While doing some research on the Learn CLI and creating content on Learn, I noticed that the README instructions might be out of date and that an alias exists that doesn't seem to be in use.

Specifically, I noticed that the command "learn new" no longer worked, "learn guide" replaced it, and there is a third command "learn walkthrough" that appears to do the same thing as "learn guide." I also noticed that "learn guide" is an alias for walkthrough command but not listed in the output when I run the "learn help" command.

https://github.com/gSchool/glearn-cli/blob/cff7d28fcb8c9e66b220f553865056c564fe9214/app/cmd/guide.go

It looks like if a code change is applied to the file above and the readme is updated to reflect the new command (learn walkthrough) then things should be good to go.

I use a lot of output redirection when using the CLI, especially in scripts. Because some error messages are written to standard out, sometimes I don't know of failures until I look in a file. It would be lovely if errors were printed to standard error.

Expected Behavior

All fatal error messages are written to standard error.

Current Behavior

Some fatal error messages are written to standard out.

Possible Solution

Use the fmt.F*(os.Stderr, ...) form to print to standard error.

Steps to Reproduce

1. Rename the ~/.glearn-config.yaml file to something else
2. Run ../glearn-cli publish 1>/dev/null
3. Note that the error message is not printed since standard out is being redirected to /dev/null

Context (Environment)

This would help those that use the CLI to write better scripts for their curriculum-making efforts.

I am running a pre-release version (v0.10.14-beta-1.0) of the CLI because I'm making improvements and while the changes have been merged into master, they haven't yet been put into a release.

Expected Behavior

When I run the publish or preview command, I do not get a message that tells me that there is a newer version of the CLI available.

Current Behavior

When I run the publish or preview command, it prints an incorrect message that there is a newer version of the CLI available.

Possible Solution

Use semantic versioning to compare the installed version and the latest version published.

Steps to Reproduce

1. Clone the repo
2. Change the currentReleaseVersion value to "20.0.0"
3. Build the project
4. Run ./glearn-cli preview path/to/repo and see the following message:

   WARNING: There is newer version of the learn tool available.
   Latest: v0.10.13
   Current: v20.0.0
   To avoid issues, upgrade by following the instructions at this link:
   https://github.com/gSchool/glearn-cli/blob/master/upgrade_instructions.md
   

Context (Environment)

This isn't a high-priority fix. It's just kind of annoying when running prer-elease versions.