mirror of
https://github.com/RGBCube/uutils-coreutils
synced 2025-07-28 03:27:44 +00:00
tail: moving to clap from getopt (#1689)
This commit is contained in:
Gaurang Tandon
GitHub
parent
04b92f3e94
commit
ac7cac2910
3 changed files with 179 additions and 125 deletions
106
Cargo.lock
generated
106
Cargo.lock
generated
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@ -103,7 +103,7 @@ dependencies = [
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"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"memchr 2.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"regex-automata 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -210,7 +210,7 @@ dependencies = [
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"rustc-demangle 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
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"same-file 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
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"sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"tempfile 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
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"unindent 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -406,9 +406,9 @@ dependencies = [
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"plotters 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
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"rayon 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"regex 1.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_cbor 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_derive 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_json 1.0.61 (registry+https://github.com/rust-lang/crates.io-index)",
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"tinytemplate 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -474,7 +474,7 @@ dependencies = [
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"csv-core 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
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"itoa 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
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"ryu 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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@ -580,6 +580,16 @@ dependencies = [
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"wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "getrandom"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
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"wasi 0.10.1+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "glob"
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version = "0.2.11"
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@ -918,6 +928,17 @@ dependencies = [
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"rand_pcg 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand"
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version = "0.8.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand_chacha 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand_core 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand_hc 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand_chacha"
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version = "0.2.2"
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@ -927,6 +948,15 @@ dependencies = [
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"rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand_chacha"
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version = "0.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"ppv-lite86 0.2.10 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand_core 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand_core"
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version = "0.3.1"
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@ -948,6 +978,14 @@ dependencies = [
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"getrandom 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand_core"
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version = "0.6.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"getrandom 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand_hc"
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version = "0.2.0"
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@ -956,6 +994,14 @@ dependencies = [
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"rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand_hc"
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version = "0.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"rand_core 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "rand_pcg"
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version = "0.2.1"
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@ -992,6 +1038,14 @@ name = "redox_syscall"
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version = "0.1.57"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "redox_syscall"
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version = "0.2.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "redox_termios"
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version = "0.1.1"
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@ -1083,7 +1137,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "serde"
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version = "1.0.118"
