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74 lines
2.1 KiB
Bash
74 lines
2.1 KiB
Bash
#!/usr/bin/env bash
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# vim:ts=4:sts=4:sw=4:et
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# args: bigquery-public-data.github_repos
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#
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# Author: Hari Sekhon
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# Date: 2020-09-25 14:46:21 +0100 (Fri, 25 Sep 2020)
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#
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# https://github.com/HariSekhon/DevOps-Bash-tools
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#
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# License: see accompanying Hari Sekhon LICENSE file
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#
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# If you're using my code you're welcome to connect with me on LinkedIn and optionally send me feedback to help steer this or other code I publish
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#
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# https://www.linkedin.com/in/HariSekhon
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#
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set -euo pipefail
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[ -n "${DEBUG:-}" ] && set -x
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srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC1090
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. "$srcdir/lib/utils.sh"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Lists all BigQuery tables in a given dataset by querying BigQuery's Information Schema for that dataset
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To list tables from a dataset in another project, just prefix the project eg. <project>.<dataset>
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Output Format:
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<project> <dataset> <table>
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FILTER environment variable will restrict to matching tables (matches against fully qualified table name <project>.<dataset>.<table>)
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Limited to 10,000 table names by default (increase max_rows in script if you have a bigger dataset than this)
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Tested on Google BigQuery
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"
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# used by usage() in lib/utils.sh
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# shellcheck disable=SC2034
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usage_args="[<project>.]<dataset>"
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help_usage "$@"
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min_args 1 "$@"
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dataset="$1"
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if ! [[ "$dataset" =~ ^[[:alnum:]_.-]+$ ]]; then
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die "invalid dataset name given (must contain only alphanumeric, dots, dashes and underscores): $dataset"
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fi
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# XXX: you might need to edit this
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max_rows=10000
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set +e
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output="$(bq query --quiet --headless --format=prettyjson --max_rows "$max_rows" --nouse_legacy_sql 'select table_catalog, table_schema, table_name FROM `'"$dataset"'.INFORMATION_SCHEMA.TABLES`;')"
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# shellcheck disable=SC2181
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if [ $? != 0 ]; then
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echo "$output" >&2
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exit 1
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fi
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set -e
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jq -r '.[] | [.table_catalog, .table_schema, .table_name] | @tsv' <<< "$output" |
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while read -r project dataset table; do
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if [ -n "${FILTER:-}" ] &&
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! [[ "$project.$dataset.$table" =~ $FILTER ]]; then
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continue
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fi
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printf '%s\t%s\t%s\n' "$project" "$dataset" "$table"
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done
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