cli: remove most evolution-related template keywords (#32)

`obsolete`, `orphan`, and `abandoned` almost never appear in log
output these days, so let's remove them.

src/commands.rs

@@ -1719,9 +1719,6 @@ fn log_template(settings: &UserSettings) -> String {
             "branches: " branches "\n"
             "tags: " tags "\n"
             "open: " open "\n"
-            "abandoned: " abandoned "\n"
-            "obsolete: " obsolete "\n"
-            "orphan: " orphan "\n"
             "divergent: " divergent "\n"
             "has conflict: " conflict "\n"
             description "\n"
@@ -1734,7 +1731,7 @@ fn log_template(settings: &UserSettings) -> String {
 
 fn graph_log_template(settings: &UserSettings) -> String {
     // TODO: define a method on boolean values, so we can get auto-coloring
-    //       with e.g. `obsolete.then("obsolete")`
+    //       with e.g. `conflict.then("conflict")`
     let default_template = r#"
             label(if(open, "open"),
             commit_id.short()
@@ -1743,9 +1740,6 @@ fn graph_log_template(settings: &UserSettings) -> String {
             " " label("timestamp", author.timestamp())
             " " branches
             " " tags
-            if(abandoned, label("abandoned", " abandoned"))
-            if(obsolete, label("obsolete", " obsolete"))
-            if(orphan, label("orphan", " orphan"))
             if(divergent, label("divergent", " divergent"))
             if(conflict, label("conflict", " conflict"))
             "\n"

src/template_parser.rs

@@ -26,8 +26,8 @@ use crate::templater::{
     AuthorProperty, BranchProperty, ChangeIdProperty, CommitIdKeyword, CommitterProperty,
     ConditionalTemplate, ConflictProperty, ConstantTemplateProperty, CurrentCheckoutProperty,
     DescriptionProperty, DivergentProperty, DynamicLabelTemplate, GitRefsProperty, LabelTemplate,
-    ListTemplate, LiteralTemplate, ObsoleteProperty, OpenProperty, OrphanProperty, PrunedProperty,
+    ListTemplate, LiteralTemplate, OpenProperty, StringPropertyTemplate, TagProperty, Template,
-    StringPropertyTemplate, TagProperty, Template, TemplateFunction, TemplateProperty,
+    TemplateFunction, TemplateProperty,
 };
 
 #[derive(Parser)]
@@ -238,13 +238,10 @@ fn parse_commit_keyword<'a>(repo: RepoRef<'a>, pair: Pair<Rule>) -> (Property<'a
         "author" => Property::Signature(Box::new(AuthorProperty)),
         "committer" => Property::Signature(Box::new(CommitterProperty)),
         "open" => Property::Boolean(Box::new(OpenProperty)),
-        "abandoned" => Property::Boolean(Box::new(PrunedProperty)),
         "current_checkout" => Property::Boolean(Box::new(CurrentCheckoutProperty { repo })),
         "branches" => Property::String(Box::new(BranchProperty { repo })),
         "tags" => Property::String(Box::new(TagProperty { repo })),
         "git_refs" => Property::String(Box::new(GitRefsProperty { repo })),
-        "obsolete" => Property::Boolean(Box::new(ObsoleteProperty { repo })),
-        "orphan" => Property::Boolean(Box::new(OrphanProperty { repo })),
         "divergent" => Property::Boolean(Box::new(DivergentProperty { repo })),
         "conflict" => Property::Boolean(Box::new(ConflictProperty)),
         name => panic!("unexpected identifier: {}", name),

src/templater.rs

@@ -202,14 +202,6 @@ impl<'r> TemplateProperty<Commit, bool> for OpenProperty {
     }
 }
 
-pub struct PrunedProperty;
-
-impl TemplateProperty<Commit, bool> for PrunedProperty {
-    fn extract(&self, context: &Commit) -> bool {
-        context.is_pruned()
-    }
-}
-
 pub struct CurrentCheckoutProperty<'a> {
     pub repo: RepoRef<'a>,
 }
@@ -294,26 +286,6 @@ impl TemplateProperty<Commit, String> for GitRefsProperty<'_> {
     }
 }
 
-pub struct ObsoleteProperty<'a> {
-    pub repo: RepoRef<'a>,
-}
-
-impl TemplateProperty<Commit, bool> for ObsoleteProperty<'_> {
-    fn extract(&self, context: &Commit) -> bool {
-        self.repo.evolution().is_obsolete(context.id())
-    }
-}
-
-pub struct OrphanProperty<'a> {
-    pub repo: RepoRef<'a>,
-}
-
-impl TemplateProperty<Commit, bool> for OrphanProperty<'_> {
-    fn extract(&self, context: &Commit) -> bool {
-        self.repo.evolution().is_orphan(context.id())
-    }
-}
-
 pub struct DivergentProperty<'a> {
     pub repo: RepoRef<'a>,
 }