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#!/bin/bash -e
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. "$(dirname "${BASH_SOURCE[0]}")"/util.sh
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if self_not_included; then
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# using prefixed connection vars
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alias ssh2local='declare prefix=ssh_; import_vars; unset prefix
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declare $(prefix=ssh_ get_prefix_vars); unset $(prefix=ssh_ get_prefix_vars)'
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alias use_local='declare prefix=local_; import_vars; unset prefix'
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alias use_remote='declare prefix=remote_; import_vars; unset prefix'
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alias use_local_remote='{ use_local; use_remote; }'
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# *must* be run inside a function
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alias use_root='declare prefix=root_; import_vars; unset prefix'
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quote='"'
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esc_name() { echo "$quote${1//$quote/$quote$quote}$quote"; }
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mk_esc_name_alias() # usage: mk_esc_name_alias schema_esc
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{ alias mk_"$1"='declare '"$1"'="${'"$1"':-$(esc_name "$'"${1%_esc}"'")}"; '\
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'echo_vars '"$1"; }
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mk_esc_name_alias schema_esc
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mk_esc_name_alias table_esc
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fi # load new aliases
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if self_being_included; then
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skip_table() # usage: create_table || table=... skip_table || return 0
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{ what="table $table" already_exists_msg; }
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: "${test=$(isset limit; exit2bool)}" # test mode when using limited # rows
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# usage: (set_large_table; to_file db_cmd...) || return
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alias set_large_table='declare del="${del-$(test "$limit"; exit2bool)}"
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echo_vars del'
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limit() # usage: "query... $([prefix=$'| |\n'] limit)"
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{
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echo_func; kw_params prefix; local prefix="${prefix-
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}"
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echo -n "${limit:+${prefix}LIMIT $limit}"
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}
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cols2list() # usage: cols2list col...
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{ echo_func; cmd=esc_name foreach_arg; delim=', ' join "$@"; }
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mk_select() # usage: {query=... | table=... [cols=...] [filter=...]} mk_select
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{
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echo_func; kw_params query table cols filter; mk_table_esc
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if is_array cols; then cols="$(cols2list "${cols[@]}")"; fi
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echo "$(rtrim "${query:-SELECT ${cols:-*} ${cols:+
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}FROM $table_esc
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${filter:+WHERE $filter
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}}")\
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$(limit)"
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}
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# export func usage: export_func() { ...; mk_select_var; ... }
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# caller usage: {query=... | table=... [cols=...] [filter=...]} export_func
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# cmd line usage: [limit=...] caller
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alias mk_select_var='declare query="$(mk_select)"'
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fi # load new aliases
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if self_being_included; then
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mk_drop() # usage: table=... mk_drop|*sql_ANSI
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{
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log++; echo_func; kw_params table; : "${table?}"; mk_table_esc
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echo "DROP TABLE IF EXISTS $table_esc"
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}
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mk_truncate() # usage: table=... mk_truncate|*sql_ANSI
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{
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log++; echo_func; kw_params table; : "${table?}"; mk_table_esc
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echo "TRUNCATE $table_esc"
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}
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### MySQL
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alias set_database=\
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'if test "$schema"; then declare database="${database-$schema}"; fi'
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fi # load new aliases
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if self_being_included; then
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# usage: mysql*() { ...; mysql_cmd "$@"; } (with alias)
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function mysql_cmd() # usage: mysql*() { ...; mysql_cmd cmd "$@"; }
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# auto-adds connection/login opts when specified
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{
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echo_func
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local cmd="$1"; shift
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local ssh_server="$(localize_url "$ssh_server")"
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local server="$(localize_url "$server")"
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if test "$ssh_server"; then
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local ssh_dest="${ssh_dest-${ssh_user:+$ssh_user@}$ssh_server}"
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fi
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local var=ssh_dest; local_inv
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command "time" ${ssh_dest:+ssh "$ssh_dest" }"$cmd" \
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${server:+ --host="$server" }${user:+--user="$user" } --password\
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${password+="$password"} --quick "$@" # --quick: don't buffer entire result
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}
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alias mysql_cmd='mysql_cmd "$FUNCNAME"'
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fi # load new aliases
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if self_being_included; then
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function mysql() # usage: [output_data=1] [data_only=1] [log_queries=] mysql ...
