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cpython/install-sh
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executable file 519 lines (448 sloc) 15 KB
#!/bin/sh
# install - install a program, script, or datafile
scriptversion=2018-03-11.20;# UTC
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# following copyright and license.
#
# Copyright (C) 1994 X Consortium
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not
# be used in advertising or otherwise to promote the sale, use or other deal-
# ings in this Software without prior written authorization from the X Consor-
# tium.
#
#
# FSF changes to this file are in the public domain.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# 'make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.
tab=''
nl='
'
IFS="$tab$nl"
# Set DOITPROG to "echo" to test this script.
doit=${DOITPROG-}
doit_exec=${doit:-exec}
# Put in absolute file names if you don't have them in your path;
# or use environment vars.
chgrpprog=${CHGRPPROG-chgrp}
chmodprog=${CHMODPROG-chmod}
chownprog=${CHOWNPROG-chown}
cmpprog=${CMPPROG-cmp}
cpprog=${CPPROG-cp}
mkdirprog=${MKDIRPROG-mkdir}
mvprog=${MVPROG-mv}
rmprog=${RMPROG-rm}
stripprog=${STRIPPROG-strip}
posix_mkdir=
# Desired mode of installed file.
mode=0755
chgrpcmd=
chmodcmd=$chmodprog
chowncmd=
mvcmd=$mvprog
rmcmd="$rmprog -f"
stripcmd=
src=
dst=
dir_arg=
dst_arg=
copy_on_change=false
is_target_a_directory=possibly
usage="\
Usage:$0 [OPTION]... [-T] SRCFILE DSTFILE
or:$0 [OPTION]... SRCFILES... DIRECTORY
or:$0 [OPTION]... -t DIRECTORY SRCFILES...
or:$0 [OPTION]... -d DIRECTORIES...
In the 1st form, copy SRCFILE to DSTFILE.
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
In the 4th, create DIRECTORIES.
Options:
--help display this help and exit.
--version display version info and exit.
-c (ignored)
-C install only if different (preserve the last data modification time)
-d create directories instead of installing files.
-g GROUP$chgrpprog installed files to GROUP.
-m MODE$chmodprog installed files to MODE.
-o USER$chownprog installed files to USER.
-s$stripprog installed files.
-t DIRECTORY install into DIRECTORY.
-T report an error if DSTFILE is a directory.
Environment variables override the default commands:
CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
RMPROG STRIPPROG
"
whiletest$# -ne 0;do
case$1in
-c) ;;
-C) copy_on_change=true;;
-d) dir_arg=true;;
-g) chgrpcmd="$chgrpprog$2"
shift;;
--help)echo"$usage";exit$?;;
-m) mode=$2
case$modein
*''* |*"$tab"* |*"$nl"* |*'*'* |*'?'* |*'['*)
echo"$0: invalid mode:$mode">&2
exit 1;;
esac
shift;;
-o) chowncmd="$chownprog$2"
shift;;
-s) stripcmd=$stripprog;;
-t)
is_target_a_directory=always
dst_arg=$2
# Protect names problematic for 'test' and other utilities.
case$dst_argin
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
shift;;
-T) is_target_a_directory=never;;
--version)echo"$0$scriptversion";exit$?;;
--)shift
break;;
-*)echo"$0: invalid option:$1">&2
exit 1;;
*)break;;
esac
shift
done
# We allow the use of options -d and -T together, by making -d
# take the precedence; this is for compatibility with GNU install.
iftest -n"$dir_arg";then
iftest -n"$dst_arg";then
echo"$0: target directory not allowed when installing a directory.">&2
exit 1
fi
fi
iftest$# -ne 0&&test -z"$dir_arg$dst_arg";then
# When -d is used, all remaining arguments are directories to create.
# When -t is used, the destination is already specified.
# Otherwise, the last argument is the destination. Remove it from $@.
for arg
do
iftest -n"$dst_arg";then
# $@ is not empty: it contains at least $arg.
set fnord"$@""$dst_arg"
shift# fnord
fi
shift# arg
dst_arg=$arg
# Protect names problematic for 'test' and other utilities.
case$dst_argin
-* | [=\(\)!]) dst_arg=./$dst_arg;;
