From c5b4d99f7459db8a04a41884e80b32c14ef470ae Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 9 Jan 2019 13:14:22 +1100
Subject: [PATCH 01/30] mapped spawn()

---
 src/util/child.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/util/child.js b/src/util/child.js
index e83b819745..6018eec6bd 100644
--- a/src/util/child.js
+++ b/src/util/child.js
@@ -58,6 +58,7 @@ type ProcessFn = (
   done: () => void,
 ) => void;
 
+/* [STEMN]: Trace for subprocesses ie. script files */
 export function spawn(
   program: string,
   args: Array<string>,

From 8f075338eac4a2264c9bce6ab5496cbf99b4b59a Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 9 Jan 2019 13:20:56 +1100
Subject: [PATCH 02/30] mapped execCommand()

---
 src/util/execute-lifecycle-script.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/util/execute-lifecycle-script.js b/src/util/execute-lifecycle-script.js
index aae9a2d09d..195b1a0a6d 100644
--- a/src/util/execute-lifecycle-script.js
+++ b/src/util/execute-lifecycle-script.js
@@ -357,6 +357,11 @@ export async function execCommand({
 }): Promise<void> {
   const {reporter} = config;
   try {
+    /* [STEMN]: Trace execCommand start execution time */
+
+
+
+
     reporter.command(cmd);
     await executeLifecycleScript({stage, config, cwd, cmd, isInteractive, customShell});
     return Promise.resolve();
@@ -370,5 +375,6 @@ export async function execCommand({
     } else {
       throw err;
     }
+     /* [STEMN]: Trace execCommand finish exeuction  time */
   }
 }

From f78ee09e34045e183c923cf94395806a8d094f4f Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 9 Jan 2019 13:36:08 +1100
Subject: [PATCH 03/30] mapped index.js => main()

---
 src/cli/index.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/cli/index.js b/src/cli/index.js
index a4b307d57a..0608dff8bf 100644
--- a/src/cli/index.js
+++ b/src/cli/index.js
@@ -41,6 +41,7 @@ function findProjectRoot(base: string): string {
   return base;
 }
 
+/* [STEMN]: main function here (multiple threads executed) */
 export async function main({
   startArgs,
   args,
@@ -244,7 +245,9 @@ export async function main({
 
   const config = new Config(reporter);
   const outputWrapperEnabled = boolifyWithDefault(process.env.YARN_WRAP_OUTPUT, true);
-  const shouldWrapOutput = outputWrapperEnabled && !commander.json && command.hasWrapper(commander, commander.args);
+  const shouldWrapOutpu = outputWrapperEnabled && !commander.json && command.hasWrapper(commander, commander.args);
+
+  
 
   if (shouldWrapOutput) {
     reporter.header(commandName, {name: 'yarn', version});
@@ -283,6 +286,10 @@ export async function main({
       if (shouldWrapOutput) {
         reporter.footer(false);
       }
+
+      /* [STEMN]: Possible hook here for exitCode conditional code */
+
+
       return exitCode;
     });
   };
@@ -478,6 +485,8 @@ export async function main({
     if (errorReportLoc) {
       reporter.info(reporter.lang('bugReport', errorReportLoc));
     }
+
+    /* [STEMN]: Warn in logs about unexpected error -> inconsistencies */
   }
 
   function writeErrorReport(log): ?string {

From 112816917e8233b3289adc0effb34e90a8c93175 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 9 Jan 2019 13:41:36 +1100
Subject: [PATCH 04/30] mapped header()/footer()

---
 src/reporters/console/console-reporter.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/reporters/console/console-reporter.js b/src/reporters/console/console-reporter.js
index 0fe162788c..775dc0cf89 100644
--- a/src/reporters/console/console-reporter.js
+++ b/src/reporters/console/console-reporter.js
@@ -159,10 +159,12 @@ export default class ConsoleReporter extends BaseReporter {
     }
   }
 
+ /* [STEMN]: header reporter. Hook to clean logs */
   header(command: string, pkg: Package) {
     this.log(this.format.bold(`${pkg.name} ${command} v${pkg.version}`));
   }
 
+/* [STEMN]: footer reporter. Hook to do log post-processing */
   footer(showPeakMemory?: boolean) {
     this.stopProgress();
 

From cba4da999b025c03b8f955d16c7afd53e05b5ab5 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 9 Jan 2019 14:55:07 +1100
Subject: [PATCH 05/30] added new logging file and imported in relevant files

---
 src/cli/index.js                          |  4 ++++
 src/cli/logging.js                        | 18 ++++++++++++++++++
 src/reporters/console/console-reporter.js |  3 +++
 src/util/child.js                         |  3 +++
 src/util/execute-lifecycle-script.js      |  3 +++
 5 files changed, 31 insertions(+)
 create mode 100644 src/cli/logging.js

diff --git a/src/cli/index.js b/src/cli/index.js
index 0608dff8bf..c789fb9c41 100644
--- a/src/cli/index.js
+++ b/src/cli/index.js
@@ -25,6 +25,9 @@ import {version} from '../util/yarn-version.js';
 import handleSignals from '../util/signal-handler.js';
 import {boolify, boolifyWithDefault} from '../util/conversion.js';
 
+// STEMN import
+import {benchmark, debugging} from './logging.js';
+
 function findProjectRoot(base: string): string {
   let prev = null;
   let dir = base;
@@ -487,6 +490,7 @@ export async function main({
     }
 
     /* [STEMN]: Warn in logs about unexpected error -> inconsistencies */
+    debug(">>>>>>>> WARNING: LOGS MAY BE INCONSISTENT DUE TO ERROR <<<<<<<<\n");
   }
 
   function writeErrorReport(log): ?string {
diff --git a/src/cli/logging.js b/src/cli/logging.js
new file mode 100644
index 0000000000..cbf2247219
--- /dev/null
+++ b/src/cli/logging.js
@@ -0,0 +1,18 @@
+import * as fs from '../../src/util/fs.js';
+
+// outputs a string to the main CSV file
+export function benchmark(str: string) {
+  let log_location = "/stemn/yarn/yarn.csv"
+  fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
+}
+
+// outputs a string to the debugging log file
+export function debug(str: string) {
+  let log_location = "/stemn/yarn/debug.log"
+  fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
+}
+
+/*
+  Other writes performed:
+    -> header: truncate files
+*/
diff --git a/src/reporters/console/console-reporter.js b/src/reporters/console/console-reporter.js
index 775dc0cf89..fe82f635ca 100644
--- a/src/reporters/console/console-reporter.js
+++ b/src/reporters/console/console-reporter.js
@@ -22,6 +22,9 @@ import {sortTrees, recurseTree, getFormattedOutput} from './helpers/tree-helper.
 import inquirer from 'inquirer';
 import Table from 'cli-table3';
 
+// STEMN import
+import {benchmark, debug} from '../../cli/logging.js';
+
 const {inspect} = require('util');
 const readline = require('readline');
 const chalk = require('chalk');
diff --git a/src/util/child.js b/src/util/child.js
index 6018eec6bd..6869d45e1e 100644
--- a/src/util/child.js
+++ b/src/util/child.js
@@ -6,6 +6,9 @@ import BlockingQueue from './blocking-queue.js';
 import {ProcessSpawnError, ProcessTermError} from '../errors.js';
 import {promisify} from './promise.js';
 
