mirror of
https://github.com/python/cpython.git
synced 2026-10-29 02:45:15 +08:00
Itamar Oren
3e13407763
The shell `python-config` located its own prefix with unquoted command substitutions, so any whitespace in the installation path made it print an empty `--prefix` and `-I/include/...`-style paths while exiting 0. - Quote the substitutions and the argument loop (POSIX `sh`, no bashisms). - Exit 1 with a message when the script's directory cannot be resolved, instead of silently printing empty paths. - Replace `sed "s#$prefix#$prefix_real#"` with a `relocate` helper using parameter expansion, so `#`, `&`, `\` and regex metacharacters in either prefix are handled literally. Same first-occurrence semantics. - Add `test_python_config_sh_prefix_with_spaces`: runs the generated script from `…/path with spaces/bin/` and checks `--prefix`, `--exec-prefix`, `--includes` and empty stderr
140 lines
3.4 KiB
Bash
140 lines
3.4 KiB
Bash
#!/bin/sh
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# Keep this script in sync with python-config.in
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exit_with_usage ()
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{
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local usage
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usage="Usage: $0 --prefix|--exec-prefix|--includes|--libs|--cflags|--ldflags|--extension-suffix|--help|--abiflags|--configdir|--embed"
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if [ "$1" -eq 0 ]; then
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printf '%s\n' "$usage"
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else
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printf '%s\n' "$usage" >&2
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fi
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exit $1
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}
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if [ "$1" = "" ] ; then
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exit_with_usage 1
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fi
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# Returns the actual prefix where this script was installed to.
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# Fails if the directory containing this script cannot be resolved.
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installed_prefix ()
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{
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RESULT=$(cd "$(dirname "$1")" && pwd -P) || return 1
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RESULT=$(dirname "$RESULT")
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if which readlink >/dev/null 2>&1 ; then
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if readlink -f "$RESULT" >/dev/null 2>&1; then
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RESULT=$(readlink -f "$RESULT")
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fi
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fi
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printf '%s\n' "$RESULT"
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}
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prefix_real=$(installed_prefix "$0") || {
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printf '%s\n' "$0: cannot determine the installation prefix" >&2
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exit 1
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}
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# Fix paths from their built-to locations to their installed-to locations
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# by replacing the first occurrence of the configured prefix with the actual
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# one. Keep prefix & exec_prefix using their original values in case
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# they are referenced in other configure variables, to prevent double
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# substitution, issue #22140.
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prefix="@prefix@"
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exec_prefix="@exec_prefix@"
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exec_prefix_real=${prefix_real}
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relocate ()
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{
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case "$1" in
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*"$prefix"*)
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printf '%s\n' "${1%%"$prefix"*}${prefix_real}${1#*"$prefix"}"
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;;
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*)
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printf '%s\n' "$1"
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;;
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esac
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}
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includedir=$(relocate "@includedir@")
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libdir=$(relocate "@libdir@")
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CFLAGS=$(relocate "@CFLAGS@")
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VERSION="@VERSION@"
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LIBM="@LIBM@"
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LIBC="@LIBC@"
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SYSLIBS="$LIBM $LIBC"
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ABIFLAGS="@ABIFLAGS@"
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LIBS="@LIBPYTHON@ @LIBS@ $SYSLIBS"
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LIBS_EMBED="-lpython${VERSION}${ABIFLAGS} @LIBS@ $SYSLIBS"
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BASECFLAGS="@BASECFLAGS@"
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LDLIBRARY="@LDLIBRARY@"
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OPT="@OPT@"
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PY_ENABLE_SHARED="@PY_ENABLE_SHARED@"
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LDVERSION="@LDVERSION@"
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LIBDEST=${prefix_real}/lib/python${VERSION}
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LIBPL=$(relocate "@LIBPL@")
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SO="@EXT_SUFFIX@"
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PYTHONFRAMEWORK="@PYTHONFRAMEWORK@"
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INCDIR="-I$includedir/python${VERSION}${ABIFLAGS}"
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PLATINCDIR="-I$includedir/python${VERSION}${ABIFLAGS}"
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PY_EMBED=0
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# Scan for --help or unknown argument.
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for ARG in "$@"
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do
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case "$ARG" in
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--help)
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exit_with_usage 0
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;;
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--embed)
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PY_EMBED=1
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;;
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--prefix|--exec-prefix|--includes|--libs|--cflags|--ldflags|--extension-suffix|--abiflags|--configdir)
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;;
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*)
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exit_with_usage 1
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;;
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esac
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done
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if [ $PY_EMBED = 1 ] ; then
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LIBS="$LIBS_EMBED"
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fi
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for ARG in "$@"
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do
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case "$ARG" in
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--prefix)
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printf '%s\n' "$prefix_real"
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;;
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--exec-prefix)
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printf '%s\n' "$exec_prefix_real"
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;;
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--includes)
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printf '%s\n' "$INCDIR $PLATINCDIR"
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;;
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--cflags)
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printf '%s\n' "$INCDIR $PLATINCDIR $BASECFLAGS $CFLAGS $OPT"
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;;
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--libs)
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printf '%s\n' "$LIBS"
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;;
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--ldflags)
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LIBPLUSED=
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if [ "$PY_ENABLE_SHARED" = "0" ] ; then
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LIBPLUSED="-L$LIBPL"
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fi
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printf '%s\n' "$LIBPLUSED -L$libdir $LIBS"
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;;
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--extension-suffix)
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printf '%s\n' "$SO"
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;;
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--abiflags)
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printf '%s\n' "$ABIFLAGS"
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;;
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--configdir)
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printf '%s\n' "$LIBPL"
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;;
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esac
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done
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