graphics/vega-lite: new port

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: jowens

graphics/vega-lite/Portfile

@@ -0,0 +1,143 @@
+# -*- coding: utf-8; mode: tcl; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- vim:fenc=utf-8:ft=tcl:et:sw=4:ts=4:sts=4
+
+PortSystem          1.0
+PortGroup           npm 1.0
+
+name                vega-lite
+version             6.4.2
+revision            0
+
+categories          graphics devel
+license             BSD
+maintainers         nomaintainer
+
+description         Vega-Lite — a high-level grammar of interactive graphics
+
+long_description    Vega-Lite is a high-level grammar of interactive graphics. It \
+                    provides a concise, declarative JSON syntax to create an expressive \
+                    range of visualizations for data analysis and presentation. \
+                    Vega-Lite specifications compile to full Vega specifications. \
+                    This port installs the Vega-Lite library and the command-line \
+                    utilities vl2vg, vl2svg, vl2png, and vl2pdf.
+
+homepage            https://vega.github.io/vega-lite/
+
+checksums           rmd160  5f646631c7b2c108e7034a832383556d84983beb \
+                    sha256  158643e963d9a4b81cb971846056fcd629798fae8bc27012b13cddb1f5c03c0f \
+                    size    1077598
+
+depends_build-append \
+                    path:bin/pkg-config:pkgconfig
+
+depends_lib-append  path:lib/pkgconfig/cairo.pc:cairo \
+                    path:lib/pkgconfig/pango.pc:pango \
+                    path:include/turbojpeg.h:libjpeg-turbo \
+                    port:giflib \
+                    path:lib/pkgconfig/librsvg-2.0.pc:librsvg \
+                    port:vega
+
+platform darwin {
+    if {${os.major} >= 22} {
+        npm.nodejs_version  24
+        npm.version         11
+    }
+}
+
+destroot {
+    file mkdir ${workpath}/.home
+    # Install vega-lite from the distfile tarball, with vega and canvas
+    # fetched from the npm registry to satisfy peer dependencies.
+    system -W ${workpath} \
+        "HOME=${workpath}/.home \
+         ${prefix}/bin/npm install -ddd --global \
+         --prefix=${destroot}${prefix} \
+         --cache=${workpath}/.npm-cache \
+         ${distpath}/${distfiles} vega canvas"
+
+    # Fix shebangs: npm writes #!/usr/bin/env node — replace with
+    # the MacPorts-provided node binary
+    foreach f [glob -nocomplain ${destroot}${prefix}/lib/node_modules/vega-lite/bin/vl2*] {
+        reinplace "s|#!/usr/bin/env node|#!${prefix}/bin/node|g" ${f}
+    }
+
+    # npm bakes the destroot path into internal metadata files; strip it
+    foreach f {
+        lib/node_modules/.package-lock.json
+        lib/node_modules/vega-lite/package.json
+    } {
+        if {[file exists ${destroot}${prefix}/${f}]} {
+            reinplace -q "s|${destroot}||g" ${destroot}${prefix}/${f}
+        }
+    }
+
+    # The vega port owns the vg2* binaries; remove any duplicates to
+    # avoid file conflicts at activation time
+    foreach f [glob -nocomplain ${destroot}${prefix}/bin/vg2*] {
+        file delete ${f}
+    }
+}
+
+test.run    yes
+test {
+    # 1. Smoke test — vl2vg --help should exit cleanly
+    system "${prefix}/bin/vl2vg --help"
+
+    # 2. Functional test — compile a minimal Vega-Lite spec to Vega JSON
+    set spec_file [file join ${workpath} test-spec.vl.json]
+    set vg_file   [file join ${workpath} test-output.vg.json]
+    set fd [open ${spec_file} w]
+    puts $fd {
+        {
+            "$schema": "https://vega.github.io/schema/vega-lite/v6.json",
+            "description": "A simple bar chart with embedded data.",
+            "data": {
+                "values": [
+                    {"a": "A", "b": 28},
+                    {"a": "B", "b": 55},
+                    {"a": "C", "b": 43}
+                ]
+            },
+            "mark": "bar",
+            "encoding": {
+                "x": {"field": "a", "type": "nominal"},
+                "y": {"field": "b", "type": "quantitative"}
+            }
+        }
+    }
+    close $fd
+
+    system "${prefix}/bin/vl2vg ${spec_file} ${vg_file}"
+
+    if {![file exists ${vg_file}]} {
+        return -code error "vl2vg failed to produce output file"
+    }
+
+    set vg_content [exec cat ${vg_file}]
+    if {![string match "*vega*" $vg_content]} {
+        return -code error "vl2vg output does not look like a Vega spec"
+    }
+
+    # 3. Render the same spec to SVG via vl2svg
+    set svg_file [file join ${workpath} test-output.svg]
+    system "${prefix}/bin/vl2svg ${spec_file} ${svg_file}"
+
+    if {![file exists ${svg_file}]} {
+        return -code error "vl2svg failed to produce output SVG"
+    }
+
+    set svg_content [exec cat ${svg_file}]
+    if {![string match "*<svg*" $svg_content]} {
+        return -code error "vl2svg output does not appear to be valid SVG"
+    }
+}
+
+notes "
+The following Vega-Lite command-line utilities have been installed:
+
+    vl2vg   — compile a Vega-Lite spec to a full Vega spec
+    vl2svg  — compile and render a Vega-Lite spec to SVG
+    vl2png  — compile and render to PNG
+    vl2pdf  — compile and render to PDF
+
+For documentation and examples, visit https://vega.github.io/vega-lite/
+"