[gentoo-dev] [PATCH] texlive-common.eclass: Add TEXLIVE_SCRIPTS_W_FILE_EXT variable

[Florian Schmaus <flow@gentoo.org>]

Some scripts are supposed to be installed with file extensions [1, 2]. Add
support for declaring those scripts in a new elcass variable
TEXLIVE_SCRIPTS_W_FILE_EXT.

Also use pure-bash functions to retrieve the basename and strip the file
extensions. And use "declare -l" to lowercase the value of 'trg',
instead of 'tr' [3].

1: https://tug.org/pipermail/tldistro/2024q3/000485.html
2: https://github.com/TeX-Live/texlive-source/blob/c087bab35570b1d5cb0afd272611a7a4ec3c9e38/texk/texlive/linked_scripts/Makefile.am#L332-L333
3: https://github.com/TeX-Live/texlive-source/blob/c087bab35570b1d5cb0afd272611a7a4ec3c9e38/texk/texlive/linked_scripts/Makefile.am#L330

Bug: https://bugs.gentoo.org/934975
Signed-off-by: Florian Schmaus <flow@gentoo.org>
---
 eclass/texlive-common.eclass | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/eclass/texlive-common.eclass b/eclass/texlive-common.eclass
index 072581dde78e..36b90a327fde 100644
--- a/eclass/texlive-common.eclass
+++ b/eclass/texlive-common.eclass
@@ -42,6 +42,13 @@ _TEXLIVE_COMMON_ECLASS=1
 # @CODE
 : "${CTAN_MIRROR_URL:="https://mirrors.ctan.org"}"
 
+# @ECLASS_VARIABLE: TEXLIVE_SCRIPTS_W_FILE_EXT
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# If set, contains a space separated list of script names that should be
+# linked including their file extensions, i.e., without stripping
+# potentially existing filename extensions from the link's name.
+
 # @FUNCTION: texlive-common_handle_config_files
 # @DESCRIPTION:
 # Has to be called in src_install after having installed the files in ${D}
@@ -160,8 +167,17 @@ etexlinks() {
 # Called by app-text/epspdf and texlive-module.eclass.
 dobin_texmf_scripts() {
 	while [[ ${#} -gt 0 ]] ; do
-		local trg
-		trg=$(basename "${1}" | sed 's,\.[^/]*$,,' | tr '[:upper:]' '[:lower:]')
+		# -l: TexLive target links are always lowercase.
+		local -l trg
+
+		# Get the basename of the script.
+		trg="${1##*/}"
+
+		# Only strip the filename extensions if trg is not listed in TEXLIVE_SCRIPTS_W_FILE_EXT.
+		if ! has "${trg}" ${TEXLIVE_SCRIPTS_W_FILE_EXT}; then
+			trg="${trg%.*}"
+		fi
+
 		einfo "Installing ${1} as ${trg} bin wrapper"
 		[[ -x ${ED}/usr/share/${1} ]] || die "Trying to install a non existing or non executable symlink to /usr/bin: ${1}"
 		dosym "../share/${1}" "/usr/bin/${trg}"
-- 
2.44.2