feat(fish-deps): resolve real binary past our generated wrapper shims

Add __fish_real_command, which walks all PATH matches for a name and
returns the first that is NOT one of this config's generated wrappers
(identified by the "# <name>-wrapper-version:" marker; grep -I treats
real ELF binaries as no-match so only our text shims are skipped). It
never returns one of our own wrappers, so a caller embedding the result
can't build a shim that recurses into itself.

Use it for the fish-deps status "(Found at ...)" path so paru/yay show
the real binary instead of the ~/.local/bin logging shim.
This commit is contained in:
2026-06-22 02:16:40 -04:00
parent 4a5536aeb6
commit cb30f19c32
2 changed files with 37 additions and 1 deletions
+36
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@@ -0,0 +1,36 @@
# Copyright (C) 2026 Rootiest
# SPDX-License-Identifier: AGPL-3.0-or-later
# SYNOPSIS
# __fish_real_command <name>
#
# DESCRIPTION
# Resolves the real on-disk binary for <name>, skipping any of this
# config's own generated wrapper shims. The PTY-logging wrappers we drop
# in ~/.local/bin (paru, yay) shadow the real binary on PATH; this walks
# every PATH match in order and returns the first one that is NOT one of
# our wrappers, identified by the "# <name>-wrapper-version:" marker line.
#
# This intentionally never returns one of our own wrappers, so callers
# that embed the result in a generated wrapper cannot create a shim that
# recurses into itself.
#
# ARGUMENTS
# name Command name to resolve (e.g. paru, yay)
#
# RETURNS
# 0 Real binary path printed to stdout
# 1 No non-wrapper binary found on PATH (nothing printed)
#
# EXAMPLE
# set -l real (__fish_real_command paru) # -> /usr/bin/paru, not the shim
function __fish_real_command --argument-names name
for p in (command -sa $name)
# -I: binary files (real ELF binaries) count as no-match and are
# returned; only our text wrapper scripts carry the marker and skip.
grep -qsIF -- "# $name-wrapper-version:" $p; and continue
echo $p
return 0
end
return 1
end
+1 -1
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@@ -30,7 +30,7 @@ function _fish_deps_status
end
set_color green; echo -n " ✓ "; set_color normal
echo -n "$bin "
set_color brblack; echo "(Found at "(command -s $bin)")"; set_color normal
set_color brblack; echo "(Found at "(__fish_real_command $bin)")"; set_color normal
else if test "$tier" = rec
set_color yellow; echo -n " ⚠ "; set_color normal
echo -n "$bin "