diff options
| author |  Austin Clements <amdragon@MIT.EDU> | 2012-12-15 22:17:23 -0500 |
|---|---|---|
| committer |  David Bremner <bremner@debian.org> | 2012-12-16 17:20:33 -0400 |
| commit | 1c6195b9e35e511e115f94b45d97aa58ee41b307 (patch) | |
| tree | b51eed0180afeb9d78523436841262a9f2795492 /devel | |
| parent | 1e12b91b3cf823d21f7edf8c0f1c687df56fec14 (diff) | |
cli: Framework for structured output versioning
Currently there is a period of pain whenever we make
backward-incompatible changes to the structured output format, which
discourages not only backward-incompatible improvements to the format,
but also backwards-compatible additions that may not be "perfect". In
the end, these problems limit experimentation and innovation.
This series of patches introduces a way for CLI callers to request a
specific format version on the command line and to determine if the
CLI does not supported the requested version (and perhaps present a
useful diagnostic to the user). Since the caller requests a format
version, it's also possible for the CLI to support multiple
incompatible versions simultaneously, unlike the alternate approach of
including version information in the output.
This patch lays the groundwork by introducing a versioning convention,
standard exit codes, and a utility function to check the requested
version and produce standardized diagnostic messages and exit
statuses.
Diffstat (limited to 'devel')
| -rw-r--r-- | devel/schemata | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/devel/schemata b/devel/schemata index d1ab983a..292f2876 100644 --- a/devel/schemata +++ b/devel/schemata @@ -14,6 +14,8 @@ are interleaved. Keys are printed as keywords (symbols preceded by a colon), e.g. (:id "123" :time 54321 :from "foobar"). Null is printed as nil, true as t and false as nil. +This is version 1 of the structured output format. + Common non-terminals -------------------- |