initial commit
This commit is contained in:
commit
b9c659a70a
GPG key ID:
F2CBA5C78FBD83E1
4 changed files with 555 additions and 0 deletions
117
LICENSE
Normal file
117
LICENSE
Normal file
|
|
@ -0,0 +1,117 @@
|
||||||
|
CC0 1.0 Universal
|
||||||
|
|
||||||
|
Statement of Purpose
|
||||||
|
|
||||||
|
The laws of most jurisdictions throughout the world automatically confer
|
||||||
|
exclusive Copyright and Related Rights (defined below) upon the creator and
|
||||||
|
subsequent owner(s) (each and all, an "owner") of an original work of
|
||||||
|
authorship and/or a database (each, a "Work").
|
||||||
|
|
||||||
|
Certain owners wish to permanently relinquish those rights to a Work for the
|
||||||
|
purpose of contributing to a commons of creative, cultural and scientific
|
||||||
|
works ("Commons") that the public can reliably and without fear of later
|
||||||
|
claims of infringement build upon, modify, incorporate in other works, reuse
|
||||||
|
and redistribute as freely as possible in any form whatsoever and for any
|
||||||
|
purposes, including without limitation commercial purposes. These owners may
|
||||||
|
contribute to the Commons to promote the ideal of a free culture and the
|
||||||
|
further production of creative, cultural and scientific works, or to gain
|
||||||
|
reputation or greater distribution for their Work in part through the use and
|
||||||
|
efforts of others.
|
||||||
|
|
||||||
|
For these and/or other purposes and motivations, and without any expectation
|
||||||
|
of additional consideration or compensation, the person associating CC0 with a
|
||||||
|
Work (the "Affirmer"), to the extent that he or she is an owner of Copyright
|
||||||
|
and Related Rights in the Work, voluntarily elects to apply CC0 to the Work
|
||||||
|
and publicly distribute the Work under its terms, with knowledge of his or her
|
||||||
|
Copyright and Related Rights in the Work and the meaning and intended legal
|
||||||
|
effect of CC0 on those rights.
|
||||||
|
|
||||||
|
1. Copyright and Related Rights. A Work made available under CC0 may be
|
||||||
|
protected by copyright and related or neighboring rights ("Copyright and
|
||||||
|
Related Rights"). Copyright and Related Rights include, but are not limited
|
||||||
|
to, the following:
|
||||||
|
|
||||||
|
i. the right to reproduce, adapt, distribute, perform, display, communicate,
|
||||||
|
and translate a Work;
|
||||||
|
|
||||||
|
ii. moral rights retained by the original author(s) and/or performer(s);
|
||||||
|
|
||||||
|
iii. publicity and privacy rights pertaining to a person's image or likeness
|
||||||
|
depicted in a Work;
|
||||||
|
|
||||||
|
iv. rights protecting against unfair competition in regards to a Work,
|
||||||
|
subject to the limitations in paragraph 4(a), below;
|
||||||
|
|
||||||
|
v. rights protecting the extraction, dissemination, use and reuse of data in
|
||||||
|
a Work;
|
||||||
|
|
||||||
|
vi. database rights (such as those arising under Directive 96/9/EC of the
|
||||||
|
European Parliament and of the Council of 11 March 1996 on the legal
|
||||||
|
protection of databases, and under any national implementation thereof,
|
||||||
|
including any amended or successor version of such directive); and
|
||||||
|
|
||||||
|
vii. other similar, equivalent or corresponding rights throughout the world
|
||||||
|
based on applicable law or treaty, and any national implementations thereof.
|
||||||
|
|
||||||
|
2. Waiver. To the greatest extent permitted by, but not in contravention of,
|
||||||
|
applicable law, Affirmer hereby overtly, fully, permanently, irrevocably and
|
||||||
|
unconditionally waives, abandons, and surrenders all of Affirmer's Copyright
|
||||||
|
and Related Rights and associated claims and causes of action, whether now
|
||||||
|
known or unknown (including existing as well as future claims and causes of
|
||||||
|
action), in the Work (i) in all territories worldwide, (ii) for the maximum
|
||||||
|
duration provided by applicable law or treaty (including future time
|
||||||
|
extensions), (iii) in any current or future medium and for any number of
|
||||||
|
copies, and (iv) for any purpose whatsoever, including without limitation
|
||||||
|
commercial, advertising or promotional purposes (the "Waiver"). Affirmer makes
|
||||||
|
the Waiver for the benefit of each member of the public at large and to the
|
||||||
|
detriment of Affirmer's heirs and successors, fully intending that such Waiver
|
||||||
|
shall not be subject to revocation, rescission, cancellation, termination, or
|
||||||
|
any other legal or equitable action to disrupt the quiet enjoyment of the Work
|
||||||
|
by the public as contemplated by Affirmer's express Statement of Purpose.
