vim-patch:9.1.1196: filetype: config files for container tools are not recognized (#32873)

Problem:  filetype: config files for container tools are not recognized
Solution: detect the ones that aren't detected yet as toml filetype
          (David Mandelberg)

The .containerignore format doesn't look exactly the same as gitignore,
but very close. And .dockerignore is already using gitignore.

References:
https://github.com/containers/common/blob/main/docs/containerignore.5.md
https://github.com/containers/common/blob/main/docs/containers.conf.5.md
https://github.com/containers/storage/blob/main/docs/containers-storage.conf.5.md
https://github.com/containers/image/blob/main/docs/containers-registries.conf.5.md
https://github.com/containers/image/blob/main/docs/containers-registries.conf.d.5.md

I wasn't sure exactly how to interpret what containers.conf(5) was
saying about modules, so I looked at
https://github.com/containers/common/tree/main/pkg/config/testdata/modules
to get examples, and based the detection off those.

closes: vim/vim#16852

7546afbf52

Co-authored-by: David Mandelberg <david@mandelberg.org>

runtime/lua/vim/filetype.lua

@@ -1583,6 +1583,7 @@ local filename = {
   ['.gitattributes'] = 'gitattributes',
   ['.gitignore'] = 'gitignore',
   ['.ignore'] = 'gitignore',
+  ['.containerignore'] = 'gitignore',
   ['.dockerignore'] = 'gitignore',
   ['.fdignore'] = 'gitignore',
   ['.npmignore'] = 'gitignore',
@@ -2264,6 +2265,12 @@ local pattern = {
     ['/%.ssh/.*%.conf$'] = 'sshconfig',
     ['^%.?tmux.*%.conf$'] = 'tmux',
     ['^%.?tmux.*%.conf'] = { 'tmux', { priority = -1 } },
+    ['/containers/containers%.conf$'] = 'toml',
+    ['/containers/containers%.conf%.d/.*%.conf$'] = 'toml',
+    ['/containers/containers%.conf%.modules/.*%.conf$'] = 'toml',
+    ['/containers/registries%.conf$'] = 'toml',
+    ['/containers/registries%.conf%.d/.*%.conf$'] = 'toml',
+    ['/containers/storage%.conf$'] = 'toml',
     ['/%.config/upstart/.*%.conf$'] = 'upstart',
     ['/%.config/upstart/.*%.override$'] = 'upstart',
     ['/%.init/.*%.conf$'] = 'upstart',

test/old/testdir/test_filetype.vim

@@ -306,7 +306,7 @@ func s:GetFilenameChecks() abort
     \ 'gitattributes': ['file.git/info/attributes', '.gitattributes', '/.config/git/attributes', '/etc/gitattributes', '/usr/local/etc/gitattributes', 'some.git/info/attributes'] + s:WhenConfigHome('$XDG_CONFIG_HOME/git/attributes'),
     \ 'gitcommit': ['COMMIT_EDITMSG', 'MERGE_MSG', 'TAG_EDITMSG', 'NOTES_EDITMSG', 'EDIT_DESCRIPTION'],
     \ 'gitconfig': ['file.git/config', 'file.git/config.worktree', 'file.git/worktrees/x/config.worktree', '.gitconfig', '.gitmodules', 'file.git/modules//config', '/.config/git/config', '/etc/gitconfig', '/usr/local/etc/gitconfig', '/etc/gitconfig.d/file', 'any/etc/gitconfig.d/file', '/.gitconfig.d/file', 'any/.config/git/config', 'any/.gitconfig.d/file', 'some.git/config', 'some.git/modules/any/config'] + s:WhenConfigHome('$XDG_CONFIG_HOME/git/config'),
-    \ 'gitignore': ['file.git/info/exclude', '.gitignore', '/.config/git/ignore', 'some.git/info/exclude'] + s:WhenConfigHome('$XDG_CONFIG_HOME/git/ignore') + ['.prettierignore', '.fdignore', '/.config/fd/ignore', '.ignore', '.rgignore', '.dockerignore', '.npmignore', '.vscodeignore'],
+    \ 'gitignore': ['file.git/info/exclude', '.gitignore', '/.config/git/ignore', 'some.git/info/exclude'] + s:WhenConfigHome('$XDG_CONFIG_HOME/git/ignore') + ['.prettierignore', '.fdignore', '/.config/fd/ignore', '.ignore', '.rgignore', '.dockerignore', '.containerignore', '.npmignore', '.vscodeignore'],
     \ 'gitolite': ['gitolite.conf', '/gitolite-admin/conf/file', 'any/gitolite-admin/conf/file'],
     \ 'gitrebase': ['git-rebase-todo'],
     \ 'gitsendemail': ['.gitsendemail.msg.xxxxxx'],
@@ -816,7 +816,11 @@ func s:GetFilenameChecks() abort
     \ 'tla': ['file.tla'],
     \ 'tli': ['file.tli'],
     \ 'tmux': ['tmuxfile.conf', '.tmuxfile.conf', '.tmux-file.conf', '.tmux.conf', 'tmux-file.conf', 'tmux.conf', 'tmux.conf.local'],
-    \ 'toml': ['file.toml', 'Gopkg.lock', 'Pipfile', '/home/user/.cargo/config', '.black'],
+    \ 'toml': ['file.toml', 'Gopkg.lock', 'Pipfile', '/home/user/.cargo/config', '.black',
+    \          'any/containers/containers.conf', 'any/containers/containers.conf.d/file.conf',
+    \          'any/containers/containers.conf.modules/file.conf', 'any/containers/containers.conf.modules/any/file.conf',
+    \          'any/containers/registries.conf', 'any/containers/registries.conf.d/file.conf',
+    \          'any/containers/storage.conf'],
     \ 'tpp': ['file.tpp'],
     \ 'trace32': ['file.cmm', 'file.cmmt', 'file.t32'],
     \ 'treetop': ['file.treetop'],