Project

General

Profile

1 702 aaronmk
Installation:
2 13764 aaronmk
	Check out svn:
3
		svn co https://code.nceas.ucsb.edu/code/projects/bien/trunk bien
4 8458 aaronmk
	cd bien/
5
	Install: make install
6 12226 aaronmk
		**WARNING**: This will delete the public schema of your VegBIEN DB!
7 8458 aaronmk
	Uninstall: make uninstall
8 12226 aaronmk
		**WARNING**: This will delete your entire VegBIEN DB!
9 8458 aaronmk
		This includes all archived imports and staging tables.
10 554 aaronmk
11 11515 aaronmk
Connecting to vegbiendev:
12 13284 aaronmk
	ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
13 13763 aaronmk
	cd /home/bien # should happen automatically at login
14 11515 aaronmk
15 14651 aaronmk
Single datasource refresh:
16 14653 aaronmk
	ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
17 14651 aaronmk
	# -> Maintenance > to back up the vegbiendev databases
18 14654 aaronmk
	# place updated extract in inputs/ACAD/_src/
19
	# place extracted flat file(s) in the appropriate table subdirs
20 14651 aaronmk
	rm=1 inputs/<datasrc>/run # reload staging tables
21
	make inputs/<datasrc>/reimport_scrub by_col=1 &
22
		# this works whether or not datasource is already imported
23 14652 aaronmk
	tail -150 inputs/<datasrc>/*/logs/public.log.sql # view progress
24 14651 aaronmk
	# -> Full database import > To re-run geoscrubbing
25
	# -> Full database import > To remake analytical DB
26
	# -> Maintenance > to back up the vegbiendev databases
27
28 13024 aaronmk
Notes on system stability:
29 14091 aaronmk
	**WARNING**: when shutting down the VM, always first stop Postgres:
30
		sudo service postgresql stop
31
		this prevents the OS from SIGKILLing Postgres, which sometimes causes
32
		database corruption
33 13024 aaronmk
34 12011 aaronmk
Notes on running programs:
35
	**WARNING**: always start with a clean shell, to avoid spurious bugs. the
36
		shell should not have changes to the env vars. (there have been bugs
37
		that went away after closing and reopening the terminal window.) note
38
		that running `exec bash` is not sufficient to *reset* the env vars.
39
40 11967 aaronmk
Notes on editing files:
41
	**WARNING**: shell scripts should always be read-only, so that editing them
42
		while an import is in progress will not crash the import (see
43
		http://vegpath.org/links/#**%20modifying%20a%20running%20shell%20script)
44
45 7287 aaronmk
Full database import:
46 12226 aaronmk
	**WARNING**: You must perform *every single* step listed below, to avoid
47 9499 aaronmk
		breaking column-based import
48 12011 aaronmk
	**WARNING**: always start with a clean shell, as described above under
49
		"Notes on running programs"
50 13021 aaronmk
	**IMPORTANT**: the beginning of the import should be scheduled at a time
51
		when the DB will not be needed for other uses. this is necessary because
52
		vegbiendev will be slow for the first few hours of the import, due to
53
		the import using all the available cores.
54 13000 aaronmk
	do steps under Maintenance > "to synchronize vegbiendev, jupiter, and
55
		your local machine"
56 8458 aaronmk
	On local machine:
57
		make inputs/upload
58 10025 aaronmk
		make inputs/upload live=1
59 14077 aaronmk
		make test by_col=1 # runtime: 1 h ("53m7.383s") @starscream
60 10549 aaronmk
			if you encounter errors, they are most likely related to the
61
				PostgreSQL error parsing in /lib/sql.py parse_exception()
62 8458 aaronmk
			See note under Testing below
63 13284 aaronmk
	ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
64 8458 aaronmk
	Ensure there are no local modifications: svn st
65 12998 aaronmk
	up
66 8458 aaronmk
	make inputs/download
67 10025 aaronmk
	make inputs/download live=1
68 8458 aaronmk
	For each newly-uploaded datasource above: make inputs/<datasrc>/reinstall
69
	Update the auxiliary schemas: make schemas/reinstall
70 12226 aaronmk
		**WARNING**: requires sudo access!
71 8458 aaronmk
		The public schema will be installed separately by the import process
72
	Delete imports before the last so they won't bloat the full DB backup:
73
		make backups/vegbien.<version>.backup/remove
74
		To keep a previous import other than the public schema:
75
			export dump_opts='--exclude-schema=public --exclude-schema=<version>'
76 13009 aaronmk
			# env var will be inherited by `screen` shell
77 13016 aaronmk
	restart Postgres to free up any disk space used by temp tables from the last
78
		import (this is apparently not automatically reclaimed):
79
		make postgres_restart
80 13022 aaronmk
	Make sure there is at least 1 TB of disk space on /: df -h
81
		although the import schema itself is only 315 GB, Postgres uses
82 13023 aaronmk
			significant temporary space at the beginning of the import.
83 13028 aaronmk
			the total disk usage oscillates between 1.2 TB and the entire disk
84
			for the first day (for import started @12:55:09, high-water marks of
85 13031 aaronmk
			1.7 TB @14:00:25, 1.8 TB @15:38:32; then next day w/ 2 datasources
86
			running: entire disk for 4 min @05:35:44, 1.8 TB @11:15:05).
87 8458 aaronmk
		To free up space, remove backups that have been archived on jupiter:
88
			List backups/ to view older backups
89
			Check their MD5 sums using the steps under On jupiter below
90
			Remove these backups
91 13423 aaronmk
	for full import:
92
		screen
93
		Press ENTER
94 14087 aaronmk
	$0 # nested shell to prevent errexit from closing the window
95 13422 aaronmk
	the following must happen within screen to avoid affecting the outer shell:
96 13428 aaronmk
	unset TMOUT # TMOUT causes shell to exit even with background processes
97
	set -o ignoreeof # prevent Ctrl+D from exiting shell to keep attached jobs
98 13426 aaronmk
	on local machine:
99
		unset n # clear any limit set in .profile (unless desired)
100
		unset log # allow logging output to go to log files
101 13424 aaronmk
	unset version # clear any version from last import, etc.
