Lucas Vivohost
aa48304220
feat(images): consolidate resize automation workflow - Merge automatic and manual resize scripts - Detect portrait and landscape orientation automatically - Resize portrait images to x1080 - Resize landscape images to 1920px width - Support user-defined ImageMagick resize arguments - Convert JPG/JPEG files to PNG format - Create output directory automatically - Normalize filenames by replacing spaces with underscores - Add date prefix to generated files - Improve reliability with safer dimension detection - Add script documentation and usage examples
98 lines
2.4 KiB
Bash
Executable File
98 lines
2.4 KiB
Bash
Executable File
#!/bin/bash
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###############################################################################
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# Script Name: resize-images.sh
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#
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# Description:
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# Resizes JPG/JPEG images and converts them to PNG format.
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#
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# When no resize argument is supplied:
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# - Portrait images are resized to fit within 1080px height (x1080)
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# - Landscape images are resized to fit within 1920px width (1920)
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#
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# When a resize argument is supplied:
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# - The supplied resize value is used for all images.
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#
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# Additional features:
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# - Creates output directory NEW/ automatically.
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# - Optionally normalizes filenames by replacing spaces with underscores.
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# - Adds an optional date prefix to generated filenames.
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# - Converts JPG/JPEG images to PNG.
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#
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# Requirements:
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# - Bash
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# - ImageMagick (identify, convert)
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#
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# Usage:
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#
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# Automatic portrait/landscape sizing:
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# ./resize-images.sh
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#
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# Resize all images to width 2560:
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# ./resize-images.sh 2560
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#
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# Resize all images to height 1440:
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# ./resize-images.sh x1440
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#
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# Output:
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# NEW/<date>filename.png
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#
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###############################################################################
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DATE=$(date +"%d%m%y_")
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DEFAULT_RESIZE="auto"
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# Use supplied resize value or automatic mode
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if [[ -n "${1:-}" ]]; then
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DEFAULT_RESIZE="$1"
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fi
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# Create output directory
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mkdir -p NEW
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for file in *.jpg *.jpeg *.JPG *.JPEG; do
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[[ -f "$file" ]] || continue
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# Replace spaces in filenames
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file_new="$(echo "$file" | tr ' ' '_')"
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if [[ "$file_new" != "$file" ]]; then
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echo "Rename: $file -> $file_new"
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mv "$file" "$file_new"
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fi
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resize_var="$DEFAULT_RESIZE"
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# Automatic resize mode
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if [[ "$resize_var" == "auto" ]]; then
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dimensions=$(identify -quiet -format "%wx%h" "$file_new" 2>/dev/null)
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width=${dimensions%x*}
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height=${dimensions#*x}
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if [[ -n "$width" && -n "$height" ]]; then
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if (( height > width )); then
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resize_var="x1080"
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else
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resize_var="1920"
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fi
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else
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echo "Skipping invalid image: $file_new"
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continue
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fi
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fi
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output="NEW/${DATE}$(basename "${file_new%.*}").png"
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echo "Transform: $file_new -> $output ($resize_var)"
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convert -quiet \
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"$file_new" \
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-resize "$resize_var" \
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"$output"
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done
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echo "Finished." |