12-29-2018
Quote:
Originally Posted by
RudiC
Wouldn't a periodical sort -u of the final result file solve those problems in one go at minimal cost? I'd guess searching the entire file for each new IP could become resource hungry.
That depends. In principle: yes, that would suffice - IF the period between runs of
sort -u is sufficiently small to fit thread-O/Ps needs. What exactly "what he needs" is and what therefore "sufficiently small" constitutes is everybodies guess. IF (and again, who knows if this is a moot point or not) there must not be any duplicates in the final file THEN my approach (or something along similar lines) will be necessary. Also, if appending the output file happens without strict regularity the run of the
sort -u might collide with the new entries overwriting them - concurrent access can have that effect. It would need some sort of inter-process communication in this case.
But all that is conjecture. Thread-O/P will have to state his problem more clearly to select the right approach.
I hope this helps.
bakunin
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LEARN ABOUT NETBSD
wrap-and-sort
WRAP-AND-SORT(1) General Commands Manual WRAP-AND-SORT(1)
NAME
wrap-and-sort - wrap long lines and sort items in Debian packaging files
SYNOPSIS
wrap-and-sort [options]
DESCRIPTION
wrap-and-sort wraps the package lists in Debian control files. By default the lists will only split into multiple lines if the entries are
longer than 80 characters. wrap-and-sort sorts the package lists in Debian control files and all .install files. Beside that wrap-and-sort
removes trailing spaces in these files.
This script should be run in the root of a Debian package tree. It searches for control, control.in, copyright, copyright.in, install, and
*.install in the debian directory.
OPTIONS
-h, --help
Show this help message and exit.
-a, --wrap-always
Wrap all package lists in the Debian control file even if the entries are shorter than 80 characters and could fit in one line line.
-s, --short-indent
Only indent wrapped lines by one space (default is in-line with the field name).
-b, --sort-binary-packages
Sort binary package paragraphs by name.
-k, --keep-first
When sorting binary package paragraphs, leave the first one at the top. Unqualified debhelper(7) configuration files are applied to
the first package.
-n, --no-cleanup
Do not remove trailing whitespaces.
-d path, --debian-directory=path
Location of the debian directory (default: ./debian).
-f file, --file=file
Wrap and sort only the specified file. You can specify this parameter multiple times. All supported files will be processed if no
files are specified.
-v, --verbose
Print all files that are touched.
AUTHORS
wrap-and-sort and this manpage have been written by Benjamin Drung <bdrung@debian.org>.
Both are released under the ISC license.
DEBIAN
Debian Utilities WRAP-AND-SORT(1)