102
	if no commits have been made since the last import (eg. if retrying an
103
		import), set a custom version that differs from the auto-assigned one
104
		(would otherwise cause a collision with the last import):
105
		svn info
106
		extract the svn revision after "Revision:"
107
		export version=r[revision]_2 # +suffix to distinguish from last import
108
			# env var will be inherited by `screen` shell
109 13119 aaronmk
	to import just a subset of the datasources:
110 13427 aaronmk
		declare -ax inputs; inputs=(inputs/{src,...}/) # no () in declare on Mac
111 13119 aaronmk
			# array vars *not* inherited by `screen` shell
112
		export version=custom_import_name
113 10579 aaronmk
	Start column-based import: . bin/import_all
114
		To use row-based import: . bin/import_all by_col=
115 8458 aaronmk
		To stop all running imports: . bin/stop_imports
116 12226 aaronmk
		**WARNING**: Do NOT run import_all in the background, or the jobs it
117
			creates won't be owned by your shell.
118 8458 aaronmk
		Note that import_all will take up to an hour to import the NCBI backbone
119
			and other metadata before returning control to the shell.
120 12026 aaronmk
		To view progress:
121 14079 aaronmk
			tail inputs/{.,}??*/*/logs/$version.log.sql
122 13020 aaronmk
	note: at the beginning of the import, the system may send out CPU load
123
		warning e-mails. these can safely be ignored. (they happen because the
124
		parallel imports use all the available cores.)
125 13425 aaronmk
	for test import, turn off DB backup (also turns off analytical DB creation):
126 13429 aaronmk
		kill % # cancel after_import()
127 10850 aaronmk
	Wait (4 days) for the import to finish
128 14197 aaronmk
	**WARNING**: do *not* run backups/pg_snapshot while the import is running,
129
		due to continuously-changing files
130
	**WARNING**: do *not* run backups/pg_snapshot until the previous import has
131
		been replaced, to avoid running into disk space limits
132 8458 aaronmk
	To recover from a closed terminal window: screen -r
133 10583 aaronmk
	To restart an aborted import for a specific table:
134
		export version=<version>
135 11800 aaronmk
		(set -o errexit; make inputs/<datasrc>/<table>/import_scrub by_col=1 continue=1; make inputs/<datasrc>/publish) &
136 10588 aaronmk
		bin/after_import $! & # $! can also be obtained from `jobs -l`
137 8458 aaronmk
	Get $version: echo $version
138
	Set $version in all vegbiendev terminals: export version=<version>
139 13017 aaronmk
	When there are no more running jobs, exit `screen`: exit # not Ctrl+D
140 13025 aaronmk
	upload logs: make inputs/upload live=1
141 10025 aaronmk
	On local machine: make inputs/download-logs live=1
142 13030 aaronmk
	check for disk space errors:
143 14079 aaronmk
		grep --files-with-matches -F 'No space left on device' inputs/{.,}??*/*/logs/$version.log.sql
144 13030 aaronmk
		if there are any matches:
145
			manually reimport these datasources using the steps under
146
				Single datasource import
147
			bin/after_import &
148
			wait for the import to finish
149 14079 aaronmk
	tail inputs/{.,}??*/*/logs/$version.log.sql
150 13029 aaronmk
	In the output, search for "Command exited with non-zero status"
151
	For inputs that have this, fix the associated bug(s)
152
	If many inputs have errors, discard the current (partial) import:
153
		make schemas/$version/uninstall
154
	Otherwise, continue
155 8458 aaronmk
	In PostgreSQL:
156 11568 aaronmk
		Go to wiki.vegpath.org/VegBIEN_contents
157 11728 aaronmk
		Get the # observations
158
		Get the # datasources
159
		Get the # datasources with observations
160 11892 aaronmk
		in the r# schema:
161 11569 aaronmk
		Check that analytical_stem contains [# observations] rows
162 12148 aaronmk
		Check that source contains [# datasources] rows up through XAL. If this
163
			is not the case, manually check the entries in source against the
164
			datasources list on the wiki page (some datasources may be near the
165
			end depending on import order).
166 11568 aaronmk
		Check that provider_count contains [# datasources with observations]
167
			rows with dataset="(total)" (at the top when the table is unsorted)
168 9492 aaronmk
	Check that TNRS ran successfully:
169
		tail -100 inputs/.TNRS/tnrs/logs/tnrs.make.log.sql
170
		If the log ends in an AssertionError
171
			"assert sql.table_col_names(db, table) == header":
172
			Figure out which TNRS CSV columns have changed
173
			On local machine:
174 10784 aaronmk
				Make the changes in the DB's TNRS and public schemas
175
				rm=1 inputs/.TNRS/schema.sql.run export_
176 9492 aaronmk
				make schemas/remake
177 10785 aaronmk
				inputs/test_taxonomic_names/test_scrub # re-run TNRS
178 10784 aaronmk
				rm=1 inputs/.TNRS/data.sql.run export_
179 9492 aaronmk
				Commit
180 13284 aaronmk
			ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
181 9492 aaronmk
				If dropping a column, save the dependent views
182
				Make the same changes in the live TNRS.tnrs table on vegbiendev
183
				If dropping a column, recreate the dependent views
184
				Restart the TNRS client: make scrub by_col=1 &
185 9498 aaronmk
	Publish the new import:
186 12226 aaronmk
		**WARNING**: Before proceeding, be sure you have done *every single*
187 9498 aaronmk
			verification step listed above. Otherwise, a previous valid import
188
			could incorrectly be overwritten with a broken one.
