Project

General

Profile

1 9014 aaronmk
#!/bin/bash -e
2
. "$(dirname "${BASH_SOURCE[0]}")"/util.sh
3 13185 aaronmk
.rel sync.sh
4 9014 aaronmk
5
if self_not_included; then
6
7
# using prefixed connection vars
8 9641 aaronmk
alias ssh2local='declare prefix=ssh_; import_vars; unset prefix
9
declare $(prefix=ssh_ get_prefix_vars); unset $(prefix=ssh_ get_prefix_vars)'
10 9464 aaronmk
alias use_local='declare prefix=local_; import_vars; unset prefix'
11
alias use_remote='declare prefix=remote_; import_vars; unset prefix'
12 11784 aaronmk
alias use_local_remote='{ use_remote; use_local; }'
13 9167 aaronmk
	# *must* be run inside a function
14 9574 aaronmk
alias use_root='declare prefix=root_; import_vars; unset prefix'
15 9014 aaronmk
16
quote='"'
17
18 9074 aaronmk
esc_name() { echo "$quote${1//$quote/$quote$quote}$quote"; }
19 9014 aaronmk
20 9423 aaronmk
mk_esc_name_alias() # usage: mk_esc_name_alias schema_esc
21 9426 aaronmk
{ alias mk_"$1"='declare '"$1"'="${'"$1"':-$(esc_name "$'"${1%_esc}"'")}"; '\
22
'echo_vars '"$1"; }
23 9014 aaronmk
24 9423 aaronmk
mk_esc_name_alias schema_esc
25
mk_esc_name_alias table_esc
26
27 9470 aaronmk
fi # load new aliases
28
if self_being_included; then
29
30 9623 aaronmk
skip_table() # usage: create_table || table=... skip_table || return 0
31
{ what="table $table" already_exists_msg; }
32
33 9817 aaronmk
: "${test=$(isset limit; exit2bool)}" # test mode when using limited # rows
34
35 9698 aaronmk
# usage: (set_large_table; to_file db_cmd...) || return
36
alias set_large_table='declare del="${del-$(test "$limit"; exit2bool)}"
37
echo_vars del'
38
39 11578 aaronmk
limit() # usage: "query... $([prefix=$'| |\n'] [limit|n=#] limit)"
40 9467 aaronmk
{
41
	echo_func; kw_params prefix; local prefix="${prefix-
42
}"
43 11578 aaronmk
	if isset n; then local limit="${limit-$n}"; fi
44 9467 aaronmk
	echo -n "${limit:+${prefix}LIMIT $limit}"
45
}
46
47 10401 aaronmk
cols2list() # usage: cols2list col...
48
{ echo_func; cmd=esc_name foreach_arg; delim=', ' join "$@"; }
49
50 10827 aaronmk
mk_select() # usage: {query=... | table=... [cols=...] [filter=...] \
51 11579 aaronmk
# [order_by=...]} [limit|n=#] mk_select
52 9468 aaronmk
{
53
	echo_func; kw_params query table cols filter; mk_table_esc
54 10827 aaronmk
	if is_array cols    ; then cols="$(    cols2list "${cols[@]}"    )"; fi
55
	if is_array order_by; then order_by="$(cols2list "${order_by[@]}")"; fi
56 9468 aaronmk
	echo "$(rtrim "${query:-SELECT ${cols:-*} ${cols:+
57 9335 aaronmk
}FROM $table_esc
58
${filter:+WHERE $filter
59 10827 aaronmk
}${order_by:+ORDER BY $order_by
60 9467 aaronmk
}}")\
61
$(limit)"
62 9468 aaronmk
}
63 9088 aaronmk
64 9468 aaronmk
# export func usage: export_func() { ...; mk_select_var; ... }
65
# caller usage: {query=... | table=... [cols=...] [filter=...]} export_func
66
