ports-mgmt/parfetch-overlay: Add overlay to fetch distfiles in parallel and with pipelining

Ports that fetch multiple distfiles from the same host can
especially benefit from this.

This is a glue application between libcurl and the ports
framework. It comes with a ports overlay that replaces the
default do-fetch and checksum targets.

This is an experiment. Use at your own risk.

WWW: https://github.com/t6/parfetch
Demo: https://asciinema.org/a/ogjs0MiCNZxqwYy2xliHfYEaM

Some unscientific but repeatable numbers: tokei (152 distfiles)
fetch is down from ~44s to ~3s. wlroots (34 distfiles) fetch is
down from ~12s to ~3s. rust makesum (28 distfiles) is down from
~90s to ~50s.

6 files changed, 86 insertions, 0 deletions

diff --git a/ports-mgmt/Makefile b/ports-mgmt/Makefile
index 3809ff9946d0..fed51cb0637b 100644
--- a/ports-mgmt/Makefile
+++ b/ports-mgmt/Makefile
@@ -21,6 +21,7 @@
     SUBDIR += p5-FreeBSD-Ports
     SUBDIR += p5-FreeBSD-Ports-INDEXhash
     SUBDIR += packagekit
+    SUBDIR += parfetch-overlay
     SUBDIR += pchecker
     SUBDIR += pkg
     SUBDIR += pkg-devel
diff --git a/ports-mgmt/parfetch-overlay/Makefile b/ports-mgmt/parfetch-overlay/Makefile
new file mode 100644
index 000000000000..a14ac93ca17a
--- /dev/null
+++ b/ports-mgmt/parfetch-overlay/Makefile
@@ -0,0 +1,29 @@
+PORTNAME=	parfetch
+DISTVERSION=	a20211126
+CATEGORIES=	ports-mgmt
+MASTER_SITES=	https://github.com/t6/parfetch/releases/download/${DISTVERSION}/
+PKGNAMESUFFIX=	-overlay
+
+MAINTAINER=	tobik@FreeBSD.org
+COMMENT=	Fetch distfiles in parallel and with pipelining
+
+LICENSE=	BSD2CLAUSE
+LICENSE_FILE=	${WRKSRC}/LICENSE
+
+LIB_DEPENDS=	libcurl.so:ftp/curl \
+		libevent.so:devel/libevent
+
+USES=		ninja pkgconfig tar:lz
+HAS_CONFIGURE=	yes
+CONFIGURE_ARGS=	AR="${AR}" \
+		CC="${CC}" \
+		CFLAGS="${CFLAGS}" \
+		CPPFLAGS="${CPPFLAGS}" \
+		DESTDIR="${STAGEDIR}" \
+		INSTALL_DATA="${INSTALL_DATA}" \
+		INSTALL_PROGRAM="${INSTALL_PROGRAM}" \
+		LDFLAGS="${LDFLAGS}" \
+		PREFIX="${PREFIX}"
+SUB_FILES=	pkg-message
+
+.include <bsd.port.mk>
diff --git a/ports-mgmt/parfetch-overlay/distinfo b/ports-mgmt/parfetch-overlay/distinfo
new file mode 100644
index 000000000000..bea39c4e4a8a
--- /dev/null
+++ b/ports-mgmt/parfetch-overlay/distinfo
@@ -0,0 +1,3 @@
+TIMESTAMP = 1637920935
+SHA256 (parfetch-a20211126.tar.lz) = 55c3614b57aeb8664c11e6c7c8a0bffd5cace6fb3a131d2c504539e31dca4d90
+SIZE (parfetch-a20211126.tar.lz) = 83026
diff --git a/ports-mgmt/parfetch-overlay/files/pkg-message.in b/ports-mgmt/parfetch-overlay/files/pkg-message.in
new file mode 100644
index 000000000000..896670f980e4
--- /dev/null
+++ b/ports-mgmt/parfetch-overlay/files/pkg-message.in
@@ -0,0 +1,37 @@
+[
+{ type: install
+  message: <<EOM
+Local setup
+===========
+
+Add this to /etc/make.conf
+
+OVERLAYS+=	%%DATADIR%%/overlay
+
+It replaces the default do-fetch and checksum targets.
+
+Poudriere setup
+===============
+
+This requires a Poudriere version that supports overlays like
+poudriere-devel.
+
+Make the overlay available to Poudriere
+
+$ poudriere ports -c -p parfetch -m null -M %%DATADIR%%/overlay
+
+Use it
+
+$ poudriere bulk -O parfetch ...
+
+Additional configuration
+========================
+
+For additional configuration options please refer to
+%%DATADIR%%/overlay/Mk/bsd.overlay.mk
+
+The overlay can be disabled at any time by defining
+NO_PARFETCH.
+EOM
+}
+]
diff --git a/ports-mgmt/parfetch-overlay/pkg-descr b/ports-mgmt/parfetch-overlay/pkg-descr
new file mode 100644
index 000000000000..63d2ee8e9f3d
--- /dev/null
+++ b/ports-mgmt/parfetch-overlay/pkg-descr
@@ -0,0 +1,12 @@
+Fetch distfiles in parallel and with pipelining
+
+Ports that fetch multiple distfiles from the same host can
+especially benefit from this.
+
+This is a glue application between libcurl and the ports
+framework. It comes with a ports overlay that replaces the
+default do-fetch and checksum targets.
+
+This is an experiment. Use at your own risk.
+
+WWW: https://github.com/t6/parfetch
diff --git a/ports-mgmt/parfetch-overlay/pkg-plist b/ports-mgmt/parfetch-overlay/pkg-plist
new file mode 100644
index 000000000000..cb6b1ea8958c
--- /dev/null
+++ b/ports-mgmt/parfetch-overlay/pkg-plist
@@ -0,0 +1,4 @@
+bin/parfetch
+bin/parfetch-static
+%%DATADIR%%/overlay/Mk/bsd.overlay.mk
+%%DATADIR%%/overlay/bin/parfetch-static