49 lines
1.6 KiB
Bash
Executable file
49 lines
1.6 KiB
Bash
Executable file
#!/bin/sh
|
|
|
|
# Provide the canonicalize filename (physical filename with out any symlinks)
|
|
# like the GNU version readlink with the -f option regardless of the version of
|
|
# readlink (GNU or BSD).
|
|
|
|
# This file is part of a set of unofficial pre-commit hooks available
|
|
# at github.
|
|
# Link: https://github.com/githubbrowser/Pre-commit-hooks
|
|
# Contact: David Martin, david.martin.mailbox@googlemail.com
|
|
|
|
###########################################################
|
|
# There should be no need to change anything below this line.
|
|
|
|
# Canonicalize by recursively following every symlink in every component of the
|
|
# specified filename. This should reproduce the results of the GNU version of
|
|
# readlink with the -f option.
|
|
#
|
|
# Reference: https://stackoverflow.com/questions/1055671/how-can-i-get-the-behavior-of-gnus-readlink-f-on-a-mac
|
|
canonicalize_filename () {
|
|
local target_file="$1"
|
|
local physical_directory=""
|
|
local result=""
|
|
|
|
# Need to restore the working directory after work.
|
|
local working_dir="`pwd`"
|
|
|
|
cd -- "$(dirname -- "$target_file")"
|
|
target_file="$(basename -- "$target_file")"
|
|
|
|
# Iterate down a (possible) chain of symlinks
|
|
while [ -L "$target_file" ]
|
|
do
|
|
target_file="$(readlink -- "$target_file")"
|
|
cd -- "$(dirname -- "$target_file")"
|
|
target_file="$(basename -- "$target_file")"
|
|
done
|
|
|
|
# Compute the canonicalized name by finding the physical path
|
|
# for the directory we're in and appending the target file.
|
|
physical_directory="`pwd -P`"
|
|
result="$physical_directory/$target_file"
|
|
|
|
# restore the working directory after work.
|
|
cd -- "$working_dir"
|
|
|
|
echo "$result"
|
|
}
|