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semora_cli/commands/
push.rs

1//! `semora push`: publish a file or folder.
2
3use std::path::Path;
4
5use anyhow::{Context, bail};
6use semora_proto::PushResponse;
7use serde_json::{Map, Value};
8
9use crate::args::PushArgs;
10use crate::bundle;
11use crate::client::{Client, PushQuery};
12use crate::remember::{self, Memo};
13use crate::{Ctx, docref, exit, output};
14
15/// What to send for `path`: body, content type, single-file name, warnings.
16pub struct Payload {
17    pub body: Vec<u8>,
18    pub content_type: &'static str,
19    pub filename: Option<String>,
20}
21
22pub fn payload(path: &Path) -> anyhow::Result<Payload> {
23    let meta =
24        std::fs::metadata(path).with_context(|| format!("cannot read {}", path.display()))?;
25    if meta.is_dir() {
26        let packed = bundle::pack_dir(path)?;
27        for (p, why) in &packed.skipped {
28            output::warn(format!("skipped {p} ({why})"));
29        }
30        if packed.files.is_empty() {
31            bail!("{} has no files Semora can serve", path.display());
32        }
33        if !packed.files.iter().any(|f| bundle::is_page(f)) {
34            bail!("{} has no Markdown or HTML page", path.display());
35        }
36        return Ok(Payload {
37            body: packed.tar,
38            content_type: "application/x-tar",
39            filename: None,
40        });
41    }
42    let name = path
43        .file_name()
44        .map(|n| n.to_string_lossy().into_owned())
45        .unwrap_or_default();
46    let lower = name.to_ascii_lowercase();
47    let content_type = if lower.ends_with(".md") || lower.ends_with(".markdown") {
48        "text/markdown; charset=utf-8"
49    } else if lower.ends_with(".html") || lower.ends_with(".htm") {
50        "text/html; charset=utf-8"
51    } else {
52        bail!("{name}: push a .md or .html file, or a folder");
53    };
54    let body = std::fs::read(path).with_context(|| format!("reading {}", path.display()))?;
55    if content_type.starts_with("text/markdown") {
56        let links = bundle::local_page_links(&String::from_utf8_lossy(&body));
57        if !links.is_empty() {
58            output::warn(format!(
59                "{name} links to local pages ({}); push the folder to publish them together as a bundle",
60                links.join(", ")
61            ));
62        }
63    }
64    Ok(Payload {
65        body,
66        content_type,
67        filename: Some(name),
68    })
69}
70
71/// `key=value` pairs; values that parse as JSON scalars keep their type.
72pub fn parse_meta(pairs: &[String]) -> anyhow::Result<Option<String>> {
73    if pairs.is_empty() {
74        return Ok(None);
75    }
76    let mut m = Map::new();
77    for p in pairs {
78        let (k, v) = p
79            .split_once('=')
80            .with_context(|| format!("--meta `{p}` must be key=value"))?;
81        let value = match serde_json::from_str::<Value>(v) {
82            Ok(j @ (Value::Number(_) | Value::Bool(_) | Value::Null)) => j,
83            _ => Value::String(v.to_string()),
84        };
85        m.insert(k.trim().to_string(), value);
86    }
87    Ok(Some(Value::Object(m).to_string()))
88}
89
90pub fn tags(args_tags: &[String], defaults: &[String]) -> Option<String> {
91    let all: Vec<String> = args_tags
92        .iter()
93        .flat_map(|t| t.split(','))
94        .chain(defaults.iter().map(String::as_str))
95        .map(str::trim)
96        .filter(|t| !t.is_empty())
97        .map(str::to_string)
98        .collect();
99    (!all.is_empty()).then(|| all.join(","))
100}
101
102/// Pushes `path`, replacing the explicit or remembered document. Returns the response.
