Add bash-completion for augtool, augmatch, augprint (#783)

Co-authored-by: George Hansper <[email protected]>

augeas.spec.in

@@ -104,6 +104,7 @@ rm -rf $RPM_BUILD_ROOT
 %doc %{_mandir}/man1/*
 %{_datadir}/vim/vimfiles/syntax/augeas.vim
 %{_datadir}/vim/vimfiles/ftdetect/augeas.vim
+%{bash_completions_dir}/*-completion.bash
 
 %files libs
 %defattr(-,root,root,-)
@@ -126,6 +127,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/libfa.a
 
 %changelog
+* Sun Nov 20 2022 George Hansper <[email protected]> - 1.14.0
+- add bash completions
+
 * Fri Mar 17 2017 David Lutterkort <[email protected]> - 1.8.0-1
 - add static subpackage
 

configure.ac

@@ -140,3 +140,8 @@ AC_OUTPUT(Makefile \
 	  doc/Makefile \
 	  doc/naturaldocs/Makefile \
           augeas.pc augeas.spec)
+
+# Bash completion ...
+PKG_CHECK_VAR(bashcompdir, [bash-completion], [completionsdir], ,
+  bashcompdir="${sysconfdir}/bash_completion.d")
+AC_SUBST(bashcompdir)

src/Makefile.am

@@ -71,3 +71,8 @@ FORCE-datadir.h: Makefile
 	$(top_srcdir)/build/ac-aux/move-if-change datadir.h1 datadir.h
 
 datadir.h: FORCE-datadir.h
+
+#bashcompdir = @bashcompdir@
+bashcompdir = $(datadir)/bash-completion/completions
+dist_bashcomp_DATA = augtool-completion.bash augmatch-completion.bash augprint-completion.bash
+

src/augmatch-completion.bash

@@ -0,0 +1,33 @@
+# bash completion for augtool                               -*- shell-script -*-
+
+_augmatch()
+{
+    local cur prev words cword
+    _init_completion || return
+
+    case $prev in
+        --help | -!(-*)[h])
+            return
+            ;;
+        --lens | -!(-*)[l])
+            local lenses
+            lenses="$(augtool --noload 'match /augeas/load/*/lens' | sed -e 's/.*@//')"
+					  COMPREPLY=($(compgen -W "${lenses,,}" -- "${cur,,}"))
+            return
+						;;
+        --root | --include | -!(-*)[rI])
+            _filedir -d
+            return
+            ;;
+    esac
+
+    if [[ "$cur" == -* ]]; then
+        local opts="$(_parse_help "$1")"
+        COMPREPLY=($(compgen -W '${opts:-$(_parse_help "$1")}' -- "$cur"))
+		else
+        _filedir
+		fi
+} &&
+    complete -F _augmatch augmatch
+
+# ex: filetype=sh

src/augprint-completion.bash

@@ -0,0 +1,33 @@
+# bash completion for augtool                               -*- shell-script -*-
+
+_augprint()
+{
+    local cur prev words cword
+    _init_completion || return
+
+    case $prev in
+        --help | --version | -!(-*)[hV])
+            return
+            ;;
+        --target | -!(-*)[t])
+            _filedir
+            return
+            ;;
+        --lens | -!(-*)[l])
+            local lenses
+            lenses="$(augtool --noload 'match /augeas/load/*/lens' | sed -e 's/.*@//')"
+					  COMPREPLY=($(compgen -W "${lenses,,}" -- "${cur,,}"))
+            return
+						;;
+    esac
+
+    if [[ "$cur" == -* ]]; then
+        local opts="$(_parse_help "$1")"
+        COMPREPLY=($(compgen -W '${opts:-$(_parse_help "$1")}' -- "$cur"))
+		else
+        _filedir
+		fi
+} &&
+    complete -F _augprint augprint
+
+# ex: filetype=sh

src/augtool-completion.bash

@@ -0,0 +1,29 @@
+# bash completion for augtool                               -*- shell-script -*-
+
+_augtool()
+{
+    local cur prev words cword
+    _init_completion || return
+
+    case $prev in
+        --help | --version | -!(-*)[hV])
+            return
+            ;;
+        --load-file | --file | -!(-*)[lf])
+            _filedir
+            return
+            ;;
+        --root | --include | -!(-*)[rI])
+            _filedir -d
+            return
+            ;;
+    esac
+
+    if [[ "$cur" == -* ]]; then
+        local opts="$(_parse_help "$1")"
+        COMPREPLY=($(compgen -W '${opts:-$(_parse_help "$1")}' -- "$cur"))
+		fi
+} &&
+    complete -F _augtool augtool
+
+# ex: filetype=sh