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102 lines
4.0 KiB
Markdown
102 lines
4.0 KiB
Markdown
## Shell Integration
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wezterm supports integrating with the shell through the following means:
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* OSC 7 Escape sequences to advise the terminal of the working directory
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* OSC 133 Escape sequence to define Input, Output and Prompt zones
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These sequences enable some improved user experiences, such as being able
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to spawn new panes, tabs and windows with the same current working directory
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as the current pane, [jumping through the scrollback to the start of an earlier command](config/lua/keyassignment/ScrollToPrompt.md),
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or [conveniently selecting the complete output from a command](config/lua/keyassignment/SelectTextAtMouseCursor.md).
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In order for these features to be enabled, you will need to configure your
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shell program to emit the escape sequences at the appropriate place.
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You can find some [examples for various shells in the wezterm
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repo](https://github.com/wez/wezterm/tree/main/assets/shell-integration).
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Starting with version 20210314-114017-04b7cedd, the Fedora and Debian packages
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automatically activate shell integration for Bash and Zsh.
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If you're on another system, more information on how these escapes work
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can be found below.
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[Learn more about OSC 133 Semantic Prompt Escapes](https://gitlab.freedesktop.org/Per_Bothner/specifications/blob/master/proposals/semantic-prompts.md).
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### OSC 7 Escape sequence to set the working directory
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`OSC` is escape sequence jargon for *Operating System Command*; `OSC 7` means
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Operating System Command number 7. This is an escape sequence that originated
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in the macOS Terminal application that is used to advise the terminal of the
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current working directory.
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An application (usually your shell) can be configured to emit this escape
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sequence when the current directory changes, or just to emit it each time
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it prints the prompt.
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The current working directory can be specified as a URL like this:
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```bash
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printf "\033]7;file://HOSTNAME/CURRENT/DIR\033\\"
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```
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**When the current working directory has been set via OSC 7, spawning
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a new tab will use the current working directory of the current tab,
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so that you don't have to manually change the directory**.
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If you are on a modern Fedora installation, the defaults for bash and
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zsh source a `vte.sh` script that configures the shell to emit this
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sequence. On other systems you will likely need to configure this
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for yourself.
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### OSC 7 on Windows with cmd.exe
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`cmd.exe` doesn't allow a lot of flexibility in configuring the prompt,
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but fortunately it does allow for emitting escape sequences. You
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can use the `set_environment_variables` configuration to pre-configure
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the prompt environment in your `.wezterm.lua`; this example configures
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the use of OSC 7 as well as including the time and current directory in
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the visible prompt with green and purple colors, and makes the prompt
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span multiple lines:
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```lua
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return {
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set_environment_variables = {
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prompt = "$E]7;file://localhost/$P$E\\$E[32m$T$E[0m $E[35m$P$E[36m$_$G$E[0m ",
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}
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}
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```
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## Using clink on Windows Systems
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[Clink](https://github.com/mridgers/clink) brings bash style line editing to
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your Windows cmd.exe experience. If you haven't installed clink to be the
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global default on your system, you can configure wezterm to launch clink by
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setting the `default_prog` configuration in your `.wezterm.lua`; for example,
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if you have extracted clink to `c:\clink_0.4.9` you might configure this:
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```lua
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local wezterm = require 'wezterm';
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local default_prog;
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local set_environment_variables = {}
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if wezterm.target_triple == "x86_64-pc-windows-msvc" then
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-- Use OSC 7 as per the above example
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set_environment_variables["prompt"] = "$E]7;file://localhost/$P$E\\$E[32m$T$E[0m $E[35m$P$E[36m$_$G$E[0m "
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-- use a more ls-like output format for dir
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set_environment_variables["DIRCMD"] = "/d"
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-- And inject clink into the command prompt
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default_prog = {"cmd.exe", "/s", "/k", "c:/clink_0.4.9/clink_x64.exe", "inject", "-q"}
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end
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return {
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default_prog = default_prog,
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set_environment_variables = set_environment_variables,
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}
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```
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Now, rather than just running `cmd.exe` on its own, this will cause `cmd.exe`
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to self-inject the clink line editor.
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