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node-red/packages/node_modules/@node-red/registry/lib/installer.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
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*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var path = require("path");
var fs = require("fs");
var registry = require("./registry");
var library = require("./library");
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var log;
var exec;
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var events;
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var child_process = require('child_process');
var npmCommand = process.platform === 'win32' ? 'npm.cmd' : 'npm';
var paletteEditorEnabled = false;
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var settings;
var moduleRe = /^(@[^/]+?[/])?[^/]+?$/;
var slashRe = process.platform === "win32" ? /\\|[/]/ : /[/]/;
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function init(runtime) {
events = runtime.events;
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settings = runtime.settings;
log = runtime.log;
exec = runtime.exec;
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}
var activePromise = Promise.resolve();
function checkModulePath(folder) {
var moduleName;
var err;
var fullPath = path.resolve(folder);
var packageFile = path.join(fullPath,'package.json');
try {
var pkg = require(packageFile);
moduleName = pkg.name;
if (!pkg['node-red']) {
// TODO: nls
err = new Error("Invalid Node-RED module");
err.code = 'invalid_module';
throw err;
}
} catch(err2) {
err = new Error("Module not found");
err.code = 404;
throw err;
}
return moduleName;
}
function checkExistingModule(module,version) {
var info = registry.getModuleInfo(module);
if (info) {
if (!version || info.version === version) {
var err = new Error("Module already loaded");
err.code = "module_already_loaded";
throw err;
}
return true;
}
return false;
}
function installModule(module,version) {
activePromise = activePromise.then(() => {
//TODO: ensure module is 'safe'
return new Promise((resolve,reject) => {
var installName = module;
var isUpgrade = false;
try {
if (moduleRe.test(module)) {
// Simple module name - assume it can be npm installed
if (version) {
installName += "@"+version;
}
} else if (slashRe.test(module)) {
// A path - check if there's a valid package.json
installName = module;
module = checkModulePath(module);
}
isUpgrade = checkExistingModule(module,version);
} catch(err) {
return reject(err);
}
if (!isUpgrade) {
log.info(log._("server.install.installing",{name: module,version: version||"latest"}));
} else {
log.info(log._("server.install.upgrading",{name: module,version: version||"latest"}));
}
var installDir = settings.userDir || process.env.NODE_RED_HOME || ".";
var args = ['install','--no-audit','--no-update-notifier','--save','--save-prefix="~"','--production',installName];
log.trace(npmCommand + JSON.stringify(args));
exec.run(npmCommand,args,{
cwd: installDir
}, true).then(result => {
if (!isUpgrade) {
log.info(log._("server.install.installed",{name:module}));
resolve(require("./index").addModule(module).then(reportAddedModules));
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} else {
log.info(log._("server.install.upgraded",{name:module, version:version}));
events.emit("runtime-event",{id:"restart-required",payload:{type:"warning",text:"notification.warnings.restartRequired"},retain:true});
resolve(require("./registry").setModulePendingUpdated(module,version));
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}
}).catch(result => {
var output = result.stderr;
var e;
var lookFor404 = new RegExp(" 404 .*"+module,"m");
var lookForVersionNotFound = new RegExp("version not found: "+module+"@"+version,"m");
if (lookFor404.test(output)) {
log.warn(log._("server.install.install-failed-not-found",{name:module}));
e = new Error("Module not found");
e.code = 404;
reject(e);
} else if (isUpgrade && lookForVersionNotFound.test(output)) {
log.warn(log._("server.install.upgrade-failed-not-found",{name:module}));
e = new Error("Module not found");
e.code = 404;
reject(e);
} else {
log.warn(log._("server.install.install-failed-long",{name:module}));
log.warn("------------------------------------------");
log.warn(output);
log.warn("------------------------------------------");
reject(new Error(log._("server.install.install-failed")));
}
})
});
}).catch(err => {
// In case of error, reset activePromise to be resolvable
activePromise = Promise.resolve();
throw err;
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});
return activePromise;
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}
function reportAddedModules(info) {
//comms.publish("node/added",info.nodes,false);
if (info.nodes.length > 0) {
log.info(log._("server.added-types"));
for (var i=0;i<info.nodes.length;i++) {
for (var j=0;j<info.nodes[i].types.length;j++) {
log.info(" - "+
(info.nodes[i].module?info.nodes[i].module+":":"")+
info.nodes[i].types[j]+
(info.nodes[i].err?" : "+info.nodes[i].err:"")
);
}
}
}
return info;
}
function reportRemovedModules(removedNodes) {
//comms.publish("node/removed",removedNodes,false);
log.info(log._("server.removed-types"));
for (var j=0;j<removedNodes.length;j++) {
for (var i=0;i<removedNodes[j].types.length;i++) {
log.info(" - "+(removedNodes[j].module?removedNodes[j].module+":":"")+removedNodes[j].types[i]);
}
}
return removedNodes;
}
function uninstallModule(module) {
activePromise = activePromise.then(() => {
return new Promise((resolve,reject) => {
if (/[\s;]/.test(module)) {
reject(new Error(log._("server.install.invalid")));
return;
}
var installDir = settings.userDir || process.env.NODE_RED_HOME || ".";
var moduleDir = path.join(installDir,"node_modules",module);
try {
fs.statSync(moduleDir);
} catch(err) {
return reject(new Error(log._("server.install.uninstall-failed",{name:module})));
}
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var list = registry.removeModule(module);
log.info(log._("server.install.uninstalling",{name:module}));
var args = ['remove','--no-audit','--no-update-notifier','--save',module];
log.trace(npmCommand + JSON.stringify(args));
exec.run(npmCommand,args,{
cwd: installDir,
},true).then(result => {
log.info(log._("server.install.uninstalled",{name:module}));
reportRemovedModules(list);
library.removeExamplesDir(module);
resolve(list);
}).catch(result => {
var output = result.stderr;
log.warn(log._("server.install.uninstall-failed-long",{name:module}));
log.warn("------------------------------------------");
log.warn(output.toString());
log.warn("------------------------------------------");
reject(new Error(log._("server.install.uninstall-failed",{name:module})));
});
});
}).catch(err => {
// In case of error, reset activePromise to be resolvable
activePromise = Promise.resolve();
throw err;
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});
return activePromise;
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}
function checkPrereq() {
if (settings.hasOwnProperty('editorTheme') &&
settings.editorTheme.hasOwnProperty('palette') &&
settings.editorTheme.palette.hasOwnProperty('editable') &&
settings.editorTheme.palette.editable === false
) {
log.info(log._("server.palette-editor.disabled"));
paletteEditorEnabled = false;
return Promise.resolve();
} else {
return new Promise(resolve => {
child_process.execFile(npmCommand,['-v'],function(err,stdout) {
if (err) {
log.info(log._("server.palette-editor.npm-not-found"));
paletteEditorEnabled = false;
} else {
if (parseInt(stdout.split(".")[0]) < 3) {
log.info(log._("server.palette-editor.npm-too-old"));
paletteEditorEnabled = false;
} else {
paletteEditorEnabled = true;
}
}
resolve();
});
})
}
}
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module.exports = {
init: init,
checkPrereq: checkPrereq,
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installModule: installModule,
uninstallModule: uninstallModule,
paletteEditorEnabled: function() {
return paletteEditorEnabled
}
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}