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commit 8741bdf0ce8ccc7003e05ab5653abbf7297005a4
parent ec615e16fd60b987cad6f28f9edc9e2d41e1f605
Author: Francesco Saccone <francesco@francescosaccone.com>
Date:   Sun,  9 Mar 2025 14:46:12 +0100

feat: add script for atom.xml generation

Signed-off-by: Francesco Saccone <francesco@francescosaccone.com>

Diffstat:
A
generate-atom.sh
 | 
61
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 61 insertions(+), 0 deletions(-)
diff --git a/generate-atom.sh b/generate-atom.sh
@@ -0,0 +1,61 @@
+#!/bin/sh
+
+for program in date dirname echo find mkdir sed; do
+  if ! command -v "$program" > /dev/null 2>&1; then
+    echo "Error: Required program '$program' is not installed."
+    exit 1
+  fi
+done
+
+if [ "$#" -ne 3 ]; then
+  echo "Usage: $0 <destination> <title> <base-url>"
+  exit 1
+fi
+
+SOURCE="$(dirname $0)"
+BLOG_SOURCE="$SOURCE/blog"
+DESTINATION="$1"
+ATOM_FILE="$DESTINATION/atom.xml"
+TITLE="$2"
+BASE_URL="$3"
+
+mkdir -p "$DESTINATION"
+
+BLOG_LAST_MODIFIED=$(date -ur "$BLOG_SOURCE" +"%Y-%m-%dT%H:%M:%SZ")
+
+{
+  echo -n "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+  echo -n "<feed xmlns=\"http://www.w3.org/2005/Atom\">"
+  echo -n "<title>${TITLE}</title>"
+  echo -n "<link href=\"${BASE_URL}\" rel=\"self\"/>"
+  echo -n "<updated>$BLOG_LAST_MODIFIED</updated>"
+  echo -n "<id>$BASE_URL/atom.xml</id>"
+} > "$ATOM_FILE"
+
+for md_file
+in $(find "$BLOG_SOURCE" -mindepth 2 -maxdepth 2 -type f -name "index.md"); do
+  md_relative_file="${md_file#$BLOG_SOURCE/}"
+  
+  # Since md_relative_file will be of "some-name/index.md", we can just call
+  # its dirname as "title id" or "unformatted title".
+  entry_title_id=$(dirname "$md_relative_file")
+
+  url="$BASE_URL/blog/$entry_title_id"
+
+  # First capitalise the first letter, then replace hyphens with spaces.
+  entry_title=$(echo "${entry_title_id^}" | sed -e 's/-/ /g')
+  
+  last_modified=$(date -ur "$md_file" +"%Y-%m-%dT%H:%M:%SZ")
+
+  {
+    echo -n "<entry>"
+    echo -n "<title>$entry_title</title>"
+    echo -n "<link href=\"$url\"/>"
+    echo -n "<updated>$last_modified</updated>"
+    echo -n "</entry>"
+  } >> "$ATOM_FILE"
+done
+
+echo -n "</feed>" >> "$ATOM_FILE"
+
+echo "Atom generated: $ATOM_FILE"