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# 92cfda1b 02-May-2025 Victor Adossi <[email protected]>

refactor(docs): more conversions of sh to console for copy-paste (#10707)

This commit udpates more instructions on various READMEs to avoid `$`
for easy copy-pasting, and also use `console` where ap

refactor(docs): more conversions of sh to console for copy-paste (#10707)

This commit udpates more instructions on various READMEs to avoid `$`
for easy copy-pasting, and also use `console` where appropriate.

Signed-off-by: Victor Adossi <[email protected]>

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Revision tags: v32.0.0, v31.0.0, v30.0.2, v30.0.1, v30.0.0, v29.0.1, v29.0.0, v28.0.1
# 41ff8e7b 26-Dec-2024 SingleAccretion <[email protected]>

Add `WASMTIME_LOG_NO_CONTEXT` (#9902)

* Documentation

* Add WASMTIME_LOG_NO_CONTEXT

When using trace logging for compiler debugging, the usual
'context': time, level, target, are just visual noise

Add `WASMTIME_LOG_NO_CONTEXT` (#9902)

* Documentation

* Add WASMTIME_LOG_NO_CONTEXT

When using trace logging for compiler debugging, the usual
'context': time, level, target, are just visual noise.

Add an environment variable to disable them.

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Revision tags: v28.0.0, v27.0.0, v26.0.1, v25.0.3, v24.0.2, v26.0.0, v21.0.2, v22.0.1, v23.0.3, v25.0.2, v24.0.1, v25.0.1, v25.0.0, v24.0.0, v23.0.2, v23.0.1, v23.0.0, v22.0.0, v21.0.1
# 3c8bb264 21-May-2024 Pat Hickey <[email protected]>

corrections to the WASMTIME_LOG docs (#8669)

* its tracing-subscriber now, not pretty_env_logger
* point to tracing-subscribers docs on filter directives
* correct invocation of wasmtime in the exam

corrections to the WASMTIME_LOG docs (#8669)

* its tracing-subscriber now, not pretty_env_logger
* point to tracing-subscribers docs on filter directives
* correct invocation of wasmtime in the example

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Revision tags: v21.0.0
# 81375392 20-May-2024 Jonathan Coates <[email protected]>

Update docs to match new logging env var (#8656)


Revision tags: v20.0.2, v20.0.1, v20.0.0, v17.0.3, v19.0.2, v18.0.4, v19.0.1, v19.0.0, v18.0.3, v18.0.2, v17.0.2, v18.0.1, v18.0.0, v17.0.1, v17.0.0, v16.0.0, v15.0.1, v15.0.0, v14.0.4, v14.0.3, v14.0.2, v13.0.1, v14.0.1, v14.0.0, minimum-viable-wasi-proxy-serve, v13.0.0, v12.0.2, v11.0.2, v10.0.2
# 8995750a 11-Sep-2023 Alex Crichton <[email protected]>

Redesign Wasmtime's CLI (#6925)

* Redesign Wasmtime's CLI

This commit follows through on discussion from #6741 to redesign the
flags that the `wasmtime` binary accepts on the CLI. Almost all flags

Redesign Wasmtime's CLI (#6925)

* Redesign Wasmtime's CLI

This commit follows through on discussion from #6741 to redesign the
flags that the `wasmtime` binary accepts on the CLI. Almost all flags
have been renamed/moved and will require callers to update. The main
motivation here is to cut down on the forest of options in `wasmtime -h`
which are difficult to mentally group together and understand.

The main change implemented here is to move options behind "option
groups" which are intended to be abbreviated with a single letter:

* `-O foo` - an optimization or performance-tuning related option
* `-C foo` - a codegen option affecting the compilation process.
* `-D foo` - a debug-related option
* `-W foo` - a wasm-related option, for example changing wasm semantics
* `-S foo` - a WASI-related option, configuring various proposals for example

Each option group can be explored by passing `help`, for example `-O
help`. This will print all options within the group along with their
help message. Additionally `-O help-long` can be passed to print the
full comment for each option if desired.

