Release 0.4.1 - Compatibility bug and improved error handling.

- Disallow multiple type parameters applied to --create
- Provide the ROOT type in pacwrap-utils replicate function
- Updated help manual.

Cargo.lock

@@ -362,7 +362,7 @@ dependencies = [
 
 [[package]]
 name = "pacwrap"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "alpm",
  "bitflags 2.4.1",

Cargo.toml

@@ -2,7 +2,7 @@
 
 [package]
 name = "pacwrap"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 
 [dependencies]

bin/pacwrap-utils

@@ -359,6 +359,7 @@ replicate_instance() {
 	[[ $type != BASE ]] && depend=$(return_dependency)
 
 	case $type in
+		ROOT) params+="r";;
 		BASE)	params+="b";;	
 		DEP)	params+="d";;	
 		LINK)	ln -s "$INSTANCE_ROOT_DIR/$depend" "$INSTANCE_ROOT_DIR/$instance"

dist/pacwrap-base-dist/PKGBUILD

@@ -1,7 +1,7 @@
 # Maintainer: Xavier R.M. (sapphirus at azorium dot net)
 
 pkgname=('pacwrap-base-dist')
-pkgver=0.4.0
+pkgver=0.4.1
 pkgrel=1
 pkgdesc=""
 arch=('any')

src/compat.rs

@@ -10,6 +10,7 @@ use crate::config::{self,
     InsVars, 
     InstanceType, 
     InstanceHandle};
+use crate::utils::print_help_error;
 use crate::utils::{arguments::{Arguments, Operand}, 
     handle_process, 
     env_var};
@@ -90,7 +91,7 @@ pub fn compat(mut args: Arguments) {
     match args.next().unwrap_or_default() {
         Operand::Short('s') | Operand::Long("save") => save_configuration(args.target()),
         Operand::Short('l') | Operand::Long("load") => print_configuration(args.target()), 
-        _ => args.invalid_operand()
+        _ => print_help_error(args.invalid_operand())
     }
 }
 

src/main.rs

@@ -28,7 +28,6 @@ fn main() {
         Operand::Short('h') | Operand::Long("help") => manual::help(arguments),
         Operand::Short('V') | Operand::Long("version") => manual::print_version(arguments),
         Operand::Long("compat") => compat::compat(arguments), 
-        Operand::None => print_help_error("Operation not specified."),
+        _ => print_help_error(arguments.invalid_operand()),
-        _ => arguments.invalid_operand(),
     }
 }

src/manual.rs

@@ -21,12 +21,15 @@ lazy_static! {
 pub fn help(mut args: Arguments) {
     let help = ascertain_help(&mut args);
     
-    for topic in help.0 {
+    match help {
-        topic.display(help.1);
+        Ok(help) => for topic in help.0 {
+            topic.display(help.1);
+        }
+        Err(err) => print_help_error(err),
     }
 }
 
-fn ascertain_help<'a>(args: &mut Arguments) -> (IndexSet<&'a HelpTopic>, &'a HelpLayout) {
+fn ascertain_help<'a>(args: &mut Arguments) -> Result<(IndexSet<&'a HelpTopic>, &'a HelpLayout), String> {
     let mut layout = match is_color_terminal() {
         true => &HelpLayout::Console, false => &HelpLayout::Dumb,
     };
@@ -75,8 +78,9 @@ fn ascertain_help<'a>(args: &mut Arguments) -> (IndexSet<&'a HelpTopic>, &'a Hel
                 | Operand::LongPos("help", "all")
                 | Operand::Short('a')
                 | Operand::Long("all") => topic.extend(HELP_ALL.iter()),
-            Operand::ShortPos('h', topic) | Operand::LongPos("help", topic) => print_help_error(format!("Topic '{topic}' is not available.")),
+            Operand::ShortPos('h', topic) 
-           _ => args.invalid_operand(),
+                | Operand::LongPos("help", topic) => Err(format!("Topic '{topic}' is not available."))?,
+           _ => Err(args.invalid_operand())?,
         }
     }
 