|
||||||
|
|
||||||
|
3. Public License Fallback. Should any part of the Waiver for any reason be
|
||||||
|
judged legally invalid or ineffective under applicable law, then the Waiver
|
||||||
|
shall be preserved to the maximum extent permitted taking into account
|
||||||
|
Affirmer's express Statement of Purpose. In addition, to the extent the Waiver
|
||||||
|
is so judged Affirmer hereby grants to each affected person a royalty-free,
|
||||||
|
non transferable, non sublicensable, non exclusive, irrevocable and
|
||||||
|
unconditional license to exercise Affirmer's Copyright and Related Rights in
|
||||||
|
the Work (i) in all territories worldwide, (ii) for the maximum duration
|
||||||
|
provided by applicable law or treaty (including future time extensions), (iii)
|
||||||
|
in any current or future medium and for any number of copies, and (iv) for any
|
||||||
|
purpose whatsoever, including without limitation commercial, advertising or
|
||||||
|
promotional purposes (the "License"). The License shall be deemed effective as
|
||||||
|
of the date CC0 was applied by Affirmer to the Work. Should any part of the
|
||||||
|
License for any reason be judged legally invalid or ineffective under
|
||||||
|
applicable law, such partial invalidity or ineffectiveness shall not
|
||||||
|
invalidate the remainder of the License, and in such case Affirmer hereby
|
||||||
|
affirms that he or she will not (i) exercise any of his or her remaining
|
||||||
|
Copyright and Related Rights in the Work or (ii) assert any associated claims
|
||||||
|
and causes of action with respect to the Work, in either case contrary to
|
||||||
|
Affirmer's express Statement of Purpose.
|
||||||
|
|
||||||
|
4. Limitations and Disclaimers.
|
||||||
|
|
||||||
|
a. No trademark or patent rights held by Affirmer are waived, abandoned,
|
||||||
|
surrendered, licensed or otherwise affected by this document.
|
||||||
|
|
||||||
|
b. Affirmer offers the Work as-is and makes no representations or warranties
|
||||||
|
of any kind concerning the Work, express, implied, statutory or otherwise,
|
||||||
|
including without limitation warranties of title, merchantability, fitness
|
||||||
|
for a particular purpose, non infringement, or the absence of latent or
|
||||||
|
other defects, accuracy, or the present or absence of errors, whether or not
|
||||||
|
discoverable, all to the greatest extent permissible under applicable law.
|
||||||
|
|
||||||
|
c. Affirmer disclaims responsibility for clearing rights of other persons
|
||||||
|
that may apply to the Work or any use thereof, including without limitation
|
||||||
|
any person's Copyright and Related Rights in the Work. Further, Affirmer
|
||||||
|
disclaims responsibility for obtaining any necessary consents, permissions
|
||||||
|
or other rights required for any use of the Work.
|
||||||
|
|
||||||
|
d. Affirmer understands and acknowledges that Creative Commons is not a
|
||||||
|
party to this document and has no duty or obligation with respect to this
|
||||||
|
CC0 or use of the Work.
|
||||||
|
|
||||||
|
For more information, please see
|
||||||
|
<http://creativecommons.org/publicdomain/zero/1.0/>
|
||||||
|
|
||||||
38
README.md
Normal file
38
README.md
Normal file
|
|
@ -0,0 +1,38 @@
|
||||||
|
This is an implementation of `realpath -m` (also known as `realpath
|
||||||
|
--canonicalize-missing`) for systems without coreutils. The differences to
|
||||||
|
`realpath -m` are:
|
||||||
|
|
||||||
|
- different return value when a symlink loop is detected
|
||||||
|
- also works if $PWD doesn't exist
|
||||||
|
|
||||||
|
The implementation is not POSIX compatible. Namely, POSIX does not specify the
|
||||||
|
`readlink` utility used by this script. Instead, the script takes the pragmatic
|
||||||
|
approach and just requires:
|
||||||
|
|
||||||
|
- a POSIX compliant shell (does not require bash), busybox sh will work
|
||||||
|
- dirname and basename
|
||||||
|
- sed
|
||||||
|
- grep -E
|
||||||
|
- readlink (without options)
|
||||||
|
|
||||||
|
As a result, the script works well under busybox.
