feat(cli): enhance iOS bundle version formatting

follow-up for #13030 and tauri-apps/cargo-mobile2#450

the bundle version validation has been updated, now it can actually handle one or two integers (e.g. `100` or `10.7`) instead of just full triple semver strings (e.g. `10.7.1`).

Author: lucasfernog

Cargo.lock

@@ -36,7 +36,7 @@ name = "cargo-tauri"
 path = "src/main.rs"
 
 [target."cfg(any(target_os = \"linux\", target_os = \"dragonfly\", target_os = \"freebsd\", target_os = \"openbsd\", target_os = \"netbsd\", target_os = \"windows\", target_os = \"macos\"))".dependencies]
-cargo-mobile2 = { version = "0.18", default-features = false }
+cargo-mobile2 = { version = "0.19", default-features = false }
 
 [dependencies]
 jsonrpsee = { version = "0.24", features = ["server"] }

crates/tauri-cli/Cargo.toml

@@ -119,3 +119,22 @@ pub fn run_hook(
 
   Ok(())
 }
+
+pub fn strip_semver_prerelease_tag(version: &mut semver::Version) -> crate::Result<()> {
+  if !version.pre.is_empty() {
+    if let Some((_prerelease_tag, number)) = version.pre.as_str().to_string().split_once('.') {
+      version.pre = semver::Prerelease::EMPTY;
+      version.build = semver::BuildMetadata::new(&format!(
+        "{prefix}{number}",
+        prefix = if version.build.is_empty() {
+          "".to_string()
+        } else {
+          format!(".{}", version.build.as_str())
+        }
+      ))
+      .with_context(|| format!("bundle version {number:?} prerelease is invalid"))?;
+    }
+  }
+
+  Ok(())
+}

crates/tauri-cli/src/helpers/mod.rs

@@ -14,7 +14,7 @@ use crate::{
     config::{get as get_tauri_config, ConfigHandle},
     flock,
   },
-  interface::{AppInterface, AppSettings, Interface, Options as InterfaceOptions},
+  interface::{AppInterface, Interface, Options as InterfaceOptions},
   mobile::{write_options, CliOptions},
   ConfigValue, Result,
 };
@@ -36,7 +36,6 @@ use std::{
   env::{set_current_dir, var, var_os},
   fs,
   path::PathBuf,
-  str::FromStr,
 };
 
 #[derive(Debug, Clone, Parser)]
@@ -183,36 +182,10 @@ pub fn command(options: Options, noise_level: NoiseLevel) -> Result<()> {
   inject_resources(&config, tauri_config.lock().unwrap().as_ref().unwrap())?;
 
   let mut plist = plist::Dictionary::new();
-  {
-    let tauri_config_guard = tauri_config.lock().unwrap();
-    let tauri_config_ = tauri_config_guard.as_ref().unwrap();
-    let app_version = tauri_config_
-      .version
-      .clone()
-      .unwrap_or_else(|| interface.app_settings().get_package_settings().version);
-
-    let mut version = semver::Version::from_str(&app_version)
-      .with_context(|| format!("failed to parse {app_version:?} as a semver string"))?;
-    if !version.pre.is_empty() {
-      log::info!(
-        "CFBundleShortVersionString cannot have prerelease identifier; stripping {}",
-        version.pre.as_str()
-      );
-      version.pre = semver::Prerelease::EMPTY;
-    }
-    if !version.build.is_empty() {
-      log::info!(
-        "CFBundleShortVersionString cannot have build number; stripping {}",
-        version.build.as_str()
-      );
-      version.build = semver::BuildMetadata::EMPTY;
-    }
-
-    plist.insert(
-      "CFBundleShortVersionString".into(),
-      version.to_string().into(),
-    );
-  };
+  plist.insert(
+    "CFBundleShortVersionString".into(),
+    config.bundle_version_short().into(),
+  );
 
   let info_plist_path = config
     .project_dir()
@@ -338,9 +311,10 @@ fn run_build(
     &detect_target_ok,
     env,
     |target: &Target| -> Result<()> {
-      let mut app_version = config.bundle_version().clone();
+      let mut app_version = config.bundle_version().to_string();
       if let Some(build_number) = options.build_number {
-        app_version.push_extra(build_number);
+        app_version.push('.');
+        app_version.push_str(&build_number.to_string());
       }
 
       let credentials = auth_credentials_from_env()?;

crates/tauri-cli/src/mobile/ios/build.rs

@@ -2,7 +2,6 @@
 // SPDX-License-Identifier: Apache-2.0
 // SPDX-License-Identifier: MIT
 
