feat: Add dynamic MOTD tips and image info (#847)

Containerfile

@@ -35,7 +35,6 @@ RUN if [ ${FEDORA_MAJOR_VERSION} -ge "39" ]; then \
 
 COPY usr /usr
 COPY just /tmp/just
-COPY motd /tmp/motd
 COPY etc/yum.repos.d/ /etc/yum.repos.d/
 COPY packages.json /tmp/packages.json
 COPY build.sh /tmp/build.sh
@@ -74,7 +73,6 @@ RUN wget https://copr.fedorainfracloud.org/coprs/ublue-os/staging/repo/fedora-"$
     pip install --prefix=/usr yafti && \
     pip install --prefix=/usr topgrade && \
     rpm-ostree install ublue-update && \
-    glow -s /tmp/motd/dracula.json /tmp/motd/bluefin.md > /usr/share/ublue-os/user-motd && \
     mkdir -p /usr/etc/flatpak/remotes.d && \
     wget -q https://dl.flathub.org/repo/flathub.flatpakrepo -P /usr/etc/flatpak/remotes.d && \
     cp /tmp/ublue-update.toml /usr/etc/ublue-update/ublue-update.toml && \

usr/etc/profile.d/user-motd.sh

@@ -0,0 +1,8 @@
+if test -d "$HOME"; then
+  if test ! -e "$HOME"/.config/no-show-user-motd; then
+    if test -x "/usr/libexec/ublue-motd"; then
+        /usr/libexec/ublue-motd
+      fi
+    fi
+  fi
+fi

usr/libexec/ublue-motd

@@ -0,0 +1,9 @@
+#!/usr/bin/bash
+TIP_FILE=$(ls "/usr/share/ublue-os/motd/tips/"* | shuf -n 1)
+if [[ -f "$TIP_FILE" ]]; then
+	IMAGE_INFO="/usr/share/ublue-os/image-info.json"
+	IMAGE_NAME=$(jq -r '."image-name"' < $IMAGE_INFO)
+	IMAGE_TAG=$(jq -r '."image-tag"' < $IMAGE_INFO)
+	TIP=$(shuf -n 1 "$TIP_FILE")
+	/usr/bin/glow -s /usr/share/ublue-os/motd/design/dracula.json /usr/share/ublue-os/motd/design/bluefin.md | sed -e "s/%IMAGE_NAME%/$IMAGE_NAME/g" -e "s/%IMAGE_TAG%/$IMAGE_TAG/g" -e "s/%TIP%/$TIP/g"
+fi

motd/bluefin.md → usr/share/ublue-os/motd/design/bluefin.md

@@ -1,12 +1,13 @@
 # Welcome to Bluefin
+*Your image: `%IMAGE_NAME%:%IMAGE_TAG%`*
 
 | Command | Description |
 | ------- | ----------- |
 | `ujust bluefin-cli` | Configure the terminal |
 | `ujust toggle-user-motd` | Toggle this banner on/off | 
 | `ujust`  | List all available commands |
 
-*tip: the Project Bluefin team will use this banner to share important information and occasional tips.*
+*Tip: %TIP%*
 
 - [Documentation](http://docs.projectbluefin.io/)
 - [Discuss](https://community.projectbluefin.io/)

usr/share/ublue-os/motd/tips/10-tips

@@ -0,0 +1 @@
+The Project Bluefin team will use this banner to share important information and occasional tips.