Glean Parser
Parser tools for Mozilla's Glean telemetry.
Features
Contains various utilities for handling metrics.yaml
and pings.yaml
for the
Glean SDKs. This includes producing generated
code for various integrations, linting and coverage testing.
Documentation
Requirements
The following library requirements are installed automatically when
glean_parser
is installed by pip
.
- appdirs
- Click
- diskcache
- Jinja2
- jsonschema
- PyYAML
Usage
$ glean_parser --help
Read in metrics.yaml
, translate to Kotlin format, and
output to output_dir
:
$ glean_parser translate -o output_dir -f kotlin metrics.yaml
Check a Glean ping against the ping schema:
$ glean_parser check < ping.json
Changelog
Unreleased
11.0.0
- Add updated logging logic for Ruby Server (#642)
- Add support for event metric type in server-side JavaScript outputter (DENG-1736)
- BREAKING CHANGE: Dropped support for Python 3.7 (#638)
- Add official support for Python 3.11+ (#638)
10.0.3
- Warn about empty or TODO-tagged data reviews in the list (#634)
- Allow
unit
field on all metrics, but warn for all but quantity and custom distribution (#636)
10.0.2
- Allow
unit
field for string again, but warn about it in the linter (#634)
10.0.1
- Allow
unit
field for custom distribution again (#633)
10.0.0
- Add Ruby log outputter (
ruby_server
) (#620)
- BREAKING CHANE:
ping
lifetime metrics on the events ping are now disallowed (#625)
- Disallow
unit
field for anything but quantity (#630).
Note that this was already considered the case, now the code enforces it.
9.0.0
- BREAKING CHANGE: Dropped support for Python 3.6 (#615)
- Allow metadata to configure precise timestamps in pings (#592)
8.1.1
- Small updates to the
javascript_server
tempalte to address lint warnings (#598)
8.1.0
- Increased the maximum metric name length in version 2.0.0 schema (#596)
8.0.0
- BREAKING CHANGE: Remove exposed
lint_yaml_files
function (#580)
- Rust: Removed
__glean_metric_maps
from the Rust Jinja template. This functionality is better placed downstream (Bug 1816526)
- New lint: check that all referenced pings are known (#584)
- Add experimental server-side JavaScript outputter (FXA-7922)
7.2.1
- Unbreak last minor release (#579)
7.2.0
- Remove yamllint integration (#578)
7.1.0
- ENHANCEMENT: Labels in
labels:
fields may now contain any printable ASCII characters (bug 1672273)
- BUGFIX: Enforce ordering of generation of Pings, Metrics and Tags such that order is deterministic (bug 1820334)
7.0.0
- BUGFIX: Remove internal-only fields from serialized metrics data (#550)
- FEATURE: New subcommand:
dump
to dump the metrics data as JSON (#550)
- BUGFIX: Kotlin: Generate enums with the right generic bound for ping reason codes (#551).
- BREAKING CHANGE: Fully remove support for the old events API (#549)
Adds a new lint
OLD_EVENT_API
to warn about missing type
attributes on event extra keys.
Note that the Glean SDK already dropped support for the old events API.
6.4.0
- BUGFIX: Correct code generation for labeled metrics in Rust (#533)
- BUGFIX: Correctly serialize
Rates
for Rust code (#530)
- Feature: Wrap labeled metric's static labels list as CoW strings (requires updated Glean support) (#534)
6.3.0
6.2.1
- Add support for Rate, Denominator and Numerator metrics for JavaScript. (bug 1793777)
6.2.0
- [data-review] Use a template to generate the Data Review Request template (bug 1772605)
- Make tag and no_lint order deterministic (#518)
6.1.2
- Swift: Add a conditional
import Foundation
to support generating metrics when Glean is delivered via the AppServices iOS megazord
6.1.1
- Rust: Use correct name for a ping in generated code.
6.1.0
- [data-review] Include extra keys' names and descriptions in data review template (bug 1767027)
- Raise limit on number of statically-defined labels to 4096. (bug 1772163)
- Fix Rust code generation for new UniFFI interface (#491, #494, #495)
6.0.1
- Relax version requirement for MarkupSafe.
Now works with MarkupSafe v1.1.1 to v2.0.1 inclusive again.
6.0.0
- BUGFIX: Add missing
extra_args
to Rust constructor generation (bug 1765855)
- Breaking change:
glean_parser
now generates metrics compatible with the UniFFI-powered Glean SDK.
This is not backwards-compatible with previous versions.
- Generate Rate, Denominator and Numerator metrics for Kotlin and Swift
- Explicitly skip Rate, Denominator and Numerator metrics for JavaScript.
