ravenlib 1.2.4

Library for raven theme manager
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201

//! # ravenlib
//! This powers [raven](https://git.sr.ht/~nicohman/raven), and provides an API for managing raven themes. Check raven for reasonably good example code.
#[macro_use]
extern crate serde_json;
#[macro_use]
extern crate serde_derive;
extern crate dirs;
extern crate multipart;
extern crate reqwest;
extern crate tar;
#[macro_use]
extern crate error_chain;
#[macro_use]
extern crate log;
pub mod error;
/// Interactions with online instances of ThemeHub
pub mod ravenserver;
use std::fs::DirEntry;
/// Module for theme manipulation
pub mod themes;
/// Config module
pub mod config {
    use crate::themes::*;
    use dirs::home_dir;
    use error::*;
    use serde_json::value::Map;
    use std::{fs, fs::OpenOptions, io::Read, io::Write};
    /// Returns home directory as string
    pub fn get_home() -> String {
        return String::from(home_dir().unwrap().to_str().unwrap());
    }
    /// Default ravenserver host
    pub fn default_host() -> String {
        String::from("https://demenses.net")
    }
    /// Default screenshot url
    pub fn default_screen() -> String {
        String::new()
    }
    /// Default raven theme description
    pub fn default_desc() -> String {
        String::from("A raven theme.")
    }
    /// Config structure for holding all main config options
    #[derive(Serialize, Deserialize, Debug)]
    pub struct Config {
        pub monitors: i32,
        pub polybar: Vec<String>,
        pub menu_command: String,
        pub last: String,
        pub editing: String,
        #[serde(default = "default_host")]
        pub host: String,
    }
    impl Config {
        /// Default method for config file
        pub fn default() -> Config {
            Config {
                monitors: 1,
                polybar: vec!["main".to_string(), "other".to_string()],
                menu_command: "rofi -theme sidebar -mesg 'raven:' -p '> ' -dmenu".to_string(),
                last: "".to_string(),
                editing: "".to_string(),
                host: default_host(),
            }
        }
    }
    /// Check to see if there are themes still using the old format, and convert them if so.
    pub fn check_themes() -> Result<()> {
        let entries = get_themes()?;
        for entry in entries {
            info!("Checking theme {}", entry);
            if fs::metadata(get_home() + "/.config/raven/themes/" + &entry + "/theme").is_ok() {
                convert_theme(entry)?;
            }
        }
        Ok(())
    }
    /// Create base raven directories and config file(s)
    pub fn init() -> Result<()> {
        if fs::metadata(get_home() + "/.config/raven/config").is_err() {
            fs::create_dir(get_home() + "/.config/raven")?;
            fs::create_dir(get_home() + "/.config/raven/themes")?;
        } else {
            error!(
                    "The config file format has changed. Please check ~/.config/raven/config.json to reconfigure raven."
                );
        }
        info!("Creating config file");
        let mut file = OpenOptions::new()
            .create(true)
            .write(true)
            .open(get_home() + "/.config/raven/config.json")?;
        let default = serde_json::to_string(&Config::default())?;
        info!("Writing default config to file");
        file.write_all(default.as_bytes())?;
        info!("Correctly initialized base config and directory structure.");
        Ok(())
    }
    /// Checks to see if base config/directories need to be initialized
    pub fn check_init() -> bool {
        fs::metadata(get_home() + "/.config/raven").is_err()
            || fs::metadata(get_home() + "/.config/raven/config.json").is_err()
            || fs::metadata(get_home() + "/.config/raven/themes").is_err()
    }
    /// Updates and replaces the stored config with a new config
    pub fn up_config(conf: Config) -> Result<Config> {
        info!("Opening and writing to temp config file");
        OpenOptions::new()
            .create(true)
            .write(true)
            .open(get_home() + "/.config/raven/~config.json")?
            .write_all(serde_json::to_string(&conf)?.as_bytes())?;
        info!("Copying temp file to config file");
        fs::copy(
            get_home() + "/.config/raven/~config.json",
            get_home() + "/.config/raven/config.json",
        )?;
        info!("Removing temp file");
        fs::remove_file(get_home() + "/.config/raven/~config.json")?;
        Ok(conf)
    }
    /// Converts a theme from the old pipe-delineated format to the new json format
    pub fn convert_theme<N>(theme_name: N) -> Result<ThemeStore>
    where
        N: Into<String>,
    {
        let theme_name = theme_name.into();
        let mut theme = String::new();
        let otp = get_home() + "/.config/raven/themes/" + &theme_name + "/theme";
        fs::File::open(&otp)
            .expect("Couldn't read theme")
            .read_to_string(&mut theme)?;
        let options = theme
            .split('|')
            .map(|x| String::from(String::from(x).trim()))
            .filter(|x| x.len() > 0)
            .filter(|x| x != "|")
            .collect::<Vec<String>>();
        fs::remove_file(otp)?;
        let themes = ThemeStore {
            name: theme_name.clone(),
            enabled: Vec::new(),
            options: options.iter().map(|x| x.to_string()).collect(),
            screenshot: default_screen(),
            description: default_desc(),
            kv: Map::new(),
        };
        OpenOptions::new()
            .create(true)
            .write(true)
            .open(get_home() + "/.config/raven/themes/" + &theme_name + "/theme.json")?
            .write_all(serde_json::to_string(&themes)?.as_bytes())?;
        Ok(themes)
    }
    /// Retrieve config settings from file
    pub fn get_config() -> Result<Config> {
        let mut conf = String::new();
        info!("Opening and reading config file");
        fs::File::open(get_home() + "/.config/raven/config.json")?.read_to_string(&mut conf)?;
        info!("Parsing config file");
        Ok(serde_json::from_str(&conf)?)
    }
}
/// Ravend control
pub mod daemon {
    use error::*;
    use std::process::Child;
    use std::process::Command;
    /// Starts ravend
    pub fn start_daemon() -> Result<Child> {
        info!("Starting ravend");
        let child = Command::new("sh").arg("-c").arg("ravend").spawn()?;
        info!("Started cycle daemon.");
        Ok(child)
    }
    /// Stops ravend
    pub fn stop_daemon() -> Result<()> {
        info!("Starting pkill command");
        Command::new("pkill")
            .arg("-SIGKILL")
            .arg("ravend")
            .output()?;
        info!("Stopped cycle daemon.");
        Ok(())
    }
    /// Checks if the ravend daemon is running
    pub fn check_daemon() -> Result<bool> {
        info!("Starting ps command");
        let out = Command::new("ps").arg("aux").output()?;
        let form_out = String::from_utf8_lossy(&out.stdout);
        let line_num = form_out.lines().filter(|x| x.contains("ravend")).count();
        Ok(line_num > 0)
    }

}

/// Converts DirEntry into a fully processed file/directory name
pub fn proc_path(path: DirEntry) -> String {
    path.file_name().into_string().unwrap()
}