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version = "1.0.119"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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@ -1092,12 +1146,12 @@ version = "0.11.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"half 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "serde_derive"
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version = "1.0.118"
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version = "1.0.119"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"proc-macro2 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -1112,7 +1166,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"itoa 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
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"ryu 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -1168,13 +1222,13 @@ dependencies = [
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[[package]]
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name = "tempfile"
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version = "3.1.0"
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version = "3.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
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"cfg-if 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_syscall 0.1.57 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_syscall 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
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"remove_dir_all 0.5.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"winapi 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -1269,7 +1323,7 @@ name = "tinytemplate"
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version = "1.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_json 1.0.61 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -1758,7 +1812,7 @@ version = "0.0.2"
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dependencies = [
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"clap 2.33.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"rand 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
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"tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"tempfile 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"uucore 0.0.5",
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"uucore_procs 0.0.5",
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]
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@ -2043,7 +2097,7 @@ name = "uu_stdbuf"
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version = "0.0.2"
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dependencies = [
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"getopts 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
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"tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"tempfile 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"uu_stdbuf_libstdbuf 0.0.2",
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"uucore 0.0.5",
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"uucore_procs 0.0.5",
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@ -2093,7 +2147,7 @@ dependencies = [
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name = "uu_tail"
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version = "0.0.2"
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dependencies = [
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"getopts 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
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"clap 2.33.3 (registry+https://github.com/rust-lang/crates.io-index)",
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"libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
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"redox_syscall 0.1.57 (registry+https://github.com/rust-lang/crates.io-index)",
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"uucore 0.0.5",
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@ -2337,6 +2391,11 @@ name = "wasi"
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version = "0.9.0+wasi-snapshot-preview1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "wasi"
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version = "0.10.1+wasi-snapshot-preview1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "wasm-bindgen"
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version = "0.2.69"
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@ -2505,6 +2564,7 @@ dependencies = [
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"checksum generic-array 0.8.3 (registry+https://github.com/rust-lang/crates.io-index)" = "fceb69994e330afed50c93524be68c42fa898c2d9fd4ee8da03bd7363acd26f2"
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"checksum getopts 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)" = "14dbbfd5c71d70241ecf9e6f13737f7b5ce823821063188d7e46c41d371eebd5"
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"checksum getrandom 0.1.16 (registry+https://github.com/rust-lang/crates.io-index)" = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
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"checksum getrandom 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4060f4657be78b8e766215b02b18a2e862d83745545de804638e2b545e81aee6"
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"checksum glob 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)" = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
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"checksum glob 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
