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# Copyright (c) Microsoft Corporation. All rights reserved.
# SPDX-License-Identifier: MIT
#
# Visual Studio Code terminal integration for fish
#
# Manual installation:
#
# (1) Add the following to the end of `$__fish_config_dir/config.fish`:
#
# string match -q "$TERM_PROGRAM" "vscode"
# and . (code --locate-shell-integration-path fish)
#
# (2) Restart fish.
# Don't run in scripts, other terminals, or more than once per session.
status is-interactive
and string match --quiet "$TERM_PROGRAM" "vscode"
and ! set --query VSCODE_SHELL_INTEGRATION
or exit
set --global VSCODE_SHELL_INTEGRATION 1
# Apply any explicit path prefix (see #99878)
if status --is-login; and set -q VSCODE_PATH_PREFIX
fish_add_path -p $VSCODE_PATH_PREFIX
end
set -e VSCODE_PATH_PREFIX
# Helper function
function __vsc_esc -d "Emit escape sequences for VS Code shell integration"
builtin printf "\e]633;%s\a" (string join ";" $argv)
end
# Sent right before executing an interactive command.
# Marks the beginning of command output.
function __vsc_cmd_executed --on-event fish_preexec
__vsc_esc C
__vsc_esc E (__vsc_escape_value "$argv")
# Creates a marker to indicate a command was run.
set --global _vsc_has_cmd
end
# Escape a value for use in the 'P' ("Property") or 'E' ("Command Line") sequences.
# Backslashes are doubled and non-alphanumeric characters are hex encoded.
function __vsc_escape_value
# Escape backslashes and semi-colons
echo $argv \
| string replace --all '\\' '\\\\' \
| string replace --all ';' '\\x3b' \
;
end
# Sent right after an interactive command has finished executing.
# Marks the end of command output.
function __vsc_cmd_finished --on-event fish_postexec
__vsc_esc D $status
end
# Sent when a command line is cleared or reset, but no command was run.
# Marks the cleared line with neither success nor failure.
function __vsc_cmd_clear --on-event fish_cancel
__vsc_esc D
end
# Sent whenever a new fish prompt is about to be displayed.
# Updates the current working directory.
function __vsc_update_cwd --on-event fish_prompt
__vsc_esc P Cwd=(__vsc_escape_value "$PWD")
# If a command marker exists, remove it.
# Otherwise, the commandline is empty and no command was run.
if set --query _vsc_has_cmd
set --erase _vsc_has_cmd
else
__vsc_cmd_clear
end
end
# Sent at the start of the prompt.
# Marks the beginning of the prompt (and, implicitly, a new line).
function __vsc_fish_prompt_start
__vsc_esc A
end
# Sent at the end of the prompt.
# Marks the beginning of the user's command input.
function __vsc_fish_cmd_start
__vsc_esc B
end
function __vsc_fish_has_mode_prompt -d "Returns true if fish_mode_prompt is defined and not empty"
functions fish_mode_prompt | string match -rvq '^ *(#|function |end$|$)'
end
# Preserve the user's existing prompt, to wrap in our escape sequences.
functions --copy fish_prompt __vsc_fish_prompt
# Preserve and wrap fish_mode_prompt (which appears to the left of the regular
# prompt), but only if it's not defined as an empty function (which is the
# officially documented way to disable that feature).
if __vsc_fish_has_mode_prompt
functions --copy fish_mode_prompt __vsc_fish_mode_prompt
function fish_mode_prompt
__vsc_fish_prompt_start
__vsc_fish_mode_prompt
end
function fish_prompt
__vsc_fish_prompt
__vsc_fish_cmd_start
end
else
# No fish_mode_prompt, so put everything in fish_prompt.
function fish_prompt
__vsc_fish_prompt_start
__vsc_fish_prompt
__vsc_fish_cmd_start
end
end
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