cargo_update/
options.rs

1//! Option parsing and management.
2//!
3//! Use the `Options::parse()` function to get the program's configuration,
4//! as parsed from the commandline.
5//!
6//! # Examples
7//!
8//! ```no_run
9//! # use cargo_update::Options;
10//! let opts = Options::parse();
11//! println!("{:#?}", opts);
12//! ```
13
14
15use clap::builder::{ValueParser, TypedValueParser, NonEmptyStringValueParser, PossibleValue};
16use clap::error::{Error as ClapError, ErrorKind as ClapErrorKind};
17use self::super::ops::{PackageFilterElement, ConfigOperation};
18use semver::{VersionReq as SemverReq, Version as Semver};
19use chrono::{TimeDelta, DateTime, Utc};
20use clap::{Command, Arg, ArgAction};
21use std::ffi::{OsString, OsStr};
22use std::path::{PathBuf, Path};
23use std::fmt::Arguments;
24use whoami::username_os;
25use std::process::exit;
26use std::str::FromStr;
27use std::num::NonZero;
28use std::borrow::Cow;
29use std::{env, fs};
30use home;
31
32
33/// Representation of the application's all configurable values.
34#[derive(Debug, Clone, Hash, PartialEq, Eq)]
35pub struct Options {
36    /// (Additional) packages to update. Default: `[]`
37    pub to_update: Vec<(String, Option<Semver>, Cow<'static, str>)>,
38    /// Whether to update all packages. Default: `false`
39    pub all: bool,
40    /// Whether to update packages or just list them. Default: `true`
41    pub update: bool,
42    /// Whether to allow for just installing packages. Default: `false`
43    pub install: bool,
44    /// Update all packages. Default: `false`
45    pub force: bool,
46    /// Downdate packages to match newest unyanked registry version.
47    pub downdate: bool,
48    /// Update git packages too (it's expensive). Default: `false`
49    pub update_git: bool,
50    /// Don't output messages and pass --quiet to `cargo` subprocesses. Default: `false`
51    pub quiet: bool,
52    /// Enforce packages' embedded `Cargo.lock`. Exactly like `CARGO_INSTALL_OPTS=--locked` (or `--enforce-lock` per package)
53    /// except doesn't disable cargo-binstall. Default: `false`
54    pub locked: bool,
55    /// Only install versions released after this time. Default: `None`
56    pub released_after: Option<DateTime<Utc>>,
57    /// Update all packages. Default: empty
58    pub filter: Vec<PackageFilterElement>,
59    /// The `cargo` home directory; (original, canonicalised). Default: `"$CARGO_INSTALL_ROOT"`, then `"$CARGO_HOME"`,
60    /// then `"$HOME/.cargo"`
61    pub cargo_dir: (PathBuf, PathBuf),
62    /// The temporary directory to clone git repositories to. Default: `"$TEMP/cargo-update"`
63    pub temp_dir: PathBuf,
64    /// Arbitrary arguments to forward to `cargo install`, acquired from `$CARGO_INSTALL_OPTS`. Default: `[]`
65    pub cargo_install_args: Vec<OsString>,
66    /// The cargo to run for installations. Default: `None` (use "cargo")
67    pub install_cargo: Option<OsString>,
68    /// `cargo install -j` argument. Default: `None`
69    pub jobs: Option<NonZero<usize>>,
70    /// Start jobserver to fill this many CPUs. Default: `None`
71    pub recursive_jobs: Option<NonZero<usize>>,
72    /// Additional limit of concurrent `cargo install`s. Default: `None`
73    pub concurrent_cargos: Option<NonZero<usize>>,
74}
75
76/// Representation of the config application's all configurable values.
