Add synctex option in Toml file (#1197)

Authored by: Stéphane Kastenbaum <stephane.kastenbaum@inria.fr>

crates/docmodel/src/document.rs

@@ -233,6 +233,11 @@ pub struct OutputProfile {
     /// Directory is not managed and any files created in it will not be deleted.
     ///
     pub shell_escape_cwd: Option<String>,
+
+    /// Whether synctex should be activated for this profile.
+    ///
+    /// Default is false.
+    pub synctex: bool,
 }
 
 /// The output target type of a document build.
@@ -325,6 +330,7 @@ pub(crate) fn default_outputs() -> HashMap<String, OutputProfile> {
                 .collect(),
             shell_escape: false,
             shell_escape_cwd: None,
+            synctex: false,
         },
     );
     outputs
@@ -370,4 +376,37 @@ mod tests {
         let doc = Document::new_from_toml(".", ".", &mut c).unwrap();
         assert!(doc.outputs.get("o").unwrap().shell_escape);
     }
+
+    #[test]
+    fn synctex_default_false() {
+        const TOML: &str = r#"
+        [doc]
+        name = "test"
+        bundle = "na"
+
+        [[output]]
+        name = "o"
+        type = "pdf"
+        "#;
+        let mut c = Cursor::new(TOML.as_bytes());
+        let doc = Document::new_from_toml(".", ".", &mut c).unwrap();
+        assert!(!doc.outputs.get("o").unwrap().synctex);
+    }
+
+    #[test]
+    fn synctex_set_true() {
+        const TOML: &str = r#"
+        [doc]
+        name = "test"
+        bundle = "na"
+
+        [[output]]
+        name = "o"
+        type = "pdf"
+        synctex = true
+        "#;
+        let mut c = Cursor::new(TOML.as_bytes());
+        let doc = Document::new_from_toml(".", ".", &mut c).unwrap();
+        assert!(doc.outputs.get("o").unwrap().synctex);
+    }
 }

crates/docmodel/src/syntax.rs

@@ -98,6 +98,7 @@ pub struct TomlOutputProfile {
     pub tex_format: Option<String>,
     pub shell_escape: Option<bool>,
     pub shell_escape_cwd: Option<String>,
+    pub synctex: Option<bool>,
 
     // We cannot handle these two input variants with an enum.
     // The ideal solution requires #[serde(flatten)],
@@ -118,6 +119,7 @@ pub struct TomlOutputProfile {
 impl From<&TomlOutputProfile> for OutputProfile {
     fn from(val: &TomlOutputProfile) -> OutputProfile {
         let shell_escape_default = val.shell_escape_cwd.is_some();
+        let synctex_default = false;
 
         let inputs = {
             if let Some(inputs) = &val.inputs {
@@ -152,6 +154,7 @@ impl From<&TomlOutputProfile> for OutputProfile {
             inputs,
             shell_escape: val.shell_escape.unwrap_or(shell_escape_default),
             shell_escape_cwd: val.shell_escape_cwd.clone(),
+            synctex: val.synctex.unwrap_or(synctex_default),
         }
     }
 }
@@ -169,6 +172,7 @@ impl From<&OutputProfile> for TomlOutputProfile {
 
         let shell_escape = if !rt.shell_escape { None } else { Some(true) };
         let shell_escape_cwd = rt.shell_escape_cwd.clone();
+        let synctex = if !rt.synctex { None } else {Some(true)};
 
         TomlOutputProfile {
             name: rt.name.clone(),
@@ -177,6 +181,7 @@ impl From<&OutputProfile> for TomlOutputProfile {
             inputs: Some(inputs),
             shell_escape,
             shell_escape_cwd,
+            synctex,
             preamble_file: None,
             index_file: None,
             postamble_file: None,

docs/src/ref/tectonic-toml.md

@@ -83,6 +83,9 @@ shell_escape = false
 # This is optional, and defaults to a temporary directory.
 shell_escape_cwd = "string"
 
+# Whether the synctex files will be created. This is optional and defaults to false.
+synctex = false
+
 # The input file we'll use to build this document,
 # Given as a path relative to the `./src` directory.
 #

src/docmodel.rs

@@ -153,7 +153,8 @@ impl DocumentExt for Document {
             })
             .pass(PassSetting::Default)
             .primary_input_buffer(input_buffer.as_bytes())
-            .tex_input_name(output_profile);
+            .tex_input_name(output_profile)
+            .synctex(profile.synctex);
 
         if profile.shell_escape {
             // For now, this is the only option we allow.

tests/synctex/Tectonic.toml

@@ -0,0 +1,13 @@
+[doc]
+name = "synctex"
+bundle = "https://data1.fullyjustified.net/tlextras-2022.0r0.tar"
+
+[[output]]
+name = "default"
+type = "pdf"
+synctex = true
+inputs = [
+    "_preamble.tex",
+    "index.tex",
+    "_postamble.tex",
+]

tests/synctex/src/_postamble.tex

@@ -0,0 +1 @@
+\end{document}

tests/synctex/src/_preamble.tex

@@ -0,0 +1,3 @@
+\documentclass{article}
+\title{My Title}
+\begin{document}

tests/synctex/src/index.tex

@@ -0,0 +1 @@
+Hello, world.