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Merged
Notgnoshi merged 16 commits into from
Feb 17, 2026
Merged

Add bbclasses tool #76

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c83f4f5
Initial skeleton
Notgnoshi Feb 16, 2026
f7add2b
Strip off common prefix from BBLAYERS
Notgnoshi Feb 16, 2026
7088b71
Add edge discovery scaffolding
Notgnoshi Feb 16, 2026
f7a240a
Add simple inherit/include resolution
Notgnoshi Feb 16, 2026
11b4738
Add basic edge discovery without variable expansion
Notgnoshi Feb 16, 2026
b7665a3
Reverse edge direction for classic inheritance diagram
Notgnoshi Feb 16, 2026
d09932c
Add global inherits from INHERIT += in local.conf et al
Notgnoshi Feb 16, 2026
c110ba5
Fix base infra filtering
Notgnoshi Feb 17, 2026
5de61a1
Add inherit_defer variable expansion
Notgnoshi Feb 17, 2026
684dfea
Filter out nodes that don't exist on disk
Notgnoshi Feb 17, 2026
52664b7
Fix variable expansion resolving to multiple inherits
Notgnoshi Feb 17, 2026
64e75ad
Refactor variable expansion to happen before resolution
Notgnoshi Feb 17, 2026
c48c0d4
Dump tinfoil logs to stderr
Notgnoshi Feb 17, 2026
a3bff47
Redirect stdout from tinfoil to stderr
Notgnoshi Feb 17, 2026
67afc4e
Add group-by-layer
Notgnoshi Feb 17, 2026
ad256ab
Add bbclasses to README
Notgnoshi Feb 17, 2026
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70 changes: 70 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -342,3 +342,73 @@ $ canstruct data/abort-then-full.log
2025-06-28T15:36:19.051620Z WARN csvizmo::can::tp: TP.CM_ABRT 0x1C <- 0x2A reason ExistingTransportSession pgn 0xEF00
(1750963079.795905) can0 18EF2A1C#11111111111111222222222222223333333333333344
```

## bbclasses

The [bbclasses](./scripts/bbclasses) script can parse BitBake recipes to generate an inheritance
diagram. It tries to evaluate variable expansion, and needs to run in your BitBake environment to
work properly.

```sh
bbclasses --group-by-layer curl >curl.dot
```

```mermaid
flowchart LR
subgraph meta[meta]
poky/meta/classes-global/debian.bbclass{{"poky/meta/classes-global/debian.bbclass"}}
poky/meta/classes-global/package.bbclass{{"poky/meta/classes-global/package.bbclass"}}
poky/meta/classes-global/package_pkgdata.bbclass{{"poky/meta/classes-global/package_pkgdata.bbclass"}}
poky/meta/classes-global/package_rpm.bbclass{{"poky/meta/classes-global/package_rpm.bbclass"}}
poky/meta/classes-global/packagedata.bbclass{{"poky/meta/classes-global/packagedata.bbclass"}}
poky/meta/classes-recipe/autotools.bbclass{{"poky/meta/classes-recipe/autotools.bbclass"}}
poky/meta/classes-recipe/binconfig.bbclass{{"poky/meta/classes-recipe/binconfig.bbclass"}}
poky/meta/classes-recipe/multilib_header.bbclass{{"poky/meta/classes-recipe/multilib_header.bbclass"}}
poky/meta/classes-recipe/multilib_script.bbclass{{"poky/meta/classes-recipe/multilib_script.bbclass"}}
poky/meta/classes-recipe/pkgconfig.bbclass{{"poky/meta/classes-recipe/pkgconfig.bbclass"}}
poky/meta/classes-recipe/ptest.bbclass{{"poky/meta/classes-recipe/ptest.bbclass"}}
poky/meta/classes-recipe/siteinfo.bbclass{{"poky/meta/classes-recipe/siteinfo.bbclass"}}
poky/meta/classes-recipe/update-alternatives.bbclass{{"poky/meta/classes-recipe/update-alternatives.bbclass"}}
poky/meta/classes/chrpath.bbclass{{"poky/meta/classes/chrpath.bbclass"}}
poky/meta/classes/image-buildinfo.bbclass{{"poky/meta/classes/image-buildinfo.bbclass"}}
poky/meta/classes/siteconfig.bbclass{{"poky/meta/classes/siteconfig.bbclass"}}
poky/meta/conf/distro/include/ptest-packagelists.inc[["poky/meta/conf/distro/include/ptest-packagelists.inc"]]
poky/meta/recipes-support/curl/curl_8.7.1.bb["poky/meta/recipes-support/curl/curl_8.7.1.bb"]
end
subgraph meta-oem[meta-oem]
meta-oem/classes/dynamic-packagearch.bbclass{{"meta-oem/classes/dynamic-packagearch.bbclass"}}
meta-oem/classes/machine-overrides-extender.bbclass{{"meta-oem/classes/machine-overrides-extender.bbclass"}}
end
poky/meta-poky/classes/poky-sanity.bbclass{{"poky/meta-poky/classes/poky-sanity.bbclass"}}
meta-work/recipes-support/curl/curl__.bbappend(["meta-work/recipes-support/curl/curl_%.bbappend"])
meta-oem/classes/dynamic-packagearch.bbclass -->|"INHERIT"| poky/meta/recipes-support/curl/curl_8.7.1.bb
meta-oem/classes/machine-overrides-extender.bbclass -->|"INHERIT"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta-poky/classes/poky-sanity.bbclass -->|"INHERIT"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-global/debian.bbclass -->|"INHERIT"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-global/package.bbclass -->|"inherit"| poky/meta/classes-global/debian.bbclass
poky/meta/classes-global/package.bbclass -->|"inherit"| poky/meta/classes-global/package_rpm.bbclass
poky/meta/classes-global/package_pkgdata.bbclass -->|"inherit"| poky/meta/classes-global/package.bbclass
poky/meta/classes-global/package_rpm.bbclass -->|"INHERIT"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-global/package_rpm.bbclass -->|"INHERIT"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-global/packagedata.bbclass -->|"inherit"| poky/meta/classes-global/package.bbclass
poky/meta/classes-recipe/autotools.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/autotools.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/binconfig.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/binconfig.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/multilib_header.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/multilib_header.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/multilib_script.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/multilib_script.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/pkgconfig.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/pkgconfig.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/ptest.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/ptest.bbclass -->|"inherit"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes-recipe/siteinfo.bbclass -->|"inherit"| poky/meta/classes-recipe/autotools.bbclass
poky/meta/classes-recipe/siteinfo.bbclass -->|"inherit"| poky/meta/classes-recipe/multilib_header.bbclass
poky/meta/classes-recipe/update-alternatives.bbclass -->|"inherit"| poky/meta/classes-recipe/multilib_script.bbclass
poky/meta/classes/chrpath.bbclass -->|"inherit"| poky/meta/classes-global/package.bbclass
poky/meta/classes/image-buildinfo.bbclass -->|"INHERIT"| poky/meta/recipes-support/curl/curl_8.7.1.bb
poky/meta/classes/siteconfig.bbclass -->|"inherit"| poky/meta/classes-recipe/autotools.bbclass
poky/meta/conf/distro/include/ptest-packagelists.inc -->|"require"| poky/meta/classes-recipe/ptest.bbclass
poky/meta/recipes-support/curl/curl_8.7.1.bb -->|"appends"| meta-work/recipes-support/curl/curl__.bbappend
```
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