189 10864 aaronmk
		make schemas/$version/publish # runtime: 1 min ("real 1m10.451s")
190 8458 aaronmk
	unset version
191 10027 aaronmk
	make backups/upload live=1
192 11897 aaronmk
	on local machine:
193
		make backups/vegbien.$version.backup/download live=1
194
			# download backup to local machine
195 12396 aaronmk
	ssh aaronmk@jupiter.nceas.ucsb.edu
196 8458 aaronmk
		cd /data/dev/aaronmk/bien/backups
197
		For each newly-archived backup:
198
			make -s <backup>.md5/test
199
			Check that "OK" is printed next to the filename
200
	If desired, record the import times in inputs/import.stats.xls:
201 11573 aaronmk
		On local machine:
202 8458 aaronmk
		Open inputs/import.stats.xls
203
		If the rightmost import is within 5 columns of column IV:
204
			Copy the current tab to <leftmost-date>~<rightmost-date>
205
			Remove the previous imports from the current tab because they are
206
				now in the copied tab instead
207
		Insert a copy of the leftmost "By column" column group before it
208
		export version=<version>
209 14079 aaronmk
		bin/import_date inputs/{.,}??*/*/logs/$version.log.sql
210 8458 aaronmk
		Update the import date in the upper-right corner
211 14079 aaronmk
		bin/import_times inputs/{.,}??*/*/logs/$version.log.sql
212 8458 aaronmk
		Paste the output over the # Rows/Time columns, making sure that the
213
			row counts match up with the previous import's row counts
214
		If the row counts do not match up, insert or reorder rows as needed
215
			until they do. Get the datasource names from the log file footers:
216 14079 aaronmk
			tail inputs/{.,}??*/*/logs/$version.log.sql
217 11573 aaronmk
		Commit: svn ci -m 'inputs/import.stats.xls: updated import times'
218 10885 aaronmk
	Running individual steps separately:
219 9497 aaronmk
	To run TNRS:
220 9996 aaronmk
		To use an import other than public: export version=<version>
221 13594 aaronmk
		to rescrub all names:
222
			make inputs/.TNRS/reinstall
223
			re-create public-schema views that were cascadingly deleted
224 9995 aaronmk
		make scrub &
225 8458 aaronmk
		To view progress:
226
			tail -100 inputs/.TNRS/tnrs/logs/tnrs.make.log.sql
227 14447 aaronmk
	To re-run geoscrubbing:
228
		$ screen
229
		# press Enter
230 14530 aaronmk
		# to use an import other than public: $ export version=<version>
231
		$ bin/psql_verbose_vegbien <<<'SELECT geoscrub_input_view_modify();' &
232 14536 aaronmk
			# runtime: 8 min ("7:40.54") @r14089 @vegbiendev
233 14531 aaronmk
		# wait until done
234 14536 aaronmk
		$ rm=1 exports/geoscrub_input.csv.run
235
			# runtime: 25 s ("0m24.936s") @r14089 @vegbiendev
236 14447 aaronmk
		$ rm=1 inputs/.geoscrub/geoscrub_output/geoscrub.csv.run &
237
			# runtime: 2.5 h
238
		# wait until done
239
		$ rm=1 inputs/.geoscrub/run &
240 14536 aaronmk
			# runtime: 15 min ("16m34.052s") @r14089 @vegbiendev
241 14447 aaronmk
		# wait until done
242
		# re-create public-schema views that were cascadingly deleted
243
		# press Ctrl+D
244
		# remake the analytical DB (below)
245 9497 aaronmk
	To remake analytical DB:
246 9996 aaronmk
		To use an import other than public: export version=<version>
247 11089 aaronmk
		bin/make_analytical_db & # runtime: 13 h ("12:43:57elapsed")
248 8458 aaronmk
		To view progress:
249 10600 aaronmk
			tail -150 inputs/analytical_db/logs/make_analytical_db.log.sql
250 8458 aaronmk
	To back up DB (staging tables and last import):
251 10578 aaronmk
		To use an import *other than public*: export version=<version>
252 10743 aaronmk
		make backups/TNRS.backup-remake &
253 10577 aaronmk
		dump_opts=--exclude-schema=public make backups/vegbien.$version.backup/test &
254 10578 aaronmk
			If after renaming to public, instead set dump_opts='' and replace
255
			$version with the appropriate revision
256 10744 aaronmk
		make backups/upload live=1
257 3381 aaronmk
258 1773 aaronmk
Datasource setup:
259 11516 aaronmk
	On local machine:
260 11090 aaronmk
	Example steps for a datasource: wiki.vegpath.org/Import_process_for_Madidi
261 8469 aaronmk
	umask ug=rwx,o= # prevent files from becoming web-accessible
262 8458 aaronmk
	Add a new datasource: make inputs/<datasrc>/add
263
		<datasrc> may not contain spaces, and should be abbreviated.
264
		If the datasource is a herbarium, <datasrc> should be the herbarium code
265
			as defined by the Index Herbariorum <http://sweetgum.nybg.org/ih/>
266 11018 aaronmk
	For a new-style datasource (one containing a ./run runscript):
267 11019 aaronmk
		"cp" -f inputs/.NCBI/{Makefile,run,table.run} inputs/<datasrc>/
268 8458 aaronmk
	For MySQL inputs (exports and live DB connections):
269
		For .sql exports:
270
			Place the original .sql file in _src/ (*not* in _MySQL/)
271
			Follow the steps starting with Install the staging tables below.
272
				This is for an initial sync to get the file onto vegbiendev.
273 13284 aaronmk
			ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
274 8458 aaronmk
				Create a database for the MySQL export in phpMyAdmin
275 9494 aaronmk
				Give the bien user all database-specific privileges *except*
276
					UPDATE, DELETE, ALTER, DROP. This prevents bugs in the
277
					import scripts from accidentally deleting data.
278 8458 aaronmk
				bin/mysql_bien database <inputs/<datasrc>/_src/export.sql &
279
		mkdir inputs/<datasrc>/_MySQL/
280
		cp -p lib/MySQL.{data,schema}.sql.make inputs/<datasrc>/_MySQL/
281
		Edit _MySQL/*.make for the DB connection
282
			For a .sql export, use server=vegbiendev and --user=bien
283
		Skip the Add input data for each table section
284
	For MS Access databases:
285
		Place the .mdb or .accdb file in _src/
286 14661 aaronmk
		Download and install Bullzip's MS Access to PostgreSQL from
287
			http://bullzip.com/download.php > Access To PostgreSQL > Download
288 8458 aaronmk
		Use Access To PostgreSQL to export the database:
289
			Export just the tables/indexes to inputs/<datasrc>/<file>.schema.sql
290 14662 aaronmk
				using the settings in the associated .ini file where available
291
			Export just the data to inputs/<datasrc>/<file>.data.sql using the
292
				settings in the associated .ini file where available
293 8458 aaronmk
		In <file>.schema.sql, make the following changes:
294
			Replace text "BOOLEAN" with "/*BOOLEAN*/INTEGER"
295
			Replace text "DOUBLE PRECISION NULL" with "DOUBLE PRECISION"
296
		Skip the Add input data for each table section
297
	Add input data for each table present in the datasource:
298
		For .sql exports, you must use the name of the table in the DB export
299
		For CSV files, you can use any name. It's recommended to use a table
300
			name from <https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/VegCSV#Suggested-table-names>
301
		Note that if this table will be joined together with another table, its
302
			name must end in ".src"
303
		make inputs/<datasrc>/<table>/add
304
			Important: DO NOT just create an empty directory named <table>!