# cmd line usage: [limit=...] caller
67
alias mk_select_var='declare query="$(mk_select)"'
68
69 9014 aaronmk
fi # load new aliases
70
if self_being_included; then
71
72 9482 aaronmk
mk_drop() # usage: table=... mk_drop|*sql_ANSI
73
{
74 12828 aaronmk
	log_local; log++; echo_func; kw_params table; : "${table?}"; mk_table_esc
75 9482 aaronmk
	echo "DROP TABLE IF EXISTS $table_esc"
76
}
77
78 9465 aaronmk
mk_truncate() # usage: table=... mk_truncate|*sql_ANSI
79 9432 aaronmk
{
80 12828 aaronmk
	log_local; log++; echo_func; kw_params table; : "${table?}"; mk_table_esc
81 9432 aaronmk
	echo "TRUNCATE $table_esc"
82
}
83 9014 aaronmk
84 9432 aaronmk
85 9014 aaronmk
### MySQL
86
87 9094 aaronmk
alias set_database=\
88
'if test "$schema"; then declare database="${database-$schema}"; fi'
89
90
fi # load new aliases
91
if self_being_included; then
92
93 9099 aaronmk
# usage: mysql*() { ...; mysql_cmd "$@"; } (with alias)
94 10888 aaronmk
# caller usage: [ssh_server=...] [server=...] [user=...] [password=...] mysql*()
95 9099 aaronmk
function mysql_cmd() # usage: mysql*() { ...; mysql_cmd cmd "$@"; }
96 9271 aaronmk
# auto-adds connection/login opts when specified
97 9014 aaronmk
{
98
	echo_func
99 9099 aaronmk
	local cmd="$1"; shift
100 9014 aaronmk
	local ssh_server="$(localize_url "$ssh_server")"
101
	local server="$(localize_url "$server")"
102 9050 aaronmk
	if test "$ssh_server"; then
103 9014 aaronmk
		local ssh_dest="${ssh_dest-${ssh_user:+$ssh_user@}$ssh_server}"
104
	fi
105
106
	local var=ssh_dest; local_inv
107 9701 aaronmk
	command "time" ${ssh_dest:+ssh "$ssh_dest" }"$cmd" \
108 9014 aaronmk
${server:+ --host="$server" }${user:+--user="$user" } --password\
109 9694 aaronmk
${password+="$password"} --quick "$@" # --quick: don't buffer entire result
110 9014 aaronmk
}
111 9099 aaronmk
alias mysql_cmd='mysql_cmd "$FUNCNAME"'
112 9014 aaronmk
113 9099 aaronmk
fi # load new aliases
114
if self_being_included; then
115
116 10887 aaronmk
function mysql() # usage: [database=...] [data_only=1] [log_queries=] mysql ...
117 9095 aaronmk
{
118 9578 aaronmk
	echo_func; kw_params output_data data_only query_verbosity
119 9557 aaronmk
	if test "$data_only"; then local output_data="${output_data-1}"; fi
120 9578 aaronmk
	local log_queries="${log_queries-1}"
121 9095 aaronmk
	set_database
122 9101 aaronmk
123 9557 aaronmk
	set -- ${database:+--database="$database" }--local-infile=1 \
124
--${data_only:+skip-}column-names "$@"
125 9150 aaronmk
	if test "$output_data"; then echo_stdin|mysql_cmd --batch "$@"
126 9591 aaronmk
	else cmd_log_fd=1 mysql_cmd ${log_queries:+--verbose --verbose --verbose }\
127
"$@" # --verbose*3: echo runtimes
128 9101 aaronmk
	fi
129 9095 aaronmk
}
130 9014 aaronmk
131 9074 aaronmk
mysql_ANSI()
132 9014 aaronmk
{
133
	echo_func
134
	(echo "SET sql_mode = 'ANSI';"; cat)|mysql "$@"
