libps_mem/conf/
parse.rs

1//
2use flood_tide::parse_simple_gnu_style;
3use flood_tide::HelpVersion;
4use flood_tide::{Arg, NameVal, Opt, OptNum};
5use flood_tide::{OptParseError, OptParseErrors};
6
7use crate::util::OptSortOrder;
8use crate::util::OptUcXParam;
9use std::str::FromStr;
10
11//----------------------------------------------------------------------
12include!("cmd.help.rs.txt");
13
14//{{{ TEXT
15const DESCRIPTIONS_TEXT: &str = r#"print processes memory by sort,
16or print one processe memory
17"#;
18//const PARAMS_TEXT: &str = r#""#;
19//const ARGUMENTS_TEXT: &str = r#""#;
20//const ENV_TEXT: &str = r#""#;
21const EXAMPLES_TEXT: &str = r#"Examples:
22  Show all prosesses memory:
23    ps-mem --all
24  Show one prosess memory:
25    ps-mem --pid 1234
26  Show invoked one prosess memory:
27    ps-mem -- find / -type f
28"#;
29//}}} TEXT
30
31//----------------------------------------------------------------------
32#[rustfmt::skip]
33fn version_message(_program: &str) -> String {
34    format!( "{} {}",
35        env!("CARGO_PKG_NAME"), env!("CARGO_PKG_VERSION"))
36}
37
38#[rustfmt::skip]
39fn usage_message(program: &str) -> String {
40    let usage1 = format!("  {} {}", program, "[options]");
41    let usage2 = format!(
42        "  {} {}",
43        program, "[options] <command> {<arg1> <arg2> ...}"
44    );
45    format!("Usage:\n{usage1}\n{usage2}\n")
46}
47
48#[rustfmt::skip]
49fn help_message(program: &str) -> String {
50    let ver = version_message(program);
51    let usa = usage_message(env!("CARGO_PKG_NAME"));
52    [ &ver, "", &usa, DESCRIPTIONS_TEXT, OPTIONS_TEXT, EXAMPLES_TEXT].join("\n")
53}
54
55#[rustfmt::skip]
56fn opt_uc_x_help_message(_program: &str) -> String {
57    let z_opts = concat!(
58        "Options:\n",
59        "  -X rust-version-info     display package version info and exit\n",
60        "  -X base_dir=<path>       set <path> is base directory\n",
61    );
62    z_opts.to_string()
63}
64
65#[rustfmt::skip]
66fn opt_uc_x_package_version_info(_program: &str) -> String {
67    #[cfg(feature = "debian_build")]
68    {
69        use std::io::Read;
70        let mut string = String::new();
71        let fnm = format!("/usr/share/doc/{}/rust-version-info.txt", env!("CARGO_PKG_NAME"));
72        let file = std::fs::File::open(&fnm);
73        match file {
74            Ok(mut f) => {
75                f.read_to_string(&mut string).unwrap();
76                string
77            },
78            Err(err) => {
79                format!("ERROR: {}: '{}'", err, fnm)
80            },
81        }
82    }
83    #[cfg(not(feature = "debian_build"))]
84    {
85        const VS: &str = include_str!(concat!(env!("OUT_DIR"), "/rust-version-info.txt"));
86        VS.to_string()
87    }
88}
89
90//----------------------------------------------------------------------
91fn parse_match(conf: &mut CmdOptConf, nv: &NameVal<'_>) -> Result<(), OptParseError> {
92    include!("cmd.match.rs.txt");
93    Ok(())
94}
95
96pub fn parse_cmdopts(a_prog_name: &str, args: &[&str]) -> Result<CmdOptConf, OptParseErrors> {
97    //
98    let mut conf = CmdOptConf {
99        prog_name: a_prog_name.to_string(),
100        opt_sleep: 10,
101        ..Default::default()
102    };
103    let (opt_free, r_errs) =
104        parse_simple_gnu_style(&mut conf, &OPT_ARY, &OPT_ARY_SHO_IDX, args, parse_match);
105    //
106    if conf.is_help() {
107        let mut errs = OptParseErrors::new();
108        errs.push(OptParseError::help_message(&help_message(&conf.prog_name)));
109        return Err(errs);
110    }
111    if conf.is_version() {
112        let mut errs = OptParseErrors::new();
113        errs.push(OptParseError::version_message(&version_message(
114            &conf.prog_name,
115        )));
116        return Err(errs);
117    }
118    if !conf.opt_uc_x.is_empty() {
119        if conf.is_opt_uc_x_help() {
120            let mut errs = OptParseErrors::new();
121            errs.push(OptParseError::help_message(&opt_uc_x_help_message(
122                &conf.prog_name,
123            )));
124            return Err(errs);
125        }
126        if conf.is_opt_uc_x_package_version_info() {
127            let mut errs = OptParseErrors::new();
128            errs.push(OptParseError::help_message(&opt_uc_x_package_version_info(
129                &conf.prog_name,
130            )));
131            return Err(errs);
132        }
133    }
134    //
135    {
136        let errs = if let Err(errs) = r_errs {
137            errs
138        } else {
139            OptParseErrors::new()
140        };
141        //
142        if let Some(free) = opt_free {
143            if !free.is_empty() {
144                conf.arg_params.extend(free.iter().map(|s| s.to_string()));
145            }
146        };
147        if !errs.is_empty() {
148            return Err(errs);
149        }
150    }
151    //
152    Ok(conf)
153}
libps_mem/conf/parse.rs

libps_mem/conf/
parse.rs
