NAME

       dh_installdeb - install files into the DEBIAN directory

SYNOPSIS

       dh_installdeb [debhelper options]

DESCRIPTION

       dh_installdeb is a debhelper program that is responsible for installing files into the
       DEBIAN directories in package build directories with the correct permissions.

FILES

       package.postinst
       package.preinst
       package.postrm
       package.prerm
           These maintainer scripts are installed into the DEBIAN directory.

           dh_installdeb will perform substitution of known tokens of the pattern #TOKEN#.  In
           generally, scripts will want to include the #DEBHELPER# to benefit from the shell
           scripts generated by debhelper commands (including those from dh_installdeb when it
           processes package.maintscript files).

           The #DEBHELPER# token should be placed on its own line as it is often replaced by a
           multi-line shell script.

       package.triggers
       package.shlibs
           These control files are installed into the DEBIAN directory.

           Note that package.shlibs is only installed in compat level 9 and earlier.  In compat
           10, please use dh_makeshlibs(1).

       package.conffiles
           This file will be installed into the DEBIAN directory. The provided file will be
           enriched by debhelper to include all the conffiles auto-detected by debhelper (the
           maintainer should not list there as debhelper assumes it should handle that part).

           This file is primarily useful for using "special" entries such as the remove-on-
           upgrade feature from dpkg.

       package.maintscript
           Lines in this file correspond to dpkg-maintscript-helper(1) commands and parameters.
           However, the "maint-script-parameters" should not be included as debhelper will add
           those automatically.

           Example:

               # Correct
               rm_conffile /etc/obsolete.conf 0.2~ foo
               # INCORRECT
               rm_conffile /etc/obsolete.conf 0.2~ foo -- "$@"

           In compat 10 or later, any shell metacharacters will be escaped, so arbitrary shell
           code cannot be inserted here.  For example, a line such as "mv_conffile
           /etc/oldconffile /etc/newconffile" will insert maintainer script snippets into all
           maintainer scripts sufficient to move that conffile.

           It was also the intention to escape shell metacharacters in previous compat levels.
           However, it did not work properly and as such it was possible to embed arbitrary shell
           code in earlier compat levels.

           The dh_installdeb tool will do some basic validation of some of the commands listed in
           this file to catch common mistakes.  The validation is enabled as a warning since
           compat 10 and as a hard error in compat 12.

           Where possible, dh_installdeb may choose to rewrite some or all of the entries into
           equivalent features supported in dpkg without relying on maintainer scripts at its
           sole discretion (examples include rewriting rm_conffile into dpkg's remove-on-
           upgrade).  The minimum requirement for activating this feature is that debhelper runs
           in compat 10 or later.

           Supports substitution variables in compat 13 and later as documented in debhelper(7).

OPTIONS

       -DTOKEN=VALUE, --define TOKEN=VALUE
           Define tokens to be replaced inside the maintainer scripts when it is generated.
           Please note that the limitations described in "Limitations in token names" also
           applies to tokens defined on the command line.  Invalid token names will trigger an
           error.

           In the simple case, this parameter will cause #TOKEN# to be replaced by VALUE.  If
           VALUE starts with a literal @-sign, then VALUE is expected to point to a file
           containing the actual value to insert.

           An explicit declared token with this parameter will replace built-in tokens.

           Test examples to aid with the understanding:

                   cat >> debian/postinst <<EOF
                   #SIMPLE#
                   #FILEBASED#
                   EOF
                   echo -n "Complex value" > some-file
               dh_installdeb --define SIMPLE=direct --define FILEBASED=@some-file

           In this example, #SIMPLE# will expand to direct and #FILEBASED# will expand to Complex
           value.

           It is also possible to set package-specific values for a given token.  This is useful
           when dh_installdeb is acting on multiple packages that need different values for the
           same token.  This is done by prefixing the token name with pkg.package-name..

           This can be used as in the following example:

                   cat >> debian/foo.postinst <<EOF
                   # Script for #PACKAGE#
                   #TOKEN#
                   EOF
                   cat >> debian/bar.postinst <<EOF
                   # Script for #PACKAGE#
                   #TOKEN#
                   EOF
                   cat >> debian/baz.postinst <<EOF
                   # Script for #PACKAGE#
                   #TOKEN#
                   EOF
               dh_installdeb -pfoo -pbar -pbaz  --define TOKEN=default --define pkg.bar.TOKEN=unique-bar-value \
                 --define pkg.baz.TOKEN=unique-baz-value

           In this example, #TOKEN# will expand to default in debian/foo.postinst, to unique-bar-
           value in debian/bar.postinst and to unique-baz-value in debian/baz.postinst.

           Note that the #pkg.*# tokens will be visible in all scripts acted on.  E.g.  you can
           refer to #pkg.bar.TOKEN# inside debian/foo.postinst and it will be replaced by unique-
           bar-value.

SUBSTITUTION IN MAINTAINER SCRIPTS

       The dh_installdeb will automatically replace the following tokens inside a provided
       maintainer script (if not replaced via -D/--define):

       #DEBHELPER#
           This token is by default replaced with generated shell snippets debhelper commands.
           This includes the snippets generated by dh_installdeb from package.maintscript file
           (if present).

       #DEB_HOST_NAME#, #DEB_BUILD_NAME#, #DEB_TARGET_NAME#
           These tokens are replaced with the respective variable from dpkg-architecture(1).  In
           almost all cases, you will want use the #DEB_HOST_NAME variant in a script to ensure
           you get the right value when cross-building.

           On a best effort, tokens of this pattern that do not match a variable in
           dpkg-architecture(1) will be left as-is.

       #ENV.NAME#
           These tokens of this form will be replaced with value of the corresponding environment
           variable.  If the environment variable is unset, the token is replaced with the empty
           string.

           Note that there are limits on which names can be used (see "Limitations in token
           names").

       #PACKAGE#
           This token is by default replaced by the package name, which will contain the concrete
           script.

   Limitations in token names
       All tokens intended to be substituted must match the regex: #[A-Za-z0-9_.+]+#

       Tokens that do not match that regex will be silently ignored if found in the script
       template.  Invalid token names passed to -D or --define will cause dh_installdeb to reject
       the command with an error in most cases.

SEE ALSO

       debhelper(7)

       This program is a part of debhelper.

AUTHOR

       Joey Hess <joeyh@debian.org>