Update i18n meta data handling script

i18n.nu

@@ -1,45 +1,53 @@
 
 let meta = open 'i18n-meta.json'
 
+# Update issue contents for https://github.com/nushell/nushell.github.io/issues/261
 def update-i18n-status [] {
 
- print 'This table holds the overview of the nushell docs writing and translation status. Welcome to participate in the translation of the docs. You can update the `i18n-meta.json` file when you have finished writing or translating the doc. Thanks'
- print ''
- print '---'
- print ''
+ print "The following table holds the overview of the Nushell docs’ writing and translation status. Welcome to participate in the translation of the docs. And please update the `i18n-meta.json` file after you have finished writing or translating the doc. Thanks"
+ print $'(char nl)---(char nl)'
 
  ls -s book
  | where type == file && name != README.md
  | select name
- | update en {|it| get-cell $it.name en } | default en 'In progress'
- | update de {|it| get-cell $it.name de } | default de '-'
- | update zh-cn {|it| get-cell $it.name zh-cn } | default zh-cn '-'
- | update ja {|it| get-cell $it.name ja } | default ja '-'
- | update es {|it| get-cell $it.name es } | default es '-'
- | update pt-BR {|it| get-cell $it.name pt-BR } | default pt-BR '-'
+ | update en {|it| get-cell $it.name en }
+ | update de {|it| get-cell $it.name de }
+ | update zh-cn {|it| get-cell $it.name zh-cn }
+ | update ja {|it| get-cell $it.name ja }
+ | update es {|it| get-cell $it.name es }
+ | update pt-BR {|it| get-cell $it.name pt-BR }
  | to md --pretty
 
- print ''
- print 'Possible status values: `-`,`Completed`,`In Progress`,`Being translated by @ABC`'
+ print $'(char nl)Possible status values: `-`,`Completed`,`In Progress`,`Being translated by @ABC`(char nl)'
 }
 
 def get-cell [
  name: string
  lng: string
 ] {
- ($meta | where name == $name | get $lng | get 0)
+ let match = ($meta | where name == $name)
+ let cellDefault = if ($lng == 'en') { 'In progress' } else { '-' }
+ # For newly added docs
+ if ($match | length) == 0 {
+ $cellDefault
+
+ } else { # For existing docs
+ let val = ($match | get $lng | get 0)
+ if ($val | empty?) { $cellDefault } else { $val }
+ }
 }
 
+# Generate or update meta data for docs' translation status
 def gen-i18n-meta [] {
  ls -s book
  | where type == file && name != README.md
  | select name
- | update en 'In progress'
- | update de '-'
- | update  zh-cn '-'
- | update ja '-'
- | update es '-'
- | update pt-BR '-'
+ | update en {|it| get-cell $it.name en }
+ | update de {|it| get-cell $it.name de }
+ | update zh-cn {|it| get-cell $it.name zh-cn }
+ | update ja {|it| get-cell $it.name ja }
+ | update es {|it| get-cell $it.name es }
+ | update pt-BR {|it| get-cell $it.name pt-BR }
  | to json -i 2
  | save -r i18n-meta.json
 }