diff options
Diffstat (limited to 'build-aux/install-sh')
| -rwxr-xr-x | build-aux/install-sh | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/build-aux/install-sh b/build-aux/install-sh index b34a8fc5ab9..ec298b53740 100755 --- a/build-aux/install-sh +++ b/build-aux/install-sh @@ -1,7 +1,7 @@ #!/bin/sh # install - install a program, script, or datafile -scriptversion=2020-07-26.22; # UTC +scriptversion=2020-11-14.01; # UTC # This originates from X11R5 (mit/util/scripts/install.sh), which was # later released in X11R6 (xc/config/util/install.sh) with the @@ -73,6 +73,7 @@ mode=0755 # This is like GNU 'install' as of coreutils 8.32 (2020). mkdir_umask=22 +backupsuffix= chgrpcmd= chmodcmd=$chmodprog chowncmd= @@ -103,18 +104,28 @@ Options: --version display version info and exit. -c (ignored) - -C install only if different (preserve the last data modification time) + -C install only if different (preserve 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. + -p pass -p to $cpprog. -s $stripprog installed files. + -S SUFFIX attempt to back up existing files, with suffix SUFFIX. -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 + +By default, rm is invoked with -f; when overridden with RMPROG, +it's up to you to specify -f if you want it. + +If -S is not specified, no backups are attempted. + +Email bug reports to bug-automake@gnu.org. +Automake home page: https://www.gnu.org/software/automake/ " while test $# -ne 0; do @@ -141,8 +152,13 @@ while test $# -ne 0; do -o) chowncmd="$chownprog $2" shift;; + -p) cpprog="$cpprog -p";; + -s) stripcmd=$stripprog;; + -S) backupsuffix="$2" + shift;; + -t) is_target_a_directory=always dst_arg=$2 @@ -259,6 +275,10 @@ do dstdir=$dst test -d "$dstdir" dstdir_status=$? + # Don't chown directories that already exist. + if test $dstdir_status = 0; then + chowncmd="" + fi else # Waiting for this to be detected by the "$cpprog $src $dsttmp" command @@ -473,6 +493,13 @@ do then rm -f "$dsttmp" else + # If $backupsuffix is set, and the file being installed + # already exists, attempt a backup. Don't worry if it fails, + # e.g., if mv doesn't support -f. + if test -n "$backupsuffix" && test -f "$dst"; then + $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null + fi + # Rename the file to the real destination. $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || @@ -487,9 +514,9 @@ do # file should still install successfully. { test ! -f "$dst" || - $doit $rmcmd -f "$dst" 2>/dev/null || + $doit $rmcmd "$dst" 2>/dev/null || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && - { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } + { $doit $rmcmd "$rmtmp" 2>/dev/null; :; } } || { echo "$0: cannot unlink or rename $dst" >&2 (exit 1); exit 1 |