|
||||||
|
|
||||||
|
The script is a port of [a bash script](https://github.com/bashup/realpaths)
|
||||||
|
written by PJ Eby and released in the public domain. Likewise, the author of
|
||||||
|
this script has waived all copyright on it as well. Differences of this
|
||||||
|
implementation to the one in bash:
|
||||||
|
|
||||||
|
- much slower due to excessive forking
|
||||||
|
- tests are pure shell without cram and without .devkit
|
||||||
|
- functions are named realpath_foo instead of realpath.foo because a dot is
|
||||||
|
not allowed in POSIX shell
|
||||||
|
|
||||||
|
To run the tests:
|
||||||
|
|
||||||
|
$ ./test.sh
|
||||||
|
|
||||||
|
To verify that the script works with busybox:
|
||||||
|
|
||||||
|
$ mkdir busybox
|
||||||
|
$ busybox --install -s busybox
|
||||||
|
$ PATH=$(pwd)/busybox ./test.sh
|
||||||
143
realpath.sh
Executable file
143
realpath.sh
Executable file
|
|
@ -0,0 +1,143 @@
|
||||||
|
#!/usr/bin/env sh
|
||||||
|
|
||||||
|
# Sets REPLY to the absolute, well-formed path of a physical directory that
|
||||||
|
# contains (or would contain) the supplied path. (Equivalent to the dirname of
|
||||||
|
# realpath.resolved "$1".) Always succeeds.
|
||||||
|
realpath_location(){ realpath_follow "$1"; realpath_absolute "$REPLY" ".."; }
|
||||||
|
|
||||||
|
# Sets REPLY to the absolute, well-formed path of $1, with symlinks in the
|
||||||
|
# final path portion resolved. (Equivalent to the realpath.absolute of
|
||||||
|
# realpath.follow "$1".) Always succeeds. The result is not a symlink unless it
|
||||||
|
# is inaccessible or part of a symlink cycle.
|
||||||
|
realpath_resolved(){ realpath_follow "$1"; realpath_absolute "$REPLY"; }
|
||||||
|
|
||||||
|
realpath_dirname() { REPLY=$(dirname "$1"); }
|
||||||
|
realpath_basename() { REPLY=$(basename "$1"); }
|
||||||
|
|
||||||
|
# Sets REPLY to the first non-symlink (or last accessible, non-looping symlink)
|
||||||
|
# in the symlink chain beginning at $1. Replies with the unchanged $1 if it is
|
||||||
|
# not a symlink. Always succeeds. The result is not a symlink unless it is
|
||||||
|
# inaccessible or part of a symlink cycle. (Note: the result can be a relative
|
||||||
|
# path, if both $1 and all the symlinks in the chain are relative. Use
|
||||||
|
# realpath.resolved instead if you want a guaranteed-absolute path.)
|
||||||
|
realpath_follow() {
|
||||||
|
while [ -L "$1" ] && target=$(readlink -- "$1"); do
|
||||||
|
realpath_dirname "$1"
|
||||||
|
# Resolve relative to symlink's directory
|
||||||
|
if [ "$REPLY" = "." ]; then
|
||||||
|
REPLY=$target
|
||||||
|
else
|
||||||
|
case "$target" in
|
||||||
|
/*)
|
||||||
|
REPLY=$target;;
|
||||||
|
*)
|
||||||
|
REPLY=$REPLY/$target;;
|
||||||
|
esac
|
||||||
|
fi
|
||||||
|
# Break out if we found a symlink loop
|
||||||
|
for target; do [ "$REPLY" = "$target" ] && break 2; done
|
||||||
|
# Add to the loop-detect list and tail-recurse
|
||||||
|
set -- "$REPLY" "$@"
|
||||||
|
done
|
||||||
|
REPLY="$1"
