[SCM] PostGIS branch master updated. 3.7.0alpha1-651-g590881519

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- Log -----------------------------------------------------------------
commit 590881519946958409ed9cdc9f9f459ab34027d5
Merge: 5f4a33662 004d06e76
Author: Darafei Praliaskouski <komzpa at gmail.com>
Date:   Sun Jul 19 17:35:51 2026 -0700

    Merge pull request 'Fix Make Dist PDF fallback for embedded visual images' (!453) from Komzpa/postgis:fix/master-makedist-data-uri-images into master
    
    Reviewed-on: https://gitea.osgeo.org/postgis/postgis/pulls/453


commit 004d06e76d64b0bba71781cb10a2d4916936c45a
Author: Darafei Praliaskouski <me at komzpa.net>
Date:   Mon Jul 20 04:25:32 2026 +0400

    doc: rasterize embedded visual example images for PDF

diff --git a/doc/html/images/Makefile.in b/doc/html/images/Makefile.in
index ff15ff30b..b417b93ec 100644
--- a/doc/html/images/Makefile.in
+++ b/doc/html/images/Makefile.in
@@ -26,6 +26,7 @@ INSTALL=@INSTALL@
 INSTALL_DATA=@INSTALL_DATA@
 
 SHELL = @SHELL@
+PERL = @PERL@
 
 VPATH = $(srcdir)
 
@@ -72,14 +73,22 @@ visual-examples-pdf: visual-examples-check
 		target="$(PDF_IMAGES_BUILD_DIR)/$(VISUAL_EXAMPLES_DIR)/$$name.png"; \
 		temporary="$$target.tmp.png"; \
 		diagnostics="$$target.tmp.log"; \
+		embedded_tmpdir=; \
 		rm -f "$$temporary" "$$diagnostics"; \
 		if test "$$rasterizer" = rsvg; then \
 			rsvg-convert -w 1200 -b white -o "$$temporary" "$$source" 2>"$$diagnostics" || \
 				{ cat "$$diagnostics" >&2; exit 1; }; \
 		else \
-			$$converter -density 240 "$$source" -background white -flatten \
+			converter_source="$$source"; \
+			if grep -Eq "(xlink:)?href=['\"]data:image/[^;]+;base64," "$$source"; then \
+				embedded_tmpdir=$$(mktemp -d "$${TMPDIR:-/tmp}/postgis-visual-svg.XXXXXX"); \
+				converter_source="$$embedded_tmpdir/$$name.svg"; \
+				$(PERL) $(srcdir)/prepare-svg-for-converter.pl "$$source" "$$converter_source" "$$embedded_tmpdir" || exit 1; \
+			fi; \
+			$$converter -density 240 "$$converter_source" -background white -flatten \
 				-resize 1200x1200\> "$$temporary" 2>"$$diagnostics" || \
-				{ cat "$$diagnostics" >&2; exit 1; }; \
+				{ cat "$$diagnostics" >&2; test -z "$$embedded_tmpdir" || rm -rf "$$embedded_tmpdir"; exit 1; }; \
+			test -z "$$embedded_tmpdir" || rm -rf "$$embedded_tmpdir"; \
 		fi; \
 		test ! -s "$$diagnostics" || { cat "$$diagnostics" >&2; exit 1; }; \
 		test -s "$$temporary" || { echo "Failed to rasterize $$source" >&2; exit 1; }; \
diff --git a/doc/html/images/prepare-svg-for-converter.pl b/doc/html/images/prepare-svg-for-converter.pl
new file mode 100644
index 000000000..d252ec2dc
--- /dev/null
+++ b/doc/html/images/prepare-svg-for-converter.pl
@@ -0,0 +1,31 @@
+#!/usr/bin/env perl
+use strict;
+use warnings;
+
+use File::Path qw(make_path);
+use MIME::Base64 qw(decode_base64);
+
+my ($source, $target, $asset_dir) = @ARGV;
+die "usage: $0 SOURCE TARGET ASSET_DIR\n" unless defined $asset_dir;
+
+open my $in, '<:raw', $source or die "Cannot read $source: $!\n";
+my $svg = do { local $/; <$in> };
+close $in;
+
+make_path($asset_dir);
+
+my $index = 0;
+$svg =~ s{((?:xlink:)?href)=(['"])data:image/(png|gif|jpe?g);base64,([^'"]+)\2}{
+	my ($attribute, $quote, $extension, $encoded) = ($1, $2, $3, $4);
+	$extension = 'jpg' if $extension eq 'jpeg';
+	my $filename = sprintf('embedded-image-%03d.%s', ++$index, $extension);
+	my $path = "$asset_dir/$filename";
+	open my $out, '>:raw', $path or die "Cannot write $path: $!\n";
+	print {$out} decode_base64($encoded);
+	close $out;
+	qq{$attribute=$quote$path$quote};
+}gex;
+
+open my $out, '>:raw', $target or die "Cannot write $target: $!\n";
+print {$out} $svg;
+close $out;

-----------------------------------------------------------------------

Summary of changes:
 doc/html/images/Makefile.in                  | 13 ++++++++++--
 doc/html/images/prepare-svg-for-converter.pl | 31 ++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 2 deletions(-)
 create mode 100644 doc/html/images/prepare-svg-for-converter.pl


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