77#[derive(Debug, Clone, Hash, PartialEq, Eq)]
78pub struct ConfigOptions {
79    /// The `cargo` home directory. Default: `"$CARGO_INSTALL_ROOT"`, then `"$CARGO_HOME"`, then `"$HOME/.cargo"`
80    pub cargo_dir: PathBuf,
81    /// Crate to modify config for
82    pub package: String,
83    /// What to do to the config, or display with empty
84    pub ops: Vec<ConfigOperation>,
85}
86
87
88impl Options {
89    /// Parse `env`-wide command-line arguments into an `Options` instance
90    pub fn parse() -> Options {
91        let nproc = std::thread::available_parallelism().unwrap_or(NonZero::new(1).unwrap());
92        let mut matches = Command::new("cargo")
93            .bin_name("cargo")
94            .version(crate_version!())
95            .arg_required_else_help(true)
96            .subcommand_required(true)
97            .args_override_self(true)
98            .subcommand(Command::new("install-update")
99                .version(crate_version!())
100                .author("https://github.com/nabijaczleweli/cargo-update")
101                .about("A cargo subcommand for checking and applying updates to installed executables")
102                .args(&[arg!(-c --"cargo-dir" <CARGO_DIR> "The cargo home directory. Default: $CARGO_HOME or $HOME/.cargo")
103                            .required(false)
104                            .action(ArgAction::Set)
105                            .visible_alias("root")
106                            .value_parser(ExistingDirParser("Cargo")),
107                        arg!(-t --"temp-dir" <TEMP_DIR> "The temporary directory. Default: $TEMP/cargo-update")
108                            .required(false)
109                            .action(ArgAction::Set)
110                            .value_parser(ExistingDirParser("Temporary")),
111                        arg!(-a --"all" "Update all packages").action(ArgAction::SetTrue),
112                        arg!(-l --"list" "Don't update packages, only list and check if they need an update (all packages by default)")
113                            .action(ArgAction::SetTrue),
114                        arg!(-f --"force" "Update all packages regardless if they need updating").action(ArgAction::SetTrue),
115                        arg!(-d --"downdate" "Downdate packages to match latest unyanked registry version").action(ArgAction::SetTrue),
116                        arg!(-i --"allow-no-update" "Allow for fresh-installing packages").action(ArgAction::SetTrue),
117                        arg!(-g --"git" "Also update git packages").action(ArgAction::SetTrue),
118                        arg!(-q --"quiet" "No output printed to stdout").action(ArgAction::SetTrue),
119                        arg!(--"locked" "Enforce packages' embedded Cargo.lock").action(ArgAction::SetTrue),
120                        arg!(--"cooldown" <TIME> "Only consider versions released before (now - TIME). Seconds, [smhdwy] suffix.")
121                            .required(false)
122                            .action(ArgAction::Set)
123                            .num_args(1)
124                            .value_parser(duration_parse),
125                        arg!(-s --"filter" <PACKAGE_FILTER>... "Specify a filter a package must match to be considered")
126                            .required(false)
127                            .action(ArgAction::Append)
128                            .num_args(1)
129                            .value_parser(PackageFilterElement::parse),
130                        arg!(-r --"install-cargo" <EXECUTABLE> "Specify an alternative cargo to run for installations")
131                            .required(false)
132                            .action(ArgAction::Set)
133                            .num_args(1)
134                            .value_parser(ValueParser::os_string()),
135                        arg!(-j --"jobs" <JOBS>)
136                            .help(format!("Limit number of parallel jobs or \"default\" for {}", nproc))
137                            .required(false)
138                            .num_args(1)
139                            .value_parser(JobsParser("default", nproc)),
140                        arg!(-J --"recursive-jobs" <JOBS>)
141                            .help(format!("Build up to JOBS crates at once on up to JOBS CPUs. {} if empty.", nproc))
142                            .required(false)
143                            .num_args(1)
144                            .default_value("")
