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index.js
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index.js
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//#! /usr/bin/env node
const fs = require('fs');
const path = require('path');
const os = require('os');
const { exec } = require('child_process');
module.exports.getOSType = function() {
return os.type();
};
module.exports.setUserEnv = function(key, value) {
return handlerUserEnv(key, value, false);
};
module.exports.setSysEnv = function(key, value) {
return handlerSysEnv(key, value, false);
};
module.exports.mergeUserEnv = function(key, value) {
return handlerUserEnv(key, value, true);
};
module.exports.mergeSysEnv = function(key, value) {
return handlerSysEnv(key, value, true);
};
function handlerUserEnv(key, value, isMerge) {
process.env[key] = value;
if (os.type() === 'Windows_NT') {
return setWindowsUserEnvVariable(key, value, isMerge);
}
if (os.type() === 'Darwin') {
return setUnixUserEnvVariable(key, value, '~/.bash_profile', isMerge);
}
if (os.type() === 'Linux') {
return setUnixUserEnvVariable(key, value, '~/.bashrc', isMerge);
}
return Promise.resolve({ success: false, key, value, error: 'Unsupported OS' });
}
function handlerSysEnv(key, value, isMerge) {
process.env[key] = value;
if (os.type() === 'Windows_NT') {
return setWindowsSysEnvVariable(key, value, isMerge);
}
if (os.type() === 'Darwin') {
return setUnixSysEnvVariable(key, value, '/etc/profile', isMerge);
}
if (os.type() === 'Linux') {
return setUnixSysEnvVariable(key, value, '/etc/profile', isMerge);
}
return Promise.resolve({ success: false, key, value, error: 'Unsupported OS' });
}
module.exports.getEnvVariable = function(key) {
return process.env[key];
};
module.exports.backupEnv = function(backupPath) {
if (!backupPath) {
backupPath = path.join(os.homedir(), '.env-profile_backup.json');
}
const backup = { ...process.env };
return new Promise((resolve, reject) => {
fs.writeFile(backupPath, JSON.stringify(backup), (error) => {
if (error) {
reject(error);
} else {
resolve(backupPath);
}
});
});
};
module.exports.restoreEnv = function(backupPath) {
if (!backupPath) {
backupPath = path.join(os.homedir(), '.env-profile_backup.json');
}
return new Promise((resolve, reject) => {
fs.readFile(backupPath, 'utf8', (error, data) => {
if (error) {
reject(error);
} else {
const backup = JSON.parse(data);
process.env = { ...backup };
resolve(backup);
}
});
});
};
function setWindowsUserEnvVariable(key, value, isMerge) {
return new Promise((resolve) => {
let command = `reg add HKCU\\Environment /v ${key} /d "${value}" /f`
if (isMerge === true) {
command = `reg add HKCU\\Environment /v ${key} /d "${value};%${key}%" /f`
}
exec(command, { shell: 'cmd.exe' }, (error) => {
if (error) {
resolve({ success: false, key, value, error: error.message });
} else {
resolve({ success: true, key, value });
}
});
});
}
function setWindowsSysEnvVariable(key, value, isMerge) {
return new Promise((resolve) => {
let command = `reg add HKLM\\SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment /v ${key} /d "${value}" /f`
if (isMerge === true) {
command = `reg add HKLM\\SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Environment /v ${key} /d "${value};%${key}%" /f`
}
exec(command, { shell: 'cmd.exe' }, (error) => {
if (error) {
resolve({ success: false, key, value, error: error.message });
} else {
resolve({ success: true, key, value });
}
});
});
}
// setWindowsUserEnvVariable('PATH1', 'C:\\path\\to\\jdk', false).then(r => console.log(r))
function setUnixUserEnvVariable(key, value, configFile, isMerge) {
return new Promise((resolve) => {
let command = `echo 'export ${key}=${value}' >> ${configFile}`
if(isMerge === true){
command = `echo 'export ${key}=${value}:$${key}' >> ${configFile}`
}
exec(command, (error) => {
if (error) {
resolve({ success: false, key, value, error: error.message });
} else {
resolve({ success: true, key, value });
}
});
});
}
function setUnixSysEnvVariable(key, value, configFile, isMerge) {
return new Promise((resolve) => {
let command = `echo 'export ${key}=${value}' | sudo tee -a ${configFile}`
if (isMerge === true) {
command = `echo 'export ${key}=${value}:$${key}' | sudo tee -a ${configFile}`
}
exec(command, (error) => {
if (error) {
resolve({ success: false, key, value, error: error.message });
} else {
resolve({ success: true, key, value });
}
});
});
}