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chore(script)!: upgrade templating engine from Tera 1 to Tera 2 #337

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Merged
micprog merged 2 commits into from
Sep 7, 2026
Merged

chore(script)!: upgrade templating engine from Tera 1 to Tera 2 #337

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3a73877
script: Upgrade templating engine from Tera 1 to Tera 2
fischeti Jul 31, 2026
077cd64
script: Validate built-in templates in the test suite
fischeti Jul 31, 2026
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4 changes: 4 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -5,11 +5,15 @@ All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).

## Unreleased
### Breaking Changes
- script: Upgrade the templating engine from Tera 1 to Tera 2. Custom templates passed to `bender script template --template` may need updating. See the [Tera migration guide](https://github.com/Keats/tera/blob/master/MIGRATION.md) for the full list. The output of all built-in formats is unchanged.

### Added
- script: expose `all_headers` to templates — the fine-grained, transitive, deduplicated set of header files Slang resolved via `` `include `` for the kept trees. Populated whenever the Slang pass runs (`--top`/`--trim-incdirs`/`--broken`/`--encrypted`).

### Changed
- `bender clone`: primary flag for the checkout directory is now `--working-dir`, matching `bender snapshot`'s flag for the same concept; `-p`/`--path` are kept as hidden aliases for backwards compatibility.
- script: Template errors now report the template name and source location (e.g. `my_format.tera:12:54`), and unknown filters or tests are reported before rendering starts.

### Fixed
- script: apply `override_files` before validation and the slang pass, so overriding files replace their targets in file-existence checks and in `--top`/`--trim-incdirs` reduction (previously slang saw both the original and the override as duplicate modules); the overridden-file annotation is preserved.
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