These will cause a build failure by default, but can be turned into warnings on request.
Use
-s fail_rates=false
to enable warning-only mode.
5.1.2
- BUGFIX: Revert changes made on v5.1.1.
- The issues addressed by those changes, were non-issues and result of misuse of the APIs.
5.1.1
- BUGFIX: Fix issues with Swift templates (bug 1749494)
- Make metrics and pings all
public
- Make pings
static
5.1.0
- Add support for build info generation for JavaScript and Typescript targets (bug 1749494)
5.0.1
- Fix the logic for the metric expiration by version (bug 1753194)
5.0.0
- Remove C# support (#436).
- Add support for Rust code generation (bug 1677434)
- Report an error if no files are passed (bug 1751730)
- [data-review] Report an error if no metrics match provided bug number (bug 1752576)
- [data-review] Include notification_emails in list of those responsible (bug 1752576)
- Add support for expiring metrics by the provided major version (bug 1753194)
4.4.0
-
Support global file-level tags in metrics.yaml (bug 1745283)
-
Glinter: Reject metric files if they use unit
by mistake. It should be time_unit
(#432).
-
Automatically generate a build date when generating build info (#431).
Enabled for Kotlin and Swift.
This can be changed with the build_date
command line option.
build_date=0
will use a static unix epoch time.
build_date=2022-01-03T17:30:00
will parse the ISO8601 string to use (as a UTC timestamp).
Other values will throw an error.
Example:
glean_parser translate --format kotlin --option build_date=2021-11-01T01:00:00 path/to/metrics.yaml
4.3.1
- BUGFIX: Skip tags for code generation (#409)
4.3.0
4.2.0
- Improve the schema validation error messages. They will no longer include
OrderedDict(...)
on Python 3.7 and later (bug 1733395)
- Officially support Python 3.10
4.1.1 (2021-09-28)
- Update private import paths on Javascript / Typescript templates. (bug 1702468)
4.1.0 (2021-09-16)
- Add support for Node.js platform on Javascript / Typescript templates. (bug 1728982)
4.0.0 (2021-08-20)
- Add support for Text metric type (#374)
- Reserve the
default
ping name. It can't be used as a ping name, but it can be used in send_in_pings
(#376)
3.8.0 (2021-08-18)
- Expose ping reasons enum on JavaScript / TypeScript templates. (bug 1719136)
- Define an interface with the allowed extras for each event on the TypeScript template. (bug 1693487)
3.7.0 (2021-07-13)
- New lint: Check for redundant words in ping names (#355)
- Add support for URL metric type (#361)
3.6.0 (2021-06-11)
- Add a command
data-review
to generate a skeleton Data Review Request for all metrics matching a supplied bug number. (bug 1704541)
- Enable custom distribution outside of GeckoView (
gecko_datapoint
becomes optional)
3.5.0 (2021-06-03)
- Transform generated folder into QML Module when building Javascript templates for the Qt platform. (bug 1707896
- Import the Glean QML module from inside each generated file, removing the requirement to import Glean before importing any of the generated files;
- Prodive a
qmldir
file exposing all generated files;
- Drop the
namespace
option for Javascript templates;
- Add a new
version
option for Javascript templates, required when building for Qt, which expected the Glean QML module version.
3.4.0 (2021-05-28)
- Add missing import for Kotlin code (#339)
- Use a plain Kotlin type in the generated interface implementation (#339)
- Generate additional generics for event metrics (#339)
- For Kotlin skip generating
GleanBuildInfo.kt
when requested (with with_buildinfo=false
) (#341)
3.3.2 (2021-05-18)
- Fix another bug in the Swift code generation when generating extra keys (#334)
3.3.1 (2021-05-18)
- Fix Swift code generation bug for pings (#333)
3.3.0 (2021-05-18)
- Generate new event API construct (#321)
3.2.0 (2021-04-28)
- Add option to add extra introductory text to generated markdown (#298)
- Add support for Qt in Javascript templates (bug 1706252)
- Javascript templates will now accept the
platform
option. If this option is set to qt
the generated templates will be Qt compatible. Default value is webext
.
3.1.2 (2021-04-21)
- BUGFIX: Remove the "DO NOT COMMIT" notice from the documentation.
3.1.1 (2021-04-19)
- Recommend to not commit as well as to not edit the generated files. (bug 1706042)
- BUGFIX: Include import statement for labeled metric subtypes in Javascript and Typescript templates.
3.1.0 (2021-04-16)
- Add support for labeled metric types in Javascript and Typescript templates.
