4ee09b4bcc
the "PRAGMA application_id" command to set and query this identifier. Add the "magic.txt" file to show how the posix file command might use this application id. FossilOrigin-Name: 28c9e7fdee2471a3026ee05ff591194d5f398131
29 lines
1.3 KiB
Plaintext
29 lines
1.3 KiB
Plaintext
# This file contains suggested magic(5) text for the unix file(1)
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# utility for recognizing SQLite3 databases.
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#
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# When SQLite is used as an application file format, it is desirable to
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# have file(1) recognize the database file as being with the specific
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# application. You can set the application_id for a database file
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# using:
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#
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# PRAGMA application_id = INTEGER;
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#
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# INTEGER can be any signed 32-bit integer. That integer is written as
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# a 4-byte big-endian integer into offset 68 of the database header. In
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# the tests below, this integer is sometimes rendered as a string. For
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# example, instead of "belong =1598444364" we write "string =_FSL" and
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# instead of "belong =1598903374" we write "string =_MTN".
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#
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# The Monotone application used "PRAGMA user_version=1598903374;" to set
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# its identifier long before "PRAGMA application_id" became available.
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# The user_version is very similar to application_id except that it is
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# stored at offset 60 instead of offset 68. The user of
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# "PRAGMA application_id" is preferred now. The rules using offset 60
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# for Monotone are for historical compatibility only.
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#
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0 string =SQLite\ format\ 3
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>68 string =_FSL Fossil repository
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>68 belong =0
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>>60 string =_MTN Monotone source repository
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>>60 string !_MTN SQLite 3.x database
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