From a281dc1e950ef118c927d91f8bdc1226ff884dbc Mon Sep 17 00:00:00 2001 From: Matthias Beyer Date: Sun, 7 Oct 2018 17:17:19 +0200 Subject: Initial import --- .gitignore | 2 + .travis.yml | 36 ++++++ Cargo.lock | 365 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Cargo.toml | 17 +++ LICENSE | 346 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ README.md | 33 ++++++ src/main.rs | 203 +++++++++++++++++++++++++++++++++ 7 files changed, 1002 insertions(+) create mode 100644 .gitignore create mode 100644 .travis.yml create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 LICENSE create mode 100644 README.md create mode 100644 src/main.rs diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..53eaa21 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +/target +**/*.rs.bk diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 0000000..8bf4908 --- /dev/null +++ b/.travis.yml @@ -0,0 +1,36 @@ +sudo: false +os: + - linux + 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+[package] +name = "amt" +version = "0.1.0" +authors = ["Matthias Beyer "] +description = "Accumulate git-trailers from emails grouped by mail subject" +keywords = ["tool", "git", "cli", "mail", "email"] +categories = ["command-line-utilities", "email"] +readme = "README.md" +license = "GPL-2.0" +repository = "https://github.com/matthiasbeyer/amt" + +[dependencies] +walkdir = "2" +mailparse = "0.6" +clap = "2" +regex = "1" +itertools = "0.7" diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..2d494c3 --- /dev/null +++ b/LICENSE @@ -0,0 +1,346 @@ + + Note that the only valid version of the GPL as far as this project + is concerned is _this_ particular version of the license (ie v2, not + v2.2 or v3.x or whatever), unless explicitly otherwise stated. + +---------------------------------------- + + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Lesser General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. 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For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. 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It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License along + with this program; if not, write to the Free Software Foundation, Inc., + 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. diff --git a/README.md b/README.md new file mode 100644 index 0000000..88fdbec --- /dev/null +++ b/README.md @@ -0,0 +1,33 @@ +# amt - accumulate mail trailers + +`amt` is a helper for accumulating git trailers from email threads. + +## Workflow + +It can be used to accumulate git-trailers on a per-patch basis. The suggested +workflow is: + +* Save all mails of a mail thread into a new maildir. +* Run `amt /path/to/maildir ""` +* `amt` outputs each mail subject with all trailers in the following format: + '{mail subject, prefix stripped} - {trailer}'. + For example: + + Fix Typo - Suggested-by: Heinz Dieter + Fix Typo - Signed-off-by: Main Tainer + Implement feature - Reviewed-By: R. Viewer + Implement feature - Suggested-By: R. Viewer + Implement feature - Signed-off-by: Main Tainer + + +## Dependencies + +`amt` uses `git-interpret-trailers` for interpreting trailers. It expects it +to be in `$PATH`. + +Dependencies are therefor rust and cargo for building and git for runtime. + + +## License + +GNU GPLv2.0 diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..717c715 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,203 @@ +// amt - accumulate mail trailers +// Copyright (C) 2018 Matthias Beyer +// +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2 as +// published by the Free Software Foundation. +// + +extern crate walkdir; +extern crate mailparse; +extern crate clap; +extern crate regex; +extern crate itertools; + +use std::path::PathBuf; +use std::process::exit as exit; + +use clap::{Arg, App}; +use walkdir::WalkDir; +use regex::RegexBuilder; +use itertools::Itertools; + +fn main() { + let matches = App::new("amt") + .version("0.1") + .author("Matthias Beyer ") + .about("Accumulate git trailers from email threads") + .arg(Arg::with_name("maildirpath") + .index(1) + .value_name("MAILDIR") + .required(true) + .multiple(false) + .takes_value(true) + .help("The path of the maildir to fetch mail from")) + .arg(Arg::with_name("msgid") + .index(2) + .value_name("MESSAGE-ID") + .required(true) + .multiple(false) + .takes_value(true) + .help("A message ID of any mail in the thread to fetch the trailers from")) + .arg(Arg::with_name("subject-replace-regex") + .long("subj-replace") + .short("S") + .value_name("PATTERN") + .required(false) + .multiple(false) + .takes_value(true) + .default_value("^\\[PATCH.