42 lines
1.3 KiB
Bash
Executable file
42 lines
1.3 KiB
Bash
Executable file
#!/bin/sh
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# Writes files to the current working directory
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PYTHON="$(dirname "$0")"/venv/bin/python
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if ! test -x "$PYTHON"; then
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echo "Create a virtual environment in $(dirname "$0")/venv first"
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exit 1
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fi
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previous_file=""
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while true; do
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# Get one shot of data
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data="$("$PYTHON" "$(dirname "$0")"/trainmap_backup.py)"
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if test $? -ne 0; then echo "Error: failed to fetch trainmap data" >&2; continue; fi
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timestamp="$(printf '%s\n' "$data" | jq ".timestamp / 1000 | round")"
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if test "$timestamp" = "" || test "$timestamp" -lt 1705410073 || test "$timestamp" -gt 4102441200; then echo "Error: timestamp '$timestamp' invalid" >&2; continue; fi
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file="$(date +%Y-%m-%d --date "@$timestamp").json"
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# Write the data to file
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printf '%s\n' "$data" >> "$file"
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# At the start of a new day, archive the previous day's file
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if test "$previous_file" == ""; then
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previous_file="$file"
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elif test "$file" != "$previous_file"; then
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if test -e "$previous_file.gz"; then
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echo "Warning: $previous_file.gz already exists, not archiving" >&2
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else
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gzip --best "$previous_file"
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fi
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previous_file="$file"
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fi
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# Sleep to start the next request at the next full minute
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seconds="$(date +%S)"
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sleep_for="$("$PYTHON" -c "print(60 - int('$seconds', 10) - 0.5)")"
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sleep "$sleep_for" || true
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done
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