From 15992970bc9d3eec402f6d85e40236e3095f0fc0 Mon Sep 17 00:00:00 2001
From: HampusM <hampus@hampusmat.com>
Date: Sat, 17 Apr 2021 22:45:12 +0200
Subject: Finished repos api endpoint, created complete repos page & removed
 dist dir

---
 api/git.js | 112 +++++++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 86 insertions(+), 26 deletions(-)

(limited to 'api/git.js')

diff --git a/api/git.js b/api/git.js
index b8d89c3..59f7371 100644
--- a/api/git.js
+++ b/api/git.js
@@ -1,12 +1,14 @@
 const { exec } = require("child_process");
+const { differenceInMilliseconds } = require('date-fns');
+const fs = require('fs');
 
-const log_format='{"hash": "%H", "author": "%an", "author_email": "%ae", "date": "%at", "subject": "%s"}'
+const log_format='{"hash": "%H", "author": "%an", "author_email": "%ae", "date": "%at", "subject": "%s"}';
 
-function getLog(path)
+function execGit(path, action , format, args = "")
 {
 	return new Promise((resolve) =>
 	{
-		exec(`git -C ${path} log --format=format:'${log_format}'`, (error, stdout, stderr) =>
+		exec(`git -C ${path} ${action} ${args} --format=format:'${format}'`, (error, stdout, stderr) =>
 		{
 			if(error) {
 				const no_such_fileor_dir = new RegExp(`cannot change to '${path.replace('/', "\/")}': No such file or directory\\n$`);
@@ -23,40 +25,98 @@ function getLog(path)
 				return;
 			}
 
-			const log = stdout.split('\n');
-			log.forEach((entry, index) => log[index] = JSON.parse(entry));
+			resolve({ "data": stdout });
+		});
+	});
+}
+
+async function getLog(path)
+{
+	let log = await execGit(path, "log", log_format);
+
+	if(!log["error"]) {
+		log["data"] = log["data"].split('\n');
+		log["data"].forEach((entry, index) => log["data"][index] = JSON.parse(entry));
+	}
+
+	return log;
+}
+
+function getOptimalDateDifference(difference)
+{
+	const time_values = {
+		"second": 1000,
+		"minute": 60000,
+		"hour": 3600000,
+		"day": 86400000,
+		"week": 604800000,
+		"month": 2629800000,
+		"year": 31557600000
+	};
+
+	let last;
+	for(const [key, value] of Object.entries(time_values)) {
+		if(difference > value) {
+			last = key;
+			continue;
+		}
+		break;
+	}
+
+	return `${Math.round(difference / time_values[last])} ${last}s`;
+}
+
+async function getTimeSinceLatestCommit(path)
+{
+	let commit_timestamp = (await execGit(path, "log", "%at", "-n 1"));
+
+	if(!commit_timestamp["error"]) {
+		commit_timestamp = commit_timestamp["data"] * 1000;
+
+		const commit_date = new Date(commit_timestamp);
+		const now_date = new Date();
+
+		const difference = getOptimalDateDifference(differenceInMilliseconds(now_date, commit_date));
+
+		return difference;
+	}
+	return commit_timestamp;
+}
 
-			resolve({ "data": log });
+function getRepoFile(base_dir, repo, file)
+{
+	return new Promise(resolve =>
+	{
+		fs.readFile(`${base_dir}/${repo}/${file}`, async (err, content) =>
+		{			
+			if(!err) {
+				resolve(content.toString().replaceAll('\n', ''));
+				return;
+			}
+			resolve("");
 		});
 	});
 }
 
-function getTimeSinceLatestCommit(path)
+function getBasicRepoInfo(base_dir, repo_dirs)
 {
 	return new Promise((resolve) =>
 	{
-		exec(`git -C ${path} log -n 1 --date=unix'`, (error, stdout, stderr) =>
+		let repos = {};
+		repo_dirs.forEach(async (repo, index, arr) =>
 		{
-			if(error) {
-				const no_such_fileor_dir = new RegExp(`cannot change to '${path.replace('/', "\/")}': No such file or directory\\n$`);
+			const desc = await getRepoFile(base_dir, repo, "description");
+			const owner = await getRepoFile(base_dir, repo, "owner");
+			const last_commit_date = await getTimeSinceLatestCommit(`${base_dir}/${repo}`);
 
-				if(no_such_fileor_dir.test(error.message)) {
-					resolve({ "error": 404 });
-					return;
-				}
-				resolve({ "error": error.message });
-				return;
-			}
-			if(stderr) {
-				resolve({ "error": "Failed to communicate with git!" });
-				return;
-			}
+			let repo_name = "";
+			repo_name = repo.slice(0, -4);
+			repos[repo_name] = { "description": desc, "owner": owner, "last_updated": last_commit_date };
 
-			const 
-
-			resolve({ "data": log });
-		});
+			if(index === 0) resolve(repos);
+		});	
 	});
 }
 
-module.exports.getLog = getLog;
\ No newline at end of file
+module.exports.getLog = getLog;
+module.exports.getBasicRepoInfo = getBasicRepoInfo;
\ No newline at end of file
-- 
cgit v1.2.3-18-g5258