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reference/dot-resolve_app_version.md

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+# Resolve the current app version
+
+Tries two strategies in order:
+
+1.  `utils::packageVersion(package_name)` – works when the package is
+    installed locally (development, local
+    [`runApp()`](https://rdrr.io/pkg/shiny/man/runApp.html)).
+
+2.  `app_version` argument – an explicit version string supplied by the
+    caller, e.g. from an `app_version()` function bundled with the app.
+    Used on shinyapps.io where the package is not installed.
+
+## Usage
+
+``` r
+.resolve_app_version(package_name, app_version = NULL)
+```
+
+## Arguments
+
+- package_name:
+
+  Name of the package / repository.
+
+- app_version:
+
+  Optional fallback version string.
+
+## Value
+
+A character string with the version (e.g. "1.1.0"), or NULL if neither
+strategy succeeds.