esac
done
fi
iftest$# -eq 0;then
iftest -z"$dir_arg";then
echo"$0: no input file specified.">&2
exit 1
fi
# It's OK to call 'install-sh -d' without argument.
# This can happen when creating conditional directories.
exit 0
fi
iftest -z"$dir_arg";then
iftest$# -gt 1||test"$is_target_a_directory" = always;then
iftest! -d"$dst_arg";then
echo"$0:$dst_arg: Is not a directory.">&2
exit 1
fi
fi
fi
iftest -z"$dir_arg";then
do_exit='(exit $ret); exit $ret'
trap"ret=129;$do_exit" 1
trap"ret=130;$do_exit" 2
trap"ret=141;$do_exit" 13
trap"ret=143;$do_exit" 15
# Set umask so as not to create temps with too-generous modes.
# However, 'strip' requires both read and write access to temps.
case$modein
# Optimize common cases.
*644) cp_umask=133;;
*755) cp_umask=22;;
*[0-7])
iftest -z"$stripcmd";then
u_plus_rw=
else
u_plus_rw='% 200'
fi
cp_umask=`expr'(' 777 -$mode % 1000')'$u_plus_rw`;;
*)
iftest -z"$stripcmd";then
u_plus_rw=
else
u_plus_rw=,u+rw
fi
cp_umask=$mode$u_plus_rw;;
esac
fi
for src
do
# Protect names problematic for 'test' and other utilities.
case$srcin
-* | [=\(\)!]) src=./$src;;
esac
iftest -n"$dir_arg";then
dst=$src
dstdir=$dst
test -d"$dstdir"
dstdir_status=$?
else
# Waiting for this to be detected by the "$cpprog $src $dsttmp" command
# might cause directories to be created, which would be especially bad
# if $src (and thus $dsttmp) contains '*'.
iftest! -f"$src"&&test! -d"$src";then
echo"$0:$src does not exist.">&2
exit 1
fi
iftest -z"$dst_arg";then
echo"$0: no destination specified.">&2
exit 1
fi
dst=$dst_arg
# If destination is a directory, append the input filename.
iftest -d"$dst";then
iftest"$is_target_a_directory" = never;then
echo"$0:$dst_arg: Is a directory">&2
exit 1
fi
dstdir=$dst
dstbase=`basename"$src"`
case$dstin
*/) dst=$dst$dstbase;;
*) dst=$dst/$dstbase;;
esac
dstdir_status=0
else
dstdir=`dirname"$dst"`
test -d"$dstdir"
dstdir_status=$?
fi
fi
case$dstdirin
*/) dstdirslash=$dstdir;;
*) dstdirslash=$dstdir/;;
esac
obsolete_mkdir_used=false
iftest$dstdir_status!= 0;then
case$posix_mkdirin
'')
# Create intermediate dirs using mode 755 as modified by the umask.
# This is like FreeBSD 'install' as of 1997-10-28.
umask=`umask`
case$stripcmd.$umaskin
# Optimize common cases.
*[2367][2367]) mkdir_umask=$umask;;
.*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
*[0-7])
mkdir_umask=`expr$umask + 22 \
-$umask % 100 % 40 +$umask % 20 \
-$umask % 10 % 4 +$umask % 2
`;;
*) mkdir_umask=$umask,go-w;;
esac
# With -d, create the new directory with the user-specified mode.
# Otherwise, rely on $mkdir_umask.
iftest -n"$dir_arg";then
mkdir_mode=-m$mode
else
mkdir_mode=
fi
posix_mkdir=false
case$umaskin
*[123567][0-7][0-7])
# POSIX mkdir -p sets u+wx bits regardless of umask, which
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
;;
*)