@@ -84,7 +88,7 @@ fn ascertain_help<'a>(args: &mut Arguments) -> (IndexSet<&'a HelpTopic>, &'a Hel
     let start = if more || len == 1 || len > 7 { 0 } else { 1 }; 
 
     args.set_index(1);
-    (topic.drain(start..).collect(), layout)
+    Ok((topic.drain(start..).collect(), layout))
 }
 
 fn minimal(args: &mut Arguments) -> bool {
@@ -203,7 +207,6 @@ fn default(layout: &HelpLayout) {
         println!("# {name} 1 \"{version}-{suffix} ({timestamp})\" {name} \"User Manual\"\n");
     }
 
-
     println!("{head}NAME{reset}
 {tab}pacwrap - Command-line application which facilitates the creation, management, and execution of unprivileged, 
 {tab}Sandboxed containers with bubblewrap and libalpm.
@@ -271,6 +274,7 @@ fn meta(layout: &HelpLayout) {
 
 fn sync(layout: &HelpLayout) {
     let head = layout.head();
+    let bold = layout.bold();
     let sub = layout.sub();
     let sub_text = layout.sub_text();
     let reset = layout.reset(); 
@@ -287,6 +291,18 @@ fn sync(layout: &HelpLayout) {
 {sub}-f, --filesystem{reset_bold}
 {sub_text}Force execution of filesystem synchronization coroutines on all or specified containers.
 
+{sub}-c, --create{reset_bold}
+{sub_text}Create a container with the first specified target. Providing a container type argument is also required.
+
+{sub}-b, --base{reset_bold}
+{sub_text}Base container type. Specify alongside {bold}-c, --create{reset_bold} to assign container type during creation.
+
+{sub}-d, --slice{reset_bold}
+{sub_text}Slice container type. Specify alongside {bold}-c, --create{reset_bold} to to assign container type during creation.
+
+{sub}-r, --root{reset_bold}
+{sub_text}Root container type. Specify alongside {bold}-c, --create{reset_bold} to assign container type during creation.
+
 {sub}--dbonly{reset_bold}
 {sub_text}Transact on resident containers with a database-only transaction.
 
@@ -294,7 +310,11 @@ fn sync(layout: &HelpLayout) {
 {sub_text}Force synchronization of foreign packages on resident container.
 
 {sub}--dbonly{reset_bold}
-{sub_text}Override confirmation prompts and confirm all operations.\n");
+{sub_text}Override confirmation prompts and confirm all operations.
+
+{sub}-t, --target=TARGET{reset_bold}
+{sub_text}Specify a target container for the specified operation.\n");
+
 }
 
 fn process(layout: &HelpLayout) {
@@ -346,6 +366,7 @@ fn copyright(layout: &HelpLayout) {
     let tab = layout.tab();
 
     println!("{head}COPYRIGHT{reset}
+
 {sub_text}Copyright (C) 2023 - Xavier R.M.
 
 {tab}This program may be freely redistributed under
@@ -369,7 +390,7 @@ pub fn print_version(mut args: Arguments) {
 ACCCCCCCC#####CCCCC######C######C###CCCCCCCCCP
 ACCCCCCCCCCC######CC####CCC####CCCCCCCCCCCCCCP
 ACCCCCCCCCCCCCC##CCCCCCCCCCCCCCCCCCCCCCCCCCCCP	Website: https://pacwrap.sapphirus.org/
-ACCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCP	Github: https;//git.sapphirus.org/
+ACCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCP	Github: https://github.com/sapphirusberyl/pacwrap
 ACCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCP
 ACCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCP
  RPCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCP	This program may be freely redistributed under

src/sync.rs

@@ -63,19 +63,24 @@ pub fn synchronize(mut args: Arguments) {
         TransactionType::Upgrade(u > 0, y > 0, y > 1)
     };
 
-    if let Some(instype) = create_type(&mut args) {
+    match create_type(&mut args) {
-        if let TransactionType::Upgrade(upgrade, refresh, _) = action { 
+        Ok(option) => if let Some(instype) = option {
-            if ! upgrade {
+            if let TransactionType::Upgrade(upgrade, refresh, _) = action { 
-                print_help_error("--upgrade/-u not supplied with --create/-c.");
+                if ! upgrade {
-            } else if ! refresh {
+                    print_help_error("--upgrade/-u not supplied with --create/-c.");
-                print_help_error("--refresh/-y not supplied with --create/-c.");
+                } else if ! refresh {
+                    print_help_error("--refresh/-y not supplied with --create/-c.");
+                }
             }
-        }
 