+// STEMN import
+import {benchmark, debug} from '../cli/logging.js';
+
 const child = require('child_process');
 
 export const queue = new BlockingQueue('child', constants.CHILD_CONCURRENCY);
diff --git a/src/util/execute-lifecycle-script.js b/src/util/execute-lifecycle-script.js
index 195b1a0a6d..4abfd7a307 100644
--- a/src/util/execute-lifecycle-script.js
+++ b/src/util/execute-lifecycle-script.js
@@ -11,6 +11,9 @@ import {registries} from '../resolvers/index.js';
 import {fixCmdWinSlashes} from './fix-cmd-win-slashes.js';
 import {getBinFolder as getGlobalBinFolder, run as globalRun} from '../cli/commands/global.js';
 
+// STEMN import
+import {benchmark, debug} from '../cli/logging.js';
+
 const path = require('path');
 
 export type LifecycleReturn = Promise<{

From 49b086783335ce6c83244b7d9adf9c861a19976e Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 9 Jan 2019 05:07:34 +0000
Subject: [PATCH 06/30] missing t

---
 src/cli/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cli/index.js b/src/cli/index.js
index c789fb9c41..9b6a66b2c7 100644
--- a/src/cli/index.js
+++ b/src/cli/index.js
@@ -248,7 +248,7 @@ export async function main({
 
   const config = new Config(reporter);
   const outputWrapperEnabled = boolifyWithDefault(process.env.YARN_WRAP_OUTPUT, true);
-  const shouldWrapOutpu = outputWrapperEnabled && !commander.json && command.hasWrapper(commander, commander.args);
+  const shouldWrapOutput = outputWrapperEnabled && !commander.json && command.hasWrapper(commander, commander.args);
 
   
 

From 1d514a1060c6d4d2061c50e718dae9da0f13a6e3 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Thu, 10 Jan 2019 13:51:59 +1100
Subject: [PATCH 07/30] intermeddiate push

---
 src/cli/logging.js                        |  6 ++--
 src/reporters/console/console-reporter.js | 16 +++++++++
 src/util/child.js                         | 41 +++++++++++++++++++++++
 src/util/execute-lifecycle-script.js      | 38 +++++++++++++++++++--
 4 files changed, 97 insertions(+), 4 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index cbf2247219..83709b1ae2 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -1,4 +1,4 @@
-import * as fs from '../../src/util/fs.js';
+const fs = require('fs');
 
 // outputs a string to the main CSV file
 export function benchmark(str: string) {
@@ -14,5 +14,7 @@ export function debug(str: string) {
 
 /*
   Other writes performed:
-    -> header: truncate files
+    -> src/reporters/console/console-rpeorter.js 
+        -> Header (truncating log file)
+        -> Footer (post-process log(s))
 */
diff --git a/src/reporters/console/console-reporter.js b/src/reporters/console/console-reporter.js
index fe82f635ca..11797e7515 100644
--- a/src/reporters/console/console-reporter.js
+++ b/src/reporters/console/console-reporter.js
@@ -24,6 +24,7 @@ import Table from 'cli-table3';
 
 // STEMN import
 import {benchmark, debug} from '../../cli/logging.js';
+const fs = require('fs');
 
 const {inspect} = require('util');
 const readline = require('readline');
@@ -165,6 +166,21 @@ export default class ConsoleReporter extends BaseReporter {
  /* [STEMN]: header reporter. Hook to clean logs */
   header(command: string, pkg: Package) {
     this.log(this.format.bold(`${pkg.name} ${command} v${pkg.version}`));
+
+/*
+    require("fs").writeFile('', '', function(){})
+    require("fs").writeFile('/tmp/logfile', '', function(){})
+
+		// we perform our own reporting 
+    this._logCategory('STEMN', 'magenta', "Cleaning logs of previous run...");
+    this._logCategory('STEMN', 'magenta', "Truncating and preparing log file...");
+
+    var csv_header = "PID,Command,Timestamp,Duration,PWD\n";
+    require("fs").writeFileSync("/tmp/logfile", csv_header, function (err) {
+        if (err) throw err;
+    });
+*/
+
   }
 
 /* [STEMN]: footer reporter. Hook to do log post-processing */
diff --git a/src/util/child.js b/src/util/child.js
index 6869d45e1e..ef44b55264 100644
--- a/src/util/child.js
+++ b/src/util/child.js
@@ -76,6 +76,23 @@ export function spawn(
         const proc = child.spawn(program, args, opts);
         spawnedProcesses[key] = proc;
 
+        let first_timestamp = (new Date() / 1000);
+        let trace = "";
+
+        // if we ever decide to do parent-child relationships
+        // trace += `${process.ppid } spawned ${process.pid} spawned ${proc.pid}`
+
+        trace += `[${proc.pid}]\t`;
+        trace += `[${program}]\t`;
+        trace += `[${key}]\n`;
+        trace += args;
+        trace += "\n";
+
+        // only log it if the subprocess has ".sh"
+        if(program.indexOf(".sh") > -1) {
+          debug(trace);
+        }
+
         let processingDone = false;
         let processClosed = false;
         let err = null;
@@ -99,6 +116,30 @@ export function spawn(
 
         function finish() {
           delete spawnedProcesses[key];
+
+
+        /* [STEMN]: Trace script when finishing execution */
+        let final_timestamp = ((new Date() / 1000) - first_timestamp).toFixed(3);
+        let trace = "";
+        trace += `[${proc.pid}] `;
+        trace += `${program} `;
+        trace += `(Finished: ${final_timestamp}s). \n`;
+
+        // only log it if the subprocess has ".sh"
+        if(program.indexOf(".sh") > -1) {
+          debug(trace);
+
+          // Add the finished process to the stack for printing
+          let csv_line = "";
+          csv_line += `${proc.pid},`;
+          csv_line += `\"${program}\",`
+          csv_line += `${first_timestamp},`
+          csv_line += `${final_timestamp},`
+          csv_line += `\"${key}\"\n`;
+
+          benchmark(csv_line);
+        }
+
           if (err) {
             reject(err);
           } else {
diff --git a/src/util/execute-lifecycle-script.js b/src/util/execute-lifecycle-script.js
index 4abfd7a307..38127dbbee 100644
--- a/src/util/execute-lifecycle-script.js
+++ b/src/util/execute-lifecycle-script.js
@@ -360,10 +360,18 @@ export async function execCommand({
 }): Promise<void> {
   const {reporter} = config;
   try {
-    /* [STEMN]: Trace execCommand start execution time */
 
+    /* [STEMN]: Trace execCommand start execution time */
 
+    let first_timestamp = (new Date() / 1000).toFixed(3);
+    let trace = "";
+    trace += `[${process.pid}] `;
+    trace += `|BEGIN|\t\t`;
+    trace += `${first_timestamp}\t`;
+    trace += `[${stage}]\t\t\t`;
+    trace += `[${cwd}]\n`;
 
