`-- atlas:import` directive fails to resolve file paths containing spaces

[TechnoWanderer42]

Title

-- atlas:import directive fails to resolve file paths containing spaces

Body

Description

When using atlas schema inspect --format '{{ sql . | split | write "dir" }}' on a SQL Server database with object names containing spaces, Atlas generates filenames with spaces. The -- atlas:import directives in main.sql and individual SQL files then fail to resolve these paths because the parser splits on spaces.

Steps to Reproduce

1. Have a SQL Server database with objects whose names contain spaces (e.g. [My Company$my table])

2. Export the schema:

atlas schema inspect \
  -u "sqlserver://sa:pass@host:1433?database=mydb&encrypt=disable&mode=database" \
  --format '{{ sql . | split | write "desired-state" }}'

3. Atlas generates files like:

desired-state/
├── main.sql
└── schemas/dbo/tables/
    └── my company$my table.sql

4. main.sql contains:

-- atlas:import schemas/dbo/tables/my company$my table.sql

5. Try to use these files:

atlas schema diff \
  --from "sqlserver://sa:pass@host:1433?database=mydb&encrypt=disable&mode=database" \
  --to "file://desired-state/" \
  --dev-url "sqlserver://sa:pass@host:1433?database=empty_db&encrypt=disable&mode=database"

Expected Behavior

Atlas should resolve the full file path from the -- atlas:import directive, including spaces.

Actual Behavior

Error: desired-state/main.sql:3: stat desired-state/schemas/dbo/tables/my: no such file or directory

The parser truncates the path at the first space character (my instead of my company$my table.sql).

Same issue in cross-file imports

Individual SQL files also contain -- atlas:import directives with relative paths:

-- atlas:import ../../dbo/tables/my company$my table.sql

These fail with the same error.

Workaround

Post-process the export to replace spaces with dashes in both filenames and -- atlas:import paths. This works but breaks the round-trip (re-exporting overwrites the fixes).

Environment

• Atlas version: v1.1.7-52a1d35-canary
• OS: macOS (Darwin 25.3.0)
• Database: SQL Server

Suggested Fix

Either:

1. Quote or escape spaces in -- atlas:import paths (e.g. -- atlas:import "path with spaces.sql")
2. Parse the -- atlas:import directive to take the rest of the line as the path (not splitting on spaces)
3. Add a naming option to split | write that replaces spaces with dashes/underscores in generated filenames