135
}
136
137 13168 aaronmk
# always use ANSI mode, to support "" identifiers. `` *are* still supported in
138 9706 aaronmk
# this mode, so it also works with SHOW CREATE TABLE output and dumpfiles.
139
alias mysql='mysql_ANSI'
140
141 9707 aaronmk
fi # load new aliases
142
if self_being_included; then
143
144
mysql_root() { echo_func; use_root; mysql "$@"; }
145
146 9777 aaronmk
mysql_truncate() { echo_func; mk_truncate|mysql; }
147 9466 aaronmk
148 9456 aaronmk
mysql_import() # usage: table=... [cols=...] [append=1] mysql_import <file
149
# without append=1, first ensures the table is empty
150 9430 aaronmk
{
151
	echo_func
152
	mk_table_esc
153
	local mysql_load_data_format="${mysql_load_data_format-\
154
FIELDS TERMINATED BY ','
155
OPTIONALLY ENCLOSED BY '\"'
156
}"
157
158 9466 aaronmk
	if test ! "$append"; then mysql_truncate; fi
159 9430 aaronmk
	mysql_load_data_format="${mysql_load_data_format%
160
}"
161 9642 aaronmk
	ssh2local # ssh does not tunnel nonstandard fds
162 9777 aaronmk
	mysql "$@" 40<&0 <<EOF
163 9651 aaronmk
LOAD DATA LOCAL INFILE '/dev/fd/40'
164 9660 aaronmk
${append:+IGNORE }INTO TABLE $table_esc
165 9430 aaronmk
$mysql_load_data_format
166
IGNORE 1 LINES
167
EOF
168
}
169
170 9152 aaronmk
mysql_export() # does not support CSV
171 10887 aaronmk
# caller usage: [database=...] {query=... | table=... [cols=...] [filter=...]} \
172
# mysql_export
173 9348 aaronmk
# cmd line usage: [limit=...] caller
174 9102 aaronmk
{
175
	echo_func
176 9463 aaronmk
	mk_select_var
177 9152 aaronmk
178 9777 aaronmk
	output_data=1 mysql "$@" <<<"$query"
179 9152 aaronmk
}
180
181
mysql_export_outfile() # supports CSV, but requires the FILE privilege
182
{
183
	echo_func
184 9102 aaronmk
	: "${file:?}"
185 9463 aaronmk
	mk_select_var
186 9102 aaronmk
	local mysql_load_data_format="${mysql_load_data_format-\
187
FIELDS TERMINATED BY ','
188
OPTIONALLY ENCLOSED BY '\"'
189
}"
190
191
	local head="${query%%FROM*}" # includes trailing newline
192 9105 aaronmk
	head="${head%
193
}"
194 9102 aaronmk
	local tail="${query#$head}"
195 9106 aaronmk
	mysql_load_data_format="${mysql_load_data_format%
196
}"
197 9777 aaronmk
	mysql "$@" <<EOF
198 9105 aaronmk
$head
199
INTO OUTFILE '$file'
200 9106 aaronmk
$mysql_load_data_format
201
$tail
202 9102 aaronmk
EOF
203
}
204
205 13184 aaronmk
## backups
206
207 10649 aaronmk
mysqldump() # usage: [schema=1 | data=1] [create_db=1] mysqldump db [table...]
208 9014 aaronmk
{
209 10649 aaronmk
	echo_func
210
	echo_vars schema data create_db
211 9231 aaronmk
212 10649 aaronmk
	local var=create_db; local_inv
213
	mysql_cmd ${database:+--databases "$database" ${no_create_db:+--tables }} \
214 9694 aaronmk
--lock-tables=false --set-charset \
215 10446 aaronmk
${postgres_compat:+${data:+--compatible=postgresql }--add-locks=false }\
216 9014 aaronmk
${schema:+--no-data }${data:+--no-create-info }"$@"
217
}
218
219 9074 aaronmk
mysqldump_diffable()
220 9014 aaronmk
{
221
	echo_func
222 9550 aaronmk
	mysqldump "$@"|{ pipe_delay; echo_run sed 's/^(-- Dump completed).*$/\1/'; }
223 9014 aaronmk
}
224
225 9588 aaronmk
mysql_rm_privileged_statements()
226
{
227
	echo_func
228
	grep -vE -e '^/\*!40000 ALTER TABLE `.*` (DIS|EN)ABLE KEYS \*/;$' \
229
-e '^(UN)?LOCK TABLES( `.*` WRITE)?;$'
230
}
231 9017 aaronmk
232 9632 aaronmk
## permissions
233 9588 aaronmk
234 9632 aaronmk
mysql_seal_table() # usage: table=... user=... mysql_seal_table
235
# prevents further modifications to a table by a user
236
{
237 9634 aaronmk
	echo_func; kw_params table user; : "${table:?}" "${user:?}"; mk_table_esc
238 9632 aaronmk
239 9635 aaronmk
	benign_error=1 mysql_root <<<"REVOKE ALL PRIVILEGES ON $table FROM '$user'@'%'" || true
240 9636 aaronmk