145                            .value_parser(JobsParser("", nproc)),
146                        Arg::new("cargo_install_opts")
147                            .long("__cargo_install_opts")
148                            .env("CARGO_INSTALL_OPTS")
149                            .action(ArgAction::Set)
150                            .value_parser(ValueParser::os_string())
151                            .value_delimiter(' ')
152                            .hide(true),
153                        arg!(<PACKAGE>... "Packages to update")
154                            .action(ArgAction::Append)
155                            .required(false)
156                            .value_parser(package_parse)]))
157            .get_matches_mut();
158        let (_, mut matches) = matches.remove_subcommand().unwrap();
159
160        let all = matches.remove_one("all").unwrap_or(false);
161        let update = !matches.remove_one("list").unwrap_or(false);
162        let jobs_arg = matches.remove_one("jobs");
163        let recursive_jobs = matches.remove_one("recursive-jobs");
164        Options {
165            to_update: match (all || !update, matches.remove_many::<(String, Option<Semver>, Option<String>)>("PACKAGE")) {
166                (_, Some(pkgs)) => {
167                    let mut packages: Vec<_> = pkgs.map(|(package, version, registry)| {
168                            (package, version, registry.map(Cow::from).unwrap_or("https://github.com/rust-lang/crates.io-index".into()))
169                        })
170                        .collect();
171                    packages.sort_by(|l, r| l.0.cmp(&r.0));
172                    packages.dedup_by(|l, r| l.0 == r.0);
173                    packages
174                }
175                (true, None) => vec![],
176                (false, None) => clerror(format_args!("Need at least one PACKAGE without --all")),
177            },
178            all: all,
179            update: update,
180            install: matches.remove_one("allow-no-update").unwrap_or(false),
181            force: matches.remove_one("force").unwrap_or(false),
182            downdate: matches.remove_one("downdate").unwrap_or(false),
183            update_git: matches.remove_one("git").unwrap_or(false),
184            quiet: matches.remove_one("quiet").unwrap_or(false),
185            released_after: matches.get_one::<TimeDelta>("cooldown")
186                .map(|&td| {
187                    Utc::now().checked_sub_signed(td).unwrap_or_else(|| {
188                        let raw = matches.get_raw("cooldown").unwrap_or_default().last().unwrap();
189                        clerror(format_args!("--cooldown {}: (now - {}) out of range", Path::new(raw).display(), td)) // TODO: MSRV 1.87 OsStr::display()
190                    })
191                }),
192            locked: matches.remove_one("locked").unwrap_or(false),
193            filter: matches.remove_many("filter").into_iter().flatten().collect(),
194            cargo_dir: cargo_dir(matches.remove_one("cargo-dir")),
195            temp_dir: matches.remove_one("temp-dir").unwrap_or_else(env::temp_dir).join(Path::new("cargo-update").with_extension(username_os())),
196            cargo_install_args: matches.remove_many("cargo_install_opts").into_iter().flatten().filter(|a: &OsString| !a.is_empty()).collect(),
197            install_cargo: matches.remove_one("install-cargo"),
198            jobs: if recursive_jobs.is_some() {
199                None
200            } else {
201                jobs_arg
202            },
203            recursive_jobs: recursive_jobs,
204            concurrent_cargos: match (jobs_arg, recursive_jobs) {
205                (Some(j), Some(rj)) => Some(NonZero::new((rj.get() + (j.get() - 1)) / j).unwrap_or(NonZero::new(1).unwrap())),
206                _ => None,
207            },
208        }
209    }
210}
211
212impl ConfigOptions {
213    /// Parse `env`-wide command-line arguments into a `ConfigOptions` instance
214    pub fn parse() -> ConfigOptions {
215        let mut matches = Command::new("cargo")
216            .bin_name("cargo")
217            .version(crate_version!())
218            // .settings(&[ /* AppSettings::GlobalVersion*/ ])
219            .arg_required_else_help(true)
220            .subcommand_required(true)
221            .subcommand(Command::new("install-update-config")
222                .disable_version_flag(true)
223                .version(crate_version!())