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"checksum half 1.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d36fab90f82edc3c747f9d438e06cf0a491055896f2a279638bb5beed6c40177"
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@ -2551,15 +2611,20 @@ dependencies = [
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"checksum quote 1.0.8 (registry+https://github.com/rust-lang/crates.io-index)" = "991431c3519a3f36861882da93630ce66b52918dcf1b8e2fd66b397fc96f28df"
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"checksum rand 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c618c47cd3ebd209790115ab837de41425723956ad3ce2e6a7f09890947cacb9"
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"checksum rand 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)" = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
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"checksum rand 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c24fcd450d3fa2b592732565aa4f17a27a61c65ece4726353e000939b0edee34"
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"checksum rand_chacha 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f4c8ed856279c9737206bf725bf36935d8666ead7aa69b52be55af369d193402"
|
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"checksum rand_chacha 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
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"checksum rand_core 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6fdeb83b075e8266dcc8762c22776f6877a63111121f5f8c7411e5be7eed4b"
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"checksum rand_core 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "9c33a3c44ca05fa6f1807d8e6743f3824e8509beca625669633be0acbdf509dc"
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"checksum rand_core 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
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"checksum rand_core 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c026d7df8b298d90ccbbc5190bd04d85e159eaf5576caeacf8741da93ccbd2e5"
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"checksum rand_hc 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ca3129af7b92a17112d59ad498c6f81eaf463253766b90396d39ea7a39d6613c"
|
||||
"checksum rand_hc 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3190ef7066a446f2e7f42e239d161e905420ccab01eb967c9eb27d21b2322a73"
|
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"checksum rand_pcg 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "16abd0c1b639e9eb4d7c50c0b8100b0d0f849be2349829c740fe8e6eb4816429"
|
||||
"checksum rayon 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8b0d8e0819fadc20c74ea8373106ead0600e3a67ef1fe8da56e39b9ae7275674"
|
||||
"checksum rayon-core 1.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9ab346ac5921dc62ffa9f89b7a773907511cdfa5490c572ae9be1be33e8afa4a"
|
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"checksum redox_syscall 0.1.57 (registry+https://github.com/rust-lang/crates.io-index)" = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
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"checksum redox_syscall 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "05ec8ca9416c5ea37062b502703cd7fcb207736bc294f6e0cf367ac6fc234570"
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"checksum redox_termios 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7e891cfe48e9100a70a3b6eb652fef28920c117d366339687bd5576160db0f76"
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"checksum regex 1.4.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d9251239e129e16308e70d853559389de218ac275b515068abc96829d05b948a"
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"checksum regex-automata 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "ae1ded71d66a4a97f5e961fd0cb25a5f366a42a41570d16a763a69c092c26ae4"
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@ -2573,9 +2638,9 @@ dependencies = [
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"checksum scopeguard 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
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"checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"
|
||||
"checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
|
||||
"checksum serde 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)" = "06c64263859d87aa2eb554587e2d23183398d617427327cf2b3d0ed8c69e4800"
|
||||
"checksum serde 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)" = "9bdd36f49e35b61d49efd8aa7fc068fd295961fd2286d0b2ee9a4c7a14e99cc3"
|
||||
"checksum serde_cbor 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1e18acfa2f90e8b735b2836ab8d538de304cbb6729a7360729ea5a895d15a622"
|
||||
"checksum serde_derive 1.0.118 (registry+https://github.com/rust-lang/crates.io-index)" = "c84d3526699cd55261af4b941e4e725444df67aa4f9e6a3564f18030d12672df"
|
||||
"checksum serde_derive 1.0.119 (registry+https://github.com/rust-lang/crates.io-index)" = "552954ce79a059ddd5fd68c271592374bd15cab2274970380c000118aeffe1cd"
|
||||
"checksum serde_json 1.0.61 (registry+https://github.com/rust-lang/crates.io-index)" = "4fceb2595057b6891a4ee808f70054bd2d12f0e97f1cbb78689b59f676df325a"
|
||||
"checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
|
||||
"checksum sha2 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7d963c78ce367df26d7ea8b8cc655c651b42e8a1e584e869c1e17dae3ccb116a"
|
||||
|
|
@ -2583,7 +2648,7 @@ dependencies = [
|
|||