Option groups can be specified multiple times on the command line, for
example `-Wrelaxed-simd -Wthreads`. They can also be combined together
with commas as `-Wrelaxed-simd,threads`. Configuration works as a "last
option wins" so `-Ccache,cache=n` would end up with a compilation
cache disabled.

Boolean options can be specified as `-C foo` to enable `foo`, or they
can be specified with `-Cfoo=$val` with any of `y`, `n`, `yes`, `no`,
`true`, or `false`. All other options require a `=foo` value to be
passed and the parsing depends on the type.

This commit additionally applies a few small refactorings to the CLI as
well. For example the help text no longer prints information about wasm
features after printing the option help. This is still available via
`-Whelp` as all wasm features have moved from `--wasm-features` to `-W`.
Additionally flags are no longer conditionally compiled in, but instead
all flags are always supported. A runtime error is returned if support
for a flag is not compiled in. Additionally the "experimental" name of
WASI proposals has been dropped in favor of just the name of the
proposal, for example `--wasi nn` instead of `--wasi-modules
experimental-wasi-nn`. This is intended to mirror how wasm proposals
don't have "experimental" in the name and an opt-in is required
regardless.

A full listing of flags and how they have changed is:

| old cli flag | new cli flag |
|-----------------------------------------------|-------------------------------------------------|
| `-O, --optimize` | removed |
| `--opt-level <LEVEL>` | `-O opt-level=N` |
| `--dynamic-memory-guard-size <SIZE>` | `-O dynamic-memory-guard-size=...` |
| `--static-memory-forced` | `-O static-memory-forced` |
| `--static-memory-guard-size <SIZE>` | `-O static-memory-guard-size=N` |
| `--static-memory-maximum-size <MAXIMUM>` | `-O static-memory-maximum-size=N` |
| `--dynamic-memory-reserved-for-growth <SIZE>` | `-O dynamic-memory-reserved-for-growth=...` |
| `--pooling-allocator` | `-O pooling-allocator` |
| `--disable-memory-init-cow` | `-O memory-init-cow=no` |
| `--compiler <COMPILER>` | `-C compiler=..` |
| `--enable-cranelift-debug-verifier` | `-C cranelift-debug-verifier` |
| `--cranelift-enable <SETTING>` | `-C cranelift-NAME` |
| `--cranelift-set <NAME=VALUE>` | `-C cranelift-NAME=VALUE` |
| `--config <CONFIG_PATH>` | `-C cache-config=..` |
| `--disable-cache` | `-C cache=no` |
| `--disable-parallel-compilation` | `-C parallel-compilation=no` |
| `-g` | `-D debug-info` |
| `--disable-address-map` | `-D address-map=no` |
| `--disable-logging` | `-D logging=no` |
| `--log-to-files` | `-D log-to-files` |
| `--coredump-on-trap <PATH>` | `-D coredump=..` |
| `--wasm-features all` | `-W all-proposals` |
| `--wasm-features -all` | `-W all-proposals=n` |
| `--wasm-features bulk-memory` | `-W bulk-memory` |
| `--wasm-features multi-memory` | `-W multi-memory` |
| `--wasm-features multi-value` | `-W multi-value` |
| `--wasm-features reference-types` | `-W reference-types` |
| `--wasm-features simd` | `-W simd` |
| `--wasm-features tail-call` | `-W tail-call` |
| `--wasm-features threads` | `-W threads` |
| `--wasm-features memory64` | `-W memory64` |
| `--wasm-features copmonent-model` | `-W component-model` |
| `--wasm-features function-references` | `-W function-references` |
| `--relaxed-simd-deterministic` | `-W relaxed-simd-deterministic` |
| `--enable-cranelift-nan-canonicalization` | `-W nan-canonicalization` |
| `--fuel <N>` | `-W fuel=N` |
| `--epoch-interruption` | `-W epoch-interruption` |
| `--allow-unknown-exports` | `-W unknown-exports-allow` |
| `--trap-unknown-imports` | `-W unknown-imports-trap` |
| `--default-values-unknown-imports` | `-W unknown-imports-default` |
| `--max-instances <MAX_INSTANCES>` | `-W max-instances=N` |
| `--max-memories <MAX_MEMORIES>` | `-W max-memories=N` |
| `--max-memory-size <BYTES>` | `-W max-memory-size=N` |
| `--max-table-elements <MAX_TABLE_ELEMENTS>` | `-W max-table-elements=N` |
| `--max-tables <MAX_TABLES>` | `-W max-tables=N` |
| `--max-wasm-stack <MAX_WASM_STACK>` | `-W max-wasm-stack=N` |
| `--trap-on-grow-failure` | `-W trap-on-grow-failure` |
| `--wasm-timeout <TIME>` | `-W timeout=N` |
| `--wmemcheck` | `-W wmemcheck` |
| `--wasi-modules default` | removed |
| `--wasi-modules -default` | removed |
| `--wasi-modules wasi-common` | `-S common` |
| `--wasi-modules -wasi-common` | `-S common=n` |
| `--wasi-modules experimental-wasi-nn` | `-S nn` |
| `--wasi-modules experimental-wasi-threads` | `-S threads` |
| `--wasi-modules experimental-wasi-http` | `-S http` |
| `--listenfd` | `-S listenfd` |
| `--tcplisten <SOCKET ADDRESS>` | `-S tcplisten=...` |
| `--wasi-nn-graph <FORMAT::HOST>` | `-S nn-graph=FORMAT::HOST` |
| `--preview2` | `-S preview2` |
| `--dir <DIRECTORY>` | `--dir ...` |
| `--mapdir <GUEST_DIR::HOST_DIR>` | `--dir a::b` |