224                .author("https://github.com/nabijaczleweli/cargo-update")
225                .about("A cargo subcommand for checking and applying updates to installed executables -- configuration")
226                .args(&[arg!(-c --"cargo-dir" <CARGO_DIR> "The cargo home directory. Default: $CARGO_HOME or $HOME/.cargo").required(false)
227                            .value_parser(ExistingDirParser("Cargo")),
228                        arg!(-t --"toolchain" <TOOLCHAIN> "Toolchain to use or empty for default")
229                        .num_args(1).required(false).value_parser(ValueParser::string()),
230                        arg!(-f --"feature" <FEATURE>... "Feature to enable").num_args(1).required(false).value_parser(ValueParser::string()),
231                        arg!(-n --"no-feature" <DISABLED_FEATURE>... "Feature to disable").num_args(1).required(false).value_parser(ValueParser::string()),
232                        arg!(-d --"default-features" <DEFAULT_FEATURES> "Whether to allow default features").num_args(1).required(false)
233                            .value_parser(DefaultFeaturesBoolParser)
234                            .hide_possible_values(true),
235                        arg!(--"debug" "Compile the package in debug (\"dev\") mode")
236                        .action(ArgAction::SetTrue).conflicts_with("release").conflicts_with("build-profile"),
237                        arg!(--"release" "Compile the package in release mode")
238                        .action(ArgAction::SetTrue).conflicts_with("debug").conflicts_with("build-profile"),
239                        arg!(--"build-profile" <PROFILE> "Compile the package in the given profile").num_args(1).required(false)
240                            .conflicts_with("debug")
241                            .conflicts_with("release").value_parser(ValueParser::string()),
242                        arg!(--"install-prereleases" "Install prerelease versions").action(ArgAction::SetTrue).conflicts_with("no-install-prereleases"),
243                        arg!(--"no-install-prereleases" "Filter out prerelease versions").action(ArgAction::SetTrue).conflicts_with("install-prereleases"),
244                        arg!(--"enforce-lock" "Require Cargo.lock to be up to date").action(ArgAction::SetTrue).conflicts_with("no-enforce-lock"),
245                        arg!(--"no-enforce-lock" "Don't enforce Cargo.lock").action(ArgAction::SetTrue).conflicts_with("enforce-lock"),
246                        arg!(--"respect-binaries" "Only install already installed binaries").action(ArgAction::SetTrue).conflicts_with("no-respect-binaries"),
247                        arg!(--"no-respect-binaries" "Install all binaries").action(ArgAction::SetTrue).conflicts_with("respect-binaries"),
248                        arg!(-v --"version" <VERSION_REQ> "Require a cargo-compatible version range").num_args(1).required(false)
249                            .value_parser(SemverReq::from_str)
250                            .conflicts_with("any-version"),
251                        arg!(-a --"any-version" "Allow any version").action(ArgAction::SetTrue).conflicts_with("version"),
252                        arg!(-e --"environment" <VARIABLE_EQ_TODO_VALUE>... "Environment variable to set").required(false)
253                            .num_args(1)
254                            .value_parser(|s: &str| if let Some((k,v)) = s.split_once('=') {
255                                Ok((k.to_string(), v.to_string()))
256                            } else {
257                                Err("Missing VALUE")
258                            }),
259                        arg!(-E --"clear-environment" <VARIABLE>... "Environment variable to clear").required(false)
260                            .num_args(1)
261                            .value_parser(|s: &str| if s.contains('=') {
262                                Err("VARIABLE can't contain a =")
263                            } else {
264                                Ok(s.to_string())
265                            }),
266                        arg!(--"inherit-environment" <VARIABLE>... "Environment variable to use from the environment").required(false)
267                            .num_args(1)
268                            .value_parser(|s: &str| if s.contains('=') {
269                                Err("VARIABLE can't contain a =")
270                            } else {
271                                Ok(s.to_string())
272                            }),
