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

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. Thanks, 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 | 15 +- 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 | 69 +++++++ v2v/var_expander.mli | 82 ++++++++ v2v/var_expander_tests.ml | 103 ++++++++++ v2v/virt-v2v-output-local.pod | 50 +++++ v2v/virt-v2v.pod | 15 +- 17 files changed, 937 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