305
				This command also creates necessary subdirs, such as logs/.
306
		If the table is in a .sql export: make inputs/<datasrc>/<table>/install
307
			Otherwise, place the CSV(s) for the table in
308
			inputs/<datasrc>/<table>/ OR place a query joining other tables
309
			together in inputs/<datasrc>/<table>/create.sql
310
		Important: When exporting relational databases to CSVs, you MUST ensure
311
			that embedded quotes are escaped by doubling them, *not* by
312
			preceding them with a "\" as is the default in phpMyAdmin
313
		If there are multiple part files for a table, and the header is repeated
314
			in each part, make sure each header is EXACTLY the same.
315 8466 aaronmk
			(If the headers are not the same, the CSV concatenation script
316
			assumes the part files don't have individual headers and treats the
317
			subsequent headers as data rows.)
318 8458 aaronmk
		Add <table> to inputs/<datasrc>/import_order.txt before other tables
319
			that depend on it
320 11018 aaronmk
		For a new-style datasource:
321
			"cp" -f inputs/.NCBI/nodes/run inputs/<datasrc>/<table>/
322
			inputs/<datasrc>/<table>/run
323 8458 aaronmk
	Install the staging tables:
324
		make inputs/<datasrc>/reinstall quiet=1 &
325
		For a MySQL .sql export:
326
			At prompt "[you]@vegbiendev's password:", enter your password
327
			At prompt "Enter password:", enter the value in config/bien_password
328
		To view progress: tail -f inputs/<datasrc>/<table>/logs/install.log.sql
329
		View the logs: tail -n +1 inputs/<datasrc>/*/logs/install.log.sql
330
			tail provides a header line with the filename
331
			+1 starts at the first line, to show the whole file
332
		For every file with an error 'column "..." specified more than once':
333
			Add a header override file "+header.<ext>" in <table>/:
334
				Note: The leading "+" should sort it before the flat files.
335
					"_" unfortunately sorts *after* capital letters in ASCII.
336
				Create a text file containing the header line of the flat files
337
				Add an ! at the beginning of the line
338
					This signals cat_csv that this is a header override.
339
				For empty names, use their 0-based column # (by convention)
340
				For duplicate names, add a distinguishing suffix
341
				For long names that collided, rename them to <= 63 chars long
342
				Do NOT make readability changes in this step; that is what the
343
					map spreadsheets (below) are for.
344
				Save
345
		If you made any changes, re-run the install command above
346
	Auto-create the map spreadsheets: make inputs/<datasrc>/
347
	Map each table's columns:
348
		In each <table>/ subdir, for each "via map" map.csv:
349
			Open the map in a spreadsheet editor
350
			Open the "core map" /mappings/Veg+-VegBIEN.csv
351
			In each row of the via map, set the right column to a value from the
352
				left column of the core map
353
			Save
354
		Regenerate the derived maps: make inputs/<datasrc>/
355
	Accept the test cases:
356 11018 aaronmk
		For a new-style datasource:
357
			inputs/<datasrc>/run
358
			svn di inputs/<datasrc>/*/test.xml.ref
359
			If you get errors, follow the steps for old-style datasources below
360
		For an old-style datasource:
361
			make inputs/<datasrc>/test
362 8458 aaronmk
			When prompted to "Accept new test output", enter y and press ENTER
363
			If you instead get errors, do one of the following for each one:
364
			-	If the error was due to a bug, fix it
365
			-	Add a SQL function that filters or transforms the invalid data
366
			-	Make an empty mapping for the columns that produced the error.
367
				Put something in the Comments column of the map spreadsheet to
368
				prevent the automatic mapper from auto-removing the mapping.
369
			When accepting tests, it's helpful to use WinMerge
370
				(see WinMerge setup below for configuration)
371
		make inputs/<datasrc>/test by_col=1
372
			If you get errors this time, this always indicates a bug, usually in
373
				the VegBIEN unique constraints or column-based import itself
374
	Add newly-created files: make inputs/<datasrc>/add
375
	Commit: svn ci -m "Added inputs/<datasrc>/" inputs/<datasrc>/
376
	Update vegbiendev:
377 12396 aaronmk
		ssh aaronmk@jupiter.nceas.ucsb.edu
378 12998 aaronmk
			up
379 8458 aaronmk
		On local machine:
380
			./fix_perms
381
			make inputs/upload
382 10025 aaronmk
			make inputs/upload live=1
383 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
384 12998 aaronmk
			up
385 8458 aaronmk
			make inputs/download
386 10025 aaronmk
			make inputs/download live=1
387 8458 aaronmk
			Follow the steps under Install the staging tables above
388 1773 aaronmk
389 10884 aaronmk
Maintenance:
390
	on a live machine, you should put the following in your .profile:
391
--
392
# make svn files web-accessible. this does not affect unversioned files, because
393
# these get the right permissions on the local machine instead.
394
umask ug=rwx,o=rx
395
396
unset TMOUT # TMOUT causes screen to exit even with background processes
397
--
398
	if http://vegbiendev.nceas.ucsb.edu/phppgadmin/ goes down:
399 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
400 12548 aaronmk
			make phppgadmin-Linux
401 13027 aaronmk
	regularly, re-run full-database import so that bugs in it don't pile up.
402
		it needs to be kept in working order so that it works when it's needed.