3.0.0 (2021-04-13)
- Raise limit on number of statically-defined lables to 100. (bug 1702263)
- BUGFIX: Version 2.0.0 of the schema now allows the "special"
glean_.*
ping names for Glean-internal use again.
- Remove support for JWE metric types.
2.5.0 (2021-02-23)
- Add parser and object model support for
rate
metric type. (bug 1645166)
- Add parser and object model support for telemetry_mirror property. (bug 1685406)
- Update the Javascript template to match Glean.js expectations. (bug 1693516)
- Glean.js has updated it's export strategy. It will now export each metric type as an independent module;
- Glean.js has dropped support for non ES6 modules.
- Add support for generating Typescript code. (bug 1692157)
- The templates added generate metrics and pings code for Glean.js.
2.4.0 (2021-02-18)
- Experimental:
glean_parser
has a new subcommand coverage
to convert raw coverage reports
into something consumable by coverage tools, such as codecov.io
- The path to the file that each metric is defined in is now stored on the
Metric
object in defined_in["filepath"]
.
2.3.0 (2021-02-17)
- Leverage the
glean_namespace
to provide correct import when building for Javascript.
2.2.0 (2021-02-11)
- The Kotlin generator now generates static build information that can be passed
into
Glean.initialize
to avoid calling the package manager at runtime.
2.1.0 (2021-02-10)
- Add support for generating Javascript code.
- The templates added generate metrics and pings code for Glean.js.
2.0.0 (2021-02-05)
-
New versions 2.0.0 of the metrics.yaml
and pings.yaml
schemas now ship
with glean_parser
. These schemas are different from version 1.0.0 in the
following ways:
- Bugs must be specified as URLs. Bug numbers are disallowed.
- The legacy ping names containing underscores are no longer allowed. These
included
deletion_request
, bookmarks_sync
, history_sync
,
session_end
, all_pings
, glean_*
). In these cases, the _
should be
replaced with -
.
To upgrade your app or library to use the new schema, replace the version in
the $schema
value with 2-0-0
.
-
Breaking change: It is now an error to use bug numbers (rather than URLs)
in ping definitions.
-
Add the line number that metrics and pings were originally defined in the yaml
files.
1.29.1 (2020-12-17)
- BUGFIX: Linter output can now be redirected correctly (1675771).
1.29.0 (2020-10-07)
- Breaking change:
glean_parser
will now return an error code when any of
the input files do not exist (unless the --allow-missing-files
flag is
passed).
- Generated code now includes a comment next to each metric containing the name
of the metric in its original
snake_case
form.
- When metrics don't provide a
unit
parameter, it is not included in the
output (as provided by probe-scraper).
1.28.6 (2020-09-24)
- BUGFIX: Ensure Kotlin arguments are deterministically ordered
1.28.5 (2020-09-14)
- Fix deploy step to update pip before deploying to pypi.
1.28.4 (2020-09-14)
- The
SUPERFLUOUS_NO_LINT
warning has been removed from the glinter.
It likely did more harm than good, and makes it hard to make
metrics.yaml
files that pass across different versions of
glean_parser
.
- Expired metrics will now produce a linter warning,
EXPIRED_METRIC
.
- Expiry dates that are more than 730 days (~2 years) in the future
will produce a linter warning,
EXPIRATION_DATE_TOO_FAR
.
- Allow using the Quantity metric type outside of Gecko.
- New parser configs
custom_is_expired
and custom_validate_expires
added. These are both functions that take the expires
value of the
metric and return a bool. (See Metric.is_expired
and
Metric.validate_expires
). These will allow FOG to provide custom
validation for its version-based expires
values.
1.28.3 (2020-07-28)
- BUGFIX: Support HashSet and Dictionary in the C## generated code.
1.28.2 (2020-07-28)
- BUGFIX: Generate valid C## code when using Labeled metric types.
1.28.1 (2020-07-24)
- BUGFIX: Add missing column to correctly render markdown tables in generated
documentation.
1.28.0 (2020-07-23)
- Breaking change: The internal ping
deletion-request
was misnamed in
pings.py causing the linter to not allow use of the correctly named ping for
adding legacy ids to. Consuming apps will need to update their metrics.yaml if
they are using deletion_request
in any send_in_pings
to deletion-request
after updating.
1.27.0 (2020-07-21)
- Rename the
data_category
field to data_sensitivity
to be clearer.
1.26.0 (2020-07-21)
- Add support for JWE metric types.
- Add a
data_sensitivity
field to all metrics for specifying the type of data
collected in the field.
1.25.0 (2020-07-17)
- Add support for generating C## code.