+    debug(trace);
 
     reporter.command(cmd);
     await executeLifecycleScript({stage, config, cwd, cmd, isInteractive, customShell});
@@ -378,6 +386,32 @@ export async function execCommand({
     } else {
       throw err;
     }
-     /* [STEMN]: Trace execCommand finish exeuction  time */
   }
+} finally {
+
+  /* [STEMN]: Trace execCommand finish exeuction  time */
+
+  //var trace = `[${process.ppid}]->[${process.pid}][${process.uptime()}] >END<`
+
+  let final_timestamp = ((new Date() / 1000) - first_timestamp).toFixed(3);
+  let trace = "";
+  trace += `[${process.pid}]`;
+  trace += `[${process.uptime()}] `;
+  trace += `>END<\t\t`;
+  trace += `${final_timestamp}\t`;
+  trace += `[${stage}]`;
+  //trace += `\t\t\t[${cwd}]`;
+  trace += "\n";
+
+  debug(trace);
+
+  // PID, STAGE, TIMESTAMP, DURATION, CWD
+  let csv_line = "";
+  csv_line = `${process.pid},`;
+  csv_line += `\"${stage}\",`;
+  csv_line += `${first_timestamp},`;
+  csv_line += `${final_timestamp},`;
+  csv_line += `\"${cwd}\"\n`;
+  benchmark(csv_line);
+
 }

From 8f7d02491538634564aadd8bbd2344010983ff03 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Thu, 10 Jan 2019 03:28:54 +0000
Subject: [PATCH 08/30] indentation issue

---
 src/util/execute-lifecycle-script.js | 45 ++++++++++++++--------------
 1 file changed, 22 insertions(+), 23 deletions(-)

diff --git a/src/util/execute-lifecycle-script.js b/src/util/execute-lifecycle-script.js
index 38127dbbee..a2d4128c0c 100644
--- a/src/util/execute-lifecycle-script.js
+++ b/src/util/execute-lifecycle-script.js
@@ -386,32 +386,31 @@ export async function execCommand({
     } else {
       throw err;
     }
-  }
-} finally {
-
-  /* [STEMN]: Trace execCommand finish exeuction  time */
+  } finally {
 
-  //var trace = `[${process.ppid}]->[${process.pid}][${process.uptime()}] >END<`
+    /* [STEMN]: Trace execCommand finish exeuction  time */
 
-  let final_timestamp = ((new Date() / 1000) - first_timestamp).toFixed(3);
-  let trace = "";
-  trace += `[${process.pid}]`;
-  trace += `[${process.uptime()}] `;
-  trace += `>END<\t\t`;
-  trace += `${final_timestamp}\t`;
-  trace += `[${stage}]`;
-  //trace += `\t\t\t[${cwd}]`;
-  trace += "\n";
+    //var trace = `[${process.ppid}]->[${process.pid}][${process.uptime()}] >END<`
 
-  debug(trace);
+    let final_timestamp = ((new Date() / 1000) - first_timestamp).toFixed(3);
+    let trace = "";
+    trace += `[${process.pid}]`;
+    trace += `[${process.uptime()}] `;
+    trace += `>END<\t\t`;
+    trace += `${final_timestamp}\t`;
+    trace += `[${stage}]`;
+    //trace += `\t\t\t[${cwd}]`;
+    trace += "\n";
 
-  // PID, STAGE, TIMESTAMP, DURATION, CWD
-  let csv_line = "";
-  csv_line = `${process.pid},`;
-  csv_line += `\"${stage}\",`;
-  csv_line += `${first_timestamp},`;
-  csv_line += `${final_timestamp},`;
-  csv_line += `\"${cwd}\"\n`;
-  benchmark(csv_line);
+    debug(trace);
 
+    // PID, STAGE, TIMESTAMP, DURATION, CWD
+    let csv_line = "";
+    csv_line = `${process.pid},`;
+    csv_line += `\"${stage}\",`;
+    csv_line += `${first_timestamp},`;
+    csv_line += `${final_timestamp},`;
+    csv_line += `\"${cwd}\"\n`;
+    benchmark(csv_line);
+  }
 }

From ac9de0f854aa8e490697cb3071f08d5e537bc181 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Thu, 10 Jan 2019 03:37:09 +0000
Subject: [PATCH 09/30] debugging -> debug

---
 src/cli/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cli/index.js b/src/cli/index.js
index 9b6a66b2c7..afd5c87dff 100644
--- a/src/cli/index.js
+++ b/src/cli/index.js
@@ -26,7 +26,7 @@ import handleSignals from '../util/signal-handler.js';
 import {boolify, boolifyWithDefault} from '../util/conversion.js';
 
 // STEMN import
-import {benchmark, debugging} from './logging.js';
+import {benchmark, debug} from './logging.js';
 
 function findProjectRoot(base: string): string {
   let prev = null;

From 48edb39737018ceebfbb4d7a85de4361444d955f Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Thu, 10 Jan 2019 14:56:06 +1100
Subject: [PATCH 10/30] added header/footer

---
 src/reporters/console/console-reporter.js | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/reporters/console/console-reporter.js b/src/reporters/console/console-reporter.js
index 11797e7515..aeabeec54f 100644
--- a/src/reporters/console/console-reporter.js
+++ b/src/reporters/console/console-reporter.js
@@ -167,19 +167,23 @@ export default class ConsoleReporter extends BaseReporter {
   header(command: string, pkg: Package) {
     this.log(this.format.bold(`${pkg.name} ${command} v${pkg.version}`));
 
-/*
-    require("fs").writeFile('', '', function(){})
-    require("fs").writeFile('/tmp/logfile', '', function(){})
+    // when debugging to stop yarn from complaining
+    let dir = "/stemn/yarn";
+    if (!fs.existsSync(dir)){
+        fs.mkdirSync(dir);
+    }
+
+    fs.writeFile('/stemn/yarn/yarn.csv', '', function(){})
+    fs.writeFile('/stemn/yarn/debug.log', '', function(){})
 
-		// we perform our own reporting 
+		// we perform our own reporting as well
     this._logCategory('STEMN', 'magenta', "Cleaning logs of previous run...");
     this._logCategory('STEMN', 'magenta', "Truncating and preparing log file...");
 
     var csv_header = "PID,Command,Timestamp,Duration,PWD\n";
-    require("fs").writeFileSync("/tmp/logfile", csv_header, function (err) {
+    fs.writeFileSync("/stemn/yarn/yarn.csv", csv_header, function (err) {
         if (err) throw err;
     });
-*/
 
   }
 
@@ -194,6 +198,10 @@ export default class ConsoleReporter extends BaseReporter {
       msg += ` Peak memory usage ${peakMemory}MB.`;
     }
     this.log(this._prependEmoji(msg, '✨'));
+
+    this._logCategory('STEMN', 'magenta', "Post-processing logs into suitable format...");
+    this._logCategory('STEMN', 'magenta', "Output file: " + this.format.underline("/stemn/yarn/yarn.csv"));
+
   }
 
   log(msg: string, {force = false}: {force?: boolean} = {}) {

From 037076bee3682ef296069d8cee5c7580fc83bb46 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Thu, 10 Jan 2019 15:12:01 +1100
Subject: [PATCH 11/30] moved first_timestamp up

---
 src/util/execute-lifecycle-script.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/util/execute-lifecycle-script.js b/src/util/execute-lifecycle-script.js
index a2d4128c0c..309f6cdb9f 100644
--- a/src/util/execute-lifecycle-script.js
+++ b/src/util/execute-lifecycle-script.js
@@ -359,11 +359,12 @@ export async function execCommand({
   customShell?: string,
 }): Promise<void> {
   const {reporter} = config;
-  try {
 