403 13466 aaronmk
	to back up the vegbiendev databases:
404
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
405
		back up MySQL: # usually few changes, so do this first
406 14554 aaronmk
			backups/mysql_snapshot
407 13466 aaronmk
			l=1        overwrite=1 inplace=1 local_dir=/ remote_url="$USER@jupiter:/data/dev/aaronmk/Documents/BIEN/" subpath=/var/lib/mysql.bak/ sudo -E env PATH="$PATH" bin/sync_upload
408
			on local machine:
409
			l=1 swap=1 overwrite=1 inplace=1 local_dir=~ sync_remote_subdir=                          subpath=~/Documents/BIEN/var/lib/mysql.bak/                          bin/sync_upload
410
		back up Postgres:
411 14554 aaronmk
			backups/pg_snapshot
412 10884 aaronmk
	to synchronize vegbiendev, jupiter, and your local machine:
413 12226 aaronmk
		**WARNING**: pay careful attention to all files that will be deleted or
414 10884 aaronmk
			overwritten!
415
		install put if needed:
416
			download https://uutils.googlecode.com/svn/trunk/bin/put to ~/bin/ and `chmod +x` it
417
		when changes are made on vegbiendev:
418 12951 aaronmk
			avoid extraneous diffs when rsyncing:
419 14670 aaronmk
				on local machine:
420
					up; ./fix_perms
421
				ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
422
					up; ./fix_perms
423
				ssh aaronmk@jupiter.nceas.ucsb.edu
424
					up; ./fix_perms
425 13284 aaronmk
			ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
426 12396 aaronmk
				upload:
427 11259 aaronmk
				overwrite=1 bin/sync_upload --size-only
428 13337 aaronmk
					then review diff, and rerun with `l=1` prepended
429 12396 aaronmk
			on your machine:
430
				download:
431 13942 aaronmk
				overwrite=1 swap=1 src=. dest='aaronmk@jupiter.nceas.ucsb.edu:~/bien' put --exclude=.svn web/BIEN3/TWiki
432 13337 aaronmk
					then review diff, and rerun with `l=1` prepended
433 12957 aaronmk
				swap=1 bin/sync_upload backups/TNRS.backup
434 13337 aaronmk
					then review diff, and rerun with `l=1` prepended
435 11259 aaronmk
				overwrite=1 swap=1 bin/sync_upload --size-only
436 13337 aaronmk
					then review diff, and rerun with `l=1` prepended
437 10884 aaronmk
				overwrite=1 sync_remote_url=~/Dropbox/svn/ bin/sync_upload --existing --size-only # just update mtimes/perms
438 13337 aaronmk
					then review diff, and rerun with `l=1` prepended
439 12959 aaronmk
	to back up e-mails:
440
		on local machine:
441
		/Applications/gmvault-v1.8.1-beta/bin/gmvault sync --multiple-db-owner --type quick aaronmk.nceas@gmail.com
442
		open Thunderbird
443
		click the All Mail folder for each account and wait for it to download the e-mails in it
444
	to back up the version history:
445 13333 aaronmk
		# back up first on the local machine, because often only the svnsync
446
			command gets run, and that way it will get backed up immediately to
447
			Dropbox (and hourly to Time Machine), while vegbiendev only gets
448
			backed up daily to tape
449
		on local machine:
450 13331 aaronmk
		svnsync sync file://"$HOME"/Dropbox/docs/BIEN/svn_repo/ # initial runtime: 1.5 h ("08:21:38" - "06:45:26") @vegbiendev
451 12959 aaronmk
		(cd ~/Dropbox/docs/BIEN/git/; git svn fetch)
452 14565 aaronmk
		# use absolute path for vegbiendev commands because the Ubuntu 14.04
453
			version of rsync doesn't expand ~ properly
454 13332 aaronmk
		overwrite=1        src=~ dest='aaronmk@jupiter.nceas.ucsb.edu:/data/dev/aaronmk/' put Dropbox/docs/BIEN/svn_repo/ # runtime: 1 min ("1:05.08")
455 13337 aaronmk
			then review diff, and rerun with `l=1` prepended
456 13332 aaronmk
		overwrite=1        src=~ dest='aaronmk@jupiter.nceas.ucsb.edu:/data/dev/aaronmk/' put Dropbox/docs/BIEN/git/
457 13337 aaronmk
			then review diff, and rerun with `l=1` prepended
458 14553 aaronmk
	to back up vegbiendev:
459 14568 aaronmk
		do steps under Maintenance > "to synchronize vegbiendev, jupiter, and
460
			your local machine"
461 14553 aaronmk
		on local machine:
462 14574 aaronmk
			l=1 overwrite=1 inplace=1 src=root@vegbiendev.nceas.ucsb.edu:/ dest=~/Documents/BIEN/vegbiendev/ sudo -E put --exclude=/var/lib/mysql.bak --exclude=/var/lib/postgresql.bak --exclude='/var/lib/postgresql/9.3/main/*/' --exclude=/home/aaronmk/bien
463 14601 aaronmk
			# enable --link-dest to work:
464
				chmod -R o+r ~/bien/.svn/; find ~/bien/.svn -type d -exec chmod o+rx {} \; # match perms
465
				l=1 overwrite=1 del= src='aaronmk@vegbiendev.nceas.ucsb.edu:~/bien/' dest=~/bien/ put --existing --size-only .svn/pristine/ # match times and perms
466
			l=1 overwrite=1 inplace=1 src=aaronmk@vegbiendev.nceas.ucsb.edu:/ dest=~/Documents/BIEN/vegbiendev/ sudo -E put --link-dest="$HOME"/Documents/BIEN/svn/ --no-owner --no-group home/aaronmk/bien/
467
				# --no-owner --no-group: needed to allow --link-dest to work
468
				# --link-dest: relative to dest, not currdir, so need abs path
469 14399 aaronmk
	to back up the local machine's settings:
470
		do step when changes are made on vegbiendev > on your machine, download
471
		ssh aaronmk@jupiter.nceas.ucsb.edu
472
			(cd ~/Dropbox/svn/; up)
473
		on your machine:
474 14549 aaronmk
			sudo find / -name .DS_Store -print -delete
475 14399 aaronmk
			rm ~/'Library/Thunderbird/Profiles/9oo8rcyn.default/ImapMail/imap.googlemail.com/[Gmail].sbd/Spam'
476
				# remove the downloaded Spam folder, because spam e-mails often contain viruses that would trigger clamscan
477 14548 aaronmk
			overwrite=1           sync_local_dir=~/Dropbox/svn/ sync_remote_subdir=Dropbox/svn/ bin/sync_upload --size-only # just update mtimes
478 14399 aaronmk
				then review diff, and rerun with `l=1` prepended
479 14607 aaronmk
			overwrite=1 inplace=1 sync_local_dir=~/             sync_remote_subdir=             bin/sync_upload ~/"VirtualBox VMs/**" # need inplace=1 because they are very large files
480 14399 aaronmk
				then review diff, and rerun with `l=1` prepended
481 14690 aaronmk
			overwrite=1           sync_local_dir=~/             sync_remote_subdir=             bin/sync_upload --exclude="/Library/Saved Application State/" --exclude="/.Trash/" --exclude="/bin/" --exclude="/bin/pg_ctl" --exclude="/bin/unzip" --exclude="/Dropbox/home/" --exclude="/.profile" --exclude="/.shrc" --exclude="/.bashrc" --exclude="/software/**/.svn/"
