
+    source_path="$target_dir/$a"
+    dest_path="$target_dir/$b"
+    
+    # Check if destination already exists
+    if [ -e "$dest_path" ]; then
+        echo "Error: File exists: $b" >&2
+        error_count=$((error_count + 1))
+        continue
+    fi
+    
+    # Check if source exists
+    if [ ! -e "$source_path" ]; then
+        echo "Error: Source file does not exist: $a" >&2
+        error_count=$((error_count + 1))
+        continue
+    fi
+    
+    # Perform rename
+    if mv "$source_path" "$dest_path"; then
+        echo "Renamed: $a -> $b"
+        success_count=$((success_count + 1))
+    else
+        echo "Error: Failed to rename $a -> $b" >&2
+        error_count=$((error_count + 1))
+    fi
+done
+
+echo "Summary: $success_count successful, $error_count errors"
+
+# Exit with error code if there were errors
+[ $error_count -gt 0 ] && exit 1 || exit 0

pkgs/bulk-rename/default.nix

@@ -0,0 +1,16 @@
+{
+  writeShellApplication,
+  ...
+}:
+
+let
+  name = "bulk-rename";
+  text = builtins.readFile ./${name}.sh;
+in
+writeShellApplication {
+  inherit name text;
+  meta.mainProgram = name;
+
+  runtimeInputs = [
+  ];
+}