|
||||||
|
}
|
||||||
|
|
||||||
|
# Sets REPLY to the absolute, well-formed combination of the supplied path(s).
|
||||||
|
# Always succeeds.
|
||||||
|
#
|
||||||
|
# Each path may be absolute or relative. The resulting path is the combination
|
||||||
|
# of the last absolute path in the list supplied, combined with any relative
|
||||||
|
# paths that follow it. If no absolute paths are given, the relative paths are
|
||||||
|
# processed relative to $PWD -- so passing zero arguments simply returns $PWD.
|
||||||
|
#
|
||||||
|
# Relative path parts are resolved logically rather than physically. That is to
|
||||||
|
# say, .. is processed by removing elements from the path string, rather than
|
||||||
|
# by inspecting the filesystem. (So symlinks are not processed in any way, and
|
||||||
|
# the existence or accessibility of the files and directories is irrelevant:
|
||||||
|
# with the exception of defaulting to $PWD, the result is obtained solely via
|
||||||
|
# string manipulation of the supplied paths.)
|
||||||
|
#
|
||||||
|
# As per POSIX, bash, Python, and other path handling libraries, absolute paths
|
||||||
|
# beginning with exactly two slashes are treated specially. The string returned
|
||||||
|
# by realpath.absolute will begin with two slashes if the last absolute path
|
||||||
|
# argument began with exactly two slashes; otherwise the result will begin with
|
||||||
|
# only one slash, no matter how many slashes the last absolute path argument
|
||||||
|
# began with.
|
||||||
|
realpath_absolute() {
|
||||||
|
REPLY=$PWD
|
||||||
|
while [ $# -gt 0 ]; do
|
||||||
|
if echo "$1" | grep -E '^(//[^/]*)$' >/dev/null 2>&1; then
|
||||||
|
REPLY=//
|
||||||
|
first=$(echo "$1" | cut -c3-)
|
||||||
|
shift
|
||||||
|
set -- "$first" "$@"
|
||||||
|
continue
|
||||||
|
fi
|
||||||
|
case $1 in
|
||||||
|
/*)
|
||||||
|
REPLY=/
|
||||||
|
first=$(echo "$1" | sed -e 's/^\/\+//')
|
||||||
|
shift
|
||||||
|
set -- "$first" "$@"
|
||||||
|
;;
|
||||||
|
*/*)
|
||||||
|
front=${1%%/*}
|
||||||
|
back=$(echo "$1" | sed -e "s/^$front\\/\\+//")
|
||||||
|
shift
|
||||||
|
set -- "$front" "$back" "$@"
|
||||||
|
;;
|
||||||
|
''|.)
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
..)
|
||||||
|
realpath_dirname "$REPLY"
|
||||||
|
shift
|
||||||
|
;;
|
||||||
|
*) REPLY="${REPLY%/}/$1"; shift ;;
|
||||||
|
esac
|
||||||
|
done
|
||||||
|
}
|
||||||
|
|
||||||
|
# Sets REPLY to the fully canonicalized form of $1, recursively resolving
|
||||||
|
# symlinks in every part of the path where that can be done, roughly equivalent
|
||||||
|
# to realpath -m or readlink -m. Always succeeds, but potentially rather slow,
|
||||||
|
# depending on how many directories are symlinks.
|
||||||
|
#
|
||||||
|
# You don't really need this function unless you are trying to determine
|
||||||
|
# whether divergent paths lead to the "same" file. For use cases that don't
|
||||||
|
# involve comparing paths, realpath.resolved should be sufficient, or perhaps
|
||||||
|
# even realpath.absolute. (Note, too, that using canonical paths can result in
|
||||||
|
# user confusion, since users then have to reconcile their inputs with your
|
||||||
|
# outputs!)
|
||||||
|
realpath_canonical() {
|
||||||
|
realpath_follow "$1"; set -- "$REPLY" # $1 is now resolved
|
||||||
|
realpath_basename "$1"; set -- "$1" "$REPLY" # $2 = basename $1
|
||||||
|
realpath_dirname "$1"
