š add an one way synchronization from github commits to google calendar and track your progress effortlessly.
npm install gcal-sync
Features ⢠Requirements ⢠Usage ⢠Development ⢠About
Add an one way synchronization from github commits to your google calendar and boost your time-tracking and productivity analysis.

This project was deeply inspired by this tool, and my main reason for creating this was to track my progress over my completed ticktick tasks, moving them to another calendar, which was not possible in the mentioned project at the time. After some time I also thought it would be a good idea to add github commits sync to google calendar.
> [!NOTE]
> After TickTick finally introduced two-way sync with Google Calendar, I decided to remove the one-way sync from gcal-sync. I believe it served its purpose well by providing a valuable solution for the community during the time when TickTick had not yet implemented this functionality, but moving forward it feels appropriate to transition to the built-in ticktick solution.
āļø sync your github commits to google calendar;
āļø option to send a daily summary notification of what gcalsync has done throughout the day;
āļø you can add a url link to run the sync function manually whenever you want.
The only thing you need to use this solution is a gmail/google account.
It basically sets a function to run in google apps scripts to run at every 5 minutes, and this function is responsable for:
- sync your github commits to google calendar;
- send you optional emails about session. daily changes, errors and new versions.
To effectively use this project, do the following steps:
Go to the google apps script and create a new project by clicking in the button showed in the next image.
1 - create a Google Apps Scripts (GAS) project
It would be a good idea to rename the project to something like "gcal-sync".

Click on the initial file, which is the rectangle-1 on the image. Replace the initial content present in the rectangle-2 with the gcal-sync code provided bellow. ā ļø Warning function getGcalSync(){ let gcalSync; if (useDevVersion){ return gcalSync; function install() { function uninstall() { function sync(){ try{ function doGet(reqParams) { const response = { try { return ContentService.createTextOutput(JSON.stringify(response)).setMimeType(ContentService.MimeType.JSON)
2 - setup the gcal-sync on GAS

Remember to update the configs object according to your data and needs.
function getConfigs() {
const configs = {
settings: {
sync_function: 'sync', // function name to run every x minutes
timezone_offset_correction: 0, // hour correction to match maybe a daylight saving difference (if you want the events 1 hour "before", then put -1)
update_frequency: 5, // wait time between sync checks (must be multiple of 5: 10, 15, etc)
skip_mode: false, // if set to true, it will skip every sync (useful for not messing up your data if any bug occurs repeatedly)
per_day_emails: {
time_to_send: '22:00', // time to email the summary
email_daily_summary: false, // email all the actions done in the day on the above time
email_new_gcal_sync_release: false, // check one time per day and email when a new gcal-sync version is released on the above time
},
per_sync_emails: {
email_errors: false, // email when some error occurs
email_session: false // email when any item was added, updated or removed from your gcal
}
},
github_sync: {
username: 'lucasvtiradentes', // github username
personal_token: '', // github token, required if you want to sync private repo commits
commits_configs: {
should_sync: true, // controls if the github commits sync should be done
commits_calendar: 'gh_commits', // google calendar to insert commits as events
ignored_repos: ['github-assets'], // ignored repositories string array: ['repo1', 'repo2']
parse_commit_emojis: true // parse string emojis (:tada:) to emojis (āØ)
}
}
};
return configs
}
const configs = getConfigs()
const useDevVersion = false
const GcalSync = getGcalSyncDev()
gcalSync = new GcalSync(configs);
} else {
const version = "2.1.3"
const gcalSyncContent = UrlFetchApp.fetch(https://cdn.jsdelivr.net/npm/gcal-sync@2.1.3).getContentText();
eval(gcalSyncContent)
gcalSync = new GcalSync(configs);
}
}
const gcalSync = getGcalSync();
gcalSync.install();
}
const gcalSync = getGcalSync();
gcalSync.uninstall();
}
const gcalSync = getGcalSync()
console.log(gcalSync.sync())
} catch(e){
gcalSync.handleError(e)
}
}
const gcalSync = getGcalSync()
sessionData: {},
logs: [],
error: null
}
response.sessionData = gcalSync.sync()
response.logs = gcalSync.getSessionLogs()
} catch (e){
response.error = e
gcalSync.handleError(e)
}
}
Go to the project settings by clicking on the first image rectangle. After that, check the option to show the Go back to the project files, and replace the content present in the
3 - allow the required google permissions
appsscript.json in our project, a file that manages the required google api access.


