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49 lines
1.0 KiB
Markdown
49 lines
1.0 KiB
Markdown
# Flags & environment
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This page summarizes runtime flags and environment variables that affect DCR behavior.
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## Build/run flags
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Used with `dcr build` and `dcr run`:
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- `--debug`: select debug profile.
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- `--release`: select release profile.
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- `--force`: ignore incremental cache checks and rebuild.
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- `--clean`: remove `target/<profile>` and `build.clean` paths before build.
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Notes:
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- Flags can be passed in any order.
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- Duplicate profile flags are rejected.
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## Clean flags
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Used with `dcr clean`:
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- `--debug` / `--release`: clean only selected profile directory.
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- `--all`: in workspace root, also clean all members.
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## Environment variables
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Tool selection overrides:
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- `DCR_COMPILER` (all languages)
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- `DCR_CC`, `DCR_CXX`, `DCR_AS`, `DCR_AR`, `DCR_LD`
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Diagnostics:
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- `DCR_DEBUG=1` enables verbose build logging.
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## Quick examples
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```sh
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# Force full release rebuild
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dcr build --release --force
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# Clean before debug run
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dcr run --clean --debug
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# Use custom compiler from env
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DCR_CC=clang-18 dcr build --debug
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```
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