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{
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echo_func; kw_params output_data data_only query_verbosity
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if test "$data_only"; then local output_data="${output_data-1}"; fi
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local log_queries="${log_queries-1}"
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set_database
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set -- ${database:+--database="$database" }--local-infile=1 \
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--${data_only:+skip-}column-names "$@"
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if test "$output_data"; then echo_stdin|mysql_cmd --batch "$@"
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else cmd_log_fd=1 mysql_cmd ${log_queries:+--verbose --verbose --verbose }\
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"$@" # --verbose*3: echo runtimes
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fi
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}
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mysql_ANSI()
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{
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echo_func
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(echo "SET sql_mode = 'ANSI';"; cat)|mysql "$@"
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}
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# always use ANSI mode, to support "" identifiers. `` are *still* supported in
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# this mode, so it also works with SHOW CREATE TABLE output and dumpfiles.
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alias mysql='mysql_ANSI'
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fi # load new aliases
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if self_being_included; then
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mysql_root() { echo_func; use_root; mysql "$@"; }
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mysql_truncate() { echo_func; mk_truncate|mysql; }
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mysql_import() # usage: table=... [cols=...] [append=1] mysql_import <file
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# without append=1, first ensures the table is empty
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{
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echo_func
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mk_table_esc
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local mysql_load_data_format="${mysql_load_data_format-\
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FIELDS TERMINATED BY ','
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OPTIONALLY ENCLOSED BY '\"'
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}"
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if test ! "$append"; then mysql_truncate; fi
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mysql_load_data_format="${mysql_load_data_format%
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}"
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ssh2local # ssh does not tunnel nonstandard fds
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mysql "$@" 40<&0 <<EOF
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LOAD DATA LOCAL INFILE '/dev/fd/40'
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${append:+IGNORE }INTO TABLE $table_esc
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$mysql_load_data_format
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IGNORE 1 LINES
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EOF
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}
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mysql_export() # does not support CSV
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# caller usage: {query=... | table=... [cols=...] [filter=...]} mysql_export
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# cmd line usage: [limit=...] caller
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{
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echo_func
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mk_select_var
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output_data=1 mysql "$@" <<<"$query"
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}
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mysql_export_outfile() # supports CSV, but requires the FILE privilege
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{
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echo_func
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: "${file:?}"
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mk_select_var
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local mysql_load_data_format="${mysql_load_data_format-\
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FIELDS TERMINATED BY ','
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OPTIONALLY ENCLOSED BY '\"'
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}"
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local head="${query%%FROM*}" # includes trailing newline
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head="${head%
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}"
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local tail="${query#$head}"
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mysql_load_data_format="${mysql_load_data_format%
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}"
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mysql "$@" <<EOF
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$head
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INTO OUTFILE '$file'
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$mysql_load_data_format
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$tail
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EOF
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}
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mysqldump() # usage: [schema=1 | data=1] [create_db=1] mysqldump db [table...]