	benign_error=1 mysql_root <<<"REVOKE GRANT OPTION   ON $table FROM '$user'@'%'" || true
241 9632 aaronmk
}
242
243 13184 aaronmk
## server admin
244 9632 aaronmk
245 13184 aaronmk
mysql_ctl() # usage: mysql_ctl {start|stop|restart|...}
246 13191 aaronmk
{
247
	echo_func
248
	pattern='^stop: Unknown instance:' ignore_e=1 ignore_err_msg \
249
sudo service mysql "$@" # ignore errors if not running
250
}
251 13184 aaronmk
252 13264 aaronmk
mysql_snapshot() # usage: [live=] [from=...] [to=...] mysql_snapshot rsync_opts
253 13185 aaronmk
{
254 13259 aaronmk
	echo_func; kw_params from to; local from="${from:-/var/lib/mysql}"
255 13264 aaronmk
	ctl=mysql_ctl db_snapshot "$@"
256 13185 aaronmk
}
257 13184 aaronmk
258 13185 aaronmk
259 9014 aaronmk
### PostgreSQL
260
261 9648 aaronmk
alias use_pg='declare prefix=pg_; import_vars; unset prefix'
262
263 9649 aaronmk
fi # load new aliases
264
if self_being_included; then
265
266 10763 aaronmk
# usage: pg_*() { ...; pg_cmd "$@"; } (uses alias)
267
function pg_cmd() # usage for fn: pg_*() { ...; pg_cmd cmd "$@"; }
268
# auto-adds connection/login opts when specified
269 9646 aaronmk
{
270 13165 aaronmk
	echo_func; kw_params as_root
271 9646 aaronmk
272 9649 aaronmk
	use_pg
273 12828 aaronmk
	log_local
274 10154 aaronmk
	log- 2
275 11356 aaronmk
	if test "$server";   then local PGHOST="$server";       export PGHOST; fi
276
	if test "$user";     then local PGUSER="$user";         export PGUSER; fi
277 12846 aaronmk
	if test "$password"; then local PGPASSWORD="$password"; log++ export PGPASSWORD;fi
278 11356 aaronmk
	if test "$database"; then local PGDATABASE="$database"; export PGDATABASE;fi
279 9649 aaronmk
	log+ 2
280
281 13183 aaronmk
	time if test "$as_root"; then sudo -u postgres "$@"; else command "$@"; fi
282 10763 aaronmk
}
283
alias pg_cmd='"pg_cmd" "${FUNCNAME%%__*}"'
284
285
fi # load new aliases
286
if self_being_included; then
287
288 13279 aaronmk
psql() # usage: [stdin=copy_pstdin_file|<(pstdin_cmd)] [output_data=1] psql \
289 12739 aaronmk
# <<<"cmds (eg. \copy from pstdin)"
290 11360 aaronmk
# SUDO_USER: when set, avoids outputting to /dev/fd/#, because this causes a
291
# "Permission denied" error when running as sudo on Linux
292 10763 aaronmk
{
293 12739 aaronmk
	echo_func; kw_params stdin output_data
294 12740 aaronmk
	local bypass_ok="$(! isset SUDO_USER; exit2bool)"; echo_vars bypass_ok
295
	local verbose_="$(test "$bypass_ok" && can_log; exit2bool)"
296 12737 aaronmk
		echo_vars verbose_
297 12740 aaronmk
	local data_bypasses_filter="$(test "$output_data" -a "$bypass_ok";
298 12739 aaronmk
		exit2bool)"; echo_vars data_bypasses_filter
299 10763 aaronmk
300 12737 aaronmk
	if test "$verbose_"; then set -- --echo-all --echo-hidden "$@"; fi
301 9651 aaronmk
	local redirs=("${redirs[@]}" '40<&0' "0<${stdin:-&20}" '41>&1')
302 9646 aaronmk
	(
303 10295 aaronmk
		# hide stack traces/DETAIL sections of error messages at verbosity <2
304 12829 aaronmk
		if ! log++ can_log; then echo '\set VERBOSITY terse'; fi
305 12738 aaronmk
		if test "$verbose_"; then echo '\timing on'; fi
306
		echo "SET client_min_messages = \
307
$(if test "$verbose_"; then echo NOTICE; else echo WARNING; fi);"
308 9646 aaronmk
		cat
309 12740 aaronmk
	)|cmd_log_fd=${bypass_ok:+1} pg_cmd --file /dev/fd/40 \
310 12739 aaronmk
${data_bypasses_filter:+--output /dev/fd/41 }--set ON_ERROR_STOP=1 --quiet "$@"\
311 12731 aaronmk
|| verbosity_min=2 die_error_hidden
312 9646 aaronmk
		# --output is for query *results*, not echoed statements
313
}
314
315 10755 aaronmk
pg_export() # usage: mk_select_opts... [pg_copy_format=CSV...] pg_export >out
316 9014 aaronmk
{
317
	echo_func
318 9463 aaronmk
	mk_select_var
319 9014 aaronmk
	local pg_copy_format="${pg_copy_format-CSV HEADER}"
320
