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diff --git a/scripts/debdiff.1 b/scripts/debdiff.1 new file mode 100644 index 0000000..177c509 --- /dev/null +++ b/scripts/debdiff.1 @@ -0,0 +1,247 @@ +.TH DEBDIFF 1 "Debian Utilities" "DEBIAN" \" -*- nroff -*- +.SH NAME +debdiff \- compare file lists in two Debian packages +.SH SYNOPSIS +\fBdebdiff\fR [\fIoptions\fR] \fR +.br +\fBdebdiff\fR [\fIoptions\fR] ... \fIdeb1 deb2\fR +.br +\fBdebdiff\fR [\fIoptions\fR] ... \fIchanges1 changes2\fR +.br +\fBdebdiff\fR [\fIoptions\fR] ... \fB\-\-from \fIdeb1a deb1b ... +\fB\-\-to \fIdeb2a deb2b ...\fR +.br +\fBdebdiff\fR [\fIoptions\fR] ... \fIdsc1 dsc2\fR +.SH DESCRIPTION +\fBdebdiff\fR takes the names of two Debian package files (\fI.deb\fRs +or \fI.udeb\fRs) on the command line and compares their contents +(considering only the files in the main package, not the maintenance +scripts). It shows which files have been introduced and which removed +between the two package files, and is therefore useful for spotting +files which may have been inadvertently lost between revisions of the +package. It also checks the file owners and permissions, and compares +the control files of the two packages using the \fBwdiff\fR program. +If you want a deeper comparison of two Debian package files you can +use the \fBdiffoscope\fR tool. +.PP +If no arguments are given, \fBdebdiff\fR tries to compare the content +of the current source directory with the last version of the package. +.PP +\fBdebdiff\fR can also handle changes between groups of \fI.deb\fR +files in two ways. The first is to specify two \fI.changes\fR files. +In this case, the \fI.deb\fR files listed in the \fI.changes\fR file +will be compared, by taking the contents of all of the +listed \fI.deb\fR files together. (The \fI.deb\fR files listed are +assumed to be in the same directory as the \fI.changes\fR file.) The +second way is to list the \fI.deb\fR files of interest specifically +using the \fB\-\-from\fR ... \fB\-\-to\fR syntax. These both help if +a package is broken up into smaller packages and one wishes to ensure +that nothing is lost in the interim. +.PP +\fBdebdiff\fR examines the \fBdevscripts\fR configuration files as +described below. Command line options override the configuration file +settings, though. +.PP +If \fBdebdiff\fR is passed two source packages (\fI.dsc\fR files) it +will compare the contents of the source packages. If the source +packages differ only in Debian revision number (that is, +the \fI.orig.tar.gz\fR files are the same in the two \fI.dsc\fR +files), then \fBinterdiff\fR(1) will be used to compare the two patch +files if this program is available on the system, otherwise a +\fBdiff\fR will be performed between the two source trees. +.SH OPTIONS +.TP +.BR \-\-dirs ", " \-d +The default mode of operation is to ignore directory names which +appear in the file list, but they, too, will be considered if this +option is given. +.TP +.B \-\-nodirs +Ignore directory names which appear in the file list. This is the +default and it can be used to override a configuration file setting. +.TP +.BI \-\-move " FROM TO" "\fR,\fP \-m" " FROM TO" +It sometimes occurs that various files or directories are moved around +between revisions. This can be handled using this option. There are +two arguments, the first giving the location of the directory or file +in the first package, and the second in the second. Any files in the +first listing whose names begin with the first argument are treated as +having that substituted for the second argument when the file lists +are compared. Any number of \fB\-\-move\fR arguments may be given; +they are processed in the order in which they appear. This only affects +comparing binary packages, not source packages. +.TP +.BI \-\-move\-regex " FROM TO" +This is the same as \fB\-\-move\fR, except that \fIFROM\fR is treated +as a regular expression and the \fBperl\fR substitution command +\fIs/^FROM/TO/\fR is applied to the files. In particular, TO can make +use of backreferences such as $1. +.TP +.B \-\-nocontrol +\fBdebdiff\fR will usually compare the respective control files of the +packages using \fBwdiff\fR(1). This option suppresses this part of +the processing. +.TP +.B \-\-control +Compare the respective control files; this is the default, and it can +be used to override a configuration file setting. +.TP +.BI \-\-controlfiles " FILE\fR[\fP", "FILE\fR ...]\fP" +Specify which control files to compare; by default this is just +\fIcontrol\fR, but could include \fIpostinst\fR, \fIconfig\fR and so +on. Files will only be compared if they are present in both +\fI.debs\fR being compared. The special value \fIALL\fR compares all +control files present in both packages, except for md5sums. This +option can be used to override a configuration file setting. +.TP +.B \-\-wdiff\-source\-control +When processing source packages, compare control files using \fBwdiff\fR. +Equivalent to the \fB\-\-control\fR option for binary packages. +.TP +.B \-\-no\-wdiff\-source\-control +Do not compare control files in source packages using \fBwdiff\fR. This +is the default. +.TP +.BR \-\-wp ", " \-\-wl ", " \-\-wt +Pass a \fB\-p\fR, \fB\-l\fR or \fB\-t\fR option