103pub async fn push_path(
104    ctx: &Ctx,
105    client: &Client,
106    path: &Path,
107    explicit_id: Option<&str>,
108    force_new: bool,
109    query: &PushQuery,
110) -> anyhow::Result<PushResponse> {
111    let p = payload(path)?;
112    let mut q = query.clone();
113    q.filename = p.filename.clone();
114    let server = client.origin();
115    let config_dir = &ctx.settings.config_dir;
116    let remembered = if force_new || explicit_id.is_some() {
117        None
118    } else {
119        remember::load(config_dir, path)
120            .filter(|m| m.server == server)
121            .map(|m| m.id)
122    };
123    let explicit = explicit_id.map(docref::parse).transpose()?;
124    let target = explicit.clone().or(remembered.clone());
125    let resp = match target {
126        Some(id) => match client
127            .push(Some(&id), p.body.clone(), p.content_type, &q)
128            .await
129        {
130            Ok(r) => r,
131            Err(e) if exit::is_not_found(&e) && explicit.is_none() => {
132                output::warn(format!(
133                    "the remembered document {id} is gone; pushing a new document"
134                ));
135                client.push(None, p.body, p.content_type, &q).await?
136            }
137            Err(e) => return Err(e),
138        },
139        None => client.push(None, p.body, p.content_type, &q).await?,
140    };
141    let memo = Memo {
142        id: resp.id.clone(),
143        server,
144    };
145    if let Err(e) = remember::save(config_dir, path, &memo) {
146        output::warn(format!("could not remember the document id: {e:#}"));
147    }
148    Ok(resp)
149}
150
151pub fn print_push(ctx: &Ctx, r: &PushResponse) {
152    for b in &r.broken_links {
153        output::warn(format!("broken link in {}: {}", b.from, b.href));
154    }
155    for w in &r.warnings {
156        output::warn(w);
157    }
158    if ctx.json {
159        output::json(r);
160        return;
161    }
162    let files = if r.files == 1 {
163        "1 file".to_string()
164    } else {
165        format!("{} files", r.files)
166    };
167    println!(
168        "Pushed \"{}\" · r{} · {} · {}",
169        r.title, r.rev, r.kind, files
170    );
171    println!("  url   {}", r.url);
172    println!("  ws    {}", r.ws_url);
173    println!("  wait  semora wait {}", r.id);
174}
175
176pub async fn run(ctx: &Ctx, args: PushArgs) -> anyhow::Result<i32> {
177    let client = ctx.client()?;
178    let query = PushQuery {
179        title: args.title.clone(),
180        tags: tags(&args.tags, &ctx.settings.default_tags),
181        message: args.message.clone(),
182        entry: args.entry.clone(),
183        meta: parse_meta(&args.meta)?,
184        filename: None,
185    };
186    let resp = push_path(
187        ctx,
188        &client,
189        &args.path,
190        args.id.as_deref(),
191        args.new,
192        &query,
193    )
194    .await?;
195    if args.wait {
196        if !ctx.json {
197            print_push(ctx, &resp);
198        } else {
199            // With --wait --json, stdout carries only the events.
200            for b in &resp.broken_links {
201                output::warn(format!("broken link in {}: {}", b.from, b.href));
202            }
203        }
204        return crate::commands::wait::wait_for(ctx, &client, &resp.id, &args.wait_opts).await;
205    }
206    print_push(ctx, &resp);
207    Ok(exit::OK)
208}
209
210#[cfg(test)]
211mod tests {
212    use super::*;
213
214    #[test]
215    fn meta_values_keep_scalar_types() {
216        let m = parse_meta(&[
217            "a=1".into(),
218            "b=true".into(),
219            "c=hello world".into(),
220            "d=x=y".into(),
221        ])
222        .unwrap()
223        .unwrap();
224        let v: Value = serde_json::from_str(&m).unwrap();
225        assert_eq!(
226            v,
227            serde_json::json!({"a": 1, "b": true, "c": "hello world", "d": "x=y"})
228        );
229        assert!(parse_meta(&["novalue".into()]).is_err());
230        assert_eq!(parse_meta(&[]).unwrap(), None);
231    }
232
233    #[test]
234    fn tags_merge_flags_and_defaults() {
235        assert_eq!(
236            tags(&["a,b".into(), "c".into()], &["proj".into()]).as_deref(),
237            Some("a,b,c,proj")
238        );
239        assert_eq!(tags(&[], &[]), None);
240    }
241}