"checksum smallvec 0.6.14 (registry+https://github.com/rust-lang/crates.io-index)" = "b97fcaeba89edba30f044a10c6a3cc39df9c3f17d7cd829dd1446cab35f890e0"
|
||||
"checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
|
||||
"checksum syn 1.0.58 (registry+https://github.com/rust-lang/crates.io-index)" = "cc60a3d73ea6594cd712d830cc1f0390fd71542d8c8cd24e70cc54cdfd5e05d5"
|
||||
"checksum tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
|
||||
"checksum tempfile 3.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
|
||||
"checksum term_grid 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "230d3e804faaed5a39b08319efb797783df2fd9671b39b7596490cb486d702cf"
|
||||
"checksum term_size 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1e4129646ca0ed8f45d09b929036bafad5377103edd06e50bf574b353d2b08d9"
|
||||
"checksum termion 1.5.5 (registry+https://github.com/rust-lang/crates.io-index)" = "c22cec9d8978d906be5ac94bceb5a010d885c626c4c8855721a4dbd20e3ac905"
|
||||
|
|
@ -2604,6 +2669,7 @@ dependencies = [
|
|||
"checksum vec_map 0.8.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f1bddf1187be692e79c5ffeab891132dfb0f236ed36a43c7ed39f1165ee20191"
|
||||
"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
|
||||
"checksum walkdir 2.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "777182bc735b6424e1a57516d35ed72cb8019d85c8c9bf536dccb3445c1a2f7d"
|
||||
"checksum wasi 0.10.1+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "93c6c3420963c5c64bca373b25e77acb562081b9bb4dd5bb864187742186cea9"
|
||||
"checksum wasi 0.9.0+wasi-snapshot-preview1 (registry+https://github.com/rust-lang/crates.io-index)" = "cccddf32554fecc6acb585f82a32a72e28b48f8c4c1883ddfeeeaa96f7d8e519"
|
||||
"checksum wasm-bindgen 0.2.69 (registry+https://github.com/rust-lang/crates.io-index)" = "3cd364751395ca0f68cafb17666eee36b63077fb5ecd972bbcd74c90c4bf736e"
|
||||
"checksum wasm-bindgen-backend 0.2.69 (registry+https://github.com/rust-lang/crates.io-index)" = "1114f89ab1f4106e5b55e688b828c0ab0ea593a1ea7c094b141b14cbaaec2d62"
|
||||
|
|
|
|||
|
|
@ -15,7 +15,7 @@ edition = "2018"
|
|||
path = "src/tail.rs"
|
||||
|
||||
[dependencies]
|
||||
getopts = "0.2.18"
|
||||
clap = "2.33"
|
||||
libc = "0.2.42"
|
||||
uucore = { version=">=0.0.5", package="uucore", path="../../uucore" }
|
||||
uucore_procs = { version=">=0.0.5", package="uucore_procs", path="../../uucore_procs" }
|
||||
|
|
|
|||
|
|
@ -9,23 +9,35 @@
|
|||
|
||||
// spell-checker:ignore (ToDO) seekable seek'd tail'ing ringbuffer ringbuf
|
||||
|
||||
#[macro_use]
|
||||
extern crate clap;
|
||||
|
||||
#[macro_use]
|
||||
extern crate uucore;
|
||||
|
||||
mod platform;
|
||||
|
||||
use clap::{App, Arg};
|
||||
use std::collections::VecDeque;
|
||||
use std::error::Error;
|
||||
use std::fmt;
|
||||
use std::fs::File;
|
||||
use std::io::{stdin, stdout, BufRead, BufReader, Read, Seek, SeekFrom, Write};
|
||||
use std::path::Path;
|
||||
use std::str::from_utf8;
|
||||
use std::thread::sleep;
|
||||
use std::time::Duration;
|
||||
|
||||
static NAME: &str = "tail";
|
||||
static VERSION: &str = env!("CARGO_PKG_VERSION");
|
||||
static OPT_BYTES: &str = "bytes";
|
||||
static OPT_FOLLOW: &str = "follow";
|
||||
static OPT_LINES: &str = "lines";
|
||||
static OPT_PID: &str = "pid";
|
||||
static OPT_QUIET: &str = "quiet";
|
||||
static OPT_SILENT: &str = "silent";
|
||||
static OPT_SLEEP_INT: &str = "sleep-interval";
|
||||
static OPT_VERBOSE: &str = "verbose";
|
||||
static OPT_ZERO_TERM: &str = "zero-terminated";
|
||||
|
||||
static ARG_FILES: &str = "files";
|
||||
|
||||
enum FilterMode {
|
||||
Bytes(u64),
|
||||
|
|
@ -54,65 +66,78 @@ impl Default for Settings {
|
|||
|
||||
#[allow(clippy::cognitive_complexity)]
|
||||
pub fn uumain(args: impl uucore::Args) -> i32 {
|
||||
let args = args.collect_str();
|
||||
|
||||
let mut settings: Settings = Default::default();
|
||||
|
||||
// handle obsolete -number syntax
|
||||
let options = match obsolete(&args[1..]) {
|
||||
(args, Some(n)) => {
|
||||
settings.mode = FilterMode::Lines(n, b'\n');
|
||||
args
|
||||
}
|
||||
(args, None) => args,
|
||||
};
|
||||
let app = App::new(executable!())
|
||||
.version(crate_version!())
|
||||
.about("output the last part of files")
|
||||
.arg(
|
||||
Arg::with_name(OPT_BYTES)
|
||||
.short("c")
|
||||
.long(OPT_BYTES)
|
||||
.takes_value(true)
|
||||
.help("Number of bytes to print"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(OPT_FOLLOW)
|
||||
.short("f")
|
||||
.long(OPT_FOLLOW)
|
||||
.help("Print the file as it grows"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(OPT_LINES)
|
||||
.short("n")
|
||||
.long(OPT_LINES)
|
||||
.takes_value(true)
|
||||
.help("Number of lines to print"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(OPT_PID)
|
||||
.long(OPT_PID)
|
||||
.takes_value(true)
|
||||
.help("with -f, terminate after process ID, PID dies"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(OPT_QUIET)
|
||||
.short("q")
|
||||
.long(OPT_QUIET)
|
||||
.help("never output headers giving file names"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(OPT_SILENT)
|
||||
.long(OPT_SILENT)
|
||||
.help("synonym of --quiet"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(OPT_SLEEP_INT)
|
||||
.short("s")
|
||||
.long(OPT_SLEEP_INT)
|
||||
.help("Number or seconds to sleep between polling the file when running with -f"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(OPT_VERBOSE)
|
||||
.short("v")
|
||||
.long(OPT_VERBOSE)
|
||||
.help("always output headers giving file names"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(OPT_ZERO_TERM)
