Add command set the scheme to use the current buffer

[gozes]

At work, we use a lot of AWS Cloudformation but put yaml files in a folder and name the file based on their use for example template-main for the main stack and template-s3 for an s3 bucket that the main stack will reference.
This means fileMatcher expression for cloud formation files will never match.

it would be great if this plugin had something like :SchemaStoreUse "AWS CloudFormation" so that I can "focre" it to use a given schema by name for the current buffer or allow appending to the fileMatcher in the configuration so that something like the below works

{
name = "AWS CloudFormation",
match = { "cloudformatoin/*.{yml, yaml}",},
}

[ALydh]

I had a similar need, and managed to solve it by sending a workspace/didChangeConfiguration notification to the language server with the needed extra schema and the current files name as the fileMatch.

local function get_current_file_name()
  return vim.fn.expand '%:t'
end
                                                                                                                 
local function notify_jsonls_to_read_schema(file_name, url)
  local params = {
    settings = {
      json = {
        schemas = require('schemastore').json.schemas {
          select = { 'custom' },
          extra = {
            {
              fileMatch = '*' .. file_name,
              name = 'custom',
              url = url,
            },
          },
        },
      },
    },
  }
                                                                                                                 
  vim.lsp.buf_notify(0, 'workspace/didChangeConfiguration', params)
end
                                                                                                                 
vim.api.nvim_create_user_command('InjectJsonSchema', function()
  local file_name = get_current_file_name()
  notify_jsonls_to_read_schema(file_name, 'https://url.to.schema.json')
end, {})

I then created a telescope picker so you can choose which schema you'd like to use given a list of extra schemas.

local extra_schemas = {
  {
    description = 'ASAM OpenLabel',
    fileMatch = '',
    name = 'openlabel',
    url = 'https://openlabel.asam.net/V1-0-0/schema/openlabel_json_schema.json',
  },
}

vim.api.nvim_create_user_command('InjectJsonSchema', function()
  local pickers = require 'telescope.pickers'
  local finders = require 'telescope.finders'
  local actions = require 'telescope.actions'
  local action_state = require 'telescope.actions.state'
                                                                         
  pickers
    .new({}, {
      prompt_title = 'Select JSON Schema',
      finder = finders.new_table {
        results = extra_schemas,
        entry_maker = function(entry)
          return {
            value = entry,
            display = entry.name,
            ordinal = entry.name,
          }
        end,
      },
      attach_mappings = function(prompt_bufnr, map)
        local function on_select()
          local selection = action_state.get_selected_entry()
          actions.close(prompt_bufnr)
          if selection then
            local file_name = get_current_file_name()
            notify_jsonls_to_read_schema(file_name, selection.value.url)
          end
        end
                                                                         
        map('i', '<CR>', on_select)
        map('n', '<CR>', on_select)
                                                                         
        return true
      end,
    })
    :find()
end, {})

[rodhash]

I had a similar need, and managed to solve it by sending a workspace/didChangeConfiguration notification to the language server with the needed extra schema and the current files name as the fileMatch.

I then created a telescope picker so you can choose which schema you'd like to use given a list of extra schemas.

Nice solution!

Wondering if the telescope picker would be able to open schema store allowing us to choose among the multiple options.