From 3c51c3be85bb0d1bdb87ea0d6632f1c256912f27 Mon Sep 17 00:00:00 2001
From: Dimitri Staessens <dimitri@ouroboros.rocks>
Date: Sun, 6 Oct 2019 21:37:45 +0200
Subject: build: Add some required modules for node

---
 .../cross-spawn/lib/util/escapeArgument.js         | 30 ++++++++++++++++++
 node_modules/cross-spawn/lib/util/escapeCommand.js | 12 +++++++
 .../cross-spawn/lib/util/hasEmptyArgumentBug.js    | 18 +++++++++++
 node_modules/cross-spawn/lib/util/readShebang.js   | 37 ++++++++++++++++++++++
 .../cross-spawn/lib/util/resolveCommand.js         | 31 ++++++++++++++++++
 5 files changed, 128 insertions(+)
 create mode 100644 node_modules/cross-spawn/lib/util/escapeArgument.js
 create mode 100644 node_modules/cross-spawn/lib/util/escapeCommand.js
 create mode 100644 node_modules/cross-spawn/lib/util/hasEmptyArgumentBug.js
 create mode 100644 node_modules/cross-spawn/lib/util/readShebang.js
 create mode 100644 node_modules/cross-spawn/lib/util/resolveCommand.js

(limited to 'node_modules/cross-spawn/lib/util')

diff --git a/node_modules/cross-spawn/lib/util/escapeArgument.js b/node_modules/cross-spawn/lib/util/escapeArgument.js
new file mode 100644
index 0000000..367263f
--- /dev/null
+++ b/node_modules/cross-spawn/lib/util/escapeArgument.js
@@ -0,0 +1,30 @@
+'use strict';
+
+function escapeArgument(arg, quote) {
+    // Convert to string
+    arg = '' + arg;
+
+    // If we are not going to quote the argument,
+    // escape shell metacharacters, including double and single quotes:
+    if (!quote) {
+        arg = arg.replace(/([()%!^<>&|;,"'\s])/g, '^$1');
+    } else {
+        // Sequence of backslashes followed by a double quote:
+        // double up all the backslashes and escape the double quote
+        arg = arg.replace(/(\\*)"/g, '$1$1\\"');
+
+        // Sequence of backslashes followed by the end of the string
+        // (which will become a double quote later):
+        // double up all the backslashes
+        arg = arg.replace(/(\\*)$/, '$1$1');
+
+        // All other backslashes occur literally
+
+        // Quote the whole thing:
+        arg = '"' + arg + '"';
+    }
+
+    return arg;
+}
+
+module.exports = escapeArgument;
diff --git a/node_modules/cross-spawn/lib/util/escapeCommand.js b/node_modules/cross-spawn/lib/util/escapeCommand.js
new file mode 100644
index 0000000..d9c25b2
--- /dev/null
+++ b/node_modules/cross-spawn/lib/util/escapeCommand.js
@@ -0,0 +1,12 @@
+'use strict';
+
+var escapeArgument = require('./escapeArgument');
+
+function escapeCommand(command) {
+    // Do not escape if this command is not dangerous..
+    // We do this so that commands like "echo" or "ifconfig" work
+    // Quoting them, will make them unaccessible
+    return /^[a-z0-9_-]+$/i.test(command) ? command : escapeArgument(command, true);
+}
+
+module.exports = escapeCommand;
diff --git a/node_modules/cross-spawn/lib/util/hasEmptyArgumentBug.js b/node_modules/cross-spawn/lib/util/hasEmptyArgumentBug.js
new file mode 100644
index 0000000..9f2eba6
--- /dev/null
+++ b/node_modules/cross-spawn/lib/util/hasEmptyArgumentBug.js
@@ -0,0 +1,18 @@
+'use strict';
+
+// See: https://github.com/IndigoUnited/node-cross-spawn/pull/34#issuecomment-221623455
+function hasEmptyArgumentBug() {
+    var nodeVer;
+
+    if (process.platform !== 'win32') {
+        return false;
+    }
+
+    nodeVer = process.version.substr(1).split('.').map(function (num) {
+        return parseInt(num, 10);
+    });
+
+    return (nodeVer[0] === 0 && nodeVer[1] < 12);
+}
+
+module.exports = hasEmptyArgumentBug();
diff --git a/node_modules/cross-spawn/lib/util/readShebang.js b/node_modules/cross-spawn/lib/util/readShebang.js
new file mode 100644
index 0000000..2cf3541
--- /dev/null
+++ b/node_modules/cross-spawn/lib/util/readShebang.js
@@ -0,0 +1,37 @@
+'use strict';
+
+var fs = require('fs');
+var LRU = require('lru-cache');
+var shebangCommand = require('shebang-command');
+
+var shebangCache = new LRU({ max: 50, maxAge: 30 * 1000 });  // Cache just for 30sec
+
+function readShebang(command) {
+    var buffer;
+    var fd;
+    var shebang;
+
+    // Check if it is in the cache first
+    if (shebangCache.has(command)) {
+        return shebangCache.get(command);
+    }
+
+    // Read the first 150 bytes from the file
+    buffer = new Buffer(150);
+
+    try {
+        fd = fs.openSync(command, 'r');
+        fs.readSync(fd, buffer, 0, 150, 0);
+        fs.closeSync(fd);
+    } catch (e) { /* empty */ }
+
+    // Attempt to extract shebang (null is returned if not a shebang)
+    shebang = shebangCommand(buffer.toString());
+
+    // Store the shebang in the cache
+    shebangCache.set(command, shebang);
+
+    return shebang;
+}
+
+module.exports = readShebang;
diff --git a/node_modules/cross-spawn/lib/util/resolveCommand.js b/node_modules/cross-spawn/lib/util/resolveCommand.js
new file mode 100644
index 0000000..b7a9490
--- /dev/null
+++ b/node_modules/cross-spawn/lib/util/resolveCommand.js
@@ -0,0 +1,31 @@
+'use strict';
+
+var path = require('path');
+var which = require('which');
+var LRU = require('lru-cache');
+
+var commandCache = new LRU({ max: 50, maxAge: 30 * 1000 });  // Cache just for 30sec
+
+function resolveCommand(command, noExtension) {
+    var resolved;
+
+    noExtension = !!noExtension;
+    resolved = commandCache.get(command + '!' + noExtension);
+
+    // Check if its resolved in the cache
+    if (commandCache.has(command)) {
+        return commandCache.get(command);
+    }
+
+    try {
+        resolved = !noExtension ?
+            which.sync(command) :
+            which.sync(command, { pathExt: path.delimiter + (process.env.PATHEXT || '') });
+    } catch (e) { /* empty */ }
+
+    commandCache.set(command + '!' + noExtension, resolved);
+
+    return resolved;
+}
+
+module.exports = resolveCommand;
-- 
cgit v1.2.3