to \fBwdiff\fR +respectively. (This yields the whole \fBwdiff\fR output rather than +just the lines with any changes.) +.TP +.B \-\-show-moved +If multiple \fI.deb\fR files are specified on the command line, either +using \fI.changes\fR files or the \fB\-\-from\fR/\fB\-\-to\fR syntax, +then this option will also show which files (if any) have moved +between packages. (The package names are simply determined from the +names of the \fI.deb\fR files.) +.TP +.B \-\-noshow-moved +The default behaviour; can be used to override a configuration file +setting. +.TP +.BI \-\-renamed " FROM TO" +If \fB\-\-show-moved\fR is being used and a package has been renamed +in the process, this command instructs \fBdebdiff\fR to treat the +package in the first list called \fIFROM\fR as if it were called +\fITO\fR. Multiple uses of this option are permitted. +.TP +.BI \-\-exclude " PATTERN" +Exclude files that match \fIPATTERN\fR. Multiple uses of this option +are permitted. +.TP +.B \-\-diffstat +Include the result of \fBdiffstat\fR before the generated diff. +.TP +.B \-\-no\-diffstat +The default behaviour; can be used to override a configuration file +setting. +.TP +.B \-\-auto\-ver\-sort +When comparing source packages, do so in version order. +.TP +.B \-\-no\-auto\-ver\-sort +Compare source packages in the order they were passed on the +command-line, even if that means comparing a package with a higher +version against one with a lower version. This is the default +behaviour. +.TP +.B \-\-unpack\-tarballs +When comparing source packages, also unpack tarballs found in the top level +source directory to compare their contents along with the other files. +This is the default behaviour. +.TP +.B \-\-no\-unpack\-tarballs +Do not unpack tarballs inside source packages. +.TP +\fB\-\-no-conf\fR, \fB\-\-noconf\fR +Do not read any configuration files. This can only be used as the +first option given on the command-line. +.TP +\fB\-\-debs\-dir\fR \fIdirectory\fR +Look for the \fI.dsc\fR files in \fIdirectory\fR +instead of the parent of the source directory. This should +either be an absolute path or relative to the top of the source +directory. +.TP +.BR \-\-help ", " \-h +Show a summary of options. +.TP +.BR \-\-version ", " \-v +Show version and copyright information. +.TP +.BR \-\-quiet ", " \-q +Be quiet if no differences were found. +.TP +.BR \-\-ignore\-space ", " \-w +Ignore whitespace in diffs. +.SH "CONFIGURATION VARIABLES" +The two configuration files \fI/etc/devscripts.conf\fR and +\fI~/.devscripts\fR are sourced by a shell in that order to set +configuration variables. Command line options can be used to override +configuration file settings. Environment variable settings are +ignored for this purpose. The currently recognised variables are: +.TP +.B DEBDIFF_DIRS +If this is set to \fIyes\fR, then it is the same as the +\fB\-\-dirs\fR command line parameter being used. +.TP +.B DEBDIFF_CONTROL +If this is set to \fIno\fR, then it is the same as the +\fB\-\-nocontrol\fR command line parameter being used. The default is +\fIyes\fR. +.TP +.B DEBDIFF_CONTROLFILES +Which control files to compare, corresponding to the +\fB\-\-controlfiles\fR command line option. The default is +\fIcontrol\fR. +.TP +.B DEBDIFF_SHOW_MOVED +If this is set to \fIyes\fR, then it is the same as the +\fB\-\-show\-moved\fR command line parameter being used. +.TP +.B DEBDIFF_WDIFF_OPT +This option will be passed to \fBwdiff\fR; it should be one of +\fB\-p\fR, \fB\-l\fR or \fB\-t\fR. +.TP +.B DEBDIFF_SHOW_DIFFSTAT +If this is set to \fIyes\fR, then it is the same as the +\fB\-\-diffstat\fR command line parameter being used. +.TP +.B DEBDIFF_WDIFF_SOURCE_CONTROL +If this is set to \fIyes\fR, then it is the same as the +\fB\-\-wdiff\-source\-control\fR command line parameter being used. +.TP +.B DEBDIFF_AUTO_VER_SORT +If this is set to \fIyes\fR, then it is the same as the +\fB\-\-auto\-ver\-sort\fR command line parameter being used. +.TP +.B DEBDIFF_UNPACK_TARBALLS +If this is set to \fIno\fR, then it is the same as the +\fB\-\-no\-unpack\-tarballs\fR command line parameter being used. +.TP +.B DEBRELEASE_DEBS_DIR +This specifies the directory in which to look for the \fI.dsc\fR +and files, and is either an absolute path or relative to +the top of the source tree. This corresponds to the +\fB\-\-debs\-dir\fR command line option. This directive could be +used, for example, if you always use \fBpbuilder\fR or +\fBsvn-buildpackage\fR to build your packages. Note that it also +affects \fBdebrelease\fR(1) in the same way, hence the strange name of +the option. +.SH "EXIT VALUES" +Normally the exit value will be 0 if no differences are reported and 1 +if any are reported. If there is some fatal error, the exit code will +be 255. +.SH "SEE ALSO" +.BR debdiff-apply (1), +.BR diffstat (1), +.BR dpkg-deb (1), +.BR interdiff (1), +.BR wdiff (1), +.BR devscripts.conf (5), +.BR diffoscope (1) +.SH AUTHOR +\fBdebdiff\fR was originally written as a shell script by Yann Dirson +<dirson@debian.org> and rewritten in Perl with many more features by +Julian Gilbey <jdg@debian.org>. The software may be freely +redistributed under the terms and conditions of the GNU General Public +License, version 2. |