*\\] ") + .help("A regex which is used to replace '[PATCH] '-prefixes in a message subjects. The used regex engine suports unicode and runs in case-insensitive mode.")) + + .get_matches(); + + let maildir = matches + .value_of("maildirpath") + .map(String::from) + .map(PathBuf::from) + .unwrap(); // unwrap safe by clap + + let msgid = matches + .value_of("msgid") + .unwrap(); // unwrap safe by clap + + let subject_replace_regex = RegexBuilder::new(matches.value_of("subject-replace-regex").unwrap()) // safe by clap + .multi_line(false) + .dot_matches_new_line(false) + .ignore_whitespace(false) + .unicode(true) + .case_insensitive(true) + .build() + .unwrap_or_else(|e| { + eprintln!("Error building Regex: {:?}", e); + exit(1) + }); + + WalkDir::new(maildir) + .max_depth(usize::max_value()) + .follow_links(false) + .max_open(50) + .into_iter() + .map(|entry| entry.unwrap_or_else(|e| { + eprintln!("IO Error: {:?}", e); + exit(1) + })) + .filter_map(|entry| if entry.file_type().is_file() { + Some(entry.into_path()) + } else { + None + }) + .filter_map(|path| { + let plain = ::std::fs::read_to_string(path.clone()).unwrap_or_else(|e| { + eprintln!("Failed to read file: {} - {:?}", path.display(), e); + exit(1) + }); + + let (related, stripped_subject) = { + let headers = ::mailparse::parse_mail(plain.as_bytes()) + .unwrap_or_else(|e| { + eprintln!("Failed to parse mail: {} - {:?}", path.display(), e); + exit(1) + }) + .headers; + + let related = headers + .iter() + .any(|hdr| { + let key = hdr + .get_key() + .unwrap_or_else(|e| { + eprintln!("Failed to get mail header key: {} - {:?}", path.display(), e); + exit(1) + }); + + if key == "Message-ID" + || key == "Message-Id" + || key == "References" + { + let value = hdr.get_value().unwrap_or_else(|e| { + eprintln!("Failed to get mail header value: {} - {:?}", path.display(), e); + exit(1) + }); + + value == msgid + } else { + false + } + }); + + if related { + let subj = headers + .iter() + .filter_map(|hdr| if hdr + .get_key() + .unwrap_or_else(|e| { + eprintln!("Failed to get mail header key: {} - {:?}", path.display(), e); + exit(1) + }) == "Subject" { + Some(hdr.get_value().unwrap_or_else(|e| { + eprintln!("Failed to get mail header value: {} - {:?}", path.display(), e); + exit(1) + })) + } else { + None + } + ) + .next(); + (true, subj) + } else { + (false, None) + } + }; + + if related { + Some((plain, stripped_subject.unwrap())) + } else { + None + } + }) + .map(|(plain, subj)| { + (plain, subject_replace_regex.replace(&subj, "").to_string()) + }) + .group_by(|tpl| tpl.1.clone()) + .into_iter() + .map(|(key, group)| { + (key, Iterator::flatten(group.map(|tpl| get_trailers(&tpl.0))).collect::>()) + }) + .for_each(|(subject, trailers)| { + trailers.iter().for_each(|trailer| { + println!("{} - {}", subject, trailer); + }) + }) +} + +fn get_trailers(message: &String) -> Vec { + use std::process::Command; + use std::process::Stdio; + use std::io::Write; + + let mut sub = Command::new("git") + .args(&["interpret-trailers", "--only-trailers"]) + .stdin(Stdio::piped()) + .stdout(Stdio::piped()) + .spawn() + .expect("Failed to start git-interpret-trailers as subprocess"); + + { + sub.stdin + .as_mut() + .expect("Failed to open stdin of child process") + .write_all(message.as_bytes()) + .expect("Failed to write message to git-interpret-trailers"); + } + + let output = sub + .wait_with_output() + .expect("Failed to read from child process"); + + String::from_utf8(output.stdout) + .expect("Failed converting child process output to String object. Not UTF8?") + .lines() + .map(String::from) + .collect() +} -- cgit v1.2.3