GitHub - create new file in Existing Repo with Apps Script

[Alan Wells]

Here is code to create a new file in an existing GitHub repository.

Settings:

function getMyGitHubInfo_(k) {
  var o;
 
  o = {
    userName:'put_your_GitHub_login_ID_here',//Your user name
  }
 
  if (k) {
    return o[k];
  } else {
    return o;
  }
}

function getHardCodedToken_() {
  var myOAuthToken;
 
  myOAuthToken = "put_your_git_hub_OAuth_token_here";//Put your Git Hub token here
  /*To manually create a token - Login to GitHub - Open Settings - go to Developer Settings -
    click Personal Access Tokens - Button - Generate new token - Fill in answers - get token -
    copy the token and paste it between the quotation marks in the setting for myOAuthToken -
    The token must be a string and have quotation marks at the beginning and end
  */
  return myOAuthToken;
}

Test function call:

function saveOneFileToA_Repo() {
  var repoName,parameters;
 
  repoName = 'test_Repo';//Enter the repo name here
 
  parameters = {};
 
  parameters.fileName = "AAA_Test_Create";
  parameters.repoName = repoName;
  parameters.commitDescription = 'Test Commit Description';
  parameters.fileContent = "This is line one\
  This is line two";
 
  parameters.branch = 'master';
 
  if (typeof parameters.fileContent === 'object') {
    parameters.fileContent = JSON.stringify(parameters.fileContent);
  }

  createNewFileInExistingRepo(parameters);
 
}

Code that does the request:

function createNewFileInExistingRepo(po) {
try{
  var data,encodeContent,myToken,options,payload,urlEnding,rslt,rspnsCode,apiBaseUrl,url,userPlusRepoName;
 
  /*
    https://developer.github.com/v3/repos/contents/#create-or-update-a-file
    PUT /repos/:owner/:repo/contents/:path - path must be replaced with the file name - owner is replaced
    //with your github user name and :repo is replaced with the repository name
   
    po.userName - The user name in the GitHub account
    po.commitDescription - The description of the commit
    po.fileName - The name of the file
    po.repoName - The name of the repository to put the file into
    po.fileContent - The data to go into the new file
    po.encode - encode the content
    po.branch - The GitHub branch - defaults to Master
  */
 
  apiBaseUrl = 'https://api.github.com';//Every url must have this at the beginning
 
  if (!po.fileName || !po.repoName) {
    throw new Error('Must have a file name to create a new file');
  }
 
  if (!po.userName) {
    po.userName = getMyGitHubInfo_('userName');  
  }
 
  po.fileName = encodeURI(po.fileName);
  userPlusRepoName = po.userName + "/" + po.repoName;
   
  urlEnding = Utilities.formatString('/repos/%s/contents/%s', userPlusRepoName, po.fileName)
 
  url = apiBaseUrl + urlEnding;
  //Logger.log('url 35: ' + url)

  myToken = getHardCodedToken_();

  if (!po.commitDescription) {
    po.commitDescription = "This is the commit description";
  }
 
  if (po.encode === true || !po.encode) {//encode by default
    //Logger.log('it will encode')
    po.fileContent = Utilities.base64Encode(po.fileContent);
  }
  //Logger.log('po.fileContent 47: ' + po.fileContent)
 
  if (!po.branch) {
    po.branch = 'master';
  }
 
  data = {
    branch: po.branch,
    message: po.commitDescription,
    content: po.fileContent
  };
 
  payload = JSON.stringify(data);
 
  options = {
    method: 'put',
    muteHttpExceptions: true,
    contentType: "application/json",
    headers: {
      Authorization: "Bearer " + myToken
    },
    responseType: 'json',
    payload: payload
  }
 
  //Logger.log('options 72: ' + JSON.stringify(options))
 
  rslt = UrlFetchApp.fetch(url,options);

  rspnsCode = rslt.getResponseCode();
  //Logger.log('rspnsCode 77: ' + rspnsCode)
 
  if (rspnsCode !== 200 && rspnsCode !== 201) {
    throw new Error('Response coming back from GitHub is: ' + rspnsCode + "\n\n" + rslt.getContentText());
  }
 
  //Logger.log('rslt.getContentText(): ' + rslt.getContentText())
  //Logger.log('typeof rslt: ' + typeof rslt)
 
  data = JSON.parse(rslt);//Even though the returned value is an object it must be parsed into JSON
 
  Logger.log('data.content ' + JSON.stringify(data.content))
  Logger.log('data.content.url ' + data.content.url)
  Logger.log('data.commit.tree ' + JSON.stringify(data.commit.tree))
}catch(e) {
  Logger.log("Error: " + e.message)
  //errorHandling(e);//Run centralized error handling function
}
}