Flatpak-builder silently ignores improper only-arch value

[bbhtt]

Checklist

• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug that matches the one I want to file, without success.

flatpak-builder version

1.4.3

Flatpak version

1.15.6

How to reproduce

Given a manifest

app-id: com.lablicate.OpenChrom
runtime: org.freedesktop.Platform
runtime-version: 23.08
sdk: org.freedesktop.Sdk
command: openchrom
finish-args:
  - --socket=x11
  - --share=ipc
  - --device=dri
  - --share=network
  - --socket=pulseaudio
  - --persist=.openchrom
  - --persist=.eclipseswtchartsettings
  - --filesystem=/tmp:rw

modules:
  - name: openchrom
    buildsystem: simple
    build-options:
      strip: false
      no-debuginfo: true
    build-commands:
      - mv openchrom ${FLATPAK_DEST}/openchrom/
      - mkdir -p ${FLATPAK_DEST}/bin
      - ln -sf ${FLATPAK_DEST}/openchrom/openchrom ${FLATPAK_DEST}/bin/
      - install -Dm644 ${FLATPAK_ID}.desktop ${FLATPAK_DEST}/share/applications/${FLATPAK_ID}.desktop
      - install -Dm644 ${FLATPAK_ID}.png ${FLATPAK_DEST}/share/icons/hicolor/256x256/apps/${FLATPAK_ID}.png
      - install -Dm644 ${FLATPAK_ID}.metainfo.xml ${FLATPAK_DEST}/share/metainfo/${FLATPAK_ID}.metainfo.xml
    sources:
      - type: archive
        only-arches:
          x86_64 #<--- Missing dash
        url: https://products.lablicate.com/openchrom/1.5.0/openchrom-lablicate_linux.x86_64_1.5.0.tar.gz
        sha256: 64a8528d889f6a05dffc499206af04e93ee170814700c416183fdf42f4d000eb
        strip-components: 0
        dest: openchrom
      - type: archive
        only-arches:
          aarch64 #<--- Missing dash
        url: https://products.lablicate.com/openchrom/1.5.0/openchrom-lablicate_linux.aarch64_1.5.0.tar.gz
        sha256: d3f6ca097398891aca88760aae510ae9ba07c3a33de038021523f1c4a482195b
        strip-components: 0
        dest: openchrom
      - type: file
        path: com.lablicate.OpenChrom.desktop
      - type: file
        path: com.lablicate.OpenChrom.png
      - type: file
        path: com.lablicate.OpenChrom.metainfo.xml

building and show-manifest ignores that the only-arches key is improper, so it is converted to

{
  "id" : "com.lablicate.OpenChrom",
  "runtime" : "org.freedesktop.Platform",
  "runtime-version" : "23.08",
  "sdk" : "org.freedesktop.Sdk",
  "command" : "openchrom",
  "modules" : [
    {
      "name" : "openchrom",
      "buildsystem" : "simple",
      "sources" : [
        {
          "dest" : "openchrom",
          "url" : "https://products.lablicate.com/openchrom/1.5.0/openchrom-lablicate_linux.x86_64_1.5.0.tar.gz",
          "sha256" : "64a8528d889f6a05dffc499206af04e93ee170814700c416183fdf42f4d000eb",
          "strip-components" : 0,
          "type" : "archive"
        },
        {
          "dest" : "openchrom",
          "url" : "https://products.lablicate.com/openchrom/1.5.0/openchrom-lablicate_linux.aarch64_1.5.0.tar.gz",
          "sha256" : "d3f6ca097398891aca88760aae510ae9ba07c3a33de038021523f1c4a482195b",
          "strip-components" : 0,
          "type" : "archive"
        },
        {
          "path" : "com.lablicate.OpenChrom.desktop",
          "type" : "file"
        },
        {
          "path" : "com.lablicate.OpenChrom.png",
          "type" : "file"
        },
        {
          "path" : "com.lablicate.OpenChrom.metainfo.xml",
          "type" : "file"
        }
      ],
      "build-options" : {
        "no-debuginfo" : true
      },
      "build-commands" : [
        "mv openchrom ${FLATPAK_DEST}/openchrom/",
        "mkdir -p ${FLATPAK_DEST}/bin",
        "ln -sf ${FLATPAK_DEST}/openchrom/openchrom ${FLATPAK_DEST}/bin/",
        "install -Dm644 ${FLATPAK_ID}.desktop ${FLATPAK_DEST}/share/applications/${FLATPAK_ID}.desktop",
        "install -Dm644 ${FLATPAK_ID}.png ${FLATPAK_DEST}/share/icons/hicolor/256x256/apps/${FLATPAK_ID}.png",
        "install -Dm644 ${FLATPAK_ID}.metainfo.xml ${FLATPAK_DEST}/share/metainfo/${FLATPAK_ID}.metainfo.xml"
      ]
    }
  ],
  "finish-args" : [
    "--socket=x11",
    "--share=ipc",
    "--device=dri",
    "--share=network",
    "--socket=pulseaudio",
    "--persist=.openchrom",
    "--persist=.eclipseswtchartsettings",
    "--filesystem=/tmp:rw"
  ]
}

which causes, the x86_64 build and aarch64 build files to get overwritten by one another.