-        create(instype, args.targets());
+            create(instype, args.targets());
+        },
+        Err(error) => print_help_error(error),
     }
 
-    aggregator::upgrade(action, &mut args, &mut cache, &mut logger).aggregate(&mut InstanceCache::new());
+    match aggregator::upgrade(action, &mut args, &mut cache, &mut logger) {
+        Ok(ag) => ag.aggregate(&mut InstanceCache::new()), Err(e) => print_help_error(e)
+    }
 }
 
 pub fn remove(mut args: Arguments) {
@@ -96,10 +101,12 @@ pub fn remove(mut args: Arguments) {
         TransactionType::Remove(recursive > 0 , cascade, recursive > 1) 
     };
     
-    aggregator::remove(action, &mut args, &mut cache, &mut logger).aggregate(&mut InstanceCache::new());
+    match aggregator::remove(action, &mut args, &mut cache, &mut logger) {
+        Ok(ag) => ag.aggregate(&mut InstanceCache::new()), Err(e) => print_help_error(e),
+    }
 }
 
-fn create_type(args: &mut Arguments) -> Option<InstanceType> {
+fn create_type<'a>(args: &mut Arguments) -> Result<Option<InstanceType>, &'a str> {
     let mut instype = None;
     let mut create = false;
 
@@ -108,14 +115,28 @@ fn create_type(args: &mut Arguments) -> Option<InstanceType> {
     while let Some(arg) = args.next() {
         match arg {
             Operand::Short('c') | Operand::Long("create") => create = true, 
-            Operand::Short('b') | Operand::Long("base") => instype = Some(InstanceType::BASE),
+            Operand::Short('b') | Operand::Long("base") => match instype { 
-            Operand::Short('d') | Operand::Long("slice") => instype = Some(InstanceType::DEP),
+                None => instype =  Some(InstanceType::BASE),
-            Operand::Short('r') | Operand::Long("root") => instype = Some(InstanceType::ROOT),
+                Some(_) => Err("Multiple container types cannot be assigned to a container.")?,
+            },
+            Operand::Short('d') | Operand::Long("slice") => match instype {
+                None => instype = Some(InstanceType::DEP),
+                Some(_) => Err("Multiple container types cannot be assigned to a container.")?,
+            },
+            Operand::Short('r') | Operand::Long("root") => match instype {
+                None => instype = Some(InstanceType::ROOT),
+                Some(_) => Err("Multiple container types cannot be assigned to a container.")?,
+            },
             _ => continue,
         } 
     }
 
-    if create { instype } else { None }
+    match create { 
+        true => match instype {
+            None => Err("Instance type not specified"), Some(_) => Ok(instype),
+        },
+        false => Ok(None) 
+    }
 }
 
 pub fn create(instype: InstanceType, mut targets: Vec<&str>) {
@@ -199,7 +220,7 @@ pub fn query(mut arguments: Arguments) {
             Operand::Short('e') | Operand::Long("explicit") => explicit = true,
             Operand::Short('q') | Operand::Long("quiet") => quiet = true,
             Operand::LongPos("target", t) | Operand::ShortPos(_, t) => target = t,
-            _ => arguments.invalid_operand(),
+            _ => print_help_error(arguments.invalid_operand()),
         }
     }
 

src/sync/transaction/aggregator.rs

@@ -11,8 +11,7 @@ use crate::sync::{self,
 use crate::config::{InstanceHandle, 
     InstanceType::ROOT,
     cache::InstanceCache};
-use crate::utils::{Arguments, print_help_error};
+use crate::utils::{arguments::Operand, Arguments};
-use crate::utils::arguments::Operand;
 use super::{
     Transaction,
     TransactionHandle,
@@ -190,7 +189,7 @@ impl <'a>TransactionAggregator<'a> {
     }
 }
 
