Include What You Use #8357

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vkucera

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on Nov 8, 2024

Include What You Use (no more, no less)

References:

Tools:

Ideas:

A file which does not include what it uses does not compile. This can be tested with:
```
clang-tidy <file>
```
(It should be enough to check for non-zero exit code to detect compilation errors.)
However, if it compiles, it does not mean that all used headers are included directly nor that no unused headers are included.
When the file compiles, the includes in it can be fixed automatically with:
```
clang-tidy --fix -checks=-*,misc-include-cleaner <file>
```
until there are no warnings left.
Once all headers are self-contained, source files can be fixed with the same procedure.

vkucera
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help wantedExtra attention is needed
on Nov 8, 2024
vkucera
pinned this issue on Nov 8, 2024
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github-actions
closed this as not planned on Apr 7, 2025
vkucera
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vkucera
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vkucera commented on May 23, 2025
vkucera
on May 23, 2025
CollaboratorAuthor

[PWGHF] Include What You Use: Make headers self-contained #11357

[PWGJE] Include What You Use #11358

[PWGCF] Include What You Use #11359

[PWGHF,Trigger] Include What You Use #11360

[ALICE3] Include What You Use #11361
vkucera
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on May 26, 2025
vkucera commented on Jun 6, 2025
vkucera
on Jun 6, 2025
CollaboratorAuthor

Add IWYU export statements to avoid proliferation of headers AliceO2#14354

Export fairlogger/Logger.h to avoid disseminating it everywhere. AliceO2#14391

IWYU: avoid spurious unused include report AliceO2#14392

IWYU: export commonly used headers AliceO2#14393

Export tuple to avoid IWYU adding it everywhere AliceO2#14403
vkucera commented on Jun 11, 2025
vkucera
on Jun 11, 2025
CollaboratorAuthor

[Common] Include What You Use #11547

[PWGHF,Trigger] Include What You Use #11548

[PWGHF] Include What You Use #11549

IWYU: BinningPolicy.h AliceO2#14323

[Tools] Include What You Use #11552

[PWGJE] Include What You Use #11550

[PWGLF] Include What You Use #11551

[PWGHF,Tutorial] Include What You Use #11553

[PWGHF,Tutorial] Include What You Use #11589
vkucera commented on Jun 19, 2025
vkucera
on Jun 19, 2025
CollaboratorAuthor

IWYU: TimeDeadMap.h AliceO2#14424

[Common] Fix bugs, bad practice, performance, includes #11688
github-actions
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on Aug 29, 2025
vkucera
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on Sep 2, 2025
6 remaining items
vkucera
closed this as completed on Nov 13, 2025
vkucera
reopened this on Nov 13, 2025
vkucera
assigned
vkucera
and
dsekihat
on Mar 9, 2026
vkucera commented on Mar 26, 2026
vkucera
on Mar 26, 2026
CollaboratorAuthor

[ALICE3] Fix includes and using statements #15379

[Common] Fix includes and using statements #15380

[DPG] Fix includes and using statements #15381

[Trigger,PWGCF,PWGEM,PWGHF,PWGJE,PWGLF,PWGMM,PWGUD] Fix includes and using statements #15382

[PWGCF] Fix includes and using statements #15383

[PWGDQ] Fix includes and using statements #15384

[PWGEM] Fix includes and using statements #15385

[PWGHF] Fix includes and using statements #15386

[PWGJE] Fix includes and using statements #15387

[PWGLF] Fix includes and using statements #15388

[PWGLF,PWGMM] Fix includes and using statements #15389

[PWGUD] Fix includes and using statements #15390

[Tools] Fix includes and using statements #15391

[Tutorial,PWGCF,PWGEM,PWGHF,PWGLF,PWGMM,PWGUD] Fix includes and using statements #15392
vkucera commented on Apr 10, 2026
vkucera
on Apr 10, 2026
CollaboratorAuthor

[ALICE3] Fix includes and using statements #15717

[DPG] Fix includes and using statements #15718

[PWGDQ] Fix includes and using statements #15719

[PWGEM] Fix includes and using statements #15720

[PWGHF] Fix includes and using statements #15721

[PWGJE] Fix includes and using statements #15722

[PWGLF,PWGMM] Fix includes and using statements #15723
vkucera commented on Apr 16, 2026
vkucera
on Apr 16, 2026
CollaboratorAuthor

[PWGLF] Fix includes #15813

[PWGLF,PWGMM] Fix includes #15817
vkucera commented on Apr 17, 2026
vkucera
on Apr 17, 2026
CollaboratorAuthor

[ALICE3] Fix includes #15837

[PWGDQ] Fix includes #15838

[PWGCF] Fix includes #15840

[PWGEM] Fix includes #15841

[PWGJE] Fix includes #15842

[PWGLF] Fix includes #15843

[PWGUD] Fix includes #15844
vkucera commented on Apr 20, 2026
vkucera
on Apr 20, 2026
CollaboratorAuthor

[ALICE3] Fix includes #15871

[PWGCF] Fix includes #15872

[PWGEM] Fix includes #15873

[PWGLF] Fix includes #15874
vkucera commented on May 4, 2026
vkucera
on May 4, 2026
CollaboratorAuthor

[ALICE3] Fix includes #16086

[DPG] Fix includes #16087

[PWGCF] Fix includes #16088

[PWGDQ] Fix includes #16089

[PWGEM] Fix includes #16090

[PWGHF] Fix includes #16091

[PWGJE] Fix includes #16092

[PWGLF] Fix includes #16093

[PWGLF,PWGMM] Fix includes #16094

[PWGUD] Fix includes #16095
vkucera commented on May 27, 2026
vkucera
on May 27, 2026
CollaboratorAuthor

[ALICE3] Fix includes #16407

[Common] Fix includes #16408

[DPG] Fix includes #16409

[PWGCF] Fix includes #16410

[PWGDQ] Fix includes #16411

[PWGEM] Fix includes #16412

[PWGHF] Fix includes #16413

[PWGJE] Fix includes #16414

[PWGLF] Fix includes #16415

[PWGUD] Fix includes #16416
vkucera commented on Jul 13, 2026
vkucera
on Jul 13, 2026
CollaboratorAuthor
Checked with CI:

Add O2Physics-code-check alisw/alidist#6212

Add O2Physics-code-check alisw/ali-bot#1683

[Infrastructure] Update Clang-Tidy configuration for CI #16868
vkucera commented on Jul 13, 2026
vkucera
on Jul 13, 2026
CollaboratorAuthor

[Common et all] Fix includes #16941

[Common,PWGDQ,PWGEM,PWGHF,PWGLF] Fix includes #17012
vkucera commented on Jul 30, 2026
vkucera
on Jul 30, 2026
CollaboratorAuthor

[Common et all] Fix includes #17263
vkucera commented on Aug 4, 2026
vkucera
on Aug 4, 2026
CollaboratorAuthor

[PWGEM,PWGJE,PWGLF] Fix includes #17316

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