nvchecker: update scripts for oil & html-xml-utils

<3 to Felix Yan

https://lists.archlinux.org/pipermail/arch-dev-public/2022-February/030709.html

.repo/nvchecker.toml

@@ -1475,8 +1475,15 @@ pypi = "pytest-check"
 #cmd = './.repo/pkgver/firefox-nightly-en-gb.sh'
 
 [oil]
-source = "cmd"
+source = "htmlparser"
-cmd = "./.repo/pkgver/oil.sh"
+url = "https://www.oilshell.org/release/latest/"
+xpath = "//h1/text()"
+prefix = "Oil "
+
+[html-xml-utils]
+source = "regex"
+url = "https://www.w3.org/Tools/HTML-XML-utils/"
+regex = "html-xml-utils-(.*?).tar.gz"
 
 [enigma]
 source = "cmd"
@@ -1486,10 +1493,6 @@ cmd = "./.repo/pkgver/enigma.sh"
 source = "cmd"
 cmd = "./.repo/pkgver/samhain.sh"
 
-[html-xml-utils]
-source = "cmd"
-cmd = "./.repo/pkgver/html-xml-utils.sh"
-
 ["sendmail/libmilter"]
 source = "cmd"
 cmd = "./.repo/pkgver/sendmail.sh"

.repo/pkgver/html-xml-utils.sh

@@ -1,33 +0,0 @@
-#!/bin/bash
-set -e
-
-# check dependencies
-count=0
-for dependency in hxnormalize hxselect grep sed sort tail; do
-	if [ ! -x "$(command -v $dependency)" ]; then
-		echo "$dependency missing"
-		count=$((count+1))
-	fi
-done
-
-# exit script if any dependencies missing
-if [ $count -ne 0 ]; then
-	exit 1
-fi
-
-# upstream URL
-UPSTREAM_URL="https://www.w3.org/Tools/HTML-XML-utils/"
-
-# options to pass to cURL, including custom user agent
-USER_AGENT="hxu-version-checker/1.0 george@rawlinson.net.nz"
-CURL_OPTS=(--silent --user-agent "$USER_AGENT")
-
-curl "${CURL_OPTS[@]}" "$UPSTREAM_URL" | \
-	hxnormalize -x | \
-	hxselect -c 'a' -s '\n' | \
-	grep "html-xml-utils" | \
-	sed -e "s/html-xml-utils-//g" -e "s/.tar.gz//g" | \
-	sort -n | \
-	tail -n 1
-
-exit 0

.repo/pkgver/oil.sh

@@ -1,31 +0,0 @@
-#!/bin/bash
-set -e
-
-# check dependencies
-count=0
-for dependency in curl hxnormalize hxselect grep sed; do
-	if [ ! -x "$(command -v $dependency)" ]; then
-		echo "$dependency missing"
-		count=$((count+1))
-	fi
-done
-
-# exit script if any dependencies missing
-if [ $count -ne 0 ]; then
-	exit 1
-fi
-
-# upstream URL
-UPSTREAM_URL="https://www.oilshell.org/release/latest/"
-
-
-# options to pass to cURL, including custom user agent
-USER_AGENT="oil-version-checker/1.0 george@rawlinson.net.nz"
-CURL_OPTS=(--silent --user-agent "$USER_AGENT")
-
-curl "${CURL_OPTS[@]}" "$UPSTREAM_URL" | \
-	hxnormalize -x | \
-	hxselect -c 'a' -s '\n' | \
-	grep '.tar.gz' | \
-	sed -e "s/^oil-//" -e "s/\.tar.gz$//"
-exit 0