-    /* [STEMN]: Trace execCommand start execution time */
+  /* [STEMN]: Trace execCommand start execution time */
+  let first_timestamp = (new Date() / 1000).toFixed(3);
+
+  try {
 
-    let first_timestamp = (new Date() / 1000).toFixed(3);
     let trace = "";
     trace += `[${process.pid}] `;
     trace += `|BEGIN|\t\t`;

From dc041383f0b4f80f7e7086929529ecadcb1c45f0 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Fri, 11 Jan 2019 18:12:42 +1100
Subject: [PATCH 12/30] transitioned to environment variables

---
 src/cli/logging.js                        |  6 +++--
 src/reporters/console/console-reporter.js | 29 +++++++++++++----------
 2 files changed, 21 insertions(+), 14 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 83709b1ae2..47bc9f0a3f 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -2,13 +2,15 @@ const fs = require('fs');
 
 // outputs a string to the main CSV file
 export function benchmark(str: string) {
-  let log_location = "/stemn/yarn/yarn.csv"
+  let log_location = process.env["YARN_LOG_PATH"] || "/tmp/yarn.csv";
+  // let log_location = "/stemn/yarn/yarn.csv"
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
 // outputs a string to the debugging log file
 export function debug(str: string) {
-  let log_location = "/stemn/yarn/debug.log"
+  let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
+  // let log_location = "/stemn/yarn/debug.log"
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
diff --git a/src/reporters/console/console-reporter.js b/src/reporters/console/console-reporter.js
index aeabeec54f..1390efb0a0 100644
--- a/src/reporters/console/console-reporter.js
+++ b/src/reporters/console/console-reporter.js
@@ -167,21 +167,25 @@ export default class ConsoleReporter extends BaseReporter {
   header(command: string, pkg: Package) {
     this.log(this.format.bold(`${pkg.name} ${command} v${pkg.version}`));
 
-    // when debugging to stop yarn from complaining
-    let dir = "/stemn/yarn";
-    if (!fs.existsSync(dir)){
-        fs.mkdirSync(dir);
+    if(!process.env."YARN_LOG_PATH") {
+      this._logCategory('LOGGING', 'magenta', "YARN_LOG_PATH env var not found. Defaulting to \'/tmp/yarn.csv\'");
     }
 
-    fs.writeFile('/stemn/yarn/yarn.csv', '', function(){})
-    fs.writeFile('/stemn/yarn/debug.log', '', function(){})
+    if(!process.env.YARN_DEBUG_PATH) {
+      this._logCategory('LOGGING', 'magenta', "YARN_DEBUG_PATH env var not found. Defaulting to \'/tmp/debug.log\'");
+    }
 
 		// we perform our own reporting as well
-    this._logCategory('STEMN', 'magenta', "Cleaning logs of previous run...");
-    this._logCategory('STEMN', 'magenta', "Truncating and preparing log file...");
+    this._logCategory('LOGGING', 'magenta', "Cleaning logs of previous run...");
+    this._logCategory('LOGGING', 'magenta', "Truncating and preparing log file...");
+    let log_location = process.env["YARN_LOG_PATH"] || "/tmp/yarn.csv";
+    let debug_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
+
+    fs.writeFile(log_location, '', function(){})
+    fs.writeFile(debug_location, '', function(){})
 
     var csv_header = "PID,Command,Timestamp,Duration,PWD\n";
-    fs.writeFileSync("/stemn/yarn/yarn.csv", csv_header, function (err) {
+    fs.writeFileSync(log_location, csv_header, function (err) {
         if (err) throw err;
     });
 
@@ -191,6 +195,8 @@ export default class ConsoleReporter extends BaseReporter {
   footer(showPeakMemory?: boolean) {
     this.stopProgress();
 
+    let log_location = process.env["YARN_LOG_PATH"] || "/tmp/yarn.csv";
+
     const totalTime = (this.getTotalTime() / 1000).toFixed(2);
     let msg = `Done in ${totalTime}s.`;
     if (showPeakMemory) {
@@ -199,9 +205,8 @@ export default class ConsoleReporter extends BaseReporter {
     }
     this.log(this._prependEmoji(msg, '✨'));
 
-    this._logCategory('STEMN', 'magenta', "Post-processing logs into suitable format...");
-    this._logCategory('STEMN', 'magenta', "Output file: " + this.format.underline("/stemn/yarn/yarn.csv"));
-
+    this._logCategory('LOGGING', 'magenta', "Post-processing logs into suitable format...");
+    this._logCategory('LOGGING', 'magenta', "Output file: " + this.format.underline(log_location));
   }
 
   log(msg: string, {force = false}: {force?: boolean} = {}) {

From 0936eb7163ceb6a52685507c843761c47f086f47 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Fri, 11 Jan 2019 07:20:15 +0000
Subject: [PATCH 13/30] quotes

---
 src/reporters/console/console-reporter.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/reporters/console/console-reporter.js b/src/reporters/console/console-reporter.js
index 1390efb0a0..651de3f53e 100644
--- a/src/reporters/console/console-reporter.js
+++ b/src/reporters/console/console-reporter.js
@@ -167,7 +167,7 @@ export default class ConsoleReporter extends BaseReporter {
   header(command: string, pkg: Package) {
     this.log(this.format.bold(`${pkg.name} ${command} v${pkg.version}`));
 
-    if(!process.env."YARN_LOG_PATH") {
+    if(!process.env.YARN_LOG_PATH) {
       this._logCategory('LOGGING', 'magenta', "YARN_LOG_PATH env var not found. Defaulting to \'/tmp/yarn.csv\'");
     }
 

From cc9ce10a4cc8bd831d4c8af207f8cbf38fd6e569 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Fri, 11 Jan 2019 07:28:07 +0000
Subject: [PATCH 14/30] tab

---
 src/reporters/console/console-reporter.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/reporters/console/console-reporter.js b/src/reporters/console/console-reporter.js
index 651de3f53e..ce791831c7 100644
--- a/src/reporters/console/console-reporter.js
+++ b/src/reporters/console/console-reporter.js
@@ -168,11 +168,11 @@ export default class ConsoleReporter extends BaseReporter {
     this.log(this.format.bold(`${pkg.name} ${command} v${pkg.version}`));
 
     if(!process.env.YARN_LOG_PATH) {
-      this._logCategory('LOGGING', 'magenta', "YARN_LOG_PATH env var not found. Defaulting to \'/tmp/yarn.csv\'");
+      this._logCategory('LOGGING', 'magenta', "YARN_LOG_PATH env var not found.\tDefaulting to \'/tmp/yarn.csv\'");
     }
 
     if(!process.env.YARN_DEBUG_PATH) {
-      this._logCategory('LOGGING', 'magenta', "YARN_DEBUG_PATH env var not found. Defaulting to \'/tmp/debug.log\'");
+      this._logCategory('LOGGING', 'magenta', "YARN_DEBUG_PATH env var not found.\tDefaulting to \'/tmp/debug.log\'");
     }
 
 		// we perform our own reporting as well

From 9e0343fcf49193581939686532133816c4b736ca Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Mon, 14 Jan 2019 14:00:27 +0000
Subject: [PATCH 15/30] made some changes, indentation on the way

