[Libguestfs] [PATCH v2 0/3] v2v: add -o json output mode

[Pino Toscano]

This series adds a new output mode for virt-v2v, called -o json.
It produces local files, just like -o local, although the metadata
produced is a JSON file with data that v2v collected in the conversion
process.  This can be useful for converting to unsupported destinations,
still based on QEMU/KVM.

In addition to a simple different metadata, it offers a way to relocate
the disks, with %{...}-like variables (only 3 added ATM, more can be
added) to change their paths depending on data of the guest/disks.

Changes from v1:
- remove extra code for optional named parameters in pcre_tests.ml
- allow %-escaping of variables in Var_expander

Pino Toscano (3):
  common/mlpcre: add offset flag for PCRE.matches
  v2v: add Var_expander
  v2v: add -o json output mode

 .gitignore                    |   1 +
 common/mlpcre/PCRE.ml         |   2 +-
 common/mlpcre/PCRE.mli        |   5 +-
 common/mlpcre/pcre-c.c        |  16 +-
 common/mlpcre/pcre_tests.ml   |  11 +-
 v2v/Makefile.am               |  36 +++-
 v2v/cmdline.ml                |  29 +++
 v2v/create_json.ml            | 348 ++++++++++++++++++++++++++++++++++
 v2v/create_json.mli           |  29 +++
 v2v/dummy.c                   |   2 +
 v2v/output_json.ml            | 116 ++++++++++++
 v2v/output_json.mli           |  31 +++
 v2v/var_expander.ml           |  72 +++++++
 v2v/var_expander.mli          |  82 ++++++++
 v2v/var_expander_tests.ml     | 113 +++++++++++
 v2v/virt-v2v-output-local.pod |  55 ++++++
 v2v/virt-v2v.pod              |  15 +-
 17 files changed, 951 insertions(+), 12 deletions(-)
 create mode 100644 v2v/create_json.ml
 create mode 100644 v2v/create_json.mli
 create mode 100644 v2v/dummy.c
 create mode 100644 v2v/output_json.ml
 create mode 100644 v2v/output_json.mli
 create mode 100644 v2v/var_expander.ml
 create mode 100644 v2v/var_expander.mli
 create mode 100644 v2v/var_expander_tests.ml

-- 
2.20.1