273                        arg!(-r --"reset" "Roll back the configuration to the defaults.").action(ArgAction::SetTrue),
274                        arg!(<PACKAGE> "Package to configure").value_parser(NonEmptyStringValueParser ::new())
275                        ]))
276            .get_matches_mut();
277        let (_, mut matches) = matches.remove_subcommand().unwrap();
278
279        ConfigOptions {
280            cargo_dir: cargo_dir(matches.get_one("cargo-dir")).1,
281            package: matches.remove_one("PACKAGE").unwrap(),
282            ops: matches.remove_one("toolchain")
283                .map(|t: String| if t.is_empty() {
284                    ConfigOperation::RemoveToolchain
285                } else {
286                    ConfigOperation::SetToolchain(t)
287                })
288                .into_iter()
289                .chain(matches.remove_many("feature").into_iter().flatten().map(ConfigOperation::AddFeature))
290                .chain(matches.remove_many("no-feature").into_iter().flatten().map(ConfigOperation::RemoveFeature))
291                .chain(matches.remove_one("default-features").map(ConfigOperation::DefaultFeatures))
292                .chain(match (matches.remove_one("debug").unwrap_or(false),
293                              matches.remove_one("release").unwrap_or(false),
294                              matches.remove_one::<String>("build-profile")) {
295                    (true, _, _) => Some(ConfigOperation::SetBuildProfile("dev".into())),
296                    (_, true, _) => Some(ConfigOperation::SetBuildProfile("release".into())),
297                    (_, _, Some(prof)) => Some(ConfigOperation::SetBuildProfile(prof.into())),
298                    _ => None,
299                })
300                .chain(match (matches.remove_one("install-prereleases").unwrap_or(false), matches.remove_one("no-install-prereleases").unwrap_or(false)) {
301                    (true, _) => Some(ConfigOperation::SetInstallPrereleases(true)),
302                    (_, true) => Some(ConfigOperation::SetInstallPrereleases(false)),
303                    _ => None,
304                })
305                .chain(match (matches.remove_one("enforce-lock").unwrap_or(false), matches.remove_one("no-enforce-lock").unwrap_or(false)) {
306                    (true, _) => Some(ConfigOperation::SetEnforceLock(true)),
307                    (_, true) => Some(ConfigOperation::SetEnforceLock(false)),
308                    _ => None,
309                })
310                .chain(match (matches.remove_one("respect-binaries").unwrap_or(false), matches.remove_one("no-respect-binaries").unwrap_or(false)) {
311                    (true, _) => Some(ConfigOperation::SetRespectBinaries(true)),
312                    (_, true) => Some(ConfigOperation::SetRespectBinaries(false)),
313                    _ => None,
314                })
315                .chain(match (matches.remove_one("any-version").unwrap_or(false), matches.remove_one("version")) {
316                    (true, _) => Some(ConfigOperation::RemoveTargetVersion),
317                    (false, Some(vr)) => Some(ConfigOperation::SetTargetVersion(vr)),
318                    _ => None,
319                })
320                .chain(matches.remove_many("environment")
321                    .into_iter()
322                    .flatten()
323                    .map(|(k, v)| ConfigOperation::SetEnvironment(k, v)))
324                .chain(matches.remove_many("clear-environment").into_iter().flatten().map(ConfigOperation::ClearEnvironment))
325                .chain(matches.remove_many("inherit-environment").into_iter().flatten().map(ConfigOperation::InheritEnvironment))
326                .chain(if matches.remove_one("reset").unwrap_or(false) {
327                    Some(ConfigOperation::ResetConfig)
328                } else {
329                    None
330                })
331                .collect(),
332        }
333    }
334}
335
336fn cargo_dir(opt_cargo_dir: Option<&PathBuf>) -> (PathBuf, PathBuf) {
337    if let Some(dir) = opt_cargo_dir {
338        match fs::canonicalize(&dir) {
339            Ok(cdir) => (dir.into(), cdir),
340            Err(_) => clerror(format_args!("--cargo-dir={:?} doesn't exist", dir)),
341        }
342    } else {
343        match env::var_os("CARGO_INSTALL_ROOT")
344            .map(PathBuf::from)
345            .or_else(|| home::cargo_home().ok())
346            .and_then(|ch| fs::canonicalize(&ch).map(|can| (ch, can)).ok()) {
