add a github action job to identify unused deps

.github/workflows/CICD.yml

@@ -708,3 +708,35 @@ jobs:
         flags: ${{ steps.vars.outputs.CODECOV_FLAGS }}
         name: codecov-umbrella
         fail_ci_if_error: false
+
+  unused_deps:
+    name: Unused deps
+    runs-on: ${{ matrix.job.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        job:
+          - { os: ubuntu-latest , features: feat_os_unix }
+          - { os: macos-latest   , features: feat_os_macos }
+          - { os: windows-latest , features: feat_os_windows }
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install `rust` toolchain
+      uses: actions-rs/toolchain@v1
+      with:
+        toolchain: nightly
+        default: true
+        profile: minimal
+    - name: Install `cargo-udeps`
+      uses: actions-rs/install@v0.1
+      with:
+        crate: cargo-udeps
+        version: latest
+        use-tool-cache: true
+      env:
+        RUSTUP_TOOLCHAIN: stable
+    - name: Confirms there isn't any unused deps
+      shell: bash
+      run: |
+        cargo +nightly udeps --all-targets &> udeps.log || cat udeps.log
+        grep "seem to have been used" udeps.log

.vscode/cspell.dictionaries/jargon.wordlist.txt

@@ -117,6 +117,7 @@ toolchain
 truthy
 ucase
 unbuffered
+udeps
 unescape
 unintuitive
 unprefixed

src/uu/base32/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "base32"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/base64/Cargo.toml

@@ -23,3 +23,7 @@ uu_base32 = { version=">=0.0.6", package="uu_base32", path="../base32"}
 [[bin]]
 name = "base64"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/basename/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "basename"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/basenc/Cargo.toml

@@ -23,3 +23,7 @@ uu_base32 = { version=">=0.0.6", package="uu_base32", path="../base32"}
 [[bin]]
 name = "basenc"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/cksum/Cargo.toml

@@ -23,3 +23,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "cksum"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/comm/Cargo.toml

@@ -23,3 +23,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "comm"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/cp/Cargo.toml

@@ -45,3 +45,7 @@ path = "src/main.rs"
 [features]
 feat_selinux = ["selinux"]
 feat_acl = ["exacl"]
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/csplit/Cargo.toml

@@ -24,3 +24,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "csplit"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/cut/Cargo.toml

@@ -25,3 +25,7 @@ atty = "0.2"
 [[bin]]
 name = "cut"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/date/Cargo.toml

@@ -29,3 +29,7 @@ winapi = { version = "0.3", features = ["minwinbase", "sysinfoapi", "minwindef"]
 [[bin]]
 name = "date"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/dd/Cargo.toml

@@ -31,3 +31,7 @@ signal-hook = "0.3.9"
 [[bin]]
 name = "dd"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/dircolors/Cargo.toml

@@ -23,3 +23,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "dircolors"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/expand/Cargo.toml

@@ -23,3 +23,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "expand"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/expr/Cargo.toml

@@ -26,3 +26,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "expr"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/factor/Cargo.toml

@@ -34,3 +34,7 @@ path = "src/main.rs"
 
 [lib]
 path = "src/cli.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/fmt/Cargo.toml

@@ -24,3 +24,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "fmt"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/fold/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "fold"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/hashsum/Cargo.toml

@@ -33,3 +33,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "hashsum"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/head/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "head"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/join/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "join"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/link/Cargo.toml

@@ -23,3 +23,7 @@ clap = { version = "2.33", features = ["wrap_help"] }
 [[bin]]
 name = "link"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/ls/Cargo.toml

@@ -34,3 +34,7 @@ lazy_static = "1.4.0"
 [[bin]]
 name = "ls"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/more/Cargo.toml

@@ -33,3 +33,7 @@ nix = "0.19"
 [[bin]]
 name = "more"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/mv/Cargo.toml

@@ -23,3 +23,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "mv"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/nl/Cargo.toml

@@ -27,3 +27,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "nl"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/numfmt/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "numfmt"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/od/Cargo.toml

@@ -25,3 +25,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "od"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/paste/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "paste"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/pr/Cargo.toml

@@ -27,3 +27,7 @@ regex = "1.0"
 [[bin]]
 name = "pr"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/printenv/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "printenv"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/printf/Cargo.toml

@@ -26,3 +26,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "printf"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/ptx/Cargo.toml

@@ -27,3 +27,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "ptx"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/readlink/Cargo.toml

@@ -23,3 +23,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "readlink"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/realpath/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "realpath"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/relpath/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "relpath"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/rm/Cargo.toml

@@ -27,3 +27,7 @@ winapi = { version="0.3", features=[] }
 [[bin]]
 name = "rm"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/seq/Cargo.toml

@@ -24,3 +24,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "seq"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/shred/Cargo.toml

@@ -24,3 +24,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "shred"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/shuf/Cargo.toml

@@ -23,3 +23,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "shuf"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/split/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "split"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/sum/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "sum"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/tac/Cargo.toml

@@ -24,3 +24,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "tac"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/tail/Cargo.toml

@@ -33,3 +33,7 @@ libc = "0.2"
 [[bin]]
 name = "tail"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/tee/Cargo.toml

@@ -24,3 +24,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "tee"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/test/Cargo.toml

@@ -26,3 +26,7 @@ redox_syscall = "0.2"
 [[bin]]
 name = "test"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/tr/Cargo.toml

@@ -24,3 +24,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "tr"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/truncate/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "truncate"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/tsort/Cargo.toml

@@ -22,3 +22,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "tsort"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/unexpand/Cargo.toml

@@ -23,3 +23,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "unexpand"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/uniq/Cargo.toml

@@ -24,3 +24,7 @@ uucore_procs = { version=">=0.0.6", package="uucore_procs", path="../../uucore_p
 [[bin]]
 name = "uniq"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]

src/uu/wc/Cargo.toml

@@ -29,3 +29,7 @@ libc = "0.2"
 [[bin]]
 name = "wc"
 path = "src/main.rs"
+
+[package.metadata.cargo-udeps.ignore]
+# Necessary for "make all"
+normal = ["uucore_procs"]