'\" t
.\"     Title: SCONSIGN
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
.\"      Date: 03/17/2024
.\"    Manual: SCons 4.7.0
.\"    Source: SCons 4.7.0
.\"  Language: English
.\"
.TH "SCONSIGN" "1" "03/17/2024" "SCons 4\&.7\&.0" "SCons 4\&.7\&.0"
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.SH "NAME"
sconsign \- print SCons signature file information
.SH "SYNOPSIS"
.HP \w'\fBsconsign\fR\ 'u
\fBsconsign\fR [\fIoptions\fR...] [\fIfile\fR...]
.SH "DESCRIPTION"
.PP
Displays the contents of one or more
sconsign
files, the signature/dependency database used by the
SCons
build tool\&. The database contains all Nodes that are known to the build, either by declaration in the build configuration, produced as side effects, or detected by inspection\&.
.PP
By default,
\fBsconsign\fR
dumps the entire contents of the sconsign file(s)\&. Without options, individual dependency entries are printed in the following format:
.sp
.if n \{\
.RS 4
.\}
.nf
depfile: content\-signature timestamp length
        implicit\-dependency\-1: content\-signature timestamp length
        implicit\-dependency\-2: content\-signature timestamp length
        \&.\&.\&.
        build\-signature [action\-string]
.fi
.if n \{\
.RE
.\}
.PP

\fBcontent\-signature\fR
is the hash of the file\*(Aqs contents (csig) and
\fBbuild\-signature\fR
is the hash of the command line or other build action used to build a target (bactsig)\&. If provided,
\fBaction\-string\fR
is the unexpanded string action or the function called\&.
\fBNone\fR
is printed in place of any missing timestamp,
\fBcsig\fR, or
\fBbactsig\fR
values for any entry or any of its dependencies\&. If the entry has no implicit dependencies, or no build action, the corresponding lines are omitted\&.
.PP
An indicator line is printed for each directory, as directories do not have signatures in the database and so would not otherwise be shown\&.
.PP
By default,
\fBsconsign\fR
assumes that any
\fIfile\fR
arguments that end with a
\&.dblite
suffix contains signature entries for more than one directory (that is, was specified by the
\fBSConsignFile\fR
SCons
function)\&. Any
\fIfile\fR
argument that has no suffix is assumed to be an old\-style (deprecated) sconsign file containing the signature entries for a single directory\&. If neither of those is true,
\fBsconsign\fR
attempts to guess the format\&. If that does not work, an explicit format may be specified using the
\fB\-f\fR
or
\fB\-\-format=\fR
options\&.
.PP
If there are no
\fIfile\fR
arguments, the name
\&.sconsign\&.dblite
is assumed by default\&.
.SH "OPTIONS"
.PP
Various options control what information is printed and the format:
.PP
\fB\-a\fR, \fB\-\-act\fR, \fB\-\-action\fR
.RS 4
Prints only the build action information for all entries or the specified entries\&.
.RE
.PP
\fB\-c\fR, \fB\-\-csig\fR
.RS 4
Prints only the content signature (csig) information for all entries or the specified entries\&.
.RE
.PP
\fB\-d \fR\fB\fIDIRECTORY\fR\fR, \fB\-\-dir=\fR\fB\fIDIRECTORY\fR\fR
.RS 4
When the signatures are being read from a
\&.dblite
file, or the
\fB\-f dblite\fR
or
\fB\-\-format=dblite\fR
options are used, prints information about only the signatures for entries in the specified
\fIDIRECTORY\fR\&.
.RE
.PP
\fB\-e \fR\fB\fIENTRY\fR\fR, \fB\-\-entry=\fR\fB\fIENTRY\fR\fR
.RS 4
Prints information about only the specified
\fIENTRY\fR\&. Multiple
\fB\-e\fR
options may be used, in which case information about each
\fIENTRY\fR
is printed in the order in which the options are specified on the command line\&.
.RE
.PP
\fB\-f \fR\fB\fIFORMAT\fR\fR, \fB\-\-format=\fR\fB\fIFORMAT\fR\fR
.RS 4
The file(s) to be printed are in the specified
\fIFORMAT\fR\&. Legal values are
\fBdblite\fR
(the SCons\&.dblite format used by default, as well as when the
\fBSConsignFile\fR
function is called, except when a filename argument of
\fBNone\fR
is given) and
\fBsconsign\fR
(the format used for an individual
\&.sconsign
file in each directory)\&.
.RE
.PP
\fB\-h\fR, \fB\-\-help\fR
.RS 4
Prints a help message and exits\&.
.RE
.PP
\fB\-i\fR, \fB\-\-implicit\fR
.RS 4
Prints the list of cached implicit dependencies for all entries or for the specified entries\&.
.RE
.PP
\fB\-\-raw\fR
.RS 4
Prints a pretty\-printed representation of the raw Python dictionary that holds build information about individual entries (both the entry itself and its implicit dependencies)\&. An entry\*(Aqs build action is still printed in its usual format\&.
.RE
.PP
\fB\-r\fR, \fB\-\-readable\fR
.RS 4
Prints timestamps in a human\-readable string, enclosed in single quotes\&.
.RE
.PP
\fB\-t\fR, \fB\-\-timestamp\fR
.RS 4
Prints the timestamp information for all entries or the specified entries\&.
.RE
.PP
\fB\-v\fR, \fB\-\-verbose\fR
.RS 4
Prints labels identifying each field being printed\&.
.RE
.SH "ENVIRONMENT"
.PP
\fBSCONS_LIB_DIR\fR
.RS 4
Specifies the directory that contains the SCons Python module directory (e\&.g\&.
/home/aroach/scons\-src/SCons)\&.
.RE
.SH "SEE ALSO"
.PP
The
SCons
reference (manpage) at
\m[blue]\fB\%https://scons.org/doc/production/HTML/scons-man.html\fR\m[], the SCons User Guide at
\m[blue]\fB\%https://scons.org/doc/production/HTML/scons-user.html\fR\m[], the SCons source code
\m[blue]\fBon GitHub\fR\m[]\&\s-2\u[1]\d\s+2\&.
.SH "AUTHORS"
.PP
Originally: Steven Knight
knight@baldmt\&.com
and Anthony Roach
aroach@electriceyeball\&.com\&.
.PP
Since 2010: The SCons Development Team
scons\-dev@scons\&.org\&.
.SH "NOTES"
.IP " 1." 4
on GitHub
.RS 4
\%https://github.com/SCons/scons
.RE