Merge #3305

3305: Remove hidden but usable CLI arguments r=Kerollmops a=Kerollmops

`@curquiza` found out that we were exposing some internal CLI arguments: `nb-max-chunks` and `log-every-n`. In this PR I removed those two, the only two ones that I found. Those options shouldn't be accessible as non-documented in the documentation or the `--help` message.

Fixes https://github.com/meilisearch/meilisearch/issues/3307

Co-authored-by: Clément Renault <clement@meilisearch.com>

meilisearch/src/analytics/segment_analytics.rs

@@ -280,12 +280,7 @@ impl From<Opt> for Infos {
             ScheduleSnapshot::Enabled(interval) => Some(interval),
         };
 
-        let IndexerOpts {
-            log_every_n: _,
-            max_nb_chunks: _,
-            max_indexing_memory,
-            max_indexing_threads,
-        } = indexer_options;
+        let IndexerOpts { max_indexing_memory, max_indexing_threads } = indexer_options;
 
         // We're going to override every sensible information.
         // We consider information sensible if it contains a path, an address, or a key.

meilisearch/src/option.rs

@@ -62,7 +62,7 @@ const DEFAULT_DUMP_DIR: &str = "dumps/";
 
 const MEILI_MAX_INDEXING_MEMORY: &str = "MEILI_MAX_INDEXING_MEMORY";
 const MEILI_MAX_INDEXING_THREADS: &str = "MEILI_MAX_INDEXING_THREADS";
-const DEFAULT_LOG_EVERY_N: usize = 100000;
+const DEFAULT_LOG_EVERY_N: usize = 100_000;
 
 // Each environment (index and task-db) is taking space in the virtual address space.
 //
@@ -87,6 +87,7 @@ pub enum LogLevel {
 pub struct LogLevelError {
     pub given_log_level: String,
 }
+
 impl Display for LogLevelError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         writeln!(
@@ -96,6 +97,7 @@ impl Display for LogLevelError {
         )
     }
 }
+
 impl Display for LogLevel {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
@@ -108,7 +110,9 @@ impl Display for LogLevel {
         }
     }
 }
+
 impl std::error::Error for LogLevelError {}
+
 impl FromStr for LogLevel {
     type Err = LogLevelError;
 
@@ -476,18 +480,8 @@ impl Opt {
     }
 }
 
-#[derive(Debug, Clone, Parser, Deserialize)]
+#[derive(Debug, Default, Clone, Parser, Deserialize)]
 pub struct IndexerOpts {
-    /// Sets the amount of documents to skip before printing
-    /// a log regarding the indexing advancement.
-    #[serde(default = "default_log_every_n")]
-    #[clap(long, default_value_t = default_log_every_n(), hide = true)] // 100k
-    pub log_every_n: usize,
-
-    /// Grenad max number of chunks in bytes.
-    #[clap(long, hide = true)]
-    pub max_nb_chunks: Option<usize>,
-
     /// Sets the maximum amount of RAM Meilisearch can use when indexing. By default, Meilisearch
     /// uses no more than two thirds of available memory.
     #[clap(long, env = MEILI_MAX_INDEXING_MEMORY, default_value_t)]
@@ -505,12 +499,7 @@ pub struct IndexerOpts {
 impl IndexerOpts {
     /// Exports the values to their corresponding env vars if they are not set.
     pub fn export_to_env(self) {
-        let IndexerOpts {
-            max_indexing_memory,
-            max_indexing_threads,
-            log_every_n: _,
-            max_nb_chunks: _,
-        } = self;
+        let IndexerOpts { max_indexing_memory, max_indexing_threads } = self;
         if let Some(max_indexing_memory) = max_indexing_memory.0 {
             export_to_env_if_not_present(
                 MEILI_MAX_INDEXING_MEMORY,
@@ -534,8 +523,7 @@ impl TryFrom<&IndexerOpts> for IndexerConfig {
             .build()?;
 
         Ok(Self {
-            log_every_n: Some(other.log_every_n),
-            max_nb_chunks: other.max_nb_chunks,
+            log_every_n: Some(DEFAULT_LOG_EVERY_N),
             max_memory: other.max_indexing_memory.map(|b| b.get_bytes() as usize),
             thread_pool: Some(thread_pool),
             max_positions_per_attributes: None,
@@ -544,17 +532,6 @@ impl TryFrom<&IndexerOpts> for IndexerConfig {
     }
 }
 
-impl Default for IndexerOpts {
-    fn default() -> Self {
-        Self {
-            log_every_n: 100_000,
-            max_nb_chunks: None,
-            max_indexing_memory: MaxMemory::default(),
-            max_indexing_threads: MaxThreads::default(),
-        }
-    }
-}
-
 /// A type used to detect the max memory available and use 2/3 of it.
 #[derive(Debug, Clone, Copy, Deserialize, Serialize)]
 pub struct MaxMemory(Option<Byte>);
@@ -739,10 +716,6 @@ fn default_dump_dir() -> PathBuf {
     PathBuf::from(DEFAULT_DUMP_DIR)
 }
 
-fn default_log_every_n() -> usize {
-    DEFAULT_LOG_EVERY_N
-}
-
 /// Indicates if a snapshot was scheduled, and if yes with which interval.
 #[derive(Debug, Default, Copy, Clone, Deserialize, Serialize)]
 pub enum ScheduleSnapshot {