docs(add): Add missing flags to reference

Fixes #11237

Author: epage

src/doc/man/cargo-add.md

@@ -91,6 +91,10 @@ Add as a dependency to the [given target platform](../reference/specifying-depen
 
 {{#options}}
 
+{{#option "`--dry-run`" }}
+Don't actually write the manifest
+{{/option}}
+
 {{#option "`--rename` _name_" }}
 [Rename](../reference/specifying-dependencies.html#renaming-dependencies-in-cargotoml) the dependency.
 {{/option}}
@@ -132,6 +136,12 @@ which enables all specified features.
 
 {{#options}}
 {{> options-manifest-path }}
+
+{{#option "`-p` _spec_" "`--package` _spec_" }}
+Add dependencies to only the specified package.
+{{/option}}
+
+{{> options-locked }}
 {{/options}}
 
 {{> section-options-common }}

src/doc/man/generated_txt/cargo-add.txt

@@ -79,6 +79,9 @@ OPTIONS
 </dl>
 
    Dependency options
+       --dry-run
+           Don't actually write the manifest
+
        --rename name
            Rename
            <https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#renaming-dependencies-in-cargotoml>
@@ -137,6 +140,35 @@ OPTIONS
            Path to the Cargo.toml file. By default, Cargo searches for the
            Cargo.toml file in the current directory or any parent directory.
 
+       -p spec, --package spec
+           Add dependencies to only the specified package.
+
+       --frozen, --locked
+           Either of these flags requires that the Cargo.lock file is
+           up-to-date. If the lock file is missing, or it needs to be updated,
+           Cargo will exit with an error. The --frozen flag also prevents Cargo
+           from attempting to access the network to determine if it is
+           out-of-date.
+
+           These may be used in environments where you want to assert that the
+           Cargo.lock file is up-to-date (such as a CI build) or want to avoid
+           network access.
+
+       --offline
+           Prevents Cargo from accessing the network for any reason. Without
+           this flag, Cargo will stop with an error if it needs to access the
+           network and the network is not available. With this flag, Cargo will
+           attempt to proceed without the network if possible.
+
+           Beware that this may result in different dependency resolution than
+           online mode. Cargo will restrict itself to crates that are
+           downloaded locally, even if there might be a newer version as
+           indicated in the local copy of the index. See the cargo-fetch(1)
+           command to download dependencies before going offline.
+
+           May also be specified with the net.offline config value
+           <https://doc.rust-lang.org/cargo/reference/config.html>.
+
    Common Options
        +toolchain
            If Cargo has been installed with rustup, and the first argument to

src/doc/src/commands/cargo-add.md

@@ -97,6 +97,10 @@ which is defined by the <code>registry.default</code> config key which defaults
 
 <dl>
 
+<dt class="option-term" id="option-cargo-add---dry-run"><a class="option-anchor" href="#option-cargo-add---dry-run"></a><code>--dry-run</code></dt>
+<dd class="option-desc">Don't actually write the manifest</dd>
+
+
 <dt class="option-term" id="option-cargo-add---rename"><a class="option-anchor" href="#option-cargo-add---rename"></a><code>--rename</code> <em>name</em></dt>
 <dd class="option-desc"><a href="../reference/specifying-dependencies.html#renaming-dependencies-in-cargotoml">Rename</a> the dependency.</dd>
 
@@ -168,6 +172,36 @@ terminal.</li>
 <code>Cargo.toml</code> file in the current directory or any parent directory.</dd>
 