|
||||||
|
[ "$REPLY" != "$1" ] && realpath_canonical "$REPLY"; # recurse unless root
|
||||||
|
realpath_absolute "$REPLY" "$2"; # combine canon parent w/basename
|
||||||
|
}
|
||||||
|
|
||||||
|
# Sets REPLY to the shortest relative path from basedir to path. basedir
|
||||||
|
# defaults to $PWD if not supplied. Always succeeds.
|
||||||
|
#
|
||||||
|
# The path and basedir are preprocessed with realpath.absolute, so they can be
|
||||||
|
# relative paths, or absolute ones containing relative components. (The result
|
||||||
|
# is identical to calling Python's os.path.relpath function with the same
|
||||||
|
# arguments, but is much faster than even the fork to start Python would be.)
|
||||||
|
#
|
||||||
|
# The main use case for this function is portably creating relative symlinks
|
||||||
|
# without needing ln --relative or realpath --relative-to. Specifically, if you
|
||||||
|
# are doing ln -s somepath somedir/link, you can make it relative using
|
||||||
|
# realpath.relative somepath somedir; ln -s "$REPLY" somedir/link.
|
||||||
|
realpath_relative() {
|
||||||
|
target=""
|
||||||
|
realpath_absolute "$1"
|
||||||
|
shift
|
||||||
|
set -- "$REPLY" "$@"
|
||||||
|
realpath_absolute "${2-$PWD}" X
|
||||||
|
while realpath_dirname "$REPLY"; [ "$1" != "$REPLY" ] && [ "$1" = "${1#${REPLY%/}/}" ]; do
|
||||||
|
target=../$target
|
||||||
|
done
|
||||||
|
[ "$1" = "$REPLY" ] && REPLY=${target%/} || REPLY="$target${1#${REPLY%/}/}"
|
||||||
|
REPLY=${REPLY:-.}
|
||||||
|
}
|
||||||
257
test.sh
Executable file
257
test.sh
Executable file
|
|
@ -0,0 +1,257 @@
|
||||||
|
#!/bin/sh
|
||||||
|
|
||||||
|
set -e
|
||||||
|
|
||||||
|
# we use the full path to realpath so that the coreutils version of realpath is
|
||||||
|
# used even when run with busybox in $PATH
|
||||||
|
realpath_m() {
|
||||||
|
REPLY=$(/usr/bin/realpath -m "$1")
|
||||||
|
}
|
||||||
|
|
||||||
|
assert() {
|
||||||
|
expected=$1
|
||||||
|
shift
|
||||||
|
if "$@" && [ "$REPLY" = "$expected" ]; then
|
||||||
|
numok=$((numok+1))
|
||||||
|
else
|
||||||
|
numfail=$((numfail+1))
|
||||||
|
echo "$@: expected '$expected', got '$REPLY'"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
compare() {
|
||||||
|
cmd=$1
|
||||||
|
shift
|
||||||
|
assert "$("$cmd" "$@")" realpath_"$cmd" "$@"
|
||||||
|
}
|
||||||
|
|
||||||
|
numokay=0
|
||||||
|
numfail=0
|
||||||
|
|
||||||
|
# realpath_dirname and realpath_basename should produce the same results as their operating system counterparts.
|
||||||
|
|
||||||
|
. "./realpath.sh"
|
||||||
|
|
||||||
|
for p1 in '' / // . ..; do
|
||||||
|
for p2 in '' /; do
|
||||||
|
for p3 in foo . ..; do
|
||||||
|
for p4 in '' /bar /. /..; do
|
||||||
|
for p5 in '' / // /// /. /..; do
|
||||||
|
compare basename "$p1$p2$p3$p4$p5"
|
||||||
|
compare dirname "$p1$p2$p3$p4$p5"
|
||||||
|
done
|
||||||
|
done
|
||||||
|
done
|
||||||
|
done
|
||||||
|
done
|
||||||
|
|
||||||
|
## realpath_absolute
|
||||||
|
|
||||||
|
# Outputs PWD with no args, joins relative args to PWD, removes empty parts, and
|
||||||
|
# canonicalizes ./..:
|
||||||
|
|
||||||
|
assert "$PWD" realpath_absolute
|
||||||
|
assert "$PWD" realpath_absolute .
|
||||||
|
assert "$PWD/x" realpath_absolute x
|
||||||
|
assert "$PWD/x/y" realpath_absolute x y
|
||||||
|
assert "$PWD/x/y" realpath_absolute x/z ../y
|
||||||
|
assert "$PWD/x/y/z" realpath_absolute x y//z
|
||||||
|
assert "$PWD/x/y/z" realpath_absolute x y '' z
|
||||||
|
assert "$PWD/x/y/z" realpath_absolute x y '' z/.
