iTerm2 Shell Integration and Oh My Zsh Conflicts

Question

I've recently re-installed iTerm2 and am now running into an interesting problem after setting up iTerm's Shell Integration.

Upon open a new terminal window, everything seems to look correct, showing the proper "agnoster" theme from Oh My ZSH:

If I issue clear, now my terminal window looks like this:

I can revert things to the original state by sourcing ~/.zshrc once again, but I'm really curious about the root issue and if there's any way to fix it.

I have tried hiding the marker in iTerm's settings, but that just results in a blank terminal.

In a previous install (before I wiped this Mac), I had Oh My ZSH and Shell Integration both going, and although it looked kind of wonky at times, it still seemed to keep the Oh My ZSH theme regardless of clearing the terminal or issuing any other command.

Does anyone have any ideas on this? I've checked the iTerm settings over and over, but can't seem to find anything that would be related.

Answer 1

Late answer but this worked for me.

The iTerm2 Shell Integrations page has you download the install script and pipe it into bash.

Instead, download it locally and modify it so it knows you are using ZSH.

First, download the script

wget https://iterm2.com/misc/install_shell_integration.sh

Then, instead of having the script determine the shell just define it as "zsh"

# comment out this line
# SHELL=$(echo "${SHELL}" | tr / "\n" | tail -1)

# replace it with this line
SHELL="zsh"

Next, make the install script executable and then run it

chmod +x install_shell_integration.sh
./install_shell_integration.sh

After that the integration should be installed properly.

Note Remove the Bash integration if you don't need it.

rm ~/.iterm2_shell_integration.bash

Answer 2

I just installed the Shell Integration in iTerm 2 (Build 2.9.20160313) and had the exact same problem.

The way I solved it was by adding a single line to ~/.iterm2_shell_integration.zsh right after export ITERM_SHELL_INTEGRATION_INSTALLED=Yes at line 3:

ITERM2_PRECMD_PS1="$PS1"

Thus, this is how the head of the above-mentioned file looks:

if [[ -o login ]]; then
  if [ "$TERM" != "screen" -a "$ITERM_SHELL_INTEGRATION_INSTALLED" = "" ]; then
    export ITERM_SHELL_INTEGRATION_INSTALLED=Yes

    ## BEGIN EDIT
    ITERM2_PRECMD_PS1="$PS1"
    ## END EDIT

    # Indicates start of command output. Runs just before command executes.
    iterm2_before_cmd_executes() {
      printf "\033]133;C;\007"
    }

    # ...

It's likely a bug, since (as you can see from the comments in the same file) the script is supposed to save your $PS1 on login, but it does not.

Answer 3

For anyone still having this issue, there's now an option in iterm's profile settings that allows you to disable these "marks" ( which are detailed under the "marks" section on this page )

1. Open iterm preferences
2. Select "profiles"
3. Select the profile
4. Select "Terminal" tab
5. Untick the "Shell Integration > Show mark indicators" checkbox

Screenshot of the setting within iterm preferences