-pub fn remove<'a>(action_type: TransactionType, args: &'a mut Arguments, inscache: &'a mut InstanceCache, log: &'a mut Logger) -> TransactionAggregator<'a> { 
+pub fn remove<'a>(action_type: TransactionType, args: &'a mut Arguments, inscache: &'a mut InstanceCache, log: &'a mut Logger) -> Result<TransactionAggregator<'a>, String> { 
     let mut action_flags = TransactionFlags::NONE;
     let mut targets = Vec::new();
     let mut queue: HashMap<Rc<str>,Vec<Rc<str>>> = HashMap::new();
@@ -199,7 +198,7 @@ pub fn remove<'a>(action_type: TransactionType, args: &'a mut Arguments, inscach
     args.set_index(1);
 
     if let Operand::None = args.next().unwrap_or_default() {
-        print_help_error("Operation not specified.");
+        Err("Operation not specified.")?
     }
 
     while let Some(arg) = args.next() {
@@ -228,12 +227,12 @@ pub fn remove<'a>(action_type: TransactionType, args: &'a mut Arguments, inscach
                     None => { queue.insert(current_target.into(), vec!(package.into())); },
                 }
             },
-            _ => args.invalid_operand(),
+            _ => Err(args.invalid_operand())?,
         }
     }
         
     if current_target == "" {
-        print_help_error("Target not specified");
+        Err("Target not specified")?
     }
 
     let current_target = Some(current_target);
@@ -244,7 +243,7 @@ pub fn remove<'a>(action_type: TransactionType, args: &'a mut Arguments, inscach
         inscache.populate();
     }
  
-    TransactionAggregator {
+    Ok(TransactionAggregator {
         queried: Vec::new(),
         updated: Vec::new(),
         pkg_queue: queue,
@@ -255,10 +254,10 @@ pub fn remove<'a>(action_type: TransactionType, args: &'a mut Arguments, inscach
         logger: log,
         flags:  action_flags,
         target: current_target,
-    }
+    })
 }
 
-pub fn upgrade<'a>(action_type: TransactionType, args: &'a mut Arguments, inscache: &'a mut InstanceCache, log: &'a mut Logger) -> TransactionAggregator<'a> { 
+pub fn upgrade<'a>(action_type: TransactionType, args: &'a mut Arguments, inscache: &'a mut InstanceCache, log: &'a mut Logger) -> Result<TransactionAggregator<'a>, String> { 
     let mut action_flags = TransactionFlags::NONE;
     let mut targets = Vec::new();
     let mut queue: HashMap<Rc<str>,Vec<Rc<str>>> = HashMap::new();
@@ -269,7 +268,7 @@ pub fn upgrade<'a>(action_type: TransactionType, args: &'a mut Arguments, inscac
     args.set_index(2);
 
     if let Operand::None = args.next().unwrap_or_default() {
-        print_help_error("Operation not specified.");
+        Err("Operation not specified.")?
     }
 
     while let Some(arg) = args.next() {
@@ -307,15 +306,14 @@ pub fn upgrade<'a>(action_type: TransactionType, args: &'a mut Arguments, inscac
                     },
                 }
             },
-            Operand::None => println!("none"),
+            _ => Err(args.invalid_operand())?,
-            _ => args.invalid_operand(),
         }
     }
 
     let current_target = match target_only {
         true => {
             if current_target == "" {
-                print_help_error("Target not specified");
+                Err("Target not specified")?
             }
 
             Some(current_target)
@@ -329,7 +327,7 @@ pub fn upgrade<'a>(action_type: TransactionType, args: &'a mut Arguments, inscac
         inscache.populate();
     }
  
-    TransactionAggregator {
+    Ok(TransactionAggregator {
         queried: Vec::new(),
         updated: Vec::new(),
         pkg_queue: queue,
@@ -340,5 +338,5 @@ pub fn upgrade<'a>(action_type: TransactionType, args: &'a mut Arguments, inscac
         logger: log,
         flags:  action_flags,
         target: current_target,
-    }
+    })
 }

src/utils/arguments.rs

@@ -105,10 +105,10 @@ impl<'a> Arguments<'a> {
         self.cur = index;
     }
 
-    pub fn invalid_operand(&self) {
+    pub fn invalid_operand(&self) -> String {
         match self.operands.get(self.cur) {
-            Some(oper) => print_help_error(&format!("Invalid option -- '{}'", oper)),
+            Some(oper) => format!("Invalid option -- '{}'", oper),
-            None => print_help_error(&format!("Operation not specified.")),
+            None => format!("Operation not specified."),
         }
     }