New command: Show

2 files changed, 49 insertions, 15 deletions

diff --git a/lesana/command.py b/lesana/command.py
index dbad2d2..16d38f3 100644
--- a/lesana/command.py
+++ b/lesana/command.py
@@ -65,6 +65,21 @@ class Command():
         self.args = args
         self.main()
 
+    def get_template_renderer(self, template_fname):
+        env = jinja2.Environment(
+            loader=jinja2.FileSystemLoader(
+                searchpath='.',
+                followlinks=True,
+                ),
+            # TODO: add autoescaping settings
+            )
+        try:
+            template = env.get_template(template_fname)
+        except jinja2.exceptions.TemplateNotFound as e:
+            logging.error("Could not find template: {}".format(e))
+            sys.exit(1)
+        return template
+
 
 class New(Command):
     arguments = [
@@ -129,6 +144,36 @@ class Edit(Command):
         print(entry)
 
 
+class Show(Command):
+    arguments = [
+        (['--collection', '-c'], dict(
+            help='The collection to work on (default .)'
+            )),
+        (['--template', '-t'], dict(
+            help='Template to use when displaying results',
+            )),
+        (['uid'], dict(
+            help='uid of an entry to edit',
+            )),
+        ]
+
+    def main(self):
+        collection = Collection(self.args.collection)
+        entries = collection.entries_from_short_uid(self.args.uid)
+        if len(entries) > 1:
+            return "{} is not an unique uid".format(self.args.uid)
+        if not entries:
+            return "Could not find an entry with uid starting with: {}".format(
+                self.args.uid
+                )
+        entry = entries[0]
+        if self.args.template:
+            template = self.get_template_renderer(self.args.template)
+            print(template.render(entry=entry))
+        else:
+            print(entry.yaml_data)
+
+
 class Index(Command):
     arguments = [
         (['--collection', '-c'], dict(
@@ -201,20 +246,8 @@ class Search(Command):
                     offset,
                     pagesize)
         if self.args.template:
-            env = jinja2.Environment(
-                loader=jinja2.FileSystemLoader(
-                    searchpath='.',
-                    followlinks=True,
-                    ),
-                # TODO: add autoescaping settings
-                )
-            try:
-                template = env.get_template(self.args.template)
-            except jinja2.exceptions.TemplateNotFound as e:
-                logging.error("Could not find template: {}".format(e))
-                sys.exit(1)
-            else:
-                print(template.render(entries=results))
+            template = self.get_template_renderer(self.args.template)
+            print(template.render(entries=results))
         else:
             for entry in results:
                 print("{entry}".format(
diff --git a/scripts/lesana b/scripts/lesana
index 713f8a7..b8b9929 100755
--- a/scripts/lesana
+++ b/scripts/lesana
@@ -2,7 +2,7 @@
 
 import argparse
 
-from lesana.command import New, Edit, Index, Search, Init, Remove
+from lesana.command import New, Edit, Show, Index, Search, Init, Remove
 
 class Lesana():
     """
@@ -12,6 +12,7 @@ class Lesana():
     commands = (
         ('new', New()),
         ('edit', Edit()),
+        ('show', Show()),
         ('index', Index()),
         ('search', Search()),
         ('init', Init()),