appsscript.json with the following code:
{
"timeZone": "Etc/GMT",
"dependencies": {
"enabledAdvancedServices": [
{
"userSymbol": "Calendar",
"serviceId": "calendar",
"version": "v3"
}
]
},
"oauthScopes": [
"https://www.googleapis.com/auth/script.scriptapp",
"https://www.googleapis.com/auth/script.external_request",
"https://www.googleapis.com/auth/calendar",
"https://www.googleapis.com/auth/tasks",
"https://www.googleapis.com/auth/script.send_mail",
"https://www.googleapis.com/auth/userinfo.email"
],
"exceptionLogging": "STACKDRIVER",
"runtimeVersion": "V8",
"webapp": {
"executeAs": "USER_DEPLOYING",
"access": "ANYONE_ANONYMOUS"
}
}
Just follow what the bellow image shows, which is to select the
4 - setup the gcal-sync to run automatically every x minutes
install function and run it.
After, a popup will appear asking your permission, and you'll have to accept it.

It will allow you to sync whenever you go to a generated link.
5 - deploy an api to manually run the sync function (optional)
Just do as the image shows.

- it is not necessary to generate a github token in order to sync commits, it is only required if you want to sync your contributions to private repos as well;
To update your gcal-sync instance and use the latest features, you just need to change the version number in the getGcalSync function, as it is shown bellow:
function getGcalSync(){
// ...
const version = "1.0.0" // update here to use the latest features
const content = UrlFetchApp.fetch(https://cdn.jsdelivr.net/npm/gcal-sync@${version}).getContentText();
// ...
}
So if your instance is running at version "1.0.0" and the latest is "3.6.1", just replace those numbers in the version variable.
It is a good practice to go to the dist folder everytime you update your instance to check if your files in GAS are the same as the new version; if they're not this may cause erros.
If you want to receive the daily emails, just go to the GAS respective project in the header dropdown menu select the uninstall function and then click on the Run button. By doing that, the GAS trigger responsable for running everyday the function will be deleted.
`` If you want to contribute to the project, fork the project, make the necessary changes, and to test your work on google apps scripts with do this: 1. run 2. after that, update the content of the if (useDevVersion) { now you can test your work really easy on production/GAS!
Instructions for development setup
To setup this project in your computer, run the following commands:bashClone this repository
$ git clone https://github.com/lucasvtiradentes/gcal-syncGo into the repository
$ cd gcal-syncInstall dependencies
$ npm install
`npm run build in order to generate the dist files. After that, create a new GAS file (ex: dev_gcal.gs) and paste the content of gcalsync_dev on this new GAS file.`getGcalSync as specified bellow:js``
function getGcalSync() {
// ...
const useDevVersion = true; // set this to true to use your gcal-sync version
const GcalSync = getGcalSyncDev(); // your work is here
}
// ...
}
This project uses the following thechnologies:
| Scope | Subject | Technologies |
|---|---|---|
| Main | Main | |
| Setup | Code linting | |
| Commit linting | alt="Gitmoji"/> | |
| Other |
- online-ics: online tool to view the content of ICS calendars;
- gas-ics-sync: A Google Apps Script for syncing ICS/ICAL files faster than the current Google Calendar speed. This was my main inspiration;
- esports-notifier: get an daily email whenever one of your favorite eSports team has a match at day in games such as csgo, valorant and rainbow six siege;
- twitch-notifier: get email notifications when _only your favorite_ twitch streamers go live.
This project is distributed under the terms of the MIT License Version 2.0. A complete version of the license is available in the LICENSE file in this repository. Any contribution made to this project will be licensed under the MIT License Version 2.0.