- BUGFIX: The memory unit is now correctly passed to the MemoryDistribution
metric type in Swift.
1.24.0 (2020-06-30)
- BUGFIX: look for metrics in send_if_empty pings. Metrics for these kinds of
pings were being ignored.
1.23.0 (2020-06-27)
- Support for Python 3.5 has been dropped.
- BUGFIX: The ordering of event extra keys will now match with their enum,
fixing a serious bug where keys of extras may not match the correct values in
the data payload. See https://bugzilla.mozilla.org/show_bug.cgi?id=1648768.
1.22.0 (2020-05-28)
- Breaking change: (Swift only) Combine all metrics and pings into a single
generated file
Metrics.swift
.
1.21.0 (2020-05-25)
glinter
messages have been improved with more details and to be more
actionable.
- A maximum of 10
extra_keys
is now enforced for event
metric types.
- BUGFIX: the
Lifetime
enum values now match the values of the implementation
in mozilla/glean.
1.20.4 (2020-05-07)
- BUGFIX: yamllint errors are now reported using the correct file name.
1.20.3 (2020-05-06)
- Support for using
timing_distribution
's time_unit
parameter to control
the range of acceptable values is documented. The default unit for this use
case is nanosecond
to avoid creating a breaking change. See bug
1630997 for more
information.
1.20.2 (2020-04-24)
- Dependencies that depend on the version of Python being used are now specified
using the Declaring platform specific dependencies syntax in
setuptools.
This means that more recent versions of dependencies are likely to be
installed on Python 3.6 and later, and unnecessary backport libraries won't
be installed on more recent Python versions.
1.20.1 (2020-04-21)
- The minimum version of the runtime dependencies has been lowered to increase
compatibility with other tools. These minimum versions are now tested in CI,
in addition to testing the latest versions of the dependencies that was
already happening in CI.
1.20.0 (2020-04-15)
- Breaking change: glinter errors found during the
translate
command will
now return an error code. glinter warnings will be displayed, but not return
an error code.
glean_parser
now produces a linter warning when user
lifetime metrics are
set to expire. See bug
1604854 for additional
context.
1.19.0 (2020-03-18)
- Breaking change: The regular expression used to validate labels is
stricter and more correct.
- Add more information about pings to markdown documentation:
- State whether the ping includes client id;
- Add list of data review links;
- Add list of related bugs links.
glean_parser
now makes it easier to write external translation
functions for different language targets.
- BUGFIX:
glean_parser
now works on 32-bit Windows.
1.18.3 (2020-02-24)
- Dropped the
inflection
dependency.
- Constrained the
zipp
and MarkupSafe
transitive dependencies to versions
that support Python 3.5.
1.18.2 (2020-02-14)
- BUGFIX: Fix rendering of first element of reason list.
1.18.1 (2020-02-14)
- BUGFIX: Reason codes are displayed in markdown output for built-in
pings as well.
- BUGFIX: Reason descriptions are indented correctly in markdown
output.
- BUGFIX: To avoid a compiler error, the
@JvmName
annotation isn't
added to private members.
1.18.0 (2020-02-13)
- Breaking Change (Java API) Have the metrics names in Java match the names
in Kotlin. See Bug
1588060.
- The reasons a ping are sent are now included in the generated markdown
documentation.
1.17.3 (2020-02-05)
- BUGFIX: The version of Jinja2 now specifies < 3.0, since that version no
longer supports Python 3.5.
1.17.2 (2020-02-05)
- BUGFIX: Fixes an import error in generated Kotlin code.
1.17.1 (2020-02-05)
- BUGFIX: Generated Swift code now includes
import Glean
, unless generating
for a Glean-internal build.
1.17.0 (2020-02-03)
- Remove default schema URL from
validate_ping
- Make
schema
argument required for CLI
- BUGFIX: Avoid default import in Swift code for Glean itself
- BUGFIX: Restore order of fields in generated Swift code
1.16.0 (2020-01-15)
- Support for
reason
codes on pings was added.
1.15.6 (2020-02-06)
- BUGFIX: The version of Jinja2 now specifies < 3.0, since that version no
longer supports Python 3.5 (backported from 1.17.3).
1.15.5 (2019-12-19)
- BUGFIX: Also allow the legacy name
all_pings
for send_in_pings
parameter
on metrics
1.15.4 (2019-12-19)
- BUGFIX: Also allow the legacy name
all_pings
1.15.3 (2019-12-13)
- Add project title to markdown template.
- Remove "Sorry about that" from markdown template.
