Bug 1916517 - add /usr/bin/firefox to the firefox-esr deb package r=g…

…landium

Debian's firefox-esr package adds its own /usr/bin/firefox and diverts
it away, so we either need to do the same or clean up the diversion in
our postinst, otherwise /usr/bin/firefox goes permanently missing when
upgrading from Debian to Mozilla's firefox-esr package.

Differential Revision: https://phabricator.services.mozilla.com/D222752

UltraBlame original commit: 20267c5d61c02127ca8b3982d3c1795111773f86

browser/installer/linux/app/debian/dirs

@@ -0,0 +1,3 @@
+usr
+/
+bin

browser/installer/linux/app/debian/firefox.sh

@@ -0,0 +1,41 @@
+#
+!
+/
+bin
+/
+sh
+FIREFOX
+=
+"
+(
+command
+-
+v
+firefox
+)
+"
+[
+-
+x
+"
+FIREFOX
+.
+real
+"
+]
+&
+&
+exec
+"
+FIREFOX
+.
+real
+"
+"
+"
+exec
+firefox
+-
+esr
+"
+"

browser/installer/linux/app/debian/postrm.in

@@ -0,0 +1,55 @@
+#
+!
+/
+bin
+/
+sh
+-
+e
+if
+[
+{
+DEB_PKG_NAME
+}
+=
+firefox
+-
+esr
+]
+;
+then
+if
+[
+"
+1
+"
+=
+"
+remove
+"
+]
+;
+then
+dpkg
+-
+divert
+-
+-
+package
+firefox
+-
+esr
+-
+-
+rename
+-
+-
+remove
+/
+usr
+/
+bin
+/
+firefox
+fi
+fi

browser/installer/linux/app/debian/preinst.in

@@ -0,0 +1,74 @@
+#
+!
+/
+bin
+/
+sh
+-
+e
+if
+[
+{
+DEB_PKG_NAME
+}
+=
+firefox
+-
+esr
+]
+;
+then
+if
+[
+"
+1
+"
+=
+"
+upgrade
+"
+]
+|
+|
+[
+"
+1
+"
+=
+"
+install
+"
+]
+;
+then
+dpkg
+-
+divert
+-
+-
+package
+firefox
+-
+esr
+-
+-
+divert
+/
+usr
+/
+bin
+/
+firefox
+.
+real
+-
+-
+rename
+/
+usr
+/
+bin
+/
+firefox
+fi
+fi

browser/installer/linux/app/debian/rules

@@ -16,3 +16,42 @@ override_dh_strip_nondeterminism
 dh_strip_nondeterminism
 -
 Xxpi
+override_dh_install
+:
+dh_install
+ifeq
+(
+(
+shell
+dpkg
+-
+parsechangelog
+-
+S
+Source
+)
+firefox
+-
+esr
+)
+install
+-
+m
+0755
+debian
+/
+firefox
+.
+sh
+debian
+/
+firefox
+-
+esr
+/
+usr
+/
+bin
+/
+firefox
+endif