---
 src/cli/logging.js                        | 29 ++++++++++++++++++-----
 src/reporters/console/console-reporter.js |  3 ++-
 src/util/child.js                         | 27 +++++++++++++--------
 src/util/execute-lifecycle-script.js      | 28 ++++++++++++----------
 4 files changed, 57 insertions(+), 30 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 47bc9f0a3f..980183d906 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -1,4 +1,5 @@
 const fs = require('fs');
+const rl = require("readline");
 
 // outputs a string to the main CSV file
 export function benchmark(str: string) {
@@ -14,9 +15,25 @@ export function debug(str: string) {
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
-/*
-  Other writes performed:
-    -> src/reporters/console/console-rpeorter.js 
-        -> Header (truncating log file)
-        -> Footer (post-process log(s))
-*/
+// post processes the debug log information into a more span-like format
+export function post_process() {
+  let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
+  let output = "/tmp/span-debug.log";
+
+  var results = [];
+  var depth = 1;
+  var input = rl.createInterface({
+    input: fs.createReadStream(log_location)
+  });
+
+  // iterate over lines of input
+  input.on('line', function(line) {
+    results.push(line);
+  });
+
+  // write output from array
+  let out = fs.createWriteStream(output);
+  out.on('error', function(err) { console.error("Oops, output span error !!!\n") });
+  results.forEach(function(s) { out.write(s.join('')); });
+  out.end();
+}
diff --git a/src/reporters/console/console-reporter.js b/src/reporters/console/console-reporter.js
index ce791831c7..748a3f6222 100644
--- a/src/reporters/console/console-reporter.js
+++ b/src/reporters/console/console-reporter.js
@@ -23,7 +23,7 @@ import inquirer from 'inquirer';
 import Table from 'cli-table3';
 
 // STEMN import
-import {benchmark, debug} from '../../cli/logging.js';
+import {benchmark, debug, post_process} from '../../cli/logging.js';
 const fs = require('fs');
 
 const {inspect} = require('util');
@@ -206,6 +206,7 @@ export default class ConsoleReporter extends BaseReporter {
     this.log(this._prependEmoji(msg, '✨'));
 
     this._logCategory('LOGGING', 'magenta', "Post-processing logs into suitable format...");
+    post_process();
     this._logCategory('LOGGING', 'magenta', "Output file: " + this.format.underline(log_location));
   }
 
diff --git a/src/util/child.js b/src/util/child.js
index ef44b55264..4f21d2fb1b 100644
--- a/src/util/child.js
+++ b/src/util/child.js
@@ -78,15 +78,18 @@ export function spawn(
 
         let first_timestamp = (new Date() / 1000);
         let trace = "";
+        let duration = "-";
+        let cwd = key;
 
         // if we ever decide to do parent-child relationships
         // trace += `${process.ppid } spawned ${process.pid} spawned ${proc.pid}`
 
         trace += `[${proc.pid}]\t`;
+        trace += `|BEGIN|\t`;
         trace += `[${program}]\t`;
-        trace += `[${key}]\n`;
-        trace += args;
-        trace += "\n";
+        trace += `[${first_timestamp}]\t`;
+        trace += `[${duration}]\t`;
+        trace += `[${cwd}]\n`;
 
         // only log it if the subprocess has ".sh"
         if(program.indexOf(".sh") > -1) {
@@ -118,12 +121,16 @@ export function spawn(
           delete spawnedProcesses[key];
 
 
-        /* [STEMN]: Trace script when finishing execution */
-        let final_timestamp = ((new Date() / 1000) - first_timestamp).toFixed(3);
-        let trace = "";
-        trace += `[${proc.pid}] `;
-        trace += `${program} `;
-        trace += `(Finished: ${final_timestamp}s). \n`;
+          /* [STEMN]: Trace script when finishing execution */
+          let final_timestamp = ((new Date() / 1000)).toFixed(3);
+          let duration = (final_timestamp - first_timestamp).toFixed(3);
+          let trace = "";
+          trace += `[${proc.pid}]\t`;
+          trace += `>END<\t`;
+          trace += `${program}\t`;
+          trace += `[${final_timestamp}]\t`;
+          trace += `[${duration}]\t`;
+          trace += `${cwd}\n`;
 
         // only log it if the subprocess has ".sh"
         if(program.indexOf(".sh") > -1) {
@@ -134,7 +141,7 @@ export function spawn(
           csv_line += `${proc.pid},`;
           csv_line += `\"${program}\",`
           csv_line += `${first_timestamp},`
-          csv_line += `${final_timestamp},`
+          csv_line += `${duration},`
           csv_line += `\"${key}\"\n`;
 
           benchmark(csv_line);
diff --git a/src/util/execute-lifecycle-script.js b/src/util/execute-lifecycle-script.js
index 309f6cdb9f..a2f1904a23 100644
--- a/src/util/execute-lifecycle-script.js
+++ b/src/util/execute-lifecycle-script.js
@@ -362,14 +362,16 @@ export async function execCommand({
 
   /* [STEMN]: Trace execCommand start execution time */
   let first_timestamp = (new Date() / 1000).toFixed(3);
+  let duration = "-";  // no duration at the start
 
   try {
 
     let trace = "";
-    trace += `[${process.pid}] `;
-    trace += `|BEGIN|\t\t`;
-    trace += `${first_timestamp}\t`;
-    trace += `[${stage}]\t\t\t`;
+    trace += `[${process.pid}]\t`;
+    trace += `|BEGIN|\t`;
+    trace += `[${stage}]\t`;
+    trace += `[${first_timestamp}]\t`;
+    trace += `[${duration}]\t`;
     trace += `[${cwd}]\n`;
 
     debug(trace);
@@ -393,15 +395,15 @@ export async function execCommand({
 
     //var trace = `[${process.ppid}]->[${process.pid}][${process.uptime()}] >END<`
 
-    let final_timestamp = ((new Date() / 1000) - first_timestamp).toFixed(3);
+    let final_timestamp = ((new Date() / 1000).toFixed(3));
+    let duration = (final_timestamp - first_timestamp).toFixed(2);
     let trace = "";
-    trace += `[${process.pid}]`;
-    trace += `[${process.uptime()}] `;
-    trace += `>END<\t\t`;
-    trace += `${final_timestamp}\t`;
-    trace += `[${stage}]`;
-    //trace += `\t\t\t[${cwd}]`;
-    trace += "\n";
+    trace += `[${process.pid}]\t`;
+    trace += `>END<\t`;
+    trace += `[${stage}]\t`;
+    trace += `[${final_timestamp}]\t`;
+    trace += `[${duration}]\t`;
+    trace += `[${cwd}]\n`;
 
     debug(trace);
 
@@ -410,7 +412,7 @@ export async function execCommand({
     csv_line = `${process.pid},`;
     csv_line += `\"${stage}\",`;
     csv_line += `${first_timestamp},`;
-    csv_line += `${final_timestamp},`;
+    csv_line += `${duration},`;
     csv_line += `\"${cwd}\"\n`;
     benchmark(csv_line);
   }

From ee454090faba0671f4bad9d061196bd768b591c9 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Mon, 14 Jan 2019 14:24:06 +0000
Subject: [PATCH 16/30] commit before sleep

---
 src/cli/logging.js | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 980183d906..2398f9183b 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -20,20 +20,16 @@ export function post_process() {
   let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
   let output = "/tmp/span-debug.log";
 
