[PATCH v2] img/app: add dejavu_fonts pkg and fontconfig file

[Samy Lahfa <samy+spectrum@lahfa.xyz>]

Signed-off-by: Samy Lahfa <samy+spectrum@lahfa.xyz>
---
This fixes the foot terminal app-vm by adding dejavu_fonts package to the
nix store as well as adding the fontconfig file, so it knows which
default font to use.

 img/app/Makefile             |  2 ++
 img/app/default.nix          |  3 ++-
 img/app/etc/fonts/fonts.conf | 21 +++++++++++++++++++++
 3 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 img/app/etc/fonts/fonts.conf

diff --git a/img/app/Makefile b/img/app/Makefile
index 7887aa8..eeb17fa 100644
--- a/img/app/Makefile
+++ b/img/app/Makefile
@@ -30,6 +30,7 @@ $(imgdir)/appvm/blk/root.img: ../../scripts/make-gpt.sh ../../scripts/sfdisk-fie
 
 VM_FILES = \
 	etc/dbus-1/session.conf \
+	etc/fonts/fonts.conf \
 	etc/fstab \
 	etc/init \
 	etc/mdev.conf \
@@ -52,6 +53,7 @@ VM_FILES = \
 	etc/s6-linux-init/scripts/rc.shutdown \
 	etc/s6-linux-init/scripts/rc.shutdown.final \
 	etc/xdg/xdg-desktop-portal/portals.conf
+
 VM_DIRS = dev run proc sys tmp \
 	etc/s6-linux-init/run-image/service
 VM_FIFOS = etc/s6-linux-init/run-image/service/s6-linux-init-shutdownd/fifo
diff --git a/img/app/default.nix b/img/app/default.nix
index 6537fb2..5b58a5f 100644
--- a/img/app/default.nix
+++ b/img/app/default.nix
@@ -8,7 +8,7 @@ pkgsStatic.callPackage (
 { lib, stdenvNoCC, runCommand, writeClosure
 , erofs-utils, jq, s6-rc, util-linux
 , busybox, cacert, execline, kmod, linux_latest, mdevd, s6, s6-linux-init
-, xdg-desktop-portal-spectrum
+, xdg-desktop-portal-spectrum, dejavu_fonts,
 }:
 
 let
@@ -37,6 +37,7 @@ let
       s6-rc
       terminfo
       xdg-desktop-portal-spectrum
+      dejavu_fonts
 
       # Some packages can't (currently?) be built statically.
 
diff --git a/img/app/etc/fonts/fonts.conf b/img/app/etc/fonts/fonts.conf
new file mode 100644
index 0000000..0dcde54
--- /dev/null
+++ b/img/app/etc/fonts/fonts.conf
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- SPDX-License-Identifier: CC0-1.0 -->
+<!-- SPDX-FileCopyrightText: 2021 Alyssa Ross <hi@alyssa.is> -->
+<!DOCTYPE fontconfig SYSTEM "urn:fontconfig:fonts.dtd">
+<fontconfig>
+  <alias binding="same">
+    <family>monospace</family>
+    <prefer>
+      <family>DejaVu Sans Mono</family>
+    </prefer>
+  </alias>
+
+  <alias binding="same">
+    <family>sans-serif</family>
+    <prefer>
+      <family>DejaVu Sans</family>
+    </prefer>
+  </alias>
+
+  <dir>/usr/share/fonts</dir>
+</fontconfig>
-- 
2.47.2