dev api key

flake.nix

@@ -80,6 +80,9 @@
 
             mkdir -p "$PGHOST"
 
+            # Use an absolute path for the PostgreSQL Unix socket.
+            PGHOST_ABS="$(cd "$PGHOST" && pwd)"
+
             # ============================================================
             # Initialise PostgreSQL cluster
             # ============================================================
@@ -101,8 +104,6 @@
             # Start PostgreSQL
             #
             # PostgreSQL is deliberately restricted to the Unix socket.
-            # No TCP/IP listener is opened, so there are no port conflicts
-            # with another local PostgreSQL instance.
             # ============================================================
 
             if ! pg_ctl \
@@ -116,7 +117,7 @@
               pg_ctl \
                 -D "$PGDATA" \
                 -l "$PGDATA/postgresql.log" \
-                -o "-c listen_addresses= -k $PGHOST" \
+                -o "-c listen_addresses= -k $PGHOST_ABS" \
                 start \
                 >/dev/null
             fi
@@ -129,7 +130,7 @@
 
             for _ in $(seq 1 50); do
               if pg_isready \
-                -h "$PGHOST" \
+                -h "$PGHOST_ABS" \
                 -U "$PGUSER" \
                 >/dev/null 2>&1
               then
@@ -164,7 +165,7 @@
             # ============================================================
 
             if ! psql \
-              -h "$PGHOST" \
+              -h "$PGHOST_ABS" \
               -U "$PGUSER" \
               -d postgres \
               -tAc \
@@ -177,7 +178,7 @@
               echo "==> Creating PostgreSQL database '$PGDATABASE'"
 
               createdb \
-                -h "$PGHOST" \
+                -h "$PGHOST_ABS" \
                 -U "$PGUSER" \
                 "$PGDATABASE"
             fi
@@ -190,7 +191,7 @@
             echo "==> Checking PostGIS"
 
             psql \
-              -h "$PGHOST" \
+              -h "$PGHOST_ABS" \
               -U "$PGUSER" \
               -d "$PGDATABASE" \
               -v ON_ERROR_STOP=1 \
@@ -198,10 +199,13 @@
               >/dev/null
 
             # ============================================================
-            # Application connection string
+            # SQLx / application connection string
+            #
+            # localhost is only the syntactic host. The host query
+            # parameter tells libpq/SQLx to use our Unix socket.
             # ============================================================
 
-            export DATABASE_URL="postgresql://$PGUSER@/$PGDATABASE?host=$PGHOST"
+            export DATABASE_URL="postgresql://$PGUSER@localhost/$PGDATABASE?host=$PGHOST_ABS"
 
             # ============================================================
             # Development information
@@ -217,14 +221,14 @@
             echo
             echo "PostgreSQL:"
             echo "  $(psql --version)"
-            echo "  socket:    $PGHOST"
+            echo "  socket:    $PGHOST_ABS"
             echo "  database:  $PGDATABASE"
             echo "  user:      $PGUSER"
             echo
             echo "PostGIS:"
 
             psql \
-              -h "$PGHOST" \
+              -h "$PGHOST_ABS" \
               -U "$PGUSER" \
               -d "$PGDATABASE" \
               -tAc "SELECT PostGIS_Full_Version();" |
@@ -242,6 +246,7 @@
             echo
             echo "============================================================"
             echo
+            set +e
           '';
         };
       }