# Note that $RANDOM variable is not portable (e.g. dash); Use it
# here however when possible just to lower collision chance.
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
trap'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
# Because "mkdir -p" follows existing symlinks and we likely work
# directly in world-writeable /tmp, make sure that the '$tmpdir'
# directory is successfully created first before we actually test
# 'mkdir -p' feature.
if (umask$mkdir_umask&&
$mkdirprog$mkdir_mode"$tmpdir"&&
exec$mkdirprog$mkdir_mode -p --"$tmpdir/a/b")>/dev/null2>&1
then
iftest -z"$dir_arg"|| {
# Check for POSIX incompatibilities with -m.
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
# other-writable bit of parent directory when it shouldn't.
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
test_tmpdir="$tmpdir/a"
ls_ld_tmpdir=`ls -ld"$test_tmpdir"`
case$ls_ld_tmpdirin
d????-?r-*) different_mode=700;;
d????-?--*) different_mode=755;;
*)false;;
esac&&
$mkdirprog -m$different_mode -p --"$test_tmpdir"&& {
ls_ld_tmpdir_1=`ls -ld"$test_tmpdir"`
test"$ls_ld_tmpdir" ="$ls_ld_tmpdir_1"
}
}
then posix_mkdir=:
fi
rmdir"$tmpdir/a/b""$tmpdir/a""$tmpdir"
else
# Remove any dirs left behind by ancient mkdir implementations.
rmdir ./$mkdir_mode ./-p ./--"$tmpdir"2>/dev/null
fi
trap'' 0;;
esac;;
esac
if
$posix_mkdir&& (
umask$mkdir_umask&&
$doit_exec$mkdirprog$mkdir_mode -p --"$dstdir"
)
then:
else
# The umask is ridiculous, or mkdir does not conform to POSIX,
# or it failed possibly due to a race condition. Create the
# directory the slow way, step by step, checking for races as we go.
case$dstdirin
/*) prefix='/';;
[-=\(\)!]*) prefix='./';;
*) prefix='';;
esac
oIFS=$IFS
IFS=/
set -f
set fnord$dstdir
shift
set +f
IFS=$oIFS
prefixes=
for d
do
test X"$d" = X&&continue
prefix=$prefix$d
iftest -d"$prefix";then
prefixes=
else
if$posix_mkdir;then
(umask=$mkdir_umask&&
$doit_exec$mkdirprog$mkdir_mode -p --"$dstdir")&&break
# Don't fail if two instances are running concurrently.
test -d"$prefix"||exit 1
else
case$prefixin
*\'*) qprefix=`echo"$prefix"| sed"s/'/'\\\\\\\\''/g"`;;
*) qprefix=$prefix;;
esac
prefixes="$prefixes '$qprefix'"
fi
fi
prefix=$prefix/
done
iftest -n"$prefixes";then
# Don't fail if two instances are running concurrently.
(umask$mkdir_umask&&
eval"\$doit_exec\$mkdirprog$prefixes")||
test -d"$dstdir"||exit 1
obsolete_mkdir_used=true
fi
fi
fi
iftest -n"$dir_arg";then
{test -z"$chowncmd"||$doit$chowncmd"$dst"; }&&
{test -z"$chgrpcmd"||$doit$chgrpcmd"$dst"; }&&
{test"$obsolete_mkdir_used$chowncmd$chgrpcmd" =false||
test -z"$chmodcmd"||$doit$chmodcmd$mode"$dst"; }||exit 1
else
# Make a couple of temp file names in the proper directory.
dsttmp=${dstdirslash}_inst.$$_
rmtmp=${dstdirslash}_rm.$$_
# Trap to clean up those temp files at exit.
trap'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
# Copy the file name to the temp name.
(umask$cp_umask&&$doit_exec$cpprog"$src""$dsttmp")&&
# and set any options; do chmod last to preserve setuid bits.
#
# If any of these fail, we abort the whole thing. If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $cpprog $src $dsttmp" command.
#
{test -z"$chowncmd"||$doit$chowncmd"$dsttmp"; }&&
{test -z"$chgrpcmd"||$doit$chgrpcmd"$dsttmp"; }&&
{test -z"$stripcmd"||$doit$stripcmd"$dsttmp"; }&&
{test -z"$chmodcmd"||$doit$chmodcmd$mode"$dsttmp"; }&&
# If -C, don't bother to copy if it wouldn't change the file.
if$copy_on_change&&
old=`LC_ALL=C ls -dlL"$dst"2>/dev/null`&&
new=`LC_ALL=C ls -dlL"$dsttmp"2>/dev/null`&&
set -f&&
set X$old&& old=:$2:$4:$5:$6&&
set X$new&& new=:$2:$4:$5:$6&&
set +f&&
test"$old" ="$new"&&
$cmpprog"$dst""$dsttmp">/dev/null2>&1
then
rm -f"$dsttmp"
else
# Rename the file to the real destination.
$doit$mvcmd -f"$dsttmp""$dst"2>/dev/null||
# The rename failed, perhaps because mv can't rename something else
# to itself, or perhaps because mv is so ancient that it does not
# support -f.
{
# Now remove or move aside any old file at destination location.
# We try this two ways since rm can't unlink itself on some
# systems and the destination file might be busy for other
# reasons. In this case, the final cleanup might fail but the new
# file should still install successfully.
{
test! -f"$dst"||
$doit$rmcmd -f"$dst"2>/dev/null||
{$doit$mvcmd -f"$dst""$rmtmp"2>/dev/null&&
{$doit$rmcmd -f"$rmtmp"2>/dev/null;:; }
}||
{echo"$0: cannot unlink or rename$dst">&2
(exit 1);exit 1
}
}&&
# Now rename the file to the real destination.
$doit$mvcmd"$dsttmp""$dst"
}
fi||exit 1
trap'' 0
fi
done
# Local variables:
# eval: (add-hook 'before-save-hook 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End:
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