|
||||||
|
assert "$PWD/x/y/z" realpath_absolute x y '' z/. q .. r .. .. z
|
||||||
|
|
||||||
|
# Ignores arguments to the left of an absolute path:
|
||||||
|
|
||||||
|
assert /etc realpath_absolute /etc
|
||||||
|
assert /etc/z/xq realpath_absolute x y z /etc/z q/../xq
|
||||||
|
|
||||||
|
# Preserves double (but not triple+) slashes at the beginning of an absolute
|
||||||
|
# path:
|
||||||
|
|
||||||
|
assert //server/share/blah realpath_absolute //server share blah/
|
||||||
|
assert /server/share/blah realpath_absolute ///server/share blah
|
||||||
|
assert /server/share/blah realpath_absolute ////server/share blah
|
||||||
|
|
||||||
|
## realpath_relative path dir
|
||||||
|
|
||||||
|
# Outputs the relative path from dir to path:
|
||||||
|
|
||||||
|
assert y realpath_relative y .
|
||||||
|
assert y realpath_relative x/y x
|
||||||
|
assert ../y realpath_relative y x
|
||||||
|
assert ../y/z realpath_relative a/y/z a/x
|
||||||
|
assert ../../y realpath_relative y a/x
|
||||||
|
assert ../../../y realpath_relative y a/b/x
|
||||||
|
|
||||||
|
# Avoids redundancy for common path elements:
|
||||||
|
|
||||||
|
assert . realpath_relative y y
|
||||||
|
assert .. realpath_relative y y/x
|
||||||
|
assert ../.. realpath_relative y y/z/x
|
||||||
|
assert ../../.. realpath_relative /y /y/z/x/a
|
||||||
|
|
||||||
|
# Produces the same outputs as python's os.path.relpath:
|
||||||
|
|
||||||
|
relative() { /usr/bin/python3 -c 'import sys,os.path; sys.stdout.write(os.path.relpath(*sys.argv[1:3]))' "$@"; }
|
||||||
|
compare relative /q /q/r/s
|
||||||
|
compare relative /q/r /q/r/s
|
||||||
|
compare relative /q/r/s /q/r/s
|
||||||
|
compare relative /q/r/s/t /q/r/s
|
||||||
|
compare relative /q/r/s/t/u /q/r/s
|
||||||
|
compare relative /q/r/t /q/r/s
|
||||||
|
compare relative /q/r/t/u /q/r/s
|
||||||
|
compare relative /q/t /q/r/s
|
||||||
|
compare relative /q/t/u /q/r/s
|
||||||
|
compare relative /t/u/v /q/r/s
|
||||||
|
|
||||||
|
## realpath_follow
|
||||||
|
|
||||||
|
# Returns first non-symlink:
|
||||||
|
|
||||||
|
assert "x" realpath_follow x
|
||||||
|
ln -s y x
|
||||||
|
assert "y" realpath_follow x
|
||||||
|
ln -s z y
|
||||||
|
assert "z" realpath_follow x
|
||||||
|
|
||||||
|
# or last symlink before recursion sets in:
|
||||||
|
|
||||||
|
ln -s x z
|
||||||
|
assert "z" realpath_follow x
|
||||||
|
assert "y" realpath_follow z
|
||||||
|
assert "x" realpath_follow y
|
||||||
|
|
||||||
|
# and relative-pathed symlinks are normalized to the symlink directory
|
||||||
|
|
||||||
|
mkdir q
|
||||||
|
assert "q/../z" realpath_follow q/../x
|
||||||
|
rm x y z; rmdir q
|
||||||
|
|
||||||
|
## realpath_canonical
|
||||||
|
|
||||||
|
# Current directory:
|
||||||
|
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$PWD" "$cmd" .
