hyper-scripter 0.3.3

The script managing tool for script lovers
Documentation
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use chrono::Utc;
use hyper_scripter::args::{self, print_help, List, Root, Subs};
use hyper_scripter::config::{Config, NamedTagFilter};
use hyper_scripter::error::{Contextable, Error, Result};
use hyper_scripter::extract_help::extract_help;
use hyper_scripter::list::{fmt_list, DisplayIdentStyle, DisplayStyle, ListOptions};
use hyper_scripter::query::{self, EditQuery, ScriptQuery};
use hyper_scripter::script::{IntoScriptName, ScriptInfo, ScriptName};
use hyper_scripter::script_repo::{ScriptRepo, ScriptRepoEntry};
use hyper_scripter::script_type::ScriptType;
use hyper_scripter::tag::{Tag, TagControlFlow, TagFilter, TagFilterGroup};
use hyper_scripter::Either;
use hyper_scripter::{path, util};
use hyper_scripter_historian::{Event, EventData};
use std::path::PathBuf;
use std::str::FromStr;

struct EditTagArgs {
    content: TagControlFlow,
    change_existing: bool,
    append_namespace: bool,
}

#[tokio::main]
async fn main() {
    env_logger::init();
    let errs = match main_err_handle().await {
        Err(e) => vec![e],
        Ok(v) => v,
    };
    for err in errs.iter() {
        eprint!("{}", err);
    }
    if errs.len() > 0 {
        std::process::exit(1);
    }
}
async fn main_err_handle() -> Result<Vec<Error>> {
    let root = args::handle_args()?;
    let mut conf = Config::get()?.clone();
    let res = main_inner(root, &mut conf).await?;
    conf.store()?;
    Ok(res)
}
async fn main_inner(root: Root, conf: &mut Config) -> Result<Vec<Error>> {
    let pool = hyper_scripter::db::get_pool().await?;
    let recent = if root.timeless {
        None
    } else {
        root.recent.or(conf.recent)
    };
    let mut repo = ScriptRepo::new(pool.clone(), recent)
        .await
        .context("讀取歷史記錄失敗")?;
    let historian = repo.historian().clone();
    let mut res = Vec::<Error>::new();
    {
        let tag_group: TagFilterGroup = if root.all {
            TagFilter::from_str("all,^removed").unwrap().into()
        } else {
            let mut group = conf.get_tag_filter_group(); // TODO: TagFilterGroup 可以多帶點 lifetime 減少複製
            if let Some(flow) = root.filter.clone() {
                group.push(flow.into());
            }
            group
        };
        repo.filter_by_tag(&tag_group);
    }