482 14399 aaronmk
				then review diff, and rerun with `l=1` prepended
483
			stop Dropbox: system tray > Dropbox icon > gear icon > Quit Dropbox
484
				this prevents Dropbox from trying to capture filesystem
485
				events while syncing
486 14690 aaronmk
			overwrite=1           sync_local_dir=~/             sync_remote_url=~/Dropbox/home/ bin/sync_upload --exclude="/Library/Saved Application State/" --exclude="/.Trash/" --exclude="/.dropbox/" --exclude="/Documents/BIEN/" --exclude="/Dropbox/" --exclude="/software/" --exclude="/VirtualBox VMs/**.sav" --exclude="/VirtualBox VMs/**.vdi" --exclude="/VirtualBox VMs/**.vmdk"
487 14399 aaronmk
				then review diff, and rerun with `l=1` prepended
488
			start Dropbox: /Applications > double-click Dropbox.app
489 10884 aaronmk
	to backup files not in Time Machine:
490 14667 aaronmk
		**IMPORTANT**: need to use 2 TB external hard drive instead of Time
491
			Machine drive because Time Machine drive does not have
492
			~/Documents/BIEN/ in a location where it can be hardlinked against
493 11516 aaronmk
		On local machine:
494 14656 aaronmk
		on first run, create parent dirs:
495 14667 aaronmk
			sudo mkdir -p '/Volumes/BIEN3.**SAVE**/Users/aaronmk/Documents/BIEN/'
496
			sudo mkdir -p '/Volumes/BIEN3.**SAVE**/usr/local/var/postgres/'
497
			l=1 src=/ dest='/Volumes/BIEN3.**SAVE**/' sudo -E put --existing
498
		l=1 overwrite=1 src=/ dest='/Volumes/BIEN3.**SAVE**/' sudo -E put --include='/vegbiendev**' --exclude='**' Users/aaronmk/Documents/BIEN/
499 14660 aaronmk
			# this cannot be backed up by Time Machine because it dereferences hard links:
500
			#  `sudo find /Volumes/Time\ Machine\ Backups/Backups.backupdb/ ! -type d -links +1`
501
			#  returns no files when there is a single timestamped backup, but
502
			#  `sudo find / ! -type d -links +1` does
503 14667 aaronmk
		l=1 overwrite=1 src=/ dest='/Volumes/BIEN3.**SAVE**/' sudo -E put usr/local/var/postgres/
504 14655 aaronmk
			# this cannot be backed up by Time Machine because it prevents the backup process from ending
505 13797 aaronmk
		launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist # stop the PostgreSQL server
506 14667 aaronmk
		l=1 overwrite=1 src=/ dest='/Volumes/BIEN3.**SAVE**/' sudo -E put usr/local/var/postgres/
507 13797 aaronmk
		launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist # start the PostgreSQL server
508 14400 aaronmk
	to back up the local machine's hard drive:
509
		turn on and connect the 2 TB external hard drive
510 14608 aaronmk
		screen
511 14623 aaronmk
		# --exclude='/\**': exclude *-files indicating the (differing) retention
512
		#  statuses of the partitions involved
513 14627 aaronmk
		l=1 overwrite=1 src=/ dest='/Volumes/BIEN3.**SAVE**/' sudo -E put --exclude='/\**' --exclude=/.fseventsd/ --exclude=/private/var/vm/ --exclude=/usr/local/var/postgres/ --exclude=/Users/aaronmk/.dropbox/
514 14573 aaronmk
			# no --extended-attributes: rsync has to visit every file for this
515 14562 aaronmk
			# runtime: 10 min (~600); initial runtime: 4-13 h ("2422.84"+"12379.91" .. "45813.19"+"747.96")
516 14580 aaronmk
		# repeat until only minimal changes
517 14627 aaronmk
		l=1 overwrite=1 src=/ dest='/Volumes/BIEN3.**SAVE**/' sudo -E put --exclude='/\**' --exclude=/.fseventsd/ --exclude=/private/var/vm/
518 14550 aaronmk
		stop Dropbox: system tray > Dropbox icon > gear icon > Quit Dropbox
519
			otherwise, the backup of ~/.dropbox will be corrupted
520 14551 aaronmk
		launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist # stop the PostgreSQL server
521 14627 aaronmk
		l=1 overwrite=1 src=/ dest='/Volumes/BIEN3.**SAVE**/' sudo -E put --exclude='/\**' --exclude=/.fseventsd/ --exclude=/private/var/vm/
522 14551 aaronmk
		launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist # start the PostgreSQL server
523 14550 aaronmk
		start Dropbox: /Applications > double-click Dropbox.app
524 14401 aaronmk
	to restore from Time Machine:
525
		# restart holding Alt
526
		# select Time Machine Backups
527
		# restore the last Time Machine backup to Macintosh HD
528
		# restart holding Alt
529
		# select Macintosh HD
530
		$ screen
531 14607 aaronmk
		$ l=1 swap=1 src=/ dest=/Volumes/Time\ Machine\ Backups/ sudo -E put usr/local/var/postgres/ # runtime: 1 h ("4020.61")
532 14401 aaronmk
		$ make postgres_restart
533 10884 aaronmk
	VegCore data dictionary:
534
		Regularly, or whenever the VegCore data dictionary page
535
			(https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/VegCore)
536
			is changed, regenerate mappings/VegCore.csv:
537 11516 aaronmk
			On local machine:
538 10884 aaronmk
			make mappings/VegCore.htm-remake; make mappings/
539 12716 aaronmk
			apply new data dict mappings to datasource mappings/staging tables:
540 12883 aaronmk
				inputs/run postprocess # runtime: see inputs/run
541 12887 aaronmk
				time yes|make inputs/{NVS,SALVIAS,TEAM}/test # old-style import; runtime: 1 min ("0m59.692s") @starscream
542 10884 aaronmk
			svn di mappings/VegCore.tables.redmine
543
			If there are changes, update the data dictionary's Tables section
544
			When moving terms, check that no terms were lost: svn di
545
			svn ci -m 'mappings/VegCore.htm: regenerated from wiki'
546 13284 aaronmk
			ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
547 12717 aaronmk
				perform the steps under "apply new data dict mappings to
548
					datasource mappings/staging tables" above
549 10884 aaronmk
	Important: Whenever you install a system update that affects PostgreSQL or
550
		any of its dependencies, such as libc, you should restart the PostgreSQL
551
		server. Otherwise, you may get strange errors like "the database system
552
		is in recovery mode" which go away upon reimport, or you may not be able
553
		to access the database as the postgres superuser. This applies to both
554
		Linux and Mac OS X.
