* develop: (815 commits)
Move filetype Recommendations to the top
Update docs
Update integrations.md per review
Disable coveralls
Update coveralls
Ignore bundlephobia
Update docs
strawman extension and mime type docs
Update docs
Rename info to note
Rename "info" to "note"
Update all patch dependencies
Fix Directives Documentation
Run docs:build
Update tutorial link
Run build
Fix link to Tutorials from n00b-overview page
Correct timeline spelling
UPdated version to 10.2.3
Remove old changelog
...
Updated lintignore and move dockerfile to .dev
Fix
Updated contributing
Fixing GA
Fix contributing.md
Fixing issues after review
No need to change .eslintignore
there is no need for matching, capturing results, and validating nullablity
just using `.test` would be enough and significantly faster
for more info, see https://stackoverflow.com/10940138/16476610
* develop: (22 commits)
Update docs
Added CKEditor and GitHub Writer to available integrations.
chore(deps): update all patch dependencies
build(deps): fix broken pnpm-lock.yaml file
Mermaid version 10.2.0
Mermaid Version 10.2.0-rc.4
Label background fix
Test commit
Fix for regression error in sequenceDiagrams
Fix visibility issue for fields
fix parsing issue with class diagrams
fix: Use unicode arrows in quadrant chart axis
fix: Use unicode arrows in quadrant chart axis
fix lint command
Bump version
Back to JS with jsdoc types
Add unsupported text
Reduce changes in test
Fix deps
Fix lockfile
...
Looks like a bad merge conflict resolution broke this file,
and for some reason, the `packages/mermaid/src/vitepress` bit got
removed when releasing v10.2.0-rc.4.
Fixes: bd1343648e
Fixes: 9c12c42a26
* develop: (66 commits)
Update docs
Update docs
Improve the wording of security level values
Added quadrantChart to the side bar
Added e2e test cases with some fixes
Added documentation for the quadrantChart
Restructured the build function and addressed more review comment
Fixed some parser issue and added test cases for the parser
Fixed review comment
Update docs
Converted files to typescript and added proper types
Fix blog linting
Debug fetch-contributors
Fix lockfile
Revert "Replace esno & ts-node with tsx"
[draft] Added support for quadrant chart
Fix lockfile
Fix build
Update pnpm-lock
Replace esno & ts-node with tsx
...
Merge conflicts:
- pnpm-lock.yaml
* develop: (66 commits)
Update docs
Update docs
Improve the wording of security level values
Added quadrantChart to the side bar
Added e2e test cases with some fixes
Added documentation for the quadrantChart
Restructured the build function and addressed more review comment
Fixed some parser issue and added test cases for the parser
Fixed review comment
Update docs
Converted files to typescript and added proper types
Fix blog linting
Debug fetch-contributors
Fix lockfile
Revert "Replace esno & ts-node with tsx"
[draft] Added support for quadrant chart
Fix lockfile
Fix build
Update pnpm-lock
Replace esno & ts-node with tsx
...
- The current wording can be misinterpreted because, for some people
'tags' might not be associated with HTML tags.
- Improve the wording to make it clear that HTML tags are intended.
This adds the projects `mermaid-isomorphic`, `rehype-mermaidjs`, and
`gatsby-remark-mermaid` to the integrations page.
This also removes `remark-mermaid`. This project is outdated and
unmaintained.
The classDiagramGrammer.spec.ts unit test had some bad filepath
manipulation that fails on UNIX platforms.
Instead, we can use the recommended method from the Node.JS
documentation, see https://nodejs.org/api/esm.html#importmetaurl.
Fixes: 221640aa25
* develop: (237 commits)
submit built docs
update Font Awesome Version
Clarify FontAwesome support
Update version
Fix classParser
Check for conflict when linting jison
Update class grammar test
fix Class diagram grammar
Skip sourcemap
Bump version
Update deps
Fix unit tests
Update vite
Fix applitools cypress
Update packages/mermaid/package.json
chore(deps): update dependency typescript to v5
fix typedoc
fix(deps): update all minor dependencies
chore(deps): update pnpm to v8
chore(deps): update fregante/setup-git-user action to v2
...
* develop: (33 commits)
Update version
Fix classParser
Check for conflict when linting jison
Update class grammar test
fix Class diagram grammar
Skip sourcemap
Bump version
Update deps
Fix unit tests
Update vite
Fix applitools cypress
Update packages/mermaid/package.json
chore(deps): update dependency typescript to v5
fix typedoc
fix(deps): update all minor dependencies
chore(deps): update pnpm to v8
chore(deps): update fregante/setup-git-user action to v2
fix(deps): update all minor dependencies
chore(deps): update dependency start-server-and-test to v2
chore(deps): update dependency rimraf to v5
...
* 'renovate/all-minor' of https://github.com/mermaid-js/mermaid:
fix(deps): update all minor dependencies
chore(deps): update pnpm to v8
chore(deps): update fregante/setup-git-user action to v2
Test that `src/diagrams/*/styles.ts` module returns a valid
CSS stylesheet that can be parsed via [stylis][1] and then
becomes a valid CSS that [csstree-validator][2] validates.
We test this for every diagram and for every theme, because
many of the invalid CSS bugs are caused by missing theme vars.
There are some CSS errors that I couldn't easily fix, so I've written
the tests to ignore the following CSS errors:
- 'Unknown property `rx`' (Valid in SVG2 draft and in some browsers)
- 'Unknown property `ry`' (Valid in SVG2 draft and in some browsers)
- 'Unknown property `dy`'
- This doesn't seem to be valid CSS in any SVG version, but maybe
some browsers support it 🤷 I feel like we should probably change
this though.