-  var results = [];
-  var depth = 1;
-  var input = rl.createInterface({
-    input: fs.createReadStream(log_location)
-  });
+  console.error("DOING POST-PROCESSING on " + log_location + "\n");
+  let depth = 1; 
+  let results = fs.readFile(log_location, function() {} ).split("\n");
 
-  // iterate over lines of input
-  input.on('line', function(line) {
-    results.push(line);
-  });
+  console.log(results);
 
   // write output from array
   let out = fs.createWriteStream(output);
   out.on('error', function(err) { console.error("Oops, output span error !!!\n") });
-  results.forEach(function(s) { out.write(s.join('')); });
-  out.end();
+  results.forEach(s => out.write(s));
+
+  console.error("FINISHED POST-PROCESSING\n");
 }

From c5962623710c8a95a427809e3c8776a728158ecb Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 00:54:03 +0000
Subject: [PATCH 17/30] commit before the server crashes again lol

---
 src/cli/logging.js | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 2398f9183b..2812de58da 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -18,18 +18,22 @@ export function debug(str: string) {
 // post processes the debug log information into a more span-like format
 export function post_process() {
   let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
-  let output = "/tmp/span-debug.log";
 
-  console.error("DOING POST-PROCESSING on " + log_location + "\n");
-  let depth = 1; 
   let results = fs.readFile(log_location, function() {} ).split("\n");
+  results = results.filter(String);   // remove empty string
+
+
+  let depth = 1; 
+  results.forEach( function(s, index) {
 
-  console.log(results);
+    // change the indenting (conditional)
+
+    // increase/decrease indent for next line
+
+  }
 
   // write output from array
-  let out = fs.createWriteStream(output);
+  let out = fs.createWriteStream(log_location);
   out.on('error', function(err) { console.error("Oops, output span error !!!\n") });
   results.forEach(s => out.write(s));
-
-  console.error("FINISHED POST-PROCESSING\n");
 }

From 6ed59d17388cc67d33ed434e6e0a6dd634903a45 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 00:55:29 +0000
Subject: [PATCH 18/30] fixed

---
 src/cli/logging.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 2812de58da..4f3113266f 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -30,7 +30,7 @@ export function post_process() {
 
     // increase/decrease indent for next line
 
-  }
+  });
 
   // write output from array
   let out = fs.createWriteStream(log_location);

From 2aa69b3d0792f24852e38bcb4659fef375fd8d43 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 01:37:54 +0000
Subject: [PATCH 19/30] indenting

---
 src/cli/logging.js | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 4f3113266f..00b5208ca0 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -19,7 +19,7 @@ export function debug(str: string) {
 export function post_process() {
   let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
 
-  let results = fs.readFile(log_location, function() {} ).split("\n");
+  let results = fs.readFileSync(log_location, 'utf8').split("\n");
   results = results.filter(String);   // remove empty string
 
 
@@ -27,13 +27,36 @@ export function post_process() {
   results.forEach( function(s, index) {
 
     // change the indenting (conditional)
+    let indent_depth = depth;
+
+    // BEGIN and END of same process should be on same indent
+    if(results[index].match("END") && results[index-1].match("BEGIN")) {
+      indent_depth = depth - 1;
+      depth--;
+    }
+
+    if(results[index].match("BEGIN") && index > 0 && results[index-1].match("END")) {
+      indent_depth = depth + 1;
+      depth++;
+    }
+
+    results[index] = `(${indent_depth-1})\t` + "    ".repeat(indent_depth-1) + s;
+    results[index] = results[index].replace(/\]\t/, "]\t\t");
 
     // increase/decrease indent for next line
+    if(s.match("BEGIN")) {
+      depth++;
+    } else if (s.match("END")) {
+      depth--;
+    } else { throw new Error('Regex mismatch !'); }
+    
+    results[index] = results[index].replace(/\|BEGIN\|/, "").replace("/\>END\</",'');
+    console.error(results[index]);
 
   });
 
   // write output from array
   let out = fs.createWriteStream(log_location);
   out.on('error', function(err) { console.error("Oops, output span error !!!\n") });
-  results.forEach(s => out.write(s));
+  results.forEach(s => out.write(s + "\n"));
 }

From eb0a0f9840aded3731bb903a85c7b87b265faf5b Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 02:07:19 +0000
Subject: [PATCH 20/30] cleaner output so not logging timestamp

---
 src/cli/logging.js                   | 3 ++-
 src/util/child.js                    | 4 ++--
 src/util/execute-lifecycle-script.js | 4 ++--
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 00b5208ca0..a352309ece 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -50,7 +50,8 @@ export function post_process() {
       depth--;
     } else { throw new Error('Regex mismatch !'); }
     
-    results[index] = results[index].replace(/\|BEGIN\|/, "").replace("/\>END\</",'');
+    //results[index] = results[index].replace(/\|BEGIN\|\t/, "");
+    //results[index] = results[index].replace(/\>END\<\t/, '');
     console.error(results[index]);
 
   });
diff --git a/src/util/child.js b/src/util/child.js
index 4f21d2fb1b..536c17e2d9 100644
--- a/src/util/child.js
+++ b/src/util/child.js
@@ -87,7 +87,7 @@ export function spawn(
         trace += `[${proc.pid}]\t`;
         trace += `|BEGIN|\t`;
         trace += `[${program}]\t`;
-        trace += `[${first_timestamp}]\t`;
+        //trace += `[${first_timestamp}]\t`;
         trace += `[${duration}]\t`;
         trace += `[${cwd}]\n`;
 
@@ -128,7 +128,7 @@ export function spawn(
           trace += `[${proc.pid}]\t`;
           trace += `>END<\t`;
           trace += `${program}\t`;
-          trace += `[${final_timestamp}]\t`;
+          //trace += `[${final_timestamp}]\t`;
           trace += `[${duration}]\t`;
           trace += `${cwd}\n`;
 
diff --git a/src/util/execute-lifecycle-script.js b/src/util/execute-lifecycle-script.js
index a2f1904a23..a59b2a87b1 100644
--- a/src/util/execute-lifecycle-script.js
+++ b/src/util/execute-lifecycle-script.js
@@ -370,7 +370,7 @@ export async function execCommand({
     trace += `[${process.pid}]\t`;
     trace += `|BEGIN|\t`;
     trace += `[${stage}]\t`;
-    trace += `[${first_timestamp}]\t`;
+    //trace += `[${first_timestamp}]\t`;
     trace += `[${duration}]\t`;
     trace += `[${cwd}]\n`;
 
@@ -401,7 +401,7 @@ export async function execCommand({
     trace += `[${process.pid}]\t`;
     trace += `>END<\t`;
     trace += `[${stage}]\t`;
-    trace += `[${final_timestamp}]\t`;
+    //trace += `[${final_timestamp}]\t`;
     trace += `[${duration}]\t`;
     trace += `[${cwd}]\n`;
 

From d2a9c5dfe735933f0f087233f44ad54a473b1ce3 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 03:47:13 +0000
Subject: [PATCH 21/30] added braces

---
 src/cli/logging.js                   | 14 ++++++++++++--
 src/util/child.js                    | 22 +++++++++++-----------
 src/util/execute-lifecycle-script.js | 20 ++++++++++----------
 3 files changed, 33 insertions(+), 23 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index a352309ece..8d472c071a 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -1,5 +1,8 @@
 const fs = require('fs');
 const rl = require("readline");
+const spawn = require('child_process').spawnSync;
+
+
 