555
556
Backups:
557
	Archived imports:
558 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
559 10884 aaronmk
		Back up: make backups/<version>.backup &
560
			Note: To back up the last import, you must archive it first:
561
				make schemas/rotate
562
		Test: make -s backups/<version>.backup/test &
563
		Restore: make backups/<version>.backup/restore &
564
		Remove: make backups/<version>.backup/remove
565
		Download: make backups/<version>.backup/download
566
	TNRS cache:
567 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
568 10884 aaronmk
		Back up: make backups/TNRS.backup-remake &
569
			runtime: 3 min ("real 2m48.859s")
570
		Restore:
571
			yes|make inputs/.TNRS/uninstall
572
			make backups/TNRS.backup/restore &
573
				runtime: 5.5 min ("real 5m35.829s")
574
			yes|make schemas/public/reinstall
575
				Must come after TNRS restore to recreate tnrs_input_name view
576
	Full DB:
577 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
578 10884 aaronmk
		Back up: make backups/vegbien.<version>.backup &
579
		Test: make -s backups/vegbien.<version>.backup/test &
580
		Restore: make backups/vegbien.<version>.backup/restore &
581
		Download: make backups/vegbien.<version>.backup/download
582
	Import logs:
583 11516 aaronmk
		On local machine:
584 10884 aaronmk
		Download: make inputs/download-logs live=1
585
586 6484 aaronmk
Datasource refreshing:
587 8458 aaronmk
	VegBank:
588 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
589 8458 aaronmk
		make inputs/VegBank/vegbank.sql-remake
590
		make inputs/VegBank/reinstall quiet=1 &
591 6484 aaronmk
592 702 aaronmk
Schema changes:
593 11516 aaronmk
	On local machine:
594 8458 aaronmk
	When changing the analytical views, run sync_analytical_..._to_view()
595
		to update the corresponding table
596
	Remember to update the following files with any renamings:
597
		schemas/filter_ERD.csv
598
		mappings/VegCore-VegBIEN.csv
599
		mappings/verify.*.sql
600
	Regenerate schema from installed DB: make schemas/remake
601
	Reinstall DB from schema: make schemas/public/reinstall schemas/reinstall
602 12226 aaronmk
		**WARNING**: This will delete the public schema of your VegBIEN DB!
603 12227 aaronmk
	If needed, reinstall staging tables:
604 8837 aaronmk
		On local machine:
605 8840 aaronmk
			sudo -E -u postgres psql <<<'ALTER DATABASE vegbien RENAME TO vegbien_prev'
606 8845 aaronmk
			make db
607 8837 aaronmk
			. bin/reinstall_all
608
			Fix any bugs and retry until no errors
609 8846 aaronmk
			make schemas/public/install
610
				This must be run *after* the datasources are installed, because
611
				views in public depend on some of the datasources
612 8842 aaronmk
			sudo -E -u postgres psql <<<'DROP DATABASE vegbien_prev'
613 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
614 12396 aaronmk
			repeat the above steps
615 12226 aaronmk
			**WARNING**: Do not run this until reinstall_all runs successfully
616
			on the local machine, or the live DB may be unrestorable!
617 12927 aaronmk
	update mappings and staging table column names:
618 12881 aaronmk
		on local machine:
619 12883 aaronmk
			inputs/run postprocess # runtime: see inputs/run
620 12887 aaronmk
			time yes|make inputs/{NVS,SALVIAS,TEAM}/test # old-style import; runtime: 1 min ("0m59.692s") @starscream
621 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
622 12928 aaronmk
			manually apply schema changes to the live public schema
623 12929 aaronmk
			do steps under "on local machine" above
624 8458 aaronmk
	Sync ERD with vegbien.sql schema:
625
		Run make schemas/vegbien.my.sql
626
		Open schemas/vegbien.ERD.mwb in MySQLWorkbench
627
		Go to File > Export > Synchronize With SQL CREATE Script...
628
		For Input File, select schemas/vegbien.my.sql
629
		Click Continue
630
		In the changes list, select each table with an arrow next to it
631
		Click Update Model
632
		Click Continue
633
		Note: The generated SQL script will be empty because we are syncing in
634
			the opposite direction
635
		Click Execute
636
		Reposition any lines that have been reset
637
		Add any new tables by dragging them from the Catalog in the left sidebar
638
			to the diagram
639
		Remove any deleted tables by right-clicking the table's diagram element,
640
			selecting Delete '<table name>', and clicking Delete
641
		Save
642
		If desired, update the graphical ERD exports (see below)
643
	Update graphical ERD exports:
644
		Go to File > Export > Export as PNG...
