Strip --index and --default-index from command header (#9288)

## Summary

The new `--index` and `--default-index` flags are being omitted in the
`uv pip compile` header, unintentionally.

Closes https://github.com/astral-sh/uv/issues/9287.

crates/uv/src/commands/pip/compile.rs

@@ -582,14 +582,24 @@ fn cmd(
 
             // Skip any index URLs, unless requested.
             if !include_index_url {
-                if arg.starts_with("--extra-index-url=") || arg.starts_with("--index-url=") {
+                if arg.starts_with("--extra-index-url=")
+                    || arg.starts_with("--index-url=")
+                    || arg.starts_with("-i=")
+                    || arg.starts_with("--index=")
+                    || arg.starts_with("--default-index=")
+                {
                     // Reset state; skip this iteration.
                     *skip_next = None;
                     return Some(None);
                 }
 
                 // Mark the next item as (to be) skipped.
-                if arg == "--index-url" || arg == "--extra-index-url" {
+                if arg == "--index-url"
+                    || arg == "--extra-index-url"
+                    || arg == "-i"
+                    || arg == "--index"
+                    || arg == "--default-index"
+                {
                     *skip_next = Some(true);
                     return Some(None);
                 }

crates/uv/tests/it/pip_compile.rs

@@ -5459,45 +5459,385 @@ fn resolver_legacy() -> Result<()> {
     Ok(())
 }
 
-/// Emit the `--index-url` and `--extra-index-url` locations.
-/// Also, preserve the `--index-url` and `--extra-index-url` flags in the command in the header.
+/// Avoid including the `--index` and `-i` flags in the header.
+#[test]
+fn hide_index_urls() -> Result<()> {
+    let context = TestContext::new("3.12");
+    let requirements_in = context.temp_dir.child("requirements.in");
+    requirements_in.write_str("iniconfig")?;
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--default-index")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--default-index=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--index")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--index=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("-i")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("-i=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--index-url")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--index-url=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--extra-index-url")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--extra-index-url=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    Ok(())
+}
+
+/// Emit the `--index-url` and `--extra-index-url` locations, and preserve the `--index-url` and
+/// `--extra-index-url` flags in the command in the header.
 #[test]
 fn emit_index_urls() -> Result<()> {
     let context = TestContext::new("3.12");
     let requirements_in = context.temp_dir.child("requirements.in");
-    requirements_in.write_str("black==23.10.1")?;
+    requirements_in.write_str("iniconfig")?;
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("--default-index")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --default-index https://test.pypi.org/simple/
+    --index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("--default-index=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --default-index=https://test.pypi.org/simple/
+    --index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("--index")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --index https://test.pypi.org/simple/
+    --index-url https://pypi.org/simple
+    --extra-index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("--index=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --index=https://test.pypi.org/simple/
+    --index-url https://pypi.org/simple
+    --extra-index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("-i")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url -i https://test.pypi.org/simple/
+    --index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("-i=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url -i=https://test.pypi.org/simple/
+    --index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
 
     uv_snapshot!(context.filters(), context.pip_compile()
             .arg("requirements.in")
             .arg("--emit-index-url")
             .arg("--index-url")
-            .arg("https://test.pypi.org/simple/")
-            .arg("--extra-index-url")
-            .arg("https://pypi.org/simple")
-            .env(EnvVars::UV_EXTRA_INDEX_URL, "https://pypi.org/simple"), @r###"
+            .arg("https://test.pypi.org/simple/"), @r###"
     success: true
     exit_code: 0
     ----- stdout -----
     # This file was autogenerated by uv via the following command:
-    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --index-url https://test.pypi.org/simple/
     --index-url https://test.pypi.org/simple/
-    --extra-index-url https://pypi.org/simple
 
-    black==23.10.1
+    iniconfig==2.0.0
         # via -r requirements.in
-    click==8.1.7
-        # via black
-    mypy-extensions==1.0.0
-        # via black
-    packaging==24.0
-        # via black
-    pathspec==0.12.1
-        # via black
-    platformdirs==4.2.0
-        # via black
 
     ----- stderr -----
-    Resolved 6 packages in [TIME]
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("--index-url=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --index-url=https://test.pypi.org/simple/
+    --index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("--extra-index-url")
+            .arg("https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --extra-index-url https://test.pypi.org/simple/
+    --index-url https://pypi.org/simple
+    --extra-index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
+    "###
+    );
+
+    uv_snapshot!(context.filters(), context.pip_compile()
+            .arg("requirements.in")
+            .arg("--emit-index-url")
+            .arg("--extra-index-url=https://test.pypi.org/simple/"), @r###"
+    success: true
+    exit_code: 0
+    ----- stdout -----
+    # This file was autogenerated by uv via the following command:
+    #    uv pip compile --cache-dir [CACHE_DIR] requirements.in --emit-index-url --extra-index-url=https://test.pypi.org/simple/
+    --index-url https://pypi.org/simple
+    --extra-index-url https://test.pypi.org/simple/
+
+    iniconfig==2.0.0
+        # via -r requirements.in
+
+    ----- stderr -----
+    Resolved 1 package in [TIME]
     "###
     );