Merge pull request #4371 from rouault/projinfo_bash_completion

Add bash completion script for projinfo

Author: rouault

CMakeLists.txt

@@ -415,6 +415,8 @@ if(BUILD_EXAMPLES)
   add_subdirectory(examples)
 endif()
 
+add_subdirectory(scripts)
+
 set(docfiles COPYING NEWS.md AUTHORS.md)
 install(FILES ${docfiles}
         DESTINATION ${CMAKE_INSTALL_DOCDIR})
@@ -459,7 +461,6 @@ set(CPACK_SOURCE_IGNORE_FILES
   /m4/libtool*
   /media/
   /schemas/
-  /scripts/
   /test/fuzzers/
   /test/gigs/.*gie\\.failing
   /test/postinstall/

scripts/CMakeLists.txt

@@ -0,0 +1,28 @@
+find_package(PkgConfig QUIET)
+if (PKG_CONFIG_FOUND)
+  pkg_check_modules(PC_BASH_COMPLETION QUIET bash-completion)
+  if (PC_BASH_COMPLETION_FOUND)
+    pkg_get_variable(BASH_COMPLETIONS_FULL_DIR bash-completion completionsdir)
+    pkg_get_variable(BASH_COMPLETIONS_PREFIX bash-completion prefix)
+    if (BASH_COMPLETIONS_FULL_DIR
+        AND BASH_COMPLETIONS_PREFIX
+        AND BASH_COMPLETIONS_FULL_DIR MATCHES "^${BASH_COMPLETIONS_PREFIX}/")
+      string(REGEX REPLACE "^${BASH_COMPLETIONS_PREFIX}/" "" BASH_COMPLETIONS_DIR_DEFAULT ${BASH_COMPLETIONS_FULL_DIR})
+    endif ()
+  endif ()
+endif ()
+
+if (NOT DEFINED BASH_COMPLETIONS_DIR_DEFAULT)
+  include(GNUInstallDirs)
+  set(BASH_COMPLETIONS_DIR_DEFAULT ${CMAKE_INSTALL_DATADIR}/bash-completion/completions)
+endif ()
+
+set(BASH_COMPLETIONS_DIR
+    "${BASH_COMPLETIONS_DIR_DEFAULT}"
+    CACHE PATH "Installation sub-directory for bash completion scripts")
+
+if (NOT BASH_COMPLETIONS_DIR STREQUAL "")
+  configure_file(${CMAKE_CURRENT_SOURCE_DIR}/install_bash_completions.cmake.in
+                 ${CMAKE_CURRENT_BINARY_DIR}/install_bash_completions.cmake @ONLY)
+  install(SCRIPT ${CMAKE_CURRENT_BINARY_DIR}/install_bash_completions.cmake)
+endif ()

scripts/install_bash_completions.cmake.in

@@ -0,0 +1,13 @@
+set(PROGRAMS
+    projinfo
+)
+
+set(INSTALL_DIR "$ENV{DESTDIR}${CMAKE_INSTALL_PREFIX}/@BASH_COMPLETIONS_DIR@")
+
+file(MAKE_DIRECTORY "${INSTALL_DIR}")
+
+foreach (program IN LISTS PROGRAMS)
+  message(STATUS "Installing ${INSTALL_DIR}/${program}")
+  configure_file("@CMAKE_CURRENT_SOURCE_DIR@/${program}-bash-completion.sh" "${INSTALL_DIR}/${program}" COPYONLY)
+  file(APPEND "@PROJECT_BINARY_DIR@/install_manifest_extra.txt" "${INSTALL_DIR}/${program}\n")
+endforeach ()

scripts/projinfo-bash-completion.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+
+function_exists() {
+    declare -f -F "$1" > /dev/null
+    return $?
+}
+
+# Checks that bash-completion is recent enough
+function_exists _get_comp_words_by_ref || return 0
+
+_projinfo()
+{
+  local cur prev
+  COMPREPLY=()
+  _get_comp_words_by_ref cur prev
+  choices=$(projinfo completion ${COMP_LINE})
+  if [[ "$cur" == "=" ]]; then
+    mapfile -t COMPREPLY < <(compgen -W "$choices" --)
+  elif [[ "$cur" == ":" ]]; then
+    mapfile -t COMPREPLY < <(compgen -W "$choices" --)
+  elif [[ "${cur: -1}" == "/" ]]; then
+    mapfile -t COMPREPLY < <(compgen -W "$choices" --)
+  elif [[ "${cur: -2}" == "/ " ]]; then
+    mapfile -t COMPREPLY < <(compgen -W "$choices" --)
+  elif [[ "${cur: -1}" == "+" ]]; then
+    mapfile -t COMPREPLY < <(compgen -W "$choices" --)
+  elif [[ "${cur: -2}" == "+ " ]]; then
+    mapfile -t COMPREPLY < <(compgen -W "$choices" --)
+  elif [[ "$cur" == "!" ]]; then
+    mapfile -t COMPREPLY < <(compgen -W "$choices" -P "! " --)
+  else
+    mapfile -t COMPREPLY < <(compgen -W "$choices" -- "$cur")
+  fi
+  for element in "${COMPREPLY[@]}"; do
+    if [[ $element == */ ]]; then
+      # Do not add a space if one of the suggestion ends with slash
+      compopt -o nospace
+      break
+    elif [[ $element == *= ]]; then
+      # Do not add a space if one of the suggestion ends with equal
+      compopt -o nospace
+      break
+    elif [[ $element == *: ]]; then
+      # Do not add a space if one of the suggestion ends with colon
+      compopt -o nospace
+      break
+    fi
+  done
+}
+complete -o default -F _projinfo projinfo
+