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51a8a564d5
mtree files -- the 5-line header is no longer printed when mtree(8) is run with -n (as of mtree/create.c,v 1.34). Approved by: re (kensmith)
51 lines
2.2 KiB
Plaintext
51 lines
2.2 KiB
Plaintext
$FreeBSD$
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Note: If you modify these files, please keep hier(7) updated!
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These files are used to create empty file hierarchies for building the
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system into. Some notes about working with them are placed here to try
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and keep them in good working order.
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a) The files use 4 space indentation, and other than in the header
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comments, should not contain any tabs. An indentation of 4 is
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preferable to the standard indentation of 8 because the indentation
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of levels in these files can become quite deep causing the line to
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overflow 80 characters.
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This also matches with the files generated when using the
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mtree -c option, which was implemented that way for the same reason.
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b) Only directories should be listed here.
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c) The listing should be kept in filename sorted order.
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d) Sanity checking changes to these files can be done by following
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this procedure (the sed -e is ugly, but fixing mtree -c to
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not emit the trailing white space would be even uglier):
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mkdir /tmp/MTREE
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mtree -deU -f BSD.X.dist -p /tmp/MTREE
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mtree -cdin -k uname,gname,mode -p /tmp/MTREE | \
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sed -e 's/ *$//' >BSD.X.new
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diff -u BSD.X.dist BSD.X.new
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rm -r /tmp/MTREE
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Note that you will get some differences about /set lines,
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and uname= gname= on certain directory areas, mainly man page
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sections. This is caused by mtree not having a look ahead
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mechanism for making better selections for these as it
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traverses the hierarchy.
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The BSD.X.new file should NOT be commited, will be missing the
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correct header, and important keywords like ``nochange''. Simply
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use the diff for a sanity check to make sure things are in the
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correct order and correctly indented.
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e) Further sanity checking of the system builds with DESTDIR=/someplace
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are more complicated, but can often catch missing entries in these
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files. I tend to run this more complete sanity check shortly after
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the target date for a new release is announced.
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If you want details on it bug me about it via email to
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rgrimes@FreeBSD.org.
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