-use anyhow::Context;
 use cargo_mobile2::{
   apple::{
     config::{
@@ -31,7 +30,7 @@ use crate::{
   helpers::{
     app_paths::tauri_dir,
     config::{BundleResources, Config as TauriConfig, ConfigHandle},
-    pbxproj,
+    pbxproj, strip_semver_prerelease_tag,
   },
   Result,
 };
@@ -130,30 +129,72 @@ pub fn get_config(
     .clone()
     .or_else(|| tauri_config.version.clone())
   {
-    let mut version = semver::Version::from_str(&bundle_version)
-      .with_context(|| format!("failed to parse {bundle_version:?} as a semver string"))?;
-    if !version.pre.is_empty() {
-      if let Some((_prerelease_tag, number)) = version.pre.as_str().to_string().split_once('.') {
-        version.pre = semver::Prerelease::EMPTY;
+    // if it's a semver string, we must strip the prerelease tag
+    if let Ok(mut version) = semver::Version::from_str(&bundle_version) {
+      if !version.pre.is_empty() {
+        log::warn!("CFBundleVersion cannot have prerelease tag; stripping from {bundle_version}");
+        strip_semver_prerelease_tag(&mut version)?;
+      }
+      // correctly serialize version - cannot contain `+` as build metadata separator
+      Some(format!(
+        "{}.{}.{}{}",
+        version.major,
+        version.minor,
+        version.patch,
         if version.build.is_empty() {
-          version.build = semver::BuildMetadata::new(number)
-            .with_context(|| format!("bundle version {number:?} prerelease is invalid"))?;
+          "".to_string()
         } else {
-          anyhow::bail!("bundle version {bundle_version:?} is invalid, it cannot have both prerelease and build metadata");
+          format!(".{}", version.build.as_str())
         }
+      ))
+    } else {
+      // let it go as is - cargo-mobile2 will validate it
+      Some(bundle_version)
+    }
+  } else {
+    None
+  };
+  let full_bundle_version_short = if let Some(app_version) = &tauri_config.version {
+    if let Ok(mut version) = semver::Version::from_str(app_version) {
+      if !version.pre.is_empty() {
+        log::warn!(
+          "CFBundleShortVersionString cannot have prerelease tag; stripping from {app_version}"
+        );
+        strip_semver_prerelease_tag(&mut version)?;
       }
+      // correctly serialize version - cannot contain `+` as build metadata separator
+      Some(format!(
+        "{}.{}.{}{}",
+        version.major,
+        version.minor,
+        version.patch,
+        if version.build.is_empty() {
+          "".to_string()
+        } else {
+          format!(".{}", version.build.as_str())
+        }
+      ))
+    } else {
+      // let it go as is - cargo-mobile2 will validate it
+      Some(app_version.clone())
     }
+  } else {
+    bundle_version.clone()
+  };
+  let bundle_version_short = if let Some(full_version) = full_bundle_version_short.as_deref() {
+    let mut s = full_version.split('.');
+    let short_version = format!(
+      "{}.{}.{}",
+      s.next().unwrap_or("0"),
+      s.next().unwrap_or("0"),
+      s.next().unwrap_or("0")
+    );
 
-    let maybe_build_number = if version.build.is_empty() {
-      "".to_string()
-    } else {
-      format!(".{}", version.build.as_str())
-    };
+    if short_version != full_version {
+      log::warn!("{full_version:?} is not a valid CFBundleShortVersionString since it must contain exactly three dot separated integers; setting it to {short_version} instead");
+    }
 
-    Some(format!(
-      "{}.{}.{}{}",
-      version.major, version.minor, version.patch, maybe_build_number
-    ))
+    Some(short_version)
   } else {
     None
   };
@@ -178,6 +219,7 @@ pub fn get_config(
         }),
     ios_features: ios_options.features.clone(),
     bundle_version,
+    bundle_version_short,
     ios_version: Some(tauri_config.bundle.ios.minimum_system_version.clone()),
     ..Default::default()
   };