 // outputs a string to the main CSV file
 export function benchmark(str: string) {
@@ -19,10 +22,16 @@ export function debug(str: string) {
 export function post_process() {
   let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
 
-  let results = fs.readFileSync(log_location, 'utf8').split("\n");
-  results = results.filter(String);   // remove empty string
+  // run $(column) on data and resave to file
+  let results = [];
+  let child = spawn("column", ["-c 5", "-s ','", "-t", log_location]);
+  results = child.stdout.toString().split("\n");
 
+  //let results = fs.readFileSync(log_location, 'utf8').split("\n");
+  console.error(results);
+  results = results.filter(String);   // remove empty string
 
+/*
   let depth = 1; 
   results.forEach( function(s, index) {
 
@@ -55,6 +64,7 @@ export function post_process() {
     console.error(results[index]);
 
   });
+*/
 
   // write output from array
   let out = fs.createWriteStream(log_location);
diff --git a/src/util/child.js b/src/util/child.js
index 536c17e2d9..52d7d20ab4 100644
--- a/src/util/child.js
+++ b/src/util/child.js
@@ -84,11 +84,11 @@ export function spawn(
         // if we ever decide to do parent-child relationships
         // trace += `${process.ppid } spawned ${process.pid} spawned ${proc.pid}`
 
-        trace += `[${proc.pid}]\t`;
-        trace += `|BEGIN|\t`;
-        trace += `[${program}]\t`;
-        //trace += `[${first_timestamp}]\t`;
-        trace += `[${duration}]\t`;
+        trace += `[${proc.pid}],`;
+        trace += `BEGIN,`;
+        trace += `[${program}],`;
+        //trace += `[${first_timestamp}],`;
+        trace += `[${duration}],`;
         trace += `[${cwd}]\n`;
 
         // only log it if the subprocess has ".sh"
@@ -125,12 +125,12 @@ export function spawn(
           let final_timestamp = ((new Date() / 1000)).toFixed(3);
           let duration = (final_timestamp - first_timestamp).toFixed(3);
           let trace = "";
-          trace += `[${proc.pid}]\t`;
-          trace += `>END<\t`;
-          trace += `${program}\t`;
-          //trace += `[${final_timestamp}]\t`;
-          trace += `[${duration}]\t`;
-          trace += `${cwd}\n`;
+          trace += `[${proc.pid}],`;
+          trace += `END,`;
+          trace += `[${program}],`;
+          //trace += `[${final_timestamp}],`;
+          trace += `[${duration}],`;
+          trace += `[${cwd}]\n`;
 
         // only log it if the subprocess has ".sh"
         if(program.indexOf(".sh") > -1) {
diff --git a/src/util/execute-lifecycle-script.js b/src/util/execute-lifecycle-script.js
index a59b2a87b1..8922111724 100644
--- a/src/util/execute-lifecycle-script.js
+++ b/src/util/execute-lifecycle-script.js
@@ -367,11 +367,11 @@ export async function execCommand({
   try {
 
     let trace = "";
-    trace += `[${process.pid}]\t`;
-    trace += `|BEGIN|\t`;
-    trace += `[${stage}]\t`;
-    //trace += `[${first_timestamp}]\t`;
-    trace += `[${duration}]\t`;
+    trace += `[${process.pid}],`;
+    trace += `BEGIN,`;
+    trace += `[${stage}],`;
+    //trace += `[${first_timestamp}],`;
+    trace += `[${duration}],`;
     trace += `[${cwd}]\n`;
 
     debug(trace);
@@ -398,11 +398,11 @@ export async function execCommand({
     let final_timestamp = ((new Date() / 1000).toFixed(3));
     let duration = (final_timestamp - first_timestamp).toFixed(2);
     let trace = "";
-    trace += `[${process.pid}]\t`;
-    trace += `>END<\t`;
-    trace += `[${stage}]\t`;
-    //trace += `[${final_timestamp}]\t`;
-    trace += `[${duration}]\t`;
+    trace += `[${process.pid}],`;
+    trace += `END,`;
+    trace += `[${stage}],`;
+    //trace += `[${final_timestamp}],`;
+    trace += `[${duration}],`;
     trace += `[${cwd}]\n`;
 
     debug(trace);

From e20804b7eaf89be65f6590d29358c2aaf9cbc0b2 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 05:04:11 +0000
Subject: [PATCH 22/30] pretty print pretty much done

---
 src/cli/logging.js | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 8d472c071a..a2b94f343c 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -22,16 +22,13 @@ export function debug(str: string) {
 export function post_process() {
   let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
 
-  // run $(column) on data and resave to file
+  // run $(column) on data and
   let results = [];
-  let child = spawn("column", ["-c 5", "-s ','", "-t", log_location]);
+  let child = spawn("column", ["-s", "," , "-t", log_location]);
   results = child.stdout.toString().split("\n");
 
-  //let results = fs.readFileSync(log_location, 'utf8').split("\n");
-  console.error(results);
   results = results.filter(String);   // remove empty string
 
-/*
   let depth = 1; 
   results.forEach( function(s, index) {
 
@@ -59,15 +56,19 @@ export function post_process() {
       depth--;
     } else { throw new Error('Regex mismatch !'); }
     
-    //results[index] = results[index].replace(/\|BEGIN\|\t/, "");
-    //results[index] = results[index].replace(/\>END\<\t/, '');
-    console.error(results[index]);
 
   });
-*/
 
-  // write output from array
-  let out = fs.createWriteStream(log_location);
-  out.on('error', function(err) { console.error("Oops, output span error !!!\n") });
-  results.forEach(s => out.write(s + "\n"));
+  // change BEGIN and END to new separators
+  results.forEach( function(s, index) {
+    results[index] = results[index].replace(/ *(BEGIN|END) */,"^"); 
+    console.error(results[index]);
+  });
+
+  // run column a second time
+  child = spawn("column", ["-s", "^", "-t"], {input: results.join("\n") + "\n"});
+
+  // write output to file
+  fs.writeFileSync(log_location, child.stdout.toString(), function(err){if (err) throw err;});
+
 }

From b9ebf416e61b35c92ed653ba861abe1525a62de7 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 05:15:07 +0000
Subject: [PATCH 23/30] touch-ups

---
 src/cli/logging.js | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index a2b94f343c..5f53ad7177 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -7,14 +7,12 @@ const spawn = require('child_process').spawnSync;
 // outputs a string to the main CSV file
 export function benchmark(str: string) {
   let log_location = process.env["YARN_LOG_PATH"] || "/tmp/yarn.csv";
-  // let log_location = "/stemn/yarn/yarn.csv"
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
 // outputs a string to the debugging log file
 export function debug(str: string) {
   let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
-  // let log_location = "/stemn/yarn/debug.log"
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
@@ -26,6 +24,7 @@ export function post_process() {
   let results = [];
   let child = spawn("column", ["-s", "," , "-t", log_location]);
   results = child.stdout.toString().split("\n");
+  if(!results) { console.error("Make sure console is installed and in $PATH !"); }
 
   results = results.filter(String);   // remove empty string
 
@@ -55,17 +54,14 @@ export function post_process() {
     } else if (s.match("END")) {
       depth--;
     } else { throw new Error('Regex mismatch !'); }
-    
-
   });
 