347            Some(cd) => cd,
348            None => {
349                clerror(format_args!("$CARGO_INSTALL_ROOT, $CARGO_HOME, and home directory invalid, please specify the cargo home directory with the -c \
350                                      option"))
351            }
352        }
353    }
354}
355
356#[derive(Copy, Clone)]
357struct ExistingDirParser(&'static str);
358impl TypedValueParser for ExistingDirParser {
359    type Value = PathBuf;
360
361    fn parse_ref(&self, cmd: &Command, arg: Option<&Arg>, value: &OsStr) -> Result<Self::Value, ClapError> {
362        fs::canonicalize(value).map_err(|_| {
363            ClapError::raw(ClapErrorKind::InvalidValue,
364                           format_args!("{}: {} directory \"{}\" not found", arg.unwrap(), self.0, Path::new(value).display())) // TODO: MSRV 1.87 OsStr::display()
365                .with_cmd(cmd)
366        })
367    }
368}
369
370fn package_parse(mut s: &str) -> Result<(String, Option<Semver>, Option<String>), String> {
371    let mut registry_url = None;
372    if s.starts_with('(') {
373        if let Some(idx) = s.find("):") {
374            registry_url = Some(&s[1..idx]);
375            s = &s[idx + 2..];
376        }
377    }
378
379    if let Some(idx) = s.find(':') {
380        Ok((s[0..idx].to_string(),
381            Some(Semver::parse(&s[idx + 1..]).map_err(|e| format!("Version {} provided for package {} invalid: {}", &s[idx + 1..], &s[0..idx], e))?),
382            registry_url.map(str::to_string)))
383    } else {
384        Ok((s.to_string(), None, registry_url.map(str::to_string)))
385    }
386}
387
388fn duration_parse(s: &str) -> Result<TimeDelta, String> {
389    const MULS_S: [char; 6] = ['y', 'w', 'd', 'h', 'm', 's'];
390    const MULS_V: [f64; 6] = [365.25 / 7., 7., 24., 60., 60., 1.];
391    let (base, mul) = s.strip_suffix(MULS_S).map(|stripped| (stripped, *s.as_bytes().last().unwrap() as _)).unwrap_or((s, 's'));
392    let base = f64::from_str(base).map_err(|e| e.to_string())?;
393    let val = MULS_V[MULS_S.iter().position(|&c| c == mul).unwrap()..].iter().fold(base, |a, e| a * e);
394    let (s, ns) = (val.trunc() as i64, (val.fract() * 1_000_000_000.0) as u32);
395    TimeDelta::new(s, ns).ok_or_else(|| format!("{}.{:09} too big", s, ns))
396}
397
398#[derive(Copy, Clone)]
399struct JobsParser(&'static str, NonZero<usize>);
400impl TypedValueParser for JobsParser {
401    type Value = NonZero<usize>;
402    fn parse_ref(&self, cmd: &Command, arg: Option<&Arg>, value: &OsStr) -> Result<Self::Value, ClapError> {
403        let value = value.to_str().ok_or(ClapError::new(ClapErrorKind::InvalidValue).with_cmd(cmd))?;
404        let Self(special, default) = *self;
405
406        if value != special {
407            if value.starts_with("-") {
408                    NonZero::from_str(&value[1..]).map(|sub| if sub >= default {
409                        NonZero::new(1).unwrap()
410                    } else {
411                        NonZero::new(default.get() - sub.get()).unwrap()
412                    })
413                } else {
414                    NonZero::from_str(value)
415                }
416                .map_err(|e| ClapError::raw(ClapErrorKind::InvalidValue, format_args!("{}: {}", arg.unwrap(), e)).with_cmd(cmd))
417        } else {
418            Ok(default)
419        }
420    }
421}
422
423#[derive(Copy, Clone)]
424struct DefaultFeaturesBoolParser;
425impl TypedValueParser for DefaultFeaturesBoolParser {
426    type Value = bool;
427
428    fn parse_ref(&self, cmd: &Command, arg: Option<&Arg>, value: &OsStr) -> Result<Self::Value, ClapError> {
429        match value.to_str().ok_or(ClapError::new(ClapErrorKind::InvalidValue).with_cmd(cmd))? {
430            "1" | "yes" | "true" => Ok(true),
431            "0" | "no" | "false" => Ok(false),
432            value => {
433                Err(ClapError::raw(ClapErrorKind::InvalidValue,
434                                   format_args!("{}: {} not 1|yes|true or 0|no|false", arg.unwrap(), value))
435                    .with_cmd(cmd))
436            }
437        }
438    }
439
440    fn possible_values(&self) -> Option<Box<dyn Iterator<Item = PossibleValue> + '_>> {
441        Some(Box::new(["1", "yes", "true", "0", "no", "false"].iter().map(PossibleValue::new)))
442    }
443}
444
445
446fn clerror(f: Arguments) -> ! {
447    eprintln!("{}", f);
448    exit(1)
449}
cargo_update/options.rs

cargo_update/
options.rs
