feat: add SBOM downloads based on cut-off date

With this the SBOM downloads will be available for any release created
after 2023-10-11. Both JSON and XML download links will be available.
The Apache conventions for distributing these via dist.apache.org must
be followed, so .asc and .sha512 files must be present in addition to
the .json and .xml SBOM files.

Resolves #1096

Author: zregvart

data/release-categories.yaml

@@ -36,6 +36,12 @@ camel:
     - name: 'Sources'
       path_format: 'camel/apache-camel/{version}/apache-camel-{version}-src.zip'
       filename_format: 'apache-camel-{version}-src.zip'
+    - name: 'SBOM, CycloneDX XML'
+      path_format: 'camel/apache-camel/{version}/apache-camel-{version}-sbom.xml'
+      filename_format: 'apache-camel-{version}-sbom.xml'
+    - name: 'SBOM, CycloneDX JSON'
+      path_format: 'camel/apache-camel/{version}/apache-camel-{version}-sbom.json'
+      filename_format: 'apache-camel-{version}-sbom.json'
 camel-k:
   id: 'camel-k'
   name: 'Apache Camel-K'
@@ -72,6 +78,12 @@ camel-kamelets:
     - name: 'Sources'
       path_format: 'camel/camel-kamelets/{version}/camel-kamelets-sources-{version}.tar.gz'
       filename_format: 'camel-kamelets-sources-{version}.tar.gz'
+    - name: 'SBOM, CycloneDX XML'
+      path_format: 'camel/camel-kamelets/{version}/camel-kamelets-{version}-sbom.xml'
+      filename_format: 'camel-kamelets-{version}-sbom.xml'
+    - name: 'SBOM, CycloneDX JSON'
+      path_format: 'camel/camel-kamelets/{version}/camel-kamelets-{version}-sbom.json'
+      filename_format: 'camel-kamelets-{version}-sbom.json'
 camel-kafka-connector:
   id: 'camel-kafka-connector'
   name: 'Apache Camel Kafka Connector'
@@ -97,3 +109,9 @@ camel-quarkus:
     - name: 'Sources'
       path_format: 'camel/camel-quarkus/{version}/apache-camel-quarkus-{version}-src.zip'
       filename_format: 'apache-camel-quarkus-{version}-src.zip'
+    - name: 'SBOM, CycloneDX XML'
+      path_format: 'camel/camel-quarkus/{version}/apache-camel-quarkus-{version}-sbom.xml'
+      filename_format: 'apache-camel-quarkus-{version}-sbom.xml'
+    - name: 'SBOM, CycloneDX JSON'
+      path_format: 'camel/camel-quarkus/{version}/apache-camel-quarkus-{version}-sbom.json'
+      filename_format: 'apache-camel-quarkus-{version}-sbom.json'

layouts/partials/releases/downloads.html

@@ -1,6 +1,9 @@
 {{/* after 2018-11-10 we started using SHA512 */}}
 {{ $sha1_cutoff := time "2018-11-10" }}
 
+{{/* from 2023-11-23 all releases have SBOM downloads */}}
+{{ $sbom_cutoff := time "2023-10-11" }}
+
 {{/* default base URLs for current releases */}}
 {{ $artifact_base_url := "https://www.apache.org/dyn/closer.lua/" }}
 {{ $meta_base_url := "https://downloads.apache.org/" }}
@@ -128,14 +131,22 @@ <h2 id="{{ $.Category.id }}"><a class="anchor" href="#{{ $.Category.id }}"></a>{
         {{ range $kind, $v := $version }}
             {{ $release_note := (index (where (where (where $.Pages "Section" "releases") ".Params.category" $.Category.id) ".Params.version" $v) 0) }}
             {{ $hash_extension := ".sha512" }}
+            {{ $hash_name := "SHA512" }}
             {{ if le $release_note.Date $sha1_cutoff }}
                 {{ $hash_extension = ".sha1" }}
+                {{ $hash_name = "SHA1" }}
+            {{ end }}
+            {{ $downloads := $.Category.downloads}}
+            {{ if lt $release_note.Date $sbom_cutoff }}
+                {{/* removes SBOM downloads based on the cutoff date */}}
+                {{ $downloads = collections.Where $downloads "name" "not in" "SBOM, CycloneDX XML" }} {{/* must match the name in data/release-categories.yaml */}}
+                {{ $downloads = collections.Where $downloads "name" "not in" "SBOM, CycloneDX JSON" }} {{/* must match the name in data/release-categories.yaml */}}
             {{ end }}
 
             <tr>
                 {{ if eq $.Section "download" }}
-                    {{ if gt (len $.Category.downloads) 1 }}
-                    <td rowspan="{{ len $.Category.downloads }}">
+                    {{ if gt (len $downloads) 1 }}
+                    <td rowspan="{{ len $downloads }}">
                     {{ else }}
                     <td>
                     {{ end }}
@@ -145,8 +156,8 @@ <h2 id="{{ $.Category.id }}"><a class="anchor" href="#{{ $.Category.id }}"></a>{
                             <em class="kind">{{ . }}</em>
                         {{ end }}
                     </td>
-                    {{ if gt (len $.Category.downloads) 1 }}
-                    <td rowspan="{{ len $.Category.downloads }}">
+                    {{ if gt (len $downloads) 1 }}
+                    <td rowspan="{{ len $downloads }}">
                     {{ else }}
                     <td>
                     {{ end }}
@@ -164,7 +175,7 @@ <h2 id="{{ $.Category.id }}"><a class="anchor" href="#{{ $.Category.id }}"></a>{
                         {{ end }}
                     </td>
                 {{ end }}
-                {{ range $idx, $download := $.Category.downloads }}
+                {{ range $idx, $download := $downloads }}
                     {{ if ne $idx 0 }}
                     </tr><tr>
                     {{ end }}