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fix using external realpath command

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Fixes #3489
This commit is contained in:
Kurtis Rader 2016-11-13 13:34:19 -08:00
parent 5284a133b0
commit 209a2576cd
1 changed files with 40 additions and 37 deletions
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25
share/functions/realpath.fish
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@ -1,18 +1,22 @@
# Provide a minimalist realpath implementation to help deal with platforms that may not provide it
# as a command. If a realpath command is available simply pass all arguments thru to it. If not
# fallback to alternative solutions.
# as a command. If an external realpath or grealpath command is available simply pass all arguments
# thru to it. If not fallback to our builtin.
# The following is slightly subtle. The first time `realpath` is invoked by autoloading this script
# will be read. If we see that there is an external realpath command we just return. That will cause
# fish to run the external command. Or, if there is a grealpath, we alias it.
# On the other hand, if an external command isn't found we provide a function that will facilitate
# fallback behavion through our builtin.
# The following is slightly subtle. We have to define a realpath function even if there is an
# external command by that name. That's because if we don't the parser will select our builtin.
# However, we only want our builtin if there is no external realpath command.
if command -s realpath >/dev/null
function realpath -w realpath -d "print the resolved path [command realpath]"
command realpath $argv
end
exit 0
end
if not command -s realpath >/dev/null
# If there is a HomeBrew installed version of GNU realpath named grealpath use that.
if command -s grealpath >/dev/null
function realpath -w grealpath -d "print the resolved path [grealpath]"
grealpath $argv
function realpath -w grealpath -d "print the resolved path [command grealpath]"
command grealpath $argv
end
exit 0
end
@ -47,4 +51,3 @@ if not command -s realpath >/dev/null
end
end
end
end