- BUGFIX: Replace dashes in variable names to force proper naming
1.15.2 (2019-12-12)
- BUGFIX: Use a pure Python library for iso8601 so there is no compilation
required.
1.15.1 (2019-12-12)
- BUGFIX: Add some additional ping names to the non-kebab-case allow list.
1.15.0 (2019-12-12)
- Restrict new pings names to be kebab-case and change
all_pings
to
all-pings
1.14.0 (2019-12-06)
glean_parser
now supports Python versions 3.5, 3.6, 3.7 and 3.8.
1.13.0 (2019-12-04)
- The
translate
command will no longer clear extra files in the output
directory.
- BUGFIX: Ensure all newlines in comments are prefixed with comment markers
- BUGFIX: Escape Swift keywords in variable names in generated code
- Generate documentation for pings that are sent if empty
1.12.0 (2019-11-27)
- Reserve the
deletion_request
ping name
- Added a new flag
send_if_empty
for pings
1.11.0 (2019-11-13)
- The
glinter
command now performs yamllint
validation on registry files.
1.10.0 (2019-11-11)
- The Kotlin linter
detekt
is now run during CI, and for local
testing if installed.
- Python 3.8 is now tested in CI (in addition to Python 3.7). Using
tox
for this doesn't work in modern versions of CircleCI, so the
tox
configuration has been removed.
yamllint
has been added to test the YAML files on CI.
- ⚠ Metric types that don't yet have implementations in glean-core
have been removed. This includes
enumeration
, rate
, usage
, and
use_counter
, as well as many labeled metrics that don't exist.
1.9.5 (2019-10-22)
- Allow a Swift lint for generated code
- New lint: Restrict what metric can go into the
baseline
ping
- New lint: Warn for slight misspellings in ping names
- BUGFIX: change Labeled types labels from lists to sets.
1.9.4 (2019-10-16)
- Use lists instead of sets in Labeled types labels to ensure that the order of
the labels passed to the
metrics.yaml
is kept.
glinter
will now check for duplicate labels and error if there are any.
1.9.3 (2019-10-09)
- Add labels from Labeled types to the Extra column in the Markdown template.
1.9.2 (2019-10-08)
- BUGFIX: Don't call
is_internal_metric
on Ping
objects.
1.9.1 (2019-10-07)
- Don't include Glean internal metrics in the generated markdown.
1.9.0 (2019-10-04)
- Glinter now warns when bug numbers (rather than URLs) are used.
- BUGFIX: add
HistogramType
and MemoryUnit
imports in Kotlin generated code.
1.8.4 (2019-10-02)
- Removed unsupported labeled metric types.
1.8.3 (2019-10-02)
- Fix indentation for generated Swift code
1.8.2 (2019-10-01)
- Created labeled metrics and events in Swift code and wrap it in a
configured namespace
1.8.1 (2019-09-27)
- BUGFIX:
memory_unit
is now passed to the Kotlin generator.
1.8.0 (2019-09-26)
- A new parser config,
do_not_disable_expired
, was added to turn off the
feature that expired metrics are automatically disabled. This is useful if you
want to retain the disabled value that is explicitly in the metrics.yaml
file.
glinter
will now report about superfluous no_lint
entries.
1.7.0 (2019-09-24)
- A
glinter
tool is now included to find common mistakes in metric naming
and setup. This check is run during translate
and warnings will be
displayed. ⚠ These warnings will be treated as errors in a future revision.
1.6.1 (2019-09-17)
- BUGFIX:
GleanGeckoMetricsMapping
must include LabeledMetricType
and CounterMetricType
.
1.6.0 (2019-09-17)
- NEW: Support for outputting metrics in Swift.
- BUGFIX: Provides a helpful error message when
geckoview_datapoint
is used on
an metric type that doesn't support GeckoView exfiltration.
- Generate a lookup table for Gecko categorical histograms in
GleanGeckoMetricsMapping
.
- Introduce a 'Swift' output generator.
1.4.1 (2019-08-28)
1.4.0 (2019-08-27)
- Added support for generating markdown documentation from
metrics.yaml
files.
1.3.0 (2019-08-22)
quantity
metric type has been added.
1.2.1 (2019-08-13)
- BUGFIX:
includeClientId
was not being output for PingType.
1.2.0 (2019-08-13)
memory_distribution
metric type has been added.
custom_distribution
metric type has been added.
labeled_timespan
is no longer an allowed metric type.
1.1.0 (2019-08-05)
- Add a special
all_pings
value to send_in_pings
.
1.0.0 (2019-07-29)
- First release to start following strict semver.
0.1.0 (2018-10-15)