    match root.subcmd.unwrap() {
        Subs::LoadUtils => {
            let utils = hyper_scripter_util::get_all();
            for u in utils.into_iter() {
                log::info!("載入小工具 {}", u.name);
                let name = u.name.to_owned().into_script_name()?;
                if repo.get_mut(&name, true).is_some() {
                    log::warn!("已存在的小工具 {:?},跳過", name);
                    continue;
                }
                let ty = ScriptType::from_str(u.category)?;
                let tags: Vec<Tag> = if u.is_hidden {
                    vec![
                        Tag::from_str("util").unwrap(),
                        Tag::from_str("hide").unwrap(),
                    ]
                } else {
                    vec![Tag::from_str("util").unwrap()]
                };
                let p = path::open_script(&name, &ty, Some(false))?;
                let entry = repo
                    .entry(&name)
                    .or_insert(ScriptInfo::builder(0, name, ty, tags.into_iter()).build())
                    .await?;
                util::prepare_script(&p, *entry, true, Some(u.content))?;
            }
        }
        Subs::Alias {
            unset: false,
            before: Some(before),
            after,
        } => {
            if after.len() > 0 {
                log::info!("設定別名 {} {:?}", before, after);
                conf.alias.insert(before, after.into());
            } else {
                log::info!("印出別名 {}", before);
                let after = conf
                    .alias
                    .get(&before)
                    .ok_or(Error::NoAlias(before.clone()))?
                    .after
                    .join(" ");
                println!("{}=\"{}\"", before, after);
            }
        }
        Subs::Alias {
            unset: true,
            before: Some(before),
            ..
        } => {
            log::info!("取消別名 {}", before);
            let ok = conf.alias.remove(&before).is_some();
            if !ok {
                return Err(Error::NoAlias(before));
            }
        }
        Subs::Alias {
            unset: false,
            before: None,
            ..
        } => {
            log::info!("印出所有別名");
            for (before, alias) in conf.alias.iter() {
                let after = alias.after.join(" ");
                println!("{}=\"{}\"", before, after);
            }
        }
        Subs::Edit {
            edit_query,
            category: ty,
            fast,
            tags,
            content,
            no_template,
        } => {
            // TODO: 這裡邏輯太複雜了,抽出來測試吧
            let edit_tags = {
                // TODO: 不要這麼愛 clone
                let mut innate_tags = match root.filter {
                    None => conf.main_tag_filter.clone().filter,
                    Some(tags) => {
                        let mut main_tags = conf.main_tag_filter.clone().filter;
                        main_tags.push(tags);
                        main_tags
                    }
                };
                if let Some(tags) = tags {
                    let append_namespace = tags.append;
                    innate_tags.push(tags);
                    EditTagArgs {
                        change_existing: true,
                        content: innate_tags,
                        append_namespace,
                    }
                } else {
                    EditTagArgs {
                        change_existing: false,
                        append_namespace: true,
                        content: innate_tags,
                    }
                }
            };
            let (path, mut entry) = edit_or_create(edit_query, &mut repo, ty, edit_tags).await?;
            if content.is_some() {
                log::info!("帶內容編輯 {:?}", entry.name);
                if path.exists() {
                    log::error!("不允許帶內容編輯已存在的腳本");
                    return Err(Error::ScriptExist(entry.name.to_string()));
                }
            }
            let content = content.as_ref().map(|s| s.as_str());
            let created = util::prepare_script(&path, &*entry, no_template, content)?;
            if !fast {
                let cmd = util::create_cmd("vim", &[&path]);
                let stat = util::run_cmd("vim", cmd)?;
                log::debug!("編輯器返回:{:?}", stat);
            }
            let exist = util::after_script(&path, created)?;
            if exist {
                entry.update(|info| info.write()).await?;
            } else {
                let name = entry.name.clone();
                repo.remove(&name).await?
            }
        }
        Subs::Help { args } => {
            print_help(args.iter())?;
            let script_query: ScriptQuery = FromStr::from_str(&args[0])?;
            let entry =
                query::do_script_query_strict_with_missing(&script_query, &mut repo).await?;
            log::info!("檢視用法: {:?}", entry.name);
            let script_path = path::open_script(&entry.name, &entry.ty, Some(true))?;
            let content = util::read_file(&script_path)?;
            for msg in extract_help(&content, true) {
                println!("{}", msg);
            }
        }
        Subs::Run { script_query, args } => {
            let mut entry =
                query::do_script_query_strict_with_missing(&script_query, &mut repo).await?;
            log::info!("執行 {:?}", entry.name);
            {
                let exe = std::env::current_exe()?;
                let exe = exe.to_string_lossy();
                log::debug!("將 hs 執行檔的確切位置 {} 記錄起來", exe);
                util::write_file(&path::get_home().join(path::HS_EXECUTABLE_INFO_PATH), &exe)?;
            }
            let script_path = path::open_script(&entry.name, &entry.ty, Some(true))?;
            let content = util::read_file(&script_path)?;
            entry.update(|info| info.exec(content)).await?;
            let ret_code: i32;
            let run_res = util::run(
                &script_path,
                &*entry,
                &args,
                entry.exec_time.as_ref().unwrap().data().unwrap(),
            );
            match run_res {
                Err(Error::ScriptError(code)) => {
                    ret_code = code;
                    res.push(run_res.unwrap_err());
                }
                Err(e) => return Err(e),
                Ok(_) => ret_code = 0,
            }
            let res = historian
                .record(Event {
                    data: EventData::ExecDone(ret_code),
                    script_id: entry.id,
                })
                .await;
            match &res {
                Ok(_) => (),
                Err(sqlx::error::Error::Database(err)) => {
                    if err.code().as_ref().map(|s| s.as_ref()) == Some("517") {
                        log::warn!("資料庫最後被鎖住了! {:?}", err);
                    } else {
                        res?;