Expected Behavior

It should error and fail.

Actual Behavior

Doesn't error

Additional Information

#0  _g_log_abort (breakpoint=<optimized out>) at ../glib/gmessages.c:556
#1  g_log_writer_default (log_level=18, fields=<optimized out>, n_fields=6, user_data=0x0) at ../glib/gmessages.c:2812
#2  0x00007f1ba6c07b54 in g_log_structured_array (n_fields=6, fields=0x7ffcba1908b0, log_level=G_LOG_LEVEL_WARNING) at ../glib/gmessages.c:1984
#3  g_log_structured_array (log_level=log_level@entry=G_LOG_LEVEL_WARNING, fields=fields@entry=0x7ffcba1908b0, n_fields=n_fields@entry=6) at ../glib/gmessages.c:1957
#4  0x00007f1ba6c07db8 in g_log_structured_standard
    (log_domain=log_domain@entry=0x7f1ba696601e "Json", log_level=log_level@entry=G_LOG_LEVEL_WARNING, file=file@entry=0x7f1ba69665aa "../json-glib/json-gobject.c", line=line@entry=0x7f1ba69665c6 "321", func=func@entry=0x7f1ba69681e0 <__func__.7.lto_priv.3> "json_gobject_new", message_format=message_format@entry=0x7f1ba6967028 "Failed to deserialize \"%s\" property of type \"%s\" for an object of type \"%s\"")
    at ../glib/gmessages.c:2041
#5  0x00007f1ba695bd11 in json_gobject_new (gtype=Python Exception <class 'gdb.error'>: value has been optimized out
, object=0x55e6727ba710) at ../json-glib/json-gobject.c:321
#6  0x00007f1ba695be08 in json_gobject_deserialize (gtype=<optimized out>, node=<optimized out>) at ../json-glib/json-gobject.c:805
#7  0x000055e6720331e8 in builder_source_from_json (node=0x55e6727d53b0) at ../src/builder-source.c:301
#8  0x000055e672023590 in builder_module_deserialize_property (serializable=<optimized out>, property_name=<optimized out>, value=0x7ffcba191050, pspec=<optimized out>, property_node=<optimized out>)
    at ../src/builder-module.c:945
#9  0x00007f1ba695bc46 in json_gobject_new (gtype=Python Exception <class 'gdb.error'>: value has been optimized out
, object=0x55e6727bbd80) at ../json-glib/json-gobject.c:296
#10 0x00007f1ba695be08 in json_gobject_deserialize (gtype=<optimized out>, node=<optimized out>) at ../json-glib/json-gobject.c:805
#11 0x000055e672018b10 in builder_manifest_deserialize_property (serializable=<optimized out>, property_name=<optimized out>, value=0x7ffcba1911b0, pspec=<optimized out>, property_node=<optimized out>)
    at ../src/builder-manifest.c:1301
#12 0x00007f1ba695bc46 in json_gobject_new (gtype=Python Exception <class 'gdb.error'>: value has been optimized out
, object=0x7f1b90000c40) at ../json-glib/json-gobject.c:296
#13 0x00007f1ba695be08 in json_gobject_deserialize (gtype=<optimized out>, node=<optimized out>) at ../json-glib/json-gobject.c:805
#14 0x000055e672037564 in builder_gobject_from_data (gtype=Python Exception <class 'gdb.error'>: value has been optimized out
, relpath=<optimized out>, contents=<optimized out>, error=0x7ffcba191390) at ../src/builder-utils.c:544
#15 0x000055e672005342 in main (argc=<optimized out>, argv=<optimized out>) at ../src/builder-manifest.c:124

[bbhtt]

The solution I thought of is that it can check that if skip-arches, only-arches hold an array, if not then it is an error. Something like this json_object_get_member(obj, "only-arches") -> if (!JSON_NODE_HOLDS_ARRAY (node)) -> error but it involves manually checking each such property.

Not sure about this entirely.