bash-completion.sh
author František Kučera <franta-hg@frantovo.cz>
Tue, 20 Oct 2020 23:48:53 +0200
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# Relational pipes
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# Copyright © 2019 František Kučera (Frantovo.cz, GlobalCode.info)
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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_relpipe_tr_sql_completion_dsn() {
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	if type relpipe-out-nullbyte &> /dev/null; then
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		relpipe-tr-sql --list-data-sources | relpipe-out-nullbyte | while read -r -d '' name; do read -r -d '' description; echo $name; done
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	fi
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}
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_relpipe_tr_sql_completion() {
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	local w0 w1 w2
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	COMPREPLY=()
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	w0=${COMP_WORDS[COMP_CWORD]}
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	w1=${COMP_WORDS[COMP_CWORD-1]}
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	w2=${COMP_WORDS[COMP_CWORD-2]}
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	DATA_TYPE=(
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		"string"
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		"integer"
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		"boolean"
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	)
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	DATA_SOURCE_STRING=(
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		"Driver=SQLite3;Database=file::memory:"
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		"Driver=SQLite3;Database=file:temp-relpipe.sqlite"
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		"Driver=SQLite3;Database=file:/tmp/relpipe.sqlite"
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	)
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	if   [[ "$w1" == "--relation"      && "x$w0" == "x" ]];    then COMPREPLY=("''")
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	elif [[ "$w2" == "--relation"      && "x$w0" == "x" ]];    then COMPREPLY=('"SELECT * FROM "')
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	elif [[ "$w1" == "--type-cast"     && "x$w0" == "x" ]];    then COMPREPLY=("''")
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	elif [[ "$w2" == "--type-cast"                      ]];    then COMPREPLY=($(compgen -W "${DATA_TYPE[*]}" -- "$w0"))
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	elif [[ "$w1" == "--parameter"     && "x$w0" == "x" ]];    then COMPREPLY=("''")
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	elif [[ "$w1" == "--copy"          && "x$w0" == "x" ]];    then COMPREPLY=("'.+'")
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	elif [[ "$w1" == "--copy-renamed"  && "x$w0" == "x" ]];    then COMPREPLY=("'.+'")
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	elif [[ "$w2" == "--copy-renamed"  && "x$w0" == "x" ]];    then COMPREPLY=("'copy_of_\$0'")
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	elif [[ "$w1" == "--data-source-name"               ]];    then COMPREPLY=($(compgen -W "$(_relpipe_tr_sql_completion_dsn)" -- "$w0"))
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	elif [[ "$w1" == "--data-source-string"             ]];    then COMPREPLY=($(compgen -W "${DATA_SOURCE_STRING[*]}" -- "$w0"))
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	else
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		OPTIONS=(
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			"--relation"
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			"--type-cast"
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			"--parameter"
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			"--copy"
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			"--copy-renamed"
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			"--list-data-sources"
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			"--data-source-name"
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			"--data-source-string"
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		)
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		COMPREPLY=($(compgen -W "${OPTIONS[*]}" -- "$w0"))
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	fi
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}
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complete -F _relpipe_tr_sql_completion relpipe-tr-sql
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complete -F _relpipe_tr_sql_completion relpipe-in-sql