mirror of
https://github.com/fish-shell/fish-shell
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59 lines
2 KiB
Fish
59 lines
2 KiB
Fish
# Provide a minimalist realpath implementation to help deal with platforms that may not provide it
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# as a command. If an external realpath or grealpath command is available simply pass all arguments
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# thru to it. If not fallback to our builtin.
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# The following is slightly subtle. We have to define a realpath function even if there is an
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# external command by that name. That's because if we don't the parser will select our builtin.
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# However, we only want our builtin if there is no external realpath command.
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if command -sq realpath
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function realpath -w realpath -d "print the resolved path [command realpath]"
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command realpath $argv
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end
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exit 0
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end
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# If there is a HomeBrew installed version of GNU realpath named grealpath use that.
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if command -sq grealpath
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function realpath -w grealpath -d "print the resolved path [command grealpath]"
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command grealpath $argv
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end
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exit 0
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end
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function realpath -d "return an absolute path without symlinks"
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set -l options h/help q/quiet V-version s/no-symlinks N-strip z/zero
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set -a options e/canonicalize-existing m/canonicalize-missing L/logical P/physical
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set -a options 'R-relative-to=' 'B-relative-base='
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argparse -n realpath $options -- $argv
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or return
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if set -q _flag_help
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__fish_print_help realpath
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return 0
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end
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set -l supported_flags
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if set -el _flag_no_symlinks
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set -el _flag_s
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set -a supported_flags --no-symlinks
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end
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# We don't implement any of the other flags so if any are set it's an error.
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if string match -q '_flag_*' -- (set -l)
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set -l flags (set -l | string replace --filter --regex '_flag_\w+\s*' '' | sort -u)
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printf (_ "%s: These flags are not allowed by fish realpath: '%s'") realpath "$flags" >&2
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echo >&2
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__fish_print_help realpath
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return 1
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end
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if not set -q argv[1]
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printf (_ "%ls: Expected at least %d args, got only %d\n") realpath 1 0
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return 1
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end
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for path in $argv
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builtin realpath $supported_flags $path
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end
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end
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