nodejs-oe-cache-native: initial checkin

This implements an 'npm cache add' like functionality but allows to
specify the key of the data and sets metadata which are required to
find the data.

It is used to cache information as done during 'npm install'.

Keyformat and metadata are nodejs version specific.

Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 98 insertions, 0 deletions

diff --git a/meta-oe/recipes-devtools/nodejs/nodejs-oe-cache-16.14/oe-npm-cache b/meta-oe/recipes-devtools/nodejs/nodejs-oe-cache-16.14/oe-npm-cache
new file mode 100755
index 0000000000..f596207648
--- /dev/null
+++ b/meta-oe/recipes-devtools/nodejs/nodejs-oe-cache-16.14/oe-npm-cache
@@ -0,0 +1,77 @@
+#!/usr/bin/env node
+
+/// Usage: oe-npm-cache <cache-dir> <type> <key> <file-name>
+///    <type> ... meta - metainformation about package
+///               tgz  - tarball
+
+const process = require("node:process");
+
+module.paths.unshift("@@libdir@@/node_modules/npm/node_modules");
+
+const cacache = require('cacache')
+const fs = require('fs')
+
+// argv[0] is 'node', argv[1] is this script
+const cache_dir = process.argv[2]
+const type      = process.argv[3]
+const key       = process.argv[4]
+const file      = process.argv[5]
+
+const data = fs.readFileSync(file)
+
+// metadata content is highly nodejs dependent; when cache entries are not
+// found, place debug statements in 'make-fetch-happen/lib/cache/policy.js'
+// (CachePolicy::satisfies())
+const xlate = {
+    'meta': {
+        'key_prefix': 'make-fetch-happen:request-cache:',
+        'metadata': function() {
+            return {
+                time: Date.now(),
+                url:  key,
+                reqHeaders: {
+                    'accept': 'application/vnd.npm.install-v1+json; q=1.0, application/json; q=0.8, */*',
+                },
+                resHeaders: {
+                    "content-type": "application/json",
+                    "status": 200,
+                },
+                options: {
+                    compress: true,
+                }
+            };
+        },
+    },
+
+    'tgz': {
+        'key_prefix': 'make-fetch-happen:request-cache:',
+        'metadata': function() {
+            return {
+                time: Date.now(),
+                url:  key,
+                reqHeaders: {
+                    'accept': '*/*',
+                },
+                resHeaders: {
+                    "content-type": "application/octet-stream",
+                    "status": 200,
+                },
+                options: {
+                    compress: true,
+                },
+            };
+        },
+    },
+};
+
+const info = xlate[type];
+let opts = {}
+
+if (info.metadata) {
+    opts['metadata'] = info.metadata();
+}
+
+cacache.put(cache_dir, info.key_prefix + key, data, opts)
+    .then(integrity => {
+        console.log(`Saved content of ${key} (${file}).`);
+})
diff --git a/meta-oe/recipes-devtools/nodejs/nodejs-oe-cache-native_16.14.bb b/meta-oe/recipes-devtools/nodejs/nodejs-oe-cache-native_16.14.bb
new file mode 100644
index 0000000000..a61dd5018f
--- /dev/null
+++ b/meta-oe/recipes-devtools/nodejs/nodejs-oe-cache-native_16.14.bb
@@ -0,0 +1,21 @@
+DESCRIPTION = "OE helper for manipulating npm cache"
+LICENSE = "Apache-2.0"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/Apache-2.0;md5=89aea4e17d99a7cacdbeed46a0096b10"
+
+SRC_URI = "\
+    file://oe-npm-cache \
+"
+
+inherit native
+
+B = "${WORKDIR}/build"
+
+do_configure() {
+    sed -e 's!@@libdir@@!${libdir}!g' < '${WORKDIR}/oe-npm-cache' > '${B}/oe-npm-cache'
+}
+
+do_install() {
+    install -D -p -m 0755 ${B}/oe-npm-cache ${D}${bindir}/oe-npm-cache
+}
+
+RDEPENDS:${PN} = "nodejs-native"