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.IX Title "STRIP-NONDETERMINISM 1"
.TH STRIP-NONDETERMINISM 1 2024-09-01 "perl v5.40.0" "User Contributed Perl Documentation"
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.nh
.SH NAME
strip\-nondeterminism \- strip nondeterministic information from files
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& strip\-nondeterminism [\-t filetype] filename ...
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBstrip-nondeterminism\fR is a tool to strip bits of nondeterministic
information, such as timestamps, from files.  It can be used as
a post-processing step to make a build reproducible, when the build
process itself cannot be made deterministic.
.SH OPTIONS
.IX Header "OPTIONS"
.IP "\fB\-t\fR \fIfiletype\fR, \fB\-\-type\fR \fIfiletype\fR" 4
.IX Item "-t filetype, --type filetype"
Use the normalizer for the given file type (ar, gzip, jar, zip).  If this
option is not specified, the file type is detected automatically based on
the file name extension.
.IP "\fB\-T\fR \fIseconds\fR, \fB\-\-timestamp\fR \fIseconds\fR" 4
.IX Item "-T seconds, --timestamp seconds"
Instead of stripping timestamps from files, set them to the given number
of seconds since January 1, 1970.
.IP \fB\-\-clamp\-timestamp\fR 4
.IX Item "--clamp-timestamp"
Only replace timestamps if they are later than the time specified to
\&\fB\-\-timestamp\fR.  You can use this option to ensure that only timestamps
introduced as part of the build process are replaced.  NOT YET IMPLEMENTED
FOR ALL FILE FORMATS.
.IP "\fB\-\-normalizers\fR \fISPEC\fR" 4
.IX Item "--normalizers SPEC"
Enable or disable specific normalizers separated by a comma (eg. \fB+foo,\-bar\fR.
The magic values \fB+all\fR and \fB\-all\fR will enable and disable all normalizers.
.IP "\fB\-h\fR, \fB\-\-help\fR" 4
.IX Item "-h, --help"
Display this help message.
.IP "\fB\-V\fR, \fB\-\-version\fR" 4
.IX Item "-V, --version"
Print only the version string and then quit.
.SH AUTHORS
.IX Header "AUTHORS"
Andrew Ayer
Chris Lamb
.SH COPYRIGHT
.IX Header "COPYRIGHT"
strip-nondeterminism is free software.  You can redistribute it and/or
modify it under the terms of the GNU General Public License, version 3.