nixpkgs/pkgs/build-support/setup-hooks/patch-rc-path-hooks/patch-rc-path-csh.sh
Shamrock Lee da31bd5673 patchRcPathBash, patchRcPathCsh, patchRcPathFish, patchRcPathPosix: init
Init patchRcPath hooks, which provides
utilities to patch shell scripts to be sourced by users.

Add test cases and documentation.
2022-11-10 09:23:52 +08:00

57 lines
2.1 KiB
Bash

patchRcPathCsh(){
local FILE_TO_PATCH="$1"
local SOURCETIME_PATH="$2"
local FILE_TO_WORK_ON="$(mktemp "$(basename "$FILE_TO_PATCH").XXXXXX.tmp")"
cat <<EOF >> "$FILE_TO_WORK_ON"
# Lines to add to PATH the source-time utilities for Nixpkgs packaging
if (\$?NIXPKGS_SOURCETIME_PATH) then
if ("\$NIXPKGS_SOURCETIME_PATH" != "") then
if (\$?NIXPKGS_SOURCETIME_PATH_OLD) then
if ("\$NIXPKGS_SOURCETIME_PATH_OLD" != "")
set NIXPKGS_SOURCETIME_PATH_OLD = (\$NIXPKGS_SOURCETIME_PATH \$NIXPKGS_SOURCETIME_PATH_OLD)
else
set NIXPKGS_SOURCETIME_PATH_OLD = \$NIXPKGS_SOURCETIME_PATH
endif
else
set NIXPKGS_SOURCETIME_PATH_OLD = \$NIXPKGS_SOURCETIME_PATH
endif
endif
endif
set NIXPKGS_SOURCETIME_PATH = "$SOURCETIME_PATH"
if (! \$?PATH) then
setenv PATH ""
endif
if ("\$PATH" != "") then
setenv PATH "\${NIXPKGS_SOURCETIME_PATH}:\$PATH"
else
setenv PATH "\$NIXPKGS_SOURCETIME_PATH"
endif
# End of lines to add to PATH source-time utilities for Nixpkgs packaging
EOF
cat "$FILE_TO_PATCH" >> "$FILE_TO_WORK_ON"
cat <<EOF >> "$FILE_TO_WORK_ON"
# Lines to clean up inside PATH the source-time utilities for Nixpkgs packaging
if (\$?PATH) then
if ("\$PATH" != "") then
# Remove the inserted section, the duplicated colons, and the leading and trailing colon
setenv PATH \`echo "\$PATH" | @sed@ "s#\${NIXPKGS_SOURCETIME_PATH}##" | @sed@ "s#::#:#g" | @sed@ "s#^:##" | @sed@ 's#:\$##'\`
endif
endif
if (\$?NIXPKGS_SOURCETIME_PATH_OLD) then
if ("\$NIXPKGS_SOURCETIME_PATH_OLD" != "") then
set NIXPKGS_SOURCETIME_PATH = \$NIXPKGS_SOURCETIME_PATH_OLD[1]
set NIXPKGS_SOURCETIME_PATH_OLD = \$NIXPKGS_SOURCETIME_PATH_OLD[2-]
else
unset NIXPKGS_SOURCETIME_PATH
endif
if (NIXPKGS_SOURCETIME_PATH_OLD == "") then
unset NIXPKGS_SOURCETIME_PATH_OLD
endif
else
unset NIXPKGS_SOURCETIME_PATH
endif
# End of lines to clean up inside PATH the source-time utilities for Nixpkgs packaging
EOF
cat "$FILE_TO_WORK_ON" > "$FILE_TO_PATCH"
rm "$FILE_TO_WORK_ON"
}