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| author |   Michał Górny <mgorny@gentoo.org> | 2015-11-15 10:20:22 +0100 |
|---|---|---|
| committer | Michał Górny <mgorny@gentoo.org> | 2015-11-28 20:09:06 +0100 |
| commit | 09475a2f59254b3a0247bab6937084e28b634d37 (patch) | |
| tree | a07027a570bae6b0d8bb84bd1f8496d67b3c3c38 /eclass/python-utils-r1.eclass | |
| parent | fortran-2.eclass: Fix for missing case end (diff) | |
| download | gentoo-09475a2f59254b3a0247bab6937084e28b634d37.tar.gz gentoo-09475a2f59254b3a0247bab6937084e28b634d37.tar.bz2 gentoo-09475a2f59254b3a0247bab6937084e28b634d37.zip | |
python-utils-r1.eclass: python_export_utf8_locale(), ensure sane locale
Ensure that the locale selected by python_export_utf8_locale() conforms
to POSIX-ish case conversions. Otherwise, we may accidentally force
a locale that will break random ebuilds and programs.
Diffstat (limited to 'eclass/python-utils-r1.eclass')
| -rw-r--r-- | eclass/python-utils-r1.eclass | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/eclass/python-utils-r1.eclass b/eclass/python-utils-r1.eclass index 6ff1dd17bab2..5e3338f35b53 100644 --- a/eclass/python-utils-r1.eclass +++ b/eclass/python-utils-r1.eclass @@ -1141,6 +1141,24 @@ python_fix_shebang() { done } +# @FUNCTION: _python_check_locale_sanity +# @USAGE: <locale> +# @RETURN: 0 if sane, 1 otherwise +# @DESCRIPTION: +# Check whether the specified locale sanely maps between lowercase +# and uppercase ASCII characters. +_python_check_locale_sanity() { + local -x LC_CTYPE=${1} + local IFS= + + local lc=( {a..z} ) + local uc=( {A..Z} ) + local input=${lc[*]}${uc[*]} + + local output=$(tr '[:lower:][:upper:]' '[:upper:][:lower:]' <<<"${input}") + [[ ${output} == "${uc[*]}${lc[*]}" ]] +} + # @FUNCTION: python_export_utf8_locale # @RETURN: 0 on success, 1 on failure. # @DESCRIPTION: @@ -1165,8 +1183,10 @@ python_export_utf8_locale() { for lang in ${locales}; do if [[ $(LC_CTYPE=${lang} locale charmap 2>/dev/null) == UTF-8 ]]; then - export LC_CTYPE=${lang} - return 0 + if _python_check_locale_sanity "${lang}"; then + export LC_CTYPE=${lang} + return 0 + fi fi done |