|
||||
.short("z")
|
||||
.long(OPT_ZERO_TERM)
|
||||
.help("Line delimiter is NUL, not newline"),
|
||||
)
|
||||
.arg(
|
||||
Arg::with_name(ARG_FILES)
|
||||
.multiple(true)
|
||||
.takes_value(true)
|
||||
.min_values(1),
|
||||
);
|
||||
|
||||
let args = options;
|
||||
let matches = app.get_matches_from(args);
|
||||
|
||||
let mut opts = getopts::Options::new();
|
||||
|
||||
opts.optopt("c", "bytes", "Number of bytes to print", "k");
|
||||
opts.optopt("n", "lines", "Number of lines to print", "k");
|
||||
opts.optflag("f", "follow", "Print the file as it grows");
|
||||
opts.optopt(
|
||||
"s",
|
||||
"sleep-interval",
|
||||
"Number or seconds to sleep between polling the file when running with -f",
|
||||
"n",
|
||||
);
|
||||
opts.optopt(
|
||||
"",
|
||||
"pid",
|
||||
"with -f, terminate after process ID, PID dies",
|
||||
"PID",
|
||||
);
|
||||
opts.optflag("z", "zero-terminated", "Line delimiter is NUL, not newline");
|
||||
opts.optflag("h", "help", "help");
|
||||
opts.optflag("V", "version", "version");
|
||||
opts.optflag("v", "verbose", "always output headers giving file names");
|
||||
opts.optflag("q", "quiet", "never output headers giving file names");
|
||||
opts.optflag("", "silent", "synonym of --quiet");
|
||||
|
||||
let given_options = match opts.parse(&args) {
|
||||
Ok(m) => m,
|
||||
Err(_) => {
|
||||
println!("{}", opts.usage(""));
|
||||
return 1;
|
||||
}
|
||||
};
|
||||
|
||||
if given_options.opt_present("h") {
|
||||
println!("{}", opts.usage(""));
|
||||
return 0;
|
||||
}
|
||||
if given_options.opt_present("V") {
|
||||
version();
|
||||
return 0;
|
||||
}
|
||||
|
||||
settings.follow = given_options.opt_present("f");
|
||||
settings.follow = matches.is_present(OPT_FOLLOW);
|
||||
if settings.follow {
|
||||
if let Some(n) = given_options.opt_str("s") {
|
||||
if let Some(n) = matches.value_of(OPT_SLEEP_INT) {
|
||||
let parsed: Option<u32> = n.parse().ok();
|
||||
if let Some(m) = parsed {
|
||||
settings.sleep_msec = m * 1000
|
||||
|
|
@ -120,7 +145,7 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
|
|||
}
|
||||
}
|
||||
|
||||
if let Some(pid_str) = given_options.opt_str("pid") {
|
||||
if let Some(pid_str) = matches.value_of(OPT_PID) {
|
||||
if let Ok(pid) = pid_str.parse() {
|
||||
settings.pid = pid;
|
||||
if pid != 0 {
|
||||
|
|
@ -136,7 +161,7 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
|
|||
}
|
||||
}
|
||||
|
||||
match given_options.opt_str("n") {
|
||||
match matches.value_of(OPT_LINES) {
|
||||
Some(n) => {
|
||||
let mut slice: &str = n.as_ref();
|
||||
if slice.chars().next().unwrap_or('_') == '+' {
|
||||
|
|
@ -152,7 +177,7 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
|
|||
}
|
||||
}
|
||||
None => {
|
||||
if let Some(n) = given_options.opt_str("c") {
|
||||
if let Some(n) = matches.value_of(OPT_BYTES) {
|
||||
let mut slice: &str = n.as_ref();
|
||||
if slice.chars().next().unwrap_or('_') == '+' {
|
||||
settings.beginning = true;
|
||||
|
|
@ -169,16 +194,19 @@ pub fn uumain(args: impl uucore::Args) -> i32 {
|
|||
}
|
||||
};
|
||||
|
||||
if given_options.opt_present("z") {
|
||||
if matches.is_present(OPT_ZERO_TERM) {
|
||||
if let FilterMode::Lines(count, _) = settings.mode {
|
||||
settings.mode = FilterMode::Lines(count, 0);
|
||||
}
|
||||
}
|
||||
|
||||
let verbose = given_options.opt_present("v");
|
||||
let quiet = given_options.opt_present("q") || given_options.opt_present("silent");
|
||||
let verbose = matches.is_present(OPT_VERBOSE);
|
||||
let quiet = matches.is_present(OPT_QUIET) || matches.is_present(OPT_SILENT);
|
||||
|
||||
let files = given_options.free;
|
||||
let files: Vec<String> = matches
|
||||
.values_of(ARG_FILES)
|
||||
.map(|v| v.map(ToString::to_string).collect())
|
||||
.unwrap_or_default();
|
||||
|
||||
if files.is_empty() {
|
||||
let mut buffer = BufReader::new(stdin());
|
||||
|
|
@ -313,42 +341,6 @@ pub fn parse_size(mut size_slice: &str) -> Result<u64, ParseSizeErr> {
|
|||
}
|
||||
}
|
||||
|
||||
// It searches for an option in the form of -123123
|
||||
//
|
||||
// In case is found, the options vector will get rid of that object so that
|
||||
// getopts works correctly.
|
||||
fn obsolete(options: &[String]) -> (Vec<String>, Option<u64>) {
|
||||
let mut options: Vec<String> = options.to_vec();
|
||||
let mut a = 0;
|
||||
let b = options.len();
|
||||
|
||||
while a < b {
|
||||
let current = options[a].clone();
|
||||
let current = current.as_bytes();
|
||||
|
||||
if current.len() > 1 && current[0] == b'-' {
|
||||
let len = current.len();
|
||||
for pos in 1..len {
|
||||
// Ensure that the argument is only made out of digits
|
||||
if !(current[pos] as char).is_numeric() {
|
||||
break;
|
||||
}
|
||||
|
||||
// If this is the last number
|
||||
if pos == len - 1 {
|
||||
options.remove(a);
|
||||
let number: Option<u64> = from_utf8(¤t[1..len]).unwrap().parse().ok();
|
||||
return (options, Some(number.unwrap()));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
a += 1;
|
||||
}
|
||||
|
||||
(options, None)
|
||||
}
|
||||
|
||||
/// When reading files in reverse in `bounded_tail`, this is the size of each
|
||||
/// block read at a time.
|
||||
const BLOCK_SIZE: u64 = 1 << 16;
|
||||
|
|
@ -563,7 +555,3 @@ fn print_byte<T: Write>(stdout: &mut T, ch: u8) {
|
|||
fn print_string<T: Write>(_: &mut T, s: &str) {
|
||||
print!("{}", s);
|
||||
}
|
||||
|
||||
fn version() {
|
||||
println!("{} {}", NAME, VERSION);
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue