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https://github.com/Theodor-Springmann-Stiftung/KGPZ.git
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76 lines
2.1 KiB
Bash
76 lines
2.1 KiB
Bash
#!/bin/bash
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# Create a new directory for the renamed files
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mkdir -p renamed_files
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# Copy all jpg files to the new directory
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cp *.jpg renamed_files/
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# Change to the new directory
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cd renamed_files
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# Function to calculate days between two dates
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days_between() {
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date1=$(date -d "$1" +%s)
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date2=$(date -d "$2" +%s)
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echo $(( (date2 - date1) / 86400 ))
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}
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# Function to check if a date is Monday or Friday
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is_monday_or_friday() {
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day=$(date -d "$1" +%u)
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[[ $day == 1 ]] || [[ $day == 5 ]]
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}
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# Function to pad numbers with leading zeros
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pad() {
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printf "%03d" $1
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}
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# Initialize variables
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start_date="1764-02-03"
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# Sort files by name (which will sort them chronologically)
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for file in $(ls -1 1764-*.jpg | sort); do
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# Extract date from filename
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current_date=$(echo "$file" | grep -oP '\d{4}-\d{2}-\d{2}')
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# Calculate the issue number
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issue_number=1
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temp_date="$start_date"
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while [[ "$temp_date" != "$current_date" ]]; do
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if is_monday_or_friday "$temp_date"; then
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((issue_number++))
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fi
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temp_date=$(date -d "$temp_date + 1 day" +%Y-%m-%d)
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done
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# Count the number of files for this date
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pages_in_issue=$(ls -1 "$current_date"*.jpg | wc -l)
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# Determine the page number within this issue
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page_in_issue=$(echo "$file" | grep -oP '_(\d+)\.jpg$' | cut -d'_' -f2 | cut -d'.' -f1)
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# Calculate the starting page number for this issue
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starting_page=$((4 * (issue_number - 1) + 1))
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# Calculate the actual page number
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actual_page=$((starting_page + page_in_issue - 1))
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# Create new filename based on number of pages in the issue
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if [ $pages_in_issue -le 4 ]; then
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new_name="1764-$(pad $issue_number)-$(pad $actual_page).jpg"
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else
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if [ $page_in_issue -le 2 ] || [ $page_in_issue -gt $((pages_in_issue - 2)) ]; then
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new_name="1764-$(pad $issue_number)-$(pad $actual_page).jpg"
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else
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new_name="1764-$(pad $issue_number)b-$(pad $((page_in_issue - 2))).jpg"
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fi
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fi
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# Rename file
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mv "$file" "$new_name"
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done
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echo "Files have been renamed in the 'renamed_files' directory."
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