commands: Fix convert command

Closes #15012

testscripts/commands/convert.txt

@@ -9,50 +9,121 @@ stdout 'to use TOML for the front matter'
 hugo convert toYAML -h
 stdout 'to use YAML for the front matter'
 
-hugo convert toJSON -o myjsoncontent
-stdout 'processing 4 content files'
-grep '^{' myjsoncontent/content/mytoml.md
-grep '^{' myjsoncontent/content/myjson.md
-grep '^{' myjsoncontent/content/myyaml.md
-grep '^{' myjsoncontent/content/bundle/index.md
-exists myjsoncontent/content/bundle/data.txt
-exists myjsoncontent/content/bundle/nested/asset.dat
-hugo convert toYAML -o myyamlcontent
-stdout 'processing 4 content files'
-exists myyamlcontent/content/bundle/data.txt
-exists myyamlcontent/content/bundle/nested/asset.dat
-hugo convert toTOML -o mytomlcontent
-stdout 'processing 4 content files'
-exists mytomlcontent/content/bundle/data.txt
-exists mytomlcontent/content/bundle/nested/asset.dat
+cd project
+
+# toJSON
+hugo convert toJSON -o output/json
+stdout 'processing 6 content files'
+! stderr .
+grep '^{' output/json/content/json.fr.md
+grep '^{' output/json/content/toml.en.md
+grep '^{' output/json/content/yaml.md
+grep '^{' output/json/content/bundle/index.en.md
+grep '^{' output/json/content/bundle/index.fr.md
+grep '^{' output/json/internal/internal-mount.md
+exists output/json/content/bundle/data.txt
+exists output/json/content/bundle/nested/asset.dat
+exists output/json/content/_content.gotmpl
+! exists output/json/external
+
+# toTOML
+hugo convert toTOML -o output/toml
+stdout 'processing 6 content files'
+! stderr .
+grep '^\+\+\+' output/toml/content/json.fr.md
+grep '^\+\+\+' output/toml/content/toml.en.md
+grep '^\+\+\+' output/toml/content/yaml.md
+grep '^\+\+\+' output/toml/content/bundle/index.en.md
+grep '^\+\+\+' output/toml/content/bundle/index.fr.md
+grep '^\+\+\+' output/toml/internal/internal-mount.md
+exists output/toml/content/bundle/data.txt
+exists output/toml/content/bundle/nested/asset.dat
+exists output/toml/content/_content.gotmpl
+! exists output/toml/external
+
+# toYAML
+hugo convert toYAML -o output/yaml
+stdout 'processing 6 content files'
+! stderr .
+grep '^---' output/yaml/content/json.fr.md
+grep '^---' output/yaml/content/toml.en.md
+grep '^---' output/yaml/content/yaml.md
+grep '^---' output/yaml/content/bundle/index.en.md
+grep '^---' output/yaml/content/bundle/index.fr.md
+grep '^---' output/yaml/internal/internal-mount.md
+exists output/yaml/content/bundle/data.txt
+exists output/yaml/content/bundle/nested/asset.dat
+exists output/yaml/content/_content.gotmpl
+! exists output/yaml/external
 
 
-
-
-
--- hugo.toml --
-baseURL = "http://example.org/"
--- content/mytoml.md --
-+++
-title = "TOML"
-+++
-TOML content
--- content/myjson.md --
+-- project/hugo.toml --
+disableKinds = ['home','rss','section','sitemap','taxonomy','term']
+defaultContentLanguage = 'en'
+defaultContentLanguageInSubdir = true
+[languages]
+  [languages.en]
+    weight = 1
+  [languages.fr]
+    weight = 2
+[[module.mounts]]
+  source = 'content'
+  target = 'content'
+[[module.mounts]]
+  source = 'internal'
+  target = 'content'
+  [module.mounts.sites.matrix]
+    languages = ['en']
+[[module.mounts]]
+  source = '../external'
+  target = 'content'
+  [module.mounts.sites.matrix]
+    languages = ['en']
+-- project/layouts/page.html --
+{{ .Title }}
+-- project/content/_content.gotmpl --
+{{ $content := dict "mediaType" "text/markdown" "value" "Content created by content adapter" }}
+{{ .AddPage (dict "path" "created-by-content-adapter" "title" "Created by content adapter" "content" $content) }}
+{{ .EnableAllDimensions }}
+-- project/content/json.fr.md --
 {
   "title": "JSON"
 }
 JSON content
--- content/myyaml.md --
+-- project/content/toml.en.md --
++++
+title = 'TOML'
++++
+TOML content
+-- project/content/yaml.md --
 ---
 title: YAML
+sites:
+  matrix:
+    languages: ['**']
 ---
 YAML content
--- content/bundle/index.md --
+-- project/content/bundle/index.en.md --
 ---
-title: Bundle
+title: Bundle EN
 ---
-Bundle content
--- content/bundle/data.txt --
+Bundle EN content
+-- project/content/bundle/index.fr.md --
+---
+title: Bundle FR
+---
+Bundle FR content
+-- project/content/bundle/data.txt --
 bundle resource
--- content/bundle/nested/asset.dat --
+-- project/content/bundle/nested/asset.dat --
 nested resource
+-- project/internal/internal-mount.md --
+---
+title: Internal Mount
+---
+Internal mount content
+-- external/external-mount.md --
+---
+title: External Mount
+---
+External mount content