time-to-botec

Benchmark sampling in different programming languages
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resolveCommand.js (1557B)

      1 'use strict';
      2 
      3 const path = require('path');
      4 const which = require('which');
      5 const getPathKey = require('path-key');
      6 
      7 function resolveCommandAttempt(parsed, withoutPathExt) {
      8     const env = parsed.options.env || process.env;
      9     const cwd = process.cwd();
     10     const hasCustomCwd = parsed.options.cwd != null;
     11     // Worker threads do not have process.chdir()
     12     const shouldSwitchCwd = hasCustomCwd && process.chdir !== undefined && !process.chdir.disabled;
     13 
     14     // If a custom `cwd` was specified, we need to change the process cwd
     15     // because `which` will do stat calls but does not support a custom cwd
     16     if (shouldSwitchCwd) {
     17         try {
     18             process.chdir(parsed.options.cwd);
     19         } catch (err) {
     20             /* Empty */
     21         }
     22     }
     23 
     24     let resolved;
     25 
     26     try {
     27         resolved = which.sync(parsed.command, {
     28             path: env[getPathKey({ env })],
     29             pathExt: withoutPathExt ? path.delimiter : undefined,
     30         });
     31     } catch (e) {
     32         /* Empty */
     33     } finally {
     34         if (shouldSwitchCwd) {
     35             process.chdir(cwd);
     36         }
     37     }
     38 
     39     // If we successfully resolved, ensure that an absolute path is returned
     40     // Note that when a custom `cwd` was used, we need to resolve to an absolute path based on it
     41     if (resolved) {
     42         resolved = path.resolve(hasCustomCwd ? parsed.options.cwd : '', resolved);
     43     }
     44 
     45     return resolved;
     46 }
     47 
     48 function resolveCommand(parsed) {
     49     return resolveCommandAttempt(parsed) || resolveCommandAttempt(parsed, true);
     50 }
     51 
     52 module.exports = resolveCommand;