[Libguestfs] [PATCH 2/2] builder: allow a specific template for --list
Allow the user to specify a template in --list mode, which will be the
only result in the resulting output (instead of all the available
templates).
This makes it easier to find out the details of a specific template.
---
builder/builder.ml | 6 ++++++
builder/cmdline.ml | 3 ++-
builder/virt-builder.pod | 13 +++++++------
3 files changed, 15 insertions(+), 7 deletions(-)
diff --git a/builder/builder.ml b/builder/builder.ml
index ec9919f..1f9a472 100644
--- a/builder/builder.ml
+++ b/builder/builder.ml
@@ -213,6 +213,12 @@ let main () =
let mode =
match mode with
| `List -> (* --list *)
+ let sources, index =
+ match cmdline.arg with
+ | "" -> sources, index (* no template -> all the available ones
*)
+ | arg -> (* just the specified template *)
+ let item = selected_cli_item cmdline index in
+ [], [item] in
List_entries.list_entries ~list_format:cmdline.list_format ~sources index;
exit 0
diff --git a/builder/cmdline.ml b/builder/cmdline.ml
index a077289..f872bd4 100644
--- a/builder/cmdline.ml
+++ b/builder/cmdline.ml
@@ -239,9 +239,10 @@ read the man page virt-builder(1).
if format <> None then
error (f_"--list: use '--list-format', not
'--format'");
(match args with
+ | [arg] -> arg
| [] -> ""
| _ ->
- error (f_"--list option does not need any extra arguments")
+ error (f_"too many parameters, at most one 'os-version' is allowed
for --list")
)
| `Notes ->
(match args with
diff --git a/builder/virt-builder.pod b/builder/virt-builder.pod
index 545b134..9a49138 100644
--- a/builder/virt-builder.pod
+++ b/builder/virt-builder.pod
@@ -16,7 +16,7 @@ virt-builder - Build virtual machine images quickly
[--arch ARCHITECTURE] [--attach ISOFILE]
__CUSTOMIZE_SYNOPSIS__
- virt-builder -l|--list [--long] [--list-format short|long|json]
+ virt-builder -l|--list [--long] [--list-format short|long|json] [os-version]
virt-builder --notes os-version
@@ -311,15 +311,16 @@ alternate home directory:
virt-builder --gpg "gpg --homedir /tmp" [...]
-=item B<-l>
+=item B<-l> [os-version]
-=item B<--list>
+=item B<--list> [os-version]
-=item B<--list --list-format> format
+=item B<--list --list-format> format [os-version]
-=item B<--list --long>
+=item B<--list --long> [os-version]
-List available templates.
+List all the available templates if no guest is specified, or only for the
+specified one.
It is possible to choose with I<--list-format> the output format for the list
templates:
--
2.5.0