better DLL/EXE support, fixed weird symlink semidemihemibug

CHANGELOG.md

@@ -9,6 +9,7 @@ Dates are given in YYYY-MM-DD format.
 - PKGBUILD for Arch-based distros
 - Added Text extension set
 - More test coverage
+- Fixed a very minor output bug relating to scanning symlinked directories
 
 ### v0.2.11 (2021-04-04)
 #### Features

Cargo.lock

@@ -79,9 +79,9 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-channel"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dca26ee1f8d361640700bde38b2c37d8c22b3ce2d360e1fc1c74ea4b0aa7d775"
+checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
 dependencies = [
  "cfg-if",
  "crossbeam-utils",
@@ -250,9 +250,9 @@ dependencies = [
 
 [[package]]
 name = "infer"
-version = "0.3.6"
+version = "0.3.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0803735b9511d0956c68902a6513ca867819d6e43397adb6a5e903e2f09db734"
+checksum = "865e8a58ae8e24d2c4412c31344afa1d302a3740ad67528c10f50d6876cdcf55"
 
 [[package]]
 name = "instant"
@@ -321,7 +321,7 @@ checksum = "2a60c7ce501c71e03a9c9c0d35b861413ae925bd979cc7a4e30d060069aaac8d"
 [[package]]
 name = "mime_guess"
 version = "2.0.4"
-source = "git+https://github.com/Lynnesbian/mime_guess#679d3b8887d30bd43a83f162d61b7226675c7012"
+source = "git+https://github.com/Lynnesbian/mime_guess#55fe99663a1b78ad5f50ffe1a9aaeb65fb2cb4ca"
 dependencies = [
  "mime",
  "unicase",
@@ -475,9 +475,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.5"
+version = "0.2.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94341e4e44e24f6b591b59e47a8a027df12e008d73fd5672dbea9cc22f4507d9"
+checksum = "8270314b5ccceb518e7e578952f0b72b88222d02e8f77f5ecf7abbb673539041"
 dependencies = [
  "bitflags",
 ]

Cargo.toml

@@ -24,18 +24,18 @@ infer-backend = []
 xdg-mime-backend = []
 
 [dependencies]
-walkdir = "2.3.1"
+walkdir = "2.3.2"
 log = "0.4.14"
 mime_guess = "2.0.3"
 snailquote = "0.3.0"
-once_cell = "1.5.2"
-infer = { version = "0.3.4" }
+once_cell = "1.7.2"
+infer = "0.3.6"
 rayon = { version = "1.5.0", optional = true }
 exitcode = "1.1.2"
 cfg-if = "1.0.0"
 
 [target.'cfg(unix)'.dependencies]
-xdg-mime = "0.3"
+xdg-mime = "0.3.2"
 
 [target.'cfg(not(all(target_endian = "big", target_pointer_width = "32")))'.dependencies]
 smartstring = "0.2.6"
@@ -52,7 +52,7 @@ default-features = false
 features = ["wrap_help", "color", "derive", "std"]
 
 [dependencies.env_logger]
-version = "0.8.2"
+version = "0.8.3"
 default-features = false
 features = ["termcolor", "atty"]
 

src/inspectors.rs

@@ -117,6 +117,10 @@ cached! {
 					// neither xdg-mime nor infer seem to be able to detect office XML files properly...
 					[vec![String::from("zip"), String::from("docx"), String::from("xlsx"), String::from("pptx")], possible_exts].concat()
 
+				} else if mime == Mime::from_str("application/x-ms-dos-executable").unwrap() {
+					// both .dll and .exe files are given the same mime type... but you definitely don't want to rename one to the
+					// other!
+					[vec![String::from("dll"), String::from("exe")], possible_exts].concat()
 				} else {
 					possible_exts
 				})

src/main.rs

@@ -15,6 +15,7 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 #![forbid(unsafe_code)]
+#![warn(trivial_casts, unused_lifetimes, unused_qualifications)]
 
 use std::io::{stdout, BufWriter};
 use std::path::Path;
@@ -301,7 +302,16 @@ fn scan_directory(dirs: &Path, exts: Option<&Vec<&str>>, scan_opts: &ScanOpts) -
 			}
 			e.ok()
 		})
-		.filter(|e| !e.file_type().is_dir()) // remove directories from the final list
+		// remove directories from the final list
+		.filter(|e| !e.file_type().is_dir())
+		// if fif is invoked without `-f` on a symlinked directory, it will recurse into the symlink (as desired) and ignore
+		// any symlinks inside the symlinked root directory. however, the root directory will still be added to `entries` as
+		// if it were a file to be scanned, and `scan_file` will fail to scan it, adding "Failed to read ~/whatever" to the
+		// output. to avoid this, we can remove all symlinks from `entries` if `-f` is not set. i know this is kind of
+		// confusing, but it's honestly kind of hard to explain... maybe a screenshot is better:
+		// https://i.imgur.com/DYG7jlB.png
+		// adding the symlink filter removes the line that's being pointed to in the image. 0u0
+		.filter(|e| scan_opts.follow_symlinks || !e.file_type().is_symlink())
 		.collect();
 
 	if probably_fatal_error {