 
+
+<dt class="option-term" id="option-cargo-add--p"><a class="option-anchor" href="#option-cargo-add--p"></a><code>-p</code> <em>spec</em></dt>
+<dt class="option-term" id="option-cargo-add---package"><a class="option-anchor" href="#option-cargo-add---package"></a><code>--package</code> <em>spec</em></dt>
+<dd class="option-desc">Add dependencies to only the specified package.</dd>
+
+
+<dt class="option-term" id="option-cargo-add---frozen"><a class="option-anchor" href="#option-cargo-add---frozen"></a><code>--frozen</code></dt>
+<dt class="option-term" id="option-cargo-add---locked"><a class="option-anchor" href="#option-cargo-add---locked"></a><code>--locked</code></dt>
+<dd class="option-desc">Either of these flags requires that the <code>Cargo.lock</code> file is
+up-to-date. If the lock file is missing, or it needs to be updated, Cargo will
+exit with an error. The <code>--frozen</code> flag also prevents Cargo from
+attempting to access the network to determine if it is out-of-date.</p>
+<p>These may be used in environments where you want to assert that the
+<code>Cargo.lock</code> file is up-to-date (such as a CI build) or want to avoid network
+access.</dd>
+
+
+<dt class="option-term" id="option-cargo-add---offline"><a class="option-anchor" href="#option-cargo-add---offline"></a><code>--offline</code></dt>
+<dd class="option-desc">Prevents Cargo from accessing the network for any reason. Without this
+flag, Cargo will stop with an error if it needs to access the network and
+the network is not available. With this flag, Cargo will attempt to
+proceed without the network if possible.</p>
+<p>Beware that this may result in different dependency resolution than online
+mode. Cargo will restrict itself to crates that are downloaded locally, even
+if there might be a newer version as indicated in the local copy of the index.
+See the <a href="cargo-fetch.html">cargo-fetch(1)</a> command to download dependencies before going
+offline.</p>
+<p>May also be specified with the <code>net.offline</code> <a href="../reference/config.html">config value</a>.</dd>
+
+
 </dl>
 
 ### Common Options

src/etc/man/cargo-add.1

@@ -100,6 +100,11 @@ Add as a dependency to the \fIgiven target platform\fR <https://doc.rust\-lang.o
 </dl>
 .SS "Dependency options"
 .sp
+\fB\-\-dry\-run\fR
+.RS 4
+Don't actually write the manifest
+.RE
+.sp
 \fB\-\-rename\fR \fIname\fR
 .RS 4
 \fIRename\fR <https://doc.rust\-lang.org/cargo/reference/specifying\-dependencies.html#renaming\-dependencies\-in\-cargotoml> the dependency.
@@ -179,6 +184,41 @@ May also be specified with the \fBterm.color\fR
 Path to the \fBCargo.toml\fR file. By default, Cargo searches for the
 \fBCargo.toml\fR file in the current directory or any parent directory.
 .RE
+.sp
+\fB\-p\fR \fIspec\fR, 
+\fB\-\-package\fR \fIspec\fR
+.RS 4
+Add dependencies to only the specified package.
+.RE
+.sp
+\fB\-\-frozen\fR, 
+\fB\-\-locked\fR
+.RS 4
+Either of these flags requires that the \fBCargo.lock\fR file is
+up\-to\-date. If the lock file is missing, or it needs to be updated, Cargo will
+exit with an error. The \fB\-\-frozen\fR flag also prevents Cargo from
+attempting to access the network to determine if it is out\-of\-date.
+.sp
+These may be used in environments where you want to assert that the
+\fBCargo.lock\fR file is up\-to\-date (such as a CI build) or want to avoid network
+access.
+.RE
+.sp
+\fB\-\-offline\fR
+.RS 4
+Prevents Cargo from accessing the network for any reason. Without this
+flag, Cargo will stop with an error if it needs to access the network and
+the network is not available. With this flag, Cargo will attempt to
+proceed without the network if possible.
+.sp
+Beware that this may result in different dependency resolution than online
+mode. Cargo will restrict itself to crates that are downloaded locally, even
+if there might be a newer version as indicated in the local copy of the index.
+See the \fBcargo\-fetch\fR(1) command to download dependencies before going
+offline.
+.sp
+May also be specified with the \fBnet.offline\fR \fIconfig value\fR <https://doc.rust\-lang.org/cargo/reference/config.html>\&.
+.RE
 .SS "Common Options"
 .sp
 \fB+\fR\fItoolchain\fR