645
		Select schemas/vegbien.ERD.png and click Save
646
		Go to File > Export > Export as SVG...
647
		Select schemas/vegbien.ERD.svg and click Save
648
		Go to File > Export > Export as Single Page PDF...
649
		Select schemas/vegbien.ERD.1_pg.pdf and click Save
650
		Go to File > Print...
651
		In the lower left corner, click PDF > Save as PDF...
652
		Set the Title and Author to ""
653
		Select schemas/vegbien.ERD.pdf and click Save
654
		Commit: svn ci -m "schemas/vegbien.ERD.mwb: Regenerated exports"
655
	Refactoring tips:
656
		To rename a table:
657
			In vegbien.sql, do the following:
658
				Replace regexp (?<=_|\b)<old>(?=_|\b) with <new>
659
					This is necessary because the table name is *everywhere*
660
				Search for <new>
661
				Manually change back any replacements inside comments
662
		To rename a column:
663
			Rename the column: ALTER TABLE <table> RENAME <old> TO <new>;
664
			Recreate any foreign key for the column, removing CONSTRAINT <name>
665
				This resets the foreign key name using the new column name
666
	Creating a poster of the ERD:
667
		Determine the poster size:
668
			Measure the line height (from the bottom of one line to the bottom
669
				of another): 16.3cm/24 lines = 0.679cm
670
			Measure the height of the ERD: 35.4cm*2 = 70.8cm
671
			Zoom in as far as possible
672
			Measure the height of a capital letter: 3.5mm
673
			Measure the line height: 8.5mm
674
			Calculate the text's fraction of the line height: 3.5mm/8.5mm = 0.41
675
			Calculate the text height: 0.679cm*0.41 = 0.28cm
676
			Calculate the text height's fraction of the ERD height:
677
				0.28cm/70.8cm = 0.0040
678
			Measure the text height on the *VegBank* ERD poster: 5.5mm = 0.55cm
679
			Calculate the VegBIEN poster height to make the text the same size:
680
				0.55cm/0.0040 = 137.5cm H; *1in/2.54cm = 54.1in H
681
			The ERD aspect ratio is 11 in W x (2*8.5in H) = 11x17 portrait
682
			Calculate the VegBIEN poster width: 54.1in H*11W/17H = 35.0in W
683
			The minimum VegBIEN poster size is 35x54in portrait
684
		Determine the cost:
685
			The FedEx Kinkos near NCEAS (1030 State St, Santa Barbara, CA 93101)
686
				charges the following for posters:
687
				base: $7.25/sq ft
688
				lamination: $3/sq ft
689
				mounting on a board: $8/sq ft
690 203 aaronmk
691 1459 aaronmk
Testing:
692 8458 aaronmk
	On a development machine, you should put the following in your .profile:
693 8469 aaronmk
		umask ug=rwx,o= # prevent files from becoming web-accessible
694 8458 aaronmk
		export log= n=2
695 11985 aaronmk
	For development machine specs, see /planning/resources/dev_machine.specs/
696 11516 aaronmk
	On local machine:
697 8458 aaronmk
	Mapping process: make test
698
		Including column-based import: make test by_col=1
699
			If the row-based and column-based imports produce different inserted
700
			row counts, this usually means that a table is underconstrained
701
			(the unique indexes don't cover all possible rows).
702
			This can occur if you didn't use COALESCE(field, null_value) around
703
			a nullable field in a unique index. See sql_gen.null_sentinels for
704
			the appropriate null value to use.
705
	Map spreadsheet generation: make remake
706
	Missing mappings: make missing_mappings
707
	Everything (for most complete coverage): make test-all
708 702 aaronmk
709 7183 aaronmk
Debugging:
710 8458 aaronmk
	"Binary chop" debugging:
711
		(This is primarily useful for regressions that occurred in a previous
712
		revision, which was committed without running all the tests)
713 12998 aaronmk
		up -r <rev>; make inputs/.TNRS/reinstall; make schemas/public/reinstall; make <failed-test>.xml
714 8470 aaronmk
	.htaccess:
715
		mod_rewrite:
716 12226 aaronmk
			**IMPORTANT**: whenever you change the DirectorySlash setting for a
717 8471 aaronmk
				directory, you *must* clear your browser's cache to ensure that
718
				a cached redirect is not used. this is because RewriteRule
719
				redirects are (by default) temporary, but DirectorySlash
720
				redirects are permanent.
721 8470 aaronmk
				for Firefox:
722
					press Cmd+Shift+Delete
723
					check only Cache
724
					press Enter or click Clear Now
725 7183 aaronmk
726 3783 aaronmk
WinMerge setup:
727 11516 aaronmk
	In a Windows VM:
728 8458 aaronmk
	Install WinMerge from <http://winmerge.org/>
729
	Open WinMerge
730
	Go to Edit > Options and click Compare in the left sidebar
731
	Enable "Moved block detection", as described at
732
		<http://manual.winmerge.org/Configuration.html#d0e5892>.
733
	Set Whitespace to Ignore change, as described at
734
		<http://manual.winmerge.org/Configuration.html#d0e5758>.
735 3783 aaronmk
736 3133 aaronmk
Documentation:
737 8458 aaronmk
	To generate a Redmine-formatted list of steps for column-based import:
738 11516 aaronmk
		On local machine:
739 8458 aaronmk
		make schemas/public/reinstall
740
		make inputs/ACAD/Specimen/logs/steps.by_col.log.sql
741
	To import and scrub just the test taxonomic names:
742 13284 aaronmk
		ssh -t vegbiendev.nceas.ucsb.edu exec sudo -u aaronmk -i
743 8458 aaronmk
		inputs/test_taxonomic_names/test_scrub
744 3133 aaronmk
745 702 aaronmk
General:
746 8458 aaronmk
	To see a program's description, read its top-of-file comment
747
	To see a program's usage, run it without arguments
748
	To remake a directory: make <dir>/remake
749
	To remake a file: make <file>-remake