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The rules file is a text file that is used by the bart(1MCM) command. The rules file determines which files to validate and which file attributes of those files to ignore.
Some lines are ignored by the manifest comparison tool. Ignored lines include blank lines, lines that consist only of white space, and comments that begin with #.
The rules file supports three directives: CHECK, IGNORE, and a subtree directive, which is an absolute path name and optional pattern matching modifiers. The rules file uses the directives to create logical blocks.
[IGNORE attribute...]* [CHECK] [attribute...]* subtree1 [pattern...]* [IGNORE attribute...]* [CHECK] [attribute...]* subtree2 [pattern...]* subtree3 [pattern...]* subtree4 [pattern...]* [IGNORE attribute...]* [CHECK] [attribute...]* ...
Rule blocks are composed of statements that are created by using directives and arguments. There are three types of blocks.
The first block in the file. The block is considered ``global'' if it specifies CHECK and IGNORE statements, but no previous subtree statement. A global block pertains to all subsequent blocks.
A block that specifies CHECK and IGNORE statements as well as a subtree directive. The rules in this block pertain to files and directories found in the specified subtree.
A block that contains a null CHECK statement, no arguments. This block inherits the global CHECK statements and IGNORE statements.
The order in which CHECK and IGNORE statements appear in blocks is important. The bart command processes CHECK and IGNORE statements in the order in which they are read, with later statements overriding earlier statements.
Subtree specifications must appear one per line. Each specification must begin with an absolute path name. Optionally, each specification can be followed by pattern-matching arguments.
When a file being tracked belongs to more than one subtree directive, bart performs the following resolution steps:
Applies the CHECK and IGNORE statements set in the global block. Note that all CHECK and IGNORE statements are processed in order.
Finds the last subtree directive that matches the file.
Processes the CHECK and IGNORE statements that belong to the last matching subtree directive. These statements are processed in the order in which they are read, overriding global settings.
For a given subtree directive, all pattern matching statements are logically ANDed with the subtree. Patterns have the following syntax:
Wildcards are permitted for both the subtree and pattern matching statements.
The exclamation point (!) character represents logical NOT.
A pattern that terminates with a slash is a subtree. The absence of a slash indicates that the pattern is not a directory. The subtree itself does not require an end slash.
For example, the following subtree example includes the contents of /home/nickiso/src except for object files, core files, and all of the SCCS subtrees. Note that directory names that terminate with .o and directories named core are not excluded because the patterns specified do not terminate with /.
/home/nickiso/src !*.o !core !SCCS/ CHECK all
/home/nickiso/src !*.o !core /home/nickiso/Mail /home/nickiso/docs *.sdw CHECK all IGNORE mtime lnmtime dirmtime
The files included in the previous example are as follows:
Everything under /home/nickiso/src except for *.o and core files
Everything under /home/nickiso/Mail
All files under /home/nickiso/docs that end in *.sdw
For these files, all attributes are checked except for modification times.
The bart command uses CHECK and IGNORE statements to define which attributes to track or ignore. Each attribute has an associated keyword.
The attribute keywords are as follows:
acl
all
contents
dest
devnode
dirmtime
gid
lnmtime
mode
mtime
size
type
uid
xattrs
The all keyword refers to all file attributes. See bart_manifest(4CM).
# Global rules, track everything except dirmtime. CHECK all IGNORE dirmtime # The files in /data* are expected to change, so don't bother # tracking the attributes expected to change. # Furthermore, by specifying ``IGNORE contents,'' you save # time and resources. /data* IGNORE contents mtime size /home/nickiso f* bar/ IGNORE acl # For /usr, apply the global rules. /usr CHECK # Note: Since /usr/tmp follows the /usr block, the /usr/tmp # subtree is subjected to the ``IGNORE all.'' /usr/tmp /home/nickiso *.o /home/nickiso core /home/nickiso/proto IGNORE all
The following files are cataloged based on the sample rules file:
All attributes, except for dirmtime, mtime, size, and contents, are tracked for files under the /data* subtrees.
Files under the /usr subtree, except for /usr/tmp, are cataloged by using the global rules.
If the /home/nickiso/foo.c file exists, its attributes, except for acl and dirmtime, are cataloged.
All .o and core files under /home/nickiso, as well as the /home/nickiso/proto and /usr/tmp subtrees, are ignored.
If the /home/nickiso/bar/foo.o file exists, it is ignored because it is subject to the last block.
NAME | DESCRIPTION | EXAMPLES | SEE ALSO