diff --git a/README.md b/README.md
index 9efa80a..040639f 100644
--- a/README.md
+++ b/README.md
@@ -1426,6 +1426,12 @@ $ just
- `env(key)`1.15.0 — Alias for `env_var(key)`.
- `env(key, default)`1.15.0 — Alias for `env_var_or_default(key, default)`.
+#### Invocation Information
+
+- `is_dependency()` - Returns the string `true` if the current recipe is being
+ run as a dependency of another recipe, rather than being run directly,
+ otherwise returns the string `false`.
+
#### Invocation Directory
- `invocation_directory()` - Retrieves the absolute path to the current
diff --git a/src/evaluator.rs b/src/evaluator.rs
index ba33677..82260b8 100644
--- a/src/evaluator.rs
+++ b/src/evaluator.rs
@@ -3,6 +3,7 @@ use super::*;
pub(crate) struct Evaluator<'src: 'run, 'run> {
pub(crate) assignments: Option<&'run Table<'src, Assignment<'src>>>,
pub(crate) context: ExecutionContext<'src, 'run>,
+ pub(crate) is_dependency: bool,
pub(crate) scope: Scope<'src, 'run>,
}
@@ -49,6 +50,7 @@ impl<'src, 'run> Evaluator<'src, 'run> {
context,
assignments: Some(&module.assignments),
scope,
+ is_dependency: false,
};
for assignment in module.assignments.values() {
@@ -280,10 +282,11 @@ impl<'src, 'run> Evaluator<'src, 'run> {
pub(crate) fn evaluate_parameters(
context: &ExecutionContext<'src, 'run>,
+ is_dependency: bool,
arguments: &[String],
parameters: &[Parameter<'src>],
) -> RunResult<'src, (Scope<'src, 'run>, Vec)> {
- let mut evaluator = Self::new(context, context.scope);
+ let mut evaluator = Self::new(context, is_dependency, context.scope);
let mut positional = Vec::new();
@@ -324,11 +327,13 @@ impl<'src, 'run> Evaluator<'src, 'run> {
pub(crate) fn new(
context: &ExecutionContext<'src, 'run>,
+ is_dependency: bool,
scope: &'run Scope<'src, 'run>,
) -> Self {
Self {
- context: *context,
assignments: None,
+ context: *context,
+ is_dependency,
scope: scope.child(),
}
}
diff --git a/src/function.rs b/src/function.rs
index d44bbb5..206faf8 100644
--- a/src/function.rs
+++ b/src/function.rs
@@ -59,6 +59,7 @@ pub(crate) fn get(name: &str) -> Option {
"home_directory" => Nullary(|_| dir("home", dirs::home_dir)),
"invocation_directory" => Nullary(invocation_directory),
"invocation_directory_native" => Nullary(invocation_directory_native),
+ "is_dependency" => Nullary(is_dependency),
"join" => BinaryPlus(join),
"just_executable" => Nullary(just_executable),
"just_pid" => Nullary(just_pid),
@@ -341,6 +342,10 @@ fn invocation_directory_native(context: Context) -> Result {
})
}
+fn is_dependency(context: Context) -> Result {
+ Ok(context.evaluator.is_dependency.to_string())
+}
+
fn prepend(_context: Context, prefix: &str, s: &str) -> Result {
Ok(
s.split_whitespace()
diff --git a/src/justfile.rs b/src/justfile.rs
index be5d5f8..5b3f0bf 100644
--- a/src/justfile.rs
+++ b/src/justfile.rs
@@ -257,6 +257,7 @@ impl<'src> Justfile<'src> {
&context,
&mut ran,
invocation.recipe,
+ false,
)?;
}
@@ -385,6 +386,7 @@ impl<'src> Justfile<'src> {
context: &ExecutionContext<'src, '_>,
ran: &mut Ran<'src>,
recipe: &Recipe<'src>,
+ is_dependency: bool,
) -> RunResult<'src> {
if ran.has_run(&recipe.namepath, arguments) {
return Ok(());
@@ -397,11 +399,11 @@ impl<'src> Justfile<'src> {
}
let (outer, positional) =
- Evaluator::evaluate_parameters(context, arguments, &recipe.parameters)?;
+ Evaluator::evaluate_parameters(context, is_dependency, arguments, &recipe.parameters)?;
let scope = outer.child();
- let mut evaluator = Evaluator::new(context, &scope);
+ let mut evaluator = Evaluator::new(context, true, &scope);
if !context.config.no_dependencies {
for Dependency { recipe, arguments } in recipe.dependencies.iter().take(recipe.priors) {
@@ -410,11 +412,11 @@ impl<'src> Justfile<'src> {
.map(|argument| evaluator.evaluate_expression(argument))
.collect::>>()?;
- Self::run_recipe(&arguments, context, ran, recipe)?;
+ Self::run_recipe(&arguments, context, ran, recipe, true)?;
}
}
- recipe.run(context, &scope, &positional)?;
+ recipe.run(context, &scope, &positional, is_dependency)?;
if !context.config.no_dependencies {
let mut ran = Ran::default();
@@ -426,7 +428,7 @@ impl<'src> Justfile<'src> {
evaluated.push(evaluator.evaluate_expression(argument)?);
}
- Self::run_recipe(&evaluated, context, &mut ran, recipe)?;
+ Self::run_recipe(&evaluated, context, &mut ran, recipe, true)?;
}
}
diff --git a/src/recipe.rs b/src/recipe.rs
index ac06839..13b3bb9 100644
--- a/src/recipe.rs
+++ b/src/recipe.rs
@@ -149,6 +149,7 @@ impl<'src, D> Recipe<'src, D> {
context: &ExecutionContext<'src, 'run>,
scope: &Scope<'src, 'run>,
positional: &[String],
+ is_dependency: bool,
) -> RunResult<'src, ()> {
let config = &context.config;
@@ -162,7 +163,7 @@ impl<'src, D> Recipe<'src, D> {
);
}
- let evaluator = Evaluator::new(context, scope);
+ let evaluator = Evaluator::new(context, is_dependency, scope);
if self.shebang {
self.run_shebang(context, scope, positional, config, evaluator)
diff --git a/tests/functions.rs b/tests/functions.rs
index caf772c..bfb05f2 100644
--- a/tests/functions.rs
+++ b/tests/functions.rs
@@ -1027,3 +1027,26 @@ import
)
.run();
}
+
+#[test]
+fn is_dependency() {
+ let justfile = "
+ alpha: beta
+ @echo 'alpha {{is_dependency()}}'
+ beta: && gamma
+ @echo 'beta {{is_dependency()}}'
+ gamma:
+ @echo 'gamma {{is_dependency()}}'
+ ";
+ Test::new()
+ .args(["alpha"])
+ .justfile(justfile)
+ .stdout("beta true\ngamma true\nalpha false\n")
+ .run();
+
+ Test::new()
+ .args(["beta"])
+ .justfile(justfile)
+ .stdout("beta false\ngamma true\n")
+ .run();
+}