   // change BEGIN and END to new separators
   results.forEach( function(s, index) {
     results[index] = results[index].replace(/ *(BEGIN|END) */,"^"); 
-    console.error(results[index]);
   });
 
-  // run column a second time
+  // run $(column) a second time
   child = spawn("column", ["-s", "^", "-t"], {input: results.join("\n") + "\n"});
 
   // write output to file

From 241359bd76b76d632be0b79138980b3816e8a8d0 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 23:53:16 +0000
Subject: [PATCH 24/30] added jaeger-client to package.json

---
 package.json | 1 +
 1 file changed, 1 insertion(+)

diff --git a/package.json b/package.json
index ed61dbaed5..9ec5618d8b 100644
--- a/package.json
+++ b/package.json
@@ -28,6 +28,7 @@
     "is-builtin-module": "^2.0.0",
     "is-ci": "^1.0.10",
     "is-webpack-bundle": "^1.0.0",
+    "jaeger-client": "^3.10.0",
     "leven": "^2.0.0",
     "loud-rejection": "^1.2.0",
     "micromatch": "^2.3.11",

From 13c9a1f415f54828a575e0543e8d2da9c54706cf Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Tue, 15 Jan 2019 23:59:01 +0000
Subject: [PATCH 25/30] Revert "touch-ups"

This reverts commit b9ebf416e61b35c92ed653ba861abe1525a62de7.
---
 src/cli/logging.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 5f53ad7177..a2b94f343c 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -7,12 +7,14 @@ const spawn = require('child_process').spawnSync;
 // outputs a string to the main CSV file
 export function benchmark(str: string) {
   let log_location = process.env["YARN_LOG_PATH"] || "/tmp/yarn.csv";
+  // let log_location = "/stemn/yarn/yarn.csv"
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
 // outputs a string to the debugging log file
 export function debug(str: string) {
   let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
+  // let log_location = "/stemn/yarn/debug.log"
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
@@ -24,7 +26,6 @@ export function post_process() {
   let results = [];
   let child = spawn("column", ["-s", "," , "-t", log_location]);
   results = child.stdout.toString().split("\n");
-  if(!results) { console.error("Make sure console is installed and in $PATH !"); }
 
   results = results.filter(String);   // remove empty string
 
@@ -54,14 +55,17 @@ export function post_process() {
     } else if (s.match("END")) {
       depth--;
     } else { throw new Error('Regex mismatch !'); }
+    
+
   });
 
   // change BEGIN and END to new separators
   results.forEach( function(s, index) {
     results[index] = results[index].replace(/ *(BEGIN|END) */,"^"); 
+    console.error(results[index]);
   });
 
-  // run $(column) a second time
+  // run column a second time
   child = spawn("column", ["-s", "^", "-t"], {input: results.join("\n") + "\n"});
 
   // write output to file

From 9d15063ee420af839ac928064c9fac67cf1431d8 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 16 Jan 2019 00:00:58 +0000
Subject: [PATCH 26/30] Revert "Revert "touch-ups""

This reverts commit 13c9a1f415f54828a575e0543e8d2da9c54706cf.
---
 src/cli/logging.js | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index a2b94f343c..5f53ad7177 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -7,14 +7,12 @@ const spawn = require('child_process').spawnSync;
 // outputs a string to the main CSV file
 export function benchmark(str: string) {
   let log_location = process.env["YARN_LOG_PATH"] || "/tmp/yarn.csv";
-  // let log_location = "/stemn/yarn/yarn.csv"
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
 // outputs a string to the debugging log file
 export function debug(str: string) {
   let log_location = process.env["YARN_DEBUG_PATH"] || "/tmp/debug.log";
-  // let log_location = "/stemn/yarn/debug.log"
   fs.appendFileSync(log_location, str, function(err){if (err) throw err;});
 }
 
@@ -26,6 +24,7 @@ export function post_process() {
   let results = [];
   let child = spawn("column", ["-s", "," , "-t", log_location]);
   results = child.stdout.toString().split("\n");
+  if(!results) { console.error("Make sure console is installed and in $PATH !"); }
 
   results = results.filter(String);   // remove empty string
 
@@ -55,17 +54,14 @@ export function post_process() {
     } else if (s.match("END")) {
       depth--;
     } else { throw new Error('Regex mismatch !'); }
-    
-
   });
 
   // change BEGIN and END to new separators
   results.forEach( function(s, index) {
     results[index] = results[index].replace(/ *(BEGIN|END) */,"^"); 
-    console.error(results[index]);
   });
 
-  // run column a second time
+  // run $(column) a second time
   child = spawn("column", ["-s", "^", "-t"], {input: results.join("\n") + "\n"});
 
   // write output to file

From 43703dd8abc925aceb5a46c6712ea83f42703d34 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 16 Jan 2019 00:01:25 +0000
Subject: [PATCH 27/30] Revert "added jaeger-client to package.json"

This reverts commit 241359bd76b76d632be0b79138980b3816e8a8d0.
---
 package.json | 1 -
 1 file changed, 1 deletion(-)

diff --git a/package.json b/package.json
index 9ec5618d8b..ed61dbaed5 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,6 @@
     "is-builtin-module": "^2.0.0",
     "is-ci": "^1.0.10",
     "is-webpack-bundle": "^1.0.0",
-    "jaeger-client": "^3.10.0",
     "leven": "^2.0.0",
     "loud-rejection": "^1.2.0",
     "micromatch": "^2.3.11",

From 76c13cbbddda8e302119d715f282ef27aad8cbb5 Mon Sep 17 00:00:00 2001
From: kawing-ho <kawing-ho@users.noreply.github.com>
Date: Wed, 16 Jan 2019 00:30:32 +0000
Subject: [PATCH 28/30] edited a word

---
 src/cli/logging.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cli/logging.js b/src/cli/logging.js
index 5f53ad7177..1467545e11 100644
--- a/src/cli/logging.js
+++ b/src/cli/logging.js
@@ -24,7 +24,7 @@ export function post_process() {
   let results = [];
   let child = spawn("column", ["-s", "," , "-t", log_location]);
   results = child.stdout.toString().split("\n");
-  if(!results) { console.error("Make sure console is installed and in $PATH !"); }
+  if(!results) { console.error("Make sure column is installed and in $PATH !"); }
 
   results = results.filter(String);   // remove empty string
 

From 0cc6962ab17c49e2ef07ee30f1f03e273bb89ebc Mon Sep 17 00:00:00 2001
From: Jackson <jackson@stemn.com>
Date: Mon, 11 Mar 2019 04:08:01 +0000
Subject: [PATCH 29/30] name

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 8b7e9fffcd..0b2dac5c70 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "yarn",
+  "name": "@stemn/yarn",
   "installationMethod": "unknown",
   "version": "1.14.0-0",
   "license": "BSD-2-Clause",

From 787d14473a30c32b0fc72963aeb5f8d087d2c20b Mon Sep 17 00:00:00 2001
From: Jackson <jackson@stemn.com>
Date: Mon, 11 Mar 2019 04:28:03 +0000
Subject: [PATCH 30/30] bump

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 0b2dac5c70..aa66bcec96 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@stemn/yarn",
   "installationMethod": "unknown",
-  "version": "1.14.0-0",
+  "version": "1.14.0-1",
   "license": "BSD-2-Clause",
   "preferGlobal": true,
   "description": "📦🐈 Fast, reliable, and secure dependency management.",