|
||||||
|
assert "$PWD" "$cmd" "$PWD"
|
||||||
|
done
|
||||||
|
|
||||||
|
# Nonexistent file:
|
||||||
|
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$PWD/x" "$cmd" x
|
||||||
|
assert "$PWD/x" "$cmd" "$PWD/x"
|
||||||
|
done
|
||||||
|
|
||||||
|
# Symlink to non-existent target:
|
||||||
|
|
||||||
|
ln -s y x
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$PWD/y" "$cmd" x
|
||||||
|
assert "$PWD/y" "$cmd" "$PWD/x"
|
||||||
|
done
|
||||||
|
|
||||||
|
|
||||||
|
# Symlink chain:
|
||||||
|
|
||||||
|
ln -s z y
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$PWD/z" "$cmd" x
|
||||||
|
assert "$PWD/z" "$cmd" "$PWD/x"
|
||||||
|
done
|
||||||
|
|
||||||
|
|
||||||
|
# Symlink loop breaks on the looper:
|
||||||
|
|
||||||
|
ln -s y z
|
||||||
|
# difference to realpath -m: returned path is the target
|
||||||
|
assert "$PWD/z" realpath_canonical x
|
||||||
|
assert "$PWD/y" realpath_m x
|
||||||
|
rm x y z
|
||||||
|
|
||||||
|
|
||||||
|
# Absolute links and directories:
|
||||||
|
|
||||||
|
touch y
|
||||||
|
mkdir z
|
||||||
|
ln -s $PWD/y x
|
||||||
|
ln -s $PWD/x z/x
|
||||||
|
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$PWD/y" "$cmd" x
|
||||||
|
assert "$PWD/y" "$cmd" z/x
|
||||||
|
done
|
||||||
|
|
||||||
|
ln -sf ../x z/x
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$PWD/y" "$cmd" x
|
||||||
|
assert "$PWD/y" "$cmd" z/x
|
||||||
|
done
|
||||||
|
|
||||||
|
ln -s z q
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$PWD/z" "$cmd" q
|
||||||
|
assert "$PWD/y" "$cmd" q/../x
|
||||||
|
assert "$PWD/z/a" "$cmd" q/a
|
||||||
|
done
|
||||||
|
|
||||||
|
## realpath_location
|
||||||
|
|
||||||
|
# Returns the absolute (but not canonical) location of the directory physically
|
||||||
|
# containing its target. Is equivalent to `realpath_absolute` if target isn't
|
||||||
|
# a symlink:
|
||||||
|
|
||||||
|
assert "$PWD" realpath_location x
|
||||||
|
assert "$PWD" realpath_location z
|
||||||
|
assert "$PWD/z" realpath_location z/a
|
||||||
|
assert "$PWD" realpath_location q/x # -> ../x
|
||||||
|
assert "$PWD/q" realpath_location q/foo
|
||||||
|
assert "$PWD" realpath_location q/../foo
|
||||||
|
assert "$PWD/q/foo" realpath_location q/foo/bar
|
||||||
|
|
||||||
|
### Missing elements
|
||||||
|
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$PWD/z/foo/bar/baz" "$cmd" q/foo/bar/baz
|
||||||
|
assert "$PWD/z/foo/bar" "$cmd" q/foo/bar
|
||||||
|
assert /non-existent "$cmd" /non-existent
|
||||||
|
assert /etc/non-existent "$cmd" /etc/non-existent
|
||||||
|
done
|
||||||
|
|
||||||
|
### Subdirectories, accessible and inaccessible
|
||||||
|
|
||||||
|
# Works while the directory is accesible:
|
||||||
|
|
||||||
|
mkdir foo
|
||||||
|
cd foo
|
||||||
|
for cmd in realpath_canonical realpath_m; do
|
||||||
|
assert "$OLDPWD/z" "$cmd" "$OLDPWD/q"
|
||||||
|
assert "$OLDPWD/y" "$cmd" "$OLDPWD/q/x"
|
||||||
|
assert "$OLDPWD/y" "$cmd" "../q/x"
|
||||||
|
done
|
||||||
|
|
||||||
|
# realpath -m cannot operate on inaccessible $PWD
|
||||||
|
# We can follow symlinks even if $PWD is inaccessible:
|
||||||
|
|
||||||
|
rmdir ../foo
|
||||||
|
assert "$OLDPWD/z" realpath_canonical "$OLDPWD/q"
|
||||||
|
assert "$OLDPWD/y" realpath_canonical "../q/x"
|
||||||
|
|
||||||
|
# And we can do non-symlink canonicalizing on the base dir of the results:
|
||||||
|
|
||||||
|
assert "$OLDPWD/z" realpath_canonical "../z"
|
||||||
|
assert "$OLDPWD/z/foo" realpath_canonical "../z/foo"
|
||||||
|
assert "$OLDPWD/foo" realpath_canonical "../foo"
|
||||||
|
assert "$OLDPWD/z" realpath_canonical "../q"
|
||||||
|
|
||||||
|
cd ..
|
||||||
|
|
||||||
|
rm x y q z/x
|
||||||
|
rmdir z
|
||||||
|
|
||||||
|
echo "number of successes: $numok"
|
||||||
|
echo "number of failures: $numfail"
|
||||||
|
|
||||||
|
if [ "$numfail" -gt 0 ]; then
|
||||||
|
exit 1
|
||||||
|
fi
|
||||||
Loading…
Reference in a new issue