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{
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echo_func
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echo_vars schema data create_db
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local var=create_db; local_inv
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mysql_cmd ${database:+--databases "$database" ${no_create_db:+--tables }} \
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--lock-tables=false --set-charset \
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${postgres_compat:+${data:+--compatible=postgresql }--add-locks=false }\
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${schema:+--no-data }${data:+--no-create-info }"$@"
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}
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mysqldump_diffable()
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{
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echo_func
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mysqldump "$@"|{ pipe_delay; echo_run sed 's/^(-- Dump completed).*$/\1/'; }
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}
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mysql_rm_privileged_statements()
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{
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echo_func
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grep -vE -e '^/\*!40000 ALTER TABLE `.*` (DIS|EN)ABLE KEYS \*/;$' \
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-e '^(UN)?LOCK TABLES( `.*` WRITE)?;$'
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}
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## permissions
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mysql_seal_table() # usage: table=... user=... mysql_seal_table
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# prevents further modifications to a table by a user
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{
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echo_func; kw_params table user; : "${table:?}" "${user:?}"; mk_table_esc
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benign_error=1 mysql_root <<<"REVOKE ALL PRIVILEGES ON $table FROM '$user'@'%'" || true
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benign_error=1 mysql_root <<<"REVOKE GRANT OPTION ON $table FROM '$user'@'%'" || true
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}
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### PostgreSQL
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alias use_pg='declare prefix=pg_; import_vars; unset prefix'
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fi # load new aliases
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if self_being_included; then
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# usage: pg_*() { ...; pg_cmd "$@"; } (uses alias)
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function pg_cmd() # usage for fn: pg_*() { ...; pg_cmd cmd "$@"; }
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# auto-adds connection/login opts when specified
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{
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echo_func
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use_pg
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log- 2
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local PGHOST="$server"; export PGHOST
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local PGUSER="$user"; export PGUSER
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local PGPASSWORD="$password"; export PGPASSWORD
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local PGDATABASE="$database"; export PGDATABASE
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log+ 2
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command "time" "$@"
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}
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alias pg_cmd='"pg_cmd" "${FUNCNAME%%__*}"'
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fi # load new aliases
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if self_being_included; then
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psql() # usage: [stdin=copy_pstdin_file] psql <<<"cmds, e.g. \copy from pstdin"
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{
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echo_func; kw_params stdin
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if can_log; then set -- --echo-all --echo-hidden "$@"; fi
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local redirs=("${redirs[@]}" '40<&0' "0<${stdin:-&20}" '41>&1')
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(
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# hide stack traces/DETAIL sections of error messages at verbosity <2
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if ! clog++ can_log; then echo '\set VERBOSITY terse'; fi
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if can_log; then cat <<'EOF'
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\timing on
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SET client_min_messages = NOTICE;
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EOF
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fi
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cat
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)|cmd_log_fd=1 pg_cmd --file /dev/fd/40 --output /dev/fd/41 \
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--set ON_ERROR_STOP=1 --quiet "$@"
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# --output is for query *results*, not echoed statements
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}
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pg_export() # usage: mk_select_opts... [pg_copy_format=CSV...] pg_export >out
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{
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echo_func
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mk_select_var
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local pg_copy_format="${pg_copy_format-CSV HEADER}"
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psql "$@" <<<"COPY ($query) TO STDOUT $pg_copy_format;"
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}
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pg_header()
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{
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echo_func
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local pg_copy_format="CSV HEADER" limit=0
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pg_export "$@"|echo_stdout
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}
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pg_export_table_no_header()
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{
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echo_func
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local pg_copy_format="CSV"
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pg_export "$@"
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}
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pg_export_table_to_dir_no_header()
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{
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echo_func
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local table="$1"; shift; mk_table_esc
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stdout="$exports_dir/$table.no_header.cols=$(pg_header).csv" to_file \
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pg_export_table_no_header "$@"
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}
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pg_dump() # usage: [schema=...] [struct=1 | data=1] [compress=1] [owners=1] \
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315
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# pg_dump [opts...] >out
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{
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echo_func; kw_params struct data plain owners; local struct="${struct-1}"
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# subset
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320
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if test "$schema"; then set -- --schema="\"$schema\"" "$@"; fi
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# format
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323
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if test "$compress"; then set -- "$@" --format=c --compress=9
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else set -- "$@" --format=p --inserts # plain
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fi
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if test "$struct" ; then set -- "$@" --schema-only; fi
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327
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if test "$data" ; then set -- "$@" --data-only ; fi
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328
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if test ! "$owners"; then set -- "$@" --no-owner ; fi
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pg_cmd "$@"
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}
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fi
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