* Be more descriptive with help text

* Document `=val` is optional for `-Ccranelift-xxx`

* Fix compile after rebase

* Fix rebase of `--inherit-network`

* Fix wasi-http test

* Fix compile without pooling allocator support

* Update some flags in docs

* Fix bench-api build

* Update flags for gdb/lldb tests

* Fixup optimization flags

prtest:full

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Revision tags: v12.0.1, v12.0.0, v11.0.1, v11.0.0, v10.0.1, v10.0.0, v9.0.4, v9.0.3, v9.0.2, v9.0.1, v9.0.0, v6.0.2, v7.0.1, v8.0.1, v8.0.0, v7.0.0, v6.0.1, v5.0.1, v4.0.1, v6.0.0, v5.0.0, v4.0.0, v3.0.1, v3.0.0, v1.0.2, v2.0.2, v2.0.1, v2.0.0, v1.0.1, v1.0.0, v0.40.1, v0.40.0, v0.39.1, v0.38.3, v0.38.2, v0.39.0, v0.38.1, v0.38.0, v0.37.0, v0.36.0, v0.35.3, v0.34.2, v0.35.2, v0.35.1, v0.35.0, v0.33.1, v0.34.1, v0.34.0, v0.33.0, v0.32.1, v0.32.0, v0.31.0, v0.30.0, v0.29.0, v0.28.0, v0.26.1, v0.27.0, v0.26.0, v0.25.0, v0.24.0, v0.23.0, v0.22.1, cranelift-v0.69.0, v0.22.0, v0.21.0, v0.20.0, v0.19.0, v0.18.0, v0.17.0, v0.16.0, v0.15.0, cranelift-v0.62.0, cranelift-v0.61.0, cranelift-v0.60.0
# ac0ee271 10-Mar-2020 Dan Gohman <[email protected]>

Log to stderr by default. (#1266)

Change the default from file-per-thread-logger to pretty-env-logger,
which is more common in Rust projects, and change the option from `-d`
to `--log-to-files`.