df: move BlockSize to a new module, blocks.rs

src/uu/df/src/blocks.rs

@@ -0,0 +1,56 @@
+//  * This file is part of the uutils coreutils package.
+//  *
+//  * For the full copyright and license information, please view the LICENSE
+//  * file that was distributed with this source code.
+//! Types for representing and displaying block sizes.
+use crate::{OPT_HUMAN_READABLE, OPT_HUMAN_READABLE_2};
+use clap::ArgMatches;
+
+/// A block size to use in condensing the display of a large number of bytes.
+///
+/// The [`BlockSize::Bytes`] variant represents a static block
+/// size. The [`BlockSize::HumanReadableDecimal`] and
+/// [`BlockSize::HumanReadableBinary`] variants represent dynamic
+/// block sizes: as the number of bytes increases, the divisor
+/// increases as well (for example, from 1 to 1,000 to 1,000,000 and
+/// so on in the case of [`BlockSize::HumanReadableDecimal`]).
+///
+/// The default variant is `Bytes(1024)`.
+pub(crate) enum BlockSize {
+    /// A fixed number of bytes.
+    ///
+    /// The number must be positive.
+    Bytes(u64),
+
+    /// Use the largest divisor corresponding to a unit, like B, K, M, G, etc.
+    ///
+    /// This variant represents powers of 1,000. Contrast with
+    /// [`BlockSize::HumanReadableBinary`], which represents powers of
+    /// 1,024.
+    HumanReadableDecimal,
+
+    /// Use the largest divisor corresponding to a unit, like B, K, M, G, etc.
+    ///
+    /// This variant represents powers of 1,024. Contrast with
+    /// [`BlockSize::HumanReadableDecimal`], which represents powers
+    /// of 1,000.
+    HumanReadableBinary,
+}
+
+impl Default for BlockSize {
+    fn default() -> Self {
+        Self::Bytes(1024)
+    }
+}
+
+impl From<&ArgMatches> for BlockSize {
+    fn from(matches: &ArgMatches) -> Self {
+        if matches.is_present(OPT_HUMAN_READABLE) {
+            Self::HumanReadableBinary
+        } else if matches.is_present(OPT_HUMAN_READABLE_2) {
+            Self::HumanReadableDecimal
+        } else {
+            Self::default()
+        }
+    }
+}

src/uu/df/src/df.rs

@@ -6,6 +6,7 @@
 // For the full copyright and license information, please view the LICENSE file
 // that was distributed with this source code.
 // spell-checker:ignore itotal iused iavail ipcent pcent tmpfs squashfs
+mod blocks;
 mod table;
 
 #[cfg(unix)]
@@ -21,6 +22,7 @@ use std::iter::FromIterator;
 #[cfg(windows)]
 use std::path::Path;
 
+use crate::blocks::BlockSize;
 use crate::table::{DisplayRow, Header, Row};
 
 static ABOUT: &str = "Show information about the file system on which each FILE resides,\n\
@@ -57,55 +59,6 @@ struct FsSelector {
     exclude: HashSet<String>,
 }
 
-/// A block size to use in condensing the display of a large number of bytes.
-///
-/// The [`BlockSize::Bytes`] variant represents a static block
-/// size. The [`BlockSize::HumanReadableDecimal`] and
-/// [`BlockSize::HumanReadableBinary`] variants represent dynamic
-/// block sizes: as the number of bytes increases, the divisor
-/// increases as well (for example, from 1 to 1,000 to 1,000,000 and
-/// so on in the case of [`BlockSize::HumanReadableDecimal`]).
-///
-/// The default variant is `Bytes(1024)`.
-enum BlockSize {
-    /// A fixed number of bytes.
-    ///
-    /// The number must be positive.
-    Bytes(u64),
-
-    /// Use the largest divisor corresponding to a unit, like B, K, M, G, etc.
-    ///
-    /// This variant represents powers of 1,000. Contrast with
-    /// [`BlockSize::HumanReadableBinary`], which represents powers of
-    /// 1,024.
-    HumanReadableDecimal,
-
-    /// Use the largest divisor corresponding to a unit, like B, K, M, G, etc.
-    ///
-    /// This variant represents powers of 1,024. Contrast with
-    /// [`BlockSize::HumanReadableDecimal`], which represents powers
-    /// of 1,000.
-    HumanReadableBinary,
-}
-
-impl Default for BlockSize {
-    fn default() -> Self {
-        Self::Bytes(1024)
-    }
-}
-
-impl From<&ArgMatches> for BlockSize {
-    fn from(matches: &ArgMatches) -> Self {
-        if matches.is_present(OPT_HUMAN_READABLE) {
-            Self::HumanReadableBinary
-        } else if matches.is_present(OPT_HUMAN_READABLE_2) {
-            Self::HumanReadableDecimal
-        } else {
-            Self::default()
-        }
-    }
-}
-
 /// Parameters that control the behavior of `df`.
 ///
 /// Most of these parameters control which rows and which columns are