                    }
                }
                Err(_) => res?,
            }
        }
        Subs::Which { script_query } => {
            let entry =
                query::do_script_query_strict_with_missing(&script_query, &mut repo).await?;
            log::info!("定位 {:?}", entry.name);
            let p = path::get_home().join(entry.file_path()?);
            println!("{}", p.to_string_lossy());
        }
        Subs::Cat { script_query } => {
            let mut entry =
                query::do_script_query_strict_with_missing(&script_query, &mut repo).await?;
            let script_path = path::open_script(&entry.name, &entry.ty, Some(true))?;
            log::info!("打印 {:?}", entry.name);
            let content = util::read_file(&script_path)?;
            print!("{}", content);
            entry.update(|info| info.read()).await?;
        }
        Subs::LS(List {
            long,
            grouping,
            queries,
            plain,
            name,
            file,
        }) => {
            let display_style = match (long, file, name) {
                (false, true, false) => DisplayStyle::Short(DisplayIdentStyle::File, ()),
                (false, false, true) => DisplayStyle::Short(DisplayIdentStyle::Name, ()),
                (false, false, false) => DisplayStyle::Short(DisplayIdentStyle::Normal, ()),
                (true, false, false) => DisplayStyle::Long(()),
                _ => unreachable!(),
            };
            let opt = ListOptions {
                grouping: grouping.into(),
                plain,
                queries: &queries,
                display_style,
            };
            let stdout = std::io::stdout();
            fmt_list(&mut stdout.lock(), &mut repo, &opt)?;
        }
        Subs::RM { queries, purge } => {
            let delete_tag: Option<TagControlFlow> = Some(FromStr::from_str("+removed").unwrap());
            let mut to_purge = vec![];
            for mut entry in query::do_list_query(&mut repo, &queries)?.into_iter() {
                log::info!("刪除 {:?}", *entry);
                if purge {
                    log::debug!("真的刪除腳本!");
                    to_purge.push((entry.name.clone(), entry.ty.clone()));
                } else {
                    let time_str = Utc::now().format("%Y%m%d%H%M%S");
                    let new_name = util::change_name_only(&entry.name.to_string(), |name| {
                        format!("{}-{}", time_str, name)
                    });
                    log::debug!("不要真的刪除腳本,改用標籤隱藏之:{}", new_name);
                    let new_name = Some(ScriptName::Named(new_name));
                    let res = mv(&mut entry, new_name, None, delete_tag.clone()).await;
                    match res {
                        Err(Error::PathNotFound(_)) => {
                            log::warn!("{:?} 實體不存在,消滅之", entry.name);
                            to_purge.push((entry.name.clone(), entry.ty.clone()));
                        }
                        Err(e) => return Err(e),
                        _ => (),
                    }
                }
            }
            for (name, ty) in to_purge.into_iter() {
                let p = path::open_script(&name, &ty, None)?;
                repo.remove(&name).await?;
                if let Err(e) = util::remove(&p) {
                    log::warn!("刪除腳本實體遭遇錯誤:{}", e);
                }
            }
        }
        Subs::CP { origin, new } => {
            // FIXME: 應該要允許 cp 成既存的名字
            let entry = query::do_script_query_strict_with_missing(&origin, &mut repo).await?;
            let og_script = path::open_script(&entry.name, &entry.ty, Some(true))?;
            let new_script = path::open_script(&new, &entry.ty, Some(false))?;
            util::cp(&og_script, &new_script)?;
            let new_info = entry.cp(new.clone());
            repo.entry(&new).or_insert(new_info).await?;
        }
        Subs::MV {
            origin,
            new,
            tags,
            category: ty,
        } => {
            let new_name = match new {
                Some(s) => Some(s.into_script_name()?),
                None => None,
            };
            let mut entry = query::do_script_query_strict_with_missing(&origin, &mut repo).await?;
            mv(&mut entry, new_name, ty, tags).await?;
        }
        Subs::Tags {
            tag_filter,
            obligation,
        } => {
            if let Some(filter) = tag_filter {
                if let Some(name) = filter.name {
                    log::debug!("處理篩選器 {:?}", name);
                    let is_empty = filter.content.is_empty();
                    let mut content = Some(filter.content);
                    let tag_filters = &mut conf.tag_filters;
                    for (i, f) in tag_filters.iter_mut().enumerate() {
                        if f.name == name {
                            if is_empty {
                                log::info!("刪除篩選器 {} {}", name, content.as_ref().unwrap());
                                tag_filters.remove(i);
                            } else {
                                log::info!("修改篩選器 {} {}", name, content.as_ref().unwrap());
                                f.obligation = obligation;
                                f.filter = content.take().unwrap();
                            }
                            break;
                        }
                    }
                    if let Some(content) = content {
                        if !is_empty {
                            log::info!("新增篩選器 {} {}", name, content);
                            conf.tag_filters.push(NamedTagFilter {
                                filter: content,
                                obligation,
                                name,
                            });
                        } else {
                            log::warn!("試著刪除不存在的篩選器 {:?}", name);
                        }
                    }
                } else {
                    log::info!("加入主篩選器 {:?}", filter);
                    conf.main_tag_filter = TagFilter {
                        filter: filter.content.clone(),
                        obligation,
                    };
                }
            } else {
                println!("tag filters:");
                for filter in conf.tag_filters.iter() {
                    print!("  {} = [{}]", filter.name, filter.filter);
                    if filter.obligation {
                        print!(" (obligation)")
                    }
                    println!("")
                }
                println!("main tag filter:");
                print!("  [{}]", conf.main_tag_filter.filter);
                if conf.main_tag_filter.obligation {
                    print!(" (obligation)")
                }
                println!("")
            }
        }
        sub @ _ => unimplemented!("{:?}", sub),
    }
    Ok(res)
}