321 12739 aaronmk
	output_data=1 psql "$@" <<<"COPY ($query) TO STDOUT $pg_copy_format;"
322 9014 aaronmk
}
323
324 9074 aaronmk
pg_header()
325 9014 aaronmk
{
326
	echo_func
327
	local pg_copy_format="CSV HEADER" limit=0
328 9083 aaronmk
	pg_export "$@"|echo_stdout
329 9014 aaronmk
}
330
331 9074 aaronmk
pg_export_table_no_header()
332 9014 aaronmk
{
333
	echo_func
334
	local pg_copy_format="CSV"
335 9083 aaronmk
	pg_export "$@"
336 9014 aaronmk
}
337
338 10825 aaronmk
pg_export_table_to_dir()
339
{
340
	echo_func
341
	local table="$1"; shift; mk_table_esc
342
	stdout="$exports_dir/$table.csv" to_file pg_export "$@"
343
}
344
345 9074 aaronmk
pg_export_table_to_dir_no_header()
346 9014 aaronmk
{
347
	echo_func
348
	local table="$1"; shift; mk_table_esc
349 9476 aaronmk
	stdout="$exports_dir/$table.no_header.cols=$(pg_header).csv" to_file \
350 9042 aaronmk
pg_export_table_no_header "$@"
351 9014 aaronmk
}
352
353 13262 aaronmk
## backups
354
355 13166 aaronmk
pg_dump() # usage: database={...|} [schema=...] [struct=1 | data=1] [owners=1] \
356
# [compress=1] [create_schema=] [users=1] pg_dump [opts...] >out
357
# database='': entire cluster
358 10764 aaronmk
{
359 13166 aaronmk
	echo_func;kw_params database struct data owners compress create_schema users
360
	: "${database?}"
361 10775 aaronmk
	local create_schema="${create_schema-1}"
362 10764 aaronmk
363
	# subset
364
	if test "$schema"; then set -- --schema="\"$schema\"" "$@"; fi
365 13166 aaronmk
	if test "$struct"; then set -- "$@" --schema-only; fi
366
	if test "$data"  ; then set -- "$@" --data-only  ; fi
367 10764 aaronmk
368 13166 aaronmk
	if test "$database"; then # just one DB
369
		# format
370
		if test ! "$owners"; then set -- "$@" --no-owner   ; fi
371
		if test "$compress"; then set -- "$@" --format=custom --compress=9
372
							 else set -- "$@" --format=plain --inserts
373 10774 aaronmk
		fi
374
375 13166 aaronmk
		(
376
			# filter output
377
			if test ! "$create_schema"; then
378
				fd=1 redirs= filter_fd sed 's/^CREATE SCHEMA/--&/'
379
			fi
380
381
			pattern='^pg_dump: No matching tables were found$' ignore_err_msg \
382 12193 aaronmk
pg_cmd "$@"
383 13166 aaronmk
		)
384
	else # entire cluster
385
		# subset
386
		if test "$users"; then set -- "$@" --globals-only; fi
387
388
		(cd /; as_root=1 "pg_cmd" pg_dumpall "$@")
389
	fi
390 10764 aaronmk
}
391
392 13262 aaronmk
## DB structure
393
394 12800 aaronmk
pg_schema_exists() # usage: schema=... pg_schema_exists
395 11855 aaronmk
{
396
	echo_func; : "${schema:?}"; mk_schema_esc
397 12800 aaronmk
	pattern='cannot create temporary relation in non-temporary schema' \
398 12829 aaronmk
ignore_e=3 log++ stderr_matches psql <<<"CREATE TEMP TABLE $schema_esc.t ()"
399 11855 aaronmk
}
400
401 11859 aaronmk
pg_require_schema() # usage: schema=... pg_require_schema
402
{
403
	echo_func; : "${schema:?}"
404 12806 aaronmk
	pg_schema_exists || die "schema $schema does not exist"
405 11859 aaronmk
}
406
407 12800 aaronmk
pg_table_exists() # usage: [schema=...] table=... pg_table_exists
408 11768 aaronmk
{
409
	echo_func; : "${table:?}"; mk_table_esc
410 12865 aaronmk
	! pattern='relation .* does not exist' \
411 12829 aaronmk
ignore_e=3 log++ stderr_matches psql <<<"SELECT NULL FROM $table_esc LIMIT 0"
412 11768 aaronmk
}
413
414 13262 aaronmk
## server admin
415
416
pg_ctl() # usage: pg_ctl {start|stop|restart|...}
417
{
418
	echo_func
419
	sudo service postgresql "$@"
420
}
421
422 13264 aaronmk
pg_snapshot() # usage: [live=] [from=...] [to=...] pg_snapshot rsync_opts...
423 13262 aaronmk
{
424
	echo_func; kw_params from to; local from="${from:-/var/lib/postgresql}"
425 13264 aaronmk
	ctl=pg_ctl db_snapshot "$@"
426 13262 aaronmk
}
427
428 9014 aaronmk
fi