[PATCH 1/1] Add completion for zathura.

[doron.behar@gmail.com]

From: Doron Behar <doron.behar@gmail.com>

Make it aware of the plugins installed on the machine.
Use 2 spaces instead of tabs.
Use +functions[] for all helpers.
Make main file completion consider plugins dir.
Improve portability and use safer, more resources efficient when
evaluating files regex.
Small improvements to options' descriptions.
---
 Completion/X/Command/_zathura | 49 +++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 Completion/X/Command/_zathura

diff --git a/Completion/X/Command/_zathura b/Completion/X/Command/_zathura
new file mode 100644
index 000000000..29cec11f2
--- /dev/null
+++ b/Completion/X/Command/_zathura
@@ -0,0 +1,49 @@
+#compdef zathura
+
+(( $+functions[_zathura_files] )) ||
+_zathura_files(){
+  for plugins_dir in "${opt_args[-p]}" "${opt_args[--plugins-dir]}" "/usr/lib/zathura"; do
+    if ! [[ -z "${plugins_dir}" ]]; then
+      break
+    fi
+  done
+  local -a plugin_files=(${plugins_dir}/*.so)
+  if [[ -z "${plugin_files}" ]]; then
+    _message -r "no plugins found on plugins dir"
+    return
+  fi
+  local -a supported_filetypes
+  for pf in "${plugin_files[@]}"; do
+    if [[ $pf =~ "mupdf" ]]; then
+      supported_filetypes+="pdf"
+      supported_filetypes+="epub"
+      supported_filetypes+="xps"
+    elif [[ $pf =~ "poppler" ]]; then
+      supported_filetypes+="pdf"
+    else
+      supported_filetypes+="${${pf%.so}#${plugins_dir}}"
+    fi
+  done
+  local files_regex="*.{${supported_filetypes[1]},"
+  for (( i = 2 ; i < ${#supported_filetypes[*]}; i ++)); do
+    files_regex="${files_regex}""${supported_filetypes[$i]}"","
+  done
+  files_regex="${files_regex}""${supported_filetypes[-1]}""}"
+  _files -g "${files_regex}"
+}
+
+_arguments \
+  {-e,--reparent=}'[Reparents to window specified by xid]:XID: ' \
+  {-c,--config-dir=}'[Path to the config directory]:PATH:{_files -/}' \
+  {-d,--data-dir=}'[Path to the data directory]:PATH:{_files -/}' \
+  {-p,--plugins-dir=}'[Path to the directory containing plugins]:PATH:{_files -/}' \
+  {-w,--password=}"[The document's password]:PASSWORD: " \
+  {-P,--page=}'[Opens the document at the given page number]:NUMBER: ' \
+  {-l,--log-level=}'[Set log level]:LEVEL:(debug, info, warning, error)' \
+  {-x,--synctex-editor-command=}'[Set the synctex editor command]:COMMAND:_command' \
+  '--synctex-forward=[Jump to the given position]:INPUT: ' \
+  '--synctex-pid=[Instead of looking for an instance having the correct file opened, try only the instance with the given PID]:PID:_pids' \
+  '--fork[Fork into background]: : ' \
+  '(- :)--version[Display version string and exit]' \
+  '(- :)--help[Display help and exit]' \
+  '*:FILE:_zathura_files'
-- 
2.17.0