exchange

commit d9f6dc51cff7424dfc747bb16e1744416477697a
parent 5b5b77894c26effff2bd543940babba61307e47f
Author: Florian Dold <florian@dold.me>
Date:   Sun, 27 Jul 2025 12:49:33 +0200

debian: properly compress SPA files

Also remove existing badly compressed files.

Diffstat:
M
debian/taler-exchange.postinst
 | 
27
+++++++++++++++++++--------

1 file changed, 19 insertions(+), 8 deletions(-)
diff --git a/debian/taler-exchange.postinst b/debian/taler-exchange.postinst
@@ -95,14 +95,25 @@ configure)
       /etc/taler-exchange/secrets/exchange-db.secret.conf
   fi
 
-  # Try to generate compressed versions of the SPAs
-  for n in forms.json index.css index.js index.html
-  do
-      TDIR="/usr/share/taler-exchange/"
-      gzip --best - < "${TDIR}/aml-spa/$n" > "${TDIR}/aml-spa/$n.gz" || true
-      gzip --best - < "${TDIR}/kyc-spa/$n" > "${TDIR}/kyc-spa/$n.gz" || true
-      zstd -19 - < "${TDIR}/aml-spa/$n" > "${TDIR}/aml-spa/$n.zstd" || true
-      zstd -19 - < "${TDIR}/kyc-spa/$n" > "${TDIR}/kyc-spa/$n.zstd" || true
+  # Check if we have compression commands
+  zstd --version >/dev/null 2>&1; have_zstd=$(( ! $? ))
+  gzip --version >/dev/null 2>&1; have_gzip=$(( ! $? ))
+
+  # Generate compressed versions of the SPA files.
+  # Remove existing files if compression tool is not available,
+  # as previous package version wrongly generated empty files
+  # when the tool was missing.
+  for n in /usr/share/taler-exchange/*-spa/*.{css,js,html,json}; do
+    if [[ $have_gzip = 1 ]]; then
+      gzip -f --best "$n" > "$n.gz"
+    else
+      rm -f "$n.gz"
+    fi
+    if [[ $have_zstd = 1 ]]; then
+      zstd -f -19 "$n" > "$n.zstd"
+    else
+      rm -f "$n.zstd"
+    fi
   done
   ;;