async fn mv<'b>(
    entry: &mut ScriptRepoEntry<'b>,
    new_name: Option<ScriptName>,
    ty: Option<ScriptType>,
    tags: Option<TagControlFlow>,
) -> Result {
    // FIXME: 應該要允許 mv 成既存的名字
    let og_script = path::open_script(&entry.name, &entry.ty, Some(true))?;
    if ty.is_some() || new_name.is_some() {
        let new_script = path::open_script(
            new_name.as_ref().unwrap_or(&entry.name),
            ty.as_ref().unwrap_or(&entry.ty),
            Some(false),
        )?;
        util::mv(&og_script, &new_script)?;
    }

    entry
        .update(|info| {
            if let Some(ty) = ty {
                info.ty = ty;
            }
            if let Some(name) = new_name {
                info.name = name;
            }
            if let Some(tags) = tags {
                if tags.append {
                    log::debug!("附加上標籤:{:?}", tags);
                    info.tags.extend(tags.into_allowed_iter());
                } else {
                    log::debug!("設定標籤:{:?}", tags);
                    info.tags = tags.into_allowed_iter().collect();
                }
            }
            info.write();
        })
        .await
}
async fn edit_or_create<'b>(
    edit_query: EditQuery,
    script_repo: &'b mut ScriptRepo,
    ty: Option<ScriptType>,
    tags: EditTagArgs,
) -> Result<(PathBuf, ScriptRepoEntry<'b>)> {
    let final_ty: ScriptType;
    let mut new_namespaces: Vec<Tag> = vec![];

    let (script_name, script_path) = if let EditQuery::Query(query) = edit_query {
        macro_rules! new_named {
            () => {{
                final_ty = ty.unwrap_or_default();
                let name = query.into_script_name()?;
                if script_repo.get_hidden_mut(&name).is_some() {
                    log::error!("與被篩掉的腳本撞名");
                    return Err(Error::ScriptExist(name.to_string()));
                }
                log::debug!("打開新命名腳本:{:?}", name);
                if tags.append_namespace {
                    new_namespaces = name
                        .namespaces()
                        .iter()
                        .map(|s| Tag::from_str(s))
                        .collect::<Result<Vec<_>>>()?;
                }

                let p = path::open_script(&name, &final_ty, Some(false))
                    .context(format!("打開新命名腳本失敗:{:?}", name))?;
                (name, p)
            }};
        }

        match query::do_script_query(&query, script_repo) {
            Err(Error::DontFuzz) => new_named!(),
            Ok(None) => new_named!(),
            Ok(Some(entry)) => {
                if let Some(ty) = ty {
                    log::warn!("已存在的腳本無需再指定類型");
                    if ty != entry.ty {
                        return Err(Error::CategoryMismatch {
                            expect: ty,
                            actual: entry.ty.clone(),
                        });
                    }
                }
                log::debug!("打開既有命名腳本:{:?}", entry.name);
                let p = path::open_script(&entry.name, &entry.ty, Some(true))
                    .context(format!("打開命名腳本失敗:{:?}", entry.name))?;
                // FIXME: 一旦 NLL 進化就修掉這段雙重詢問
                // return Ok((p, entry));
                let n = entry.name.clone();
                return Ok((p, script_repo.get_mut(&n, true).unwrap()));
            }
            Err(e) => return Err(e),
        }
    } else {
        final_ty = ty.unwrap_or_default();
        log::debug!("打開新匿名腳本");
        path::open_new_anonymous(&final_ty).context("打開新匿名腳本失敗")?
    };

    log::info!("編輯 {:?}", script_name);

    let entry = script_repo.entry(&script_name);
    let entry = match entry.into_either() {
        Either::One(mut entry) => {
            if tags.change_existing {
                mv(&mut entry, None, None, Some(tags.content)).await?;
            }
            entry
        }
        Either::Two(entry) => {
            entry
                .or_insert(
                    ScriptInfo::builder(
                        0,
                        script_name,
                        final_ty,
                        tags.content
                            .into_allowed_iter()
                            .chain(new_namespaces.into_iter()),
                    )
                    .build(),
                )
                .await?
        }
    };

    Ok((script_path, entry))
}