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66 lines
2.9 KiB
66 lines
2.9 KiB
2 years ago
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# `enumerate-ordered` - Order files by their timestamps
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A shell utility to order input files by their modified, created, or accessed time.
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# Usage
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The tool can take input paths from the command line or as lines from standard input if there are none provided on the command line.
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It will output an ordered, newline-deliminated set of pathnames only after consuming its entire input.
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## Modes
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* `enumerate-ordered [OPTIONS] [--] [<files...>]`
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** According to OPTIONS, given input file/directory paths `files...` (or, if empty, paths read from `stdin`), write them to `stdout` ordered by their metadata's timecodes
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* `enumerate-ordered --help`
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** Print this help message to `stderr`, then exit with code 0.
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## Options
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* `-r`, `--recursive <limit>` - Recursively sort input files, up to `<limit>` (set to 0 for infniite); if limit is not specified, recursion is infinite
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* `-a`, `--atime` - Sort by atime
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* `-c`, `--ctime` - Sort by ctime (default)
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* `-m`, `--mtime` - Sort by mtime
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* `-n`, `--reverse` - Print output in reverse
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* `-p`, `--parallel cpus|<max tasks>` - Run tasks in parallel, with a max number of tasks being equal `<max tasks>`, or, if 0, to infinity (see `-P`), if 'cpus', to the number of logical CPU cores (default)
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* `-P`, `--parallel 0` - Run tasks with unbounded parallelism, no limit to the number of walker tasks running at once (note: the physical thread pool will always be the same size regardless of these flags)
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* `-1`, `--parallel 1` - Only let one directory be processed at once
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* `-`, `--` - Stop parsing arguments, treat the rest as input paths
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## Env vars
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*`RUST_LOG` - Control the logging (to stderr) level.
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** "none" - No output.
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** "error" - Errors only.
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** "warn" - Warnings and above.
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** "info" - Information and above.
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** "debug" - Debug information and above.
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** "trace" - All recorded information.
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# Example
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``` shell
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$ enumerate-ordered -Pnrm . # Recusrively and with unbounded parallel discovery print all files in the current directory in reverse order of their `atime` metadata fields.
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$ ls -1 | grep -v '^\.' | enumerate-ordered -r # Recursively with bounded parallel discovery print all files in paths read from stdin (list of the current directory except any dotfiles/directories, e.g. '.git') in order of their `ctime` fields.
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$ enumerate-ordered -1a .. . # With no parallel discovery or recursion print all files in the current and parent directory in order of their `atime` fields
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```
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# Building
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You need `rust` and `cargo` installed to build the project.
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Run:
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``` shell
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$ cargo build --release
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```
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To create the optimised binary in `./target/release/enumerate-ordered`.
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## Build options
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There are no compile-time flags (yet.)
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To create debug builds, you can run:
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``` shell
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$ cargo build
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```
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To create the unoptimised binary in `./target/debug/enumerate-ordered`.
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Or, alternatively, for profiling:
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``` shell
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$ cargo build --profile prof
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```
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Will create a non-stripped optimised binary in `./target/prof/enumerate-ordered`.
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# License
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GPL'd with <3
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