[1]: https://github.com/thysultan/stylis
[2]: https://github.com/csstree/validator
The `scaleLabelColor` variable in `theme-forest` and `theme-neutral`
was set to `"calculated"`, as it defaults to `this.labelTextColor`
**before** `this.labelTextColor` was set.
Moving the `this.labelTextColor` assignments before `scaleLabelColor`
is calculated fixes this.
Fixes mindmap and timeline invalid CSS in theme forest and neutral.
Define `excludeBkgColor` for `theme-dark` to fix invalid CSS
for gantt diagrams.
All the other themes defined this to '#eeeeee', but I thought that
was a bit too bright in a dark theme, so instead I set it to
`darken(this.sectionBkgColor, 10);`.
`border2` is a theme variable used by the CSS for flowcharts and
user-journey.
I've defined this to default to `tertiaryBorderColor` in theme-base,
as other themes tend to set `border2` to the same value as
`clusterBorder`, which in theme-base is `tertiaryBorderColor`.
Define `arrowheadColor` as `invert(this.background)` in
`theme-base.js`, as it's currently `undefined`, which causes CSS
issues when using `theme-base`.
I've picked `invert(this.background)` so that it matches
the default value of `lineColor`.
Currently, `requirementBorderSize` defaults to `primaryBorderColor`,
which is a color, not a valid SVG `stroke-width`.
Instead, I've made it default to `1`.
Fix an invalid value for the CSS `fill-opacity` value.
Percentage values for `fill-opacity` are only supported in the SVG 2.0
draft, so according to [MDN][1]:
> it is not widely supported yet, […] as a consequence, it is best
> practices [sic] to set opacity with a value in the range `[0-1]`.
[1]: https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/fill-opacity
The current `personBorder`/`personBkg` theme variables for C4 diagrams
are set to the string `'calculated'`.
However, despite being `'calculated'`, they never seem to change to
anything else, and so become invalid CSS variables.
I've instead changed these to just default to base theme vars,
as that's what they do in [`these-base.js`][1].
[1]: 727bf30824/packages/mermaid/src/themes/theme-base.js (L106-L107)
In #3938, it appears that the marker sizes for pointEnd was
unintentionally changed. This reverts the change in marker size.
It is also possible that the intention was to change the viewBox size
for both start and end, but I doubt this since it makes the arrows
significantly smaller than other markers.
* develop: (81 commits)
revert pnpm changes
doc update
auto generated from pnpm run
auto generated from pnpm run
linting
added example of Bar chart
Update docs
Adding rendering tests and unit tests
Syntax for markdown strings is a single backtick.
updated labels in the chart
Update docs
updated example data smaller
Bar chart
fix: Remove comment line completely
fix: trimStart to text
test: add space before init
fix uncaughexception in tests
fix(#4256): Keep error diagram on screen
fix(#4137): Cleanup comments before parsing
Update docs
...
Remove the `use-inline-specifiers-lockfile-format=true` pnpm option
from our `.npmrc` file.
This was added in
[PNPM version v7.7.0](https://github.com/pnpm/pnpm/releases/tag/v7.7.0)
and should make our `pnpm-lock.yaml` file much nicer,
but unfortunately, renovate doesn't seem to support it (unsure why?).
This means that whenever we do a `pnpm install` locally, the lock-file
gets changed, and whenever renovate makes a PR, it changes the
lock-file back. This causes a lot of unnecassary merge conflicts.
The `node16` module resolution requires imports to use the `.js` file
extension in type definitions.
`@rollup/plugin-typescript` is needed to make this work with the Vite
setup used by Mermaid.
The module option for Mermaid internally is set to `nodenext`. This is
needed to support `.json` imports. Note that setting `module` to
`node16` or `nodenext` implies a matching `moduleResolution` value.
The gantt diagram that were supposed to test whether
`todayMarker off` works wasn't working properly, because
`todayMarker on` wasn't working (i.e. the test never failed).
I've fixed this issue, and added a test that checks whether
`todayMarker on` works.
Fixes: https://github.com/mermaid-js/mermaid/issues/4198
* develop:
fix(deps): update all non-major dependencies
chore(deps): update all non-major dependencies
Update Diagram.ts
Update Diagram.ts
feat: added internal label
feat: improve documentation
make clearer
fix: invalid url and generate docs
Update integrations.md to include Mermaid Flow
feat: expose the diagram api
fixup! fixup! Move pie outerStrokeWidth to theme variables, update docs
fixup! Move pie outerStrokeWidth to theme variables, update docs
Move pie outerStrokeWidth to theme variables, update docs
fixup! fixup! feat(pie): adding outer border, text position options
fixup! feat(pie): adding outer border, text position options
Update packages/mermaid/src/diagrams/pie/pieRenderer.js
feat(pie): adding outer border, text position options
* master:
v10.0.2
fix: dayjs import extension
Setting version to 10.0.1
#4168 Adding the correct offset for the edges
Updated import of cytoscape for consistent behavior
Use cytoscape esm
Revert "chore: Defer elk loading"
Revert "Split cytoscape"
fix: Class with members and styles
Add a quick test that ensures `ganttDb` correctly adds `1d` (1 day),
even on days with 25 hours.
This test only runs if the test PC has the TZ='America/Los_Angeles'
set (California has daylight savings).
I've added a test to the GitHub Actions `test.yml` action too for this.
It should only add about 5 seconds to each test, so it isn't too bad.
Replace Mermaid's dependency on `moment` with `dayjs`.
[Moment is now in maintenance mode][1], and they don't recommend
using it.
[Dayjs][2] has almost exactly the same API as moment, and is still
curently being maintained. Unlike moment, dayjs objects are immutable,
which makes our life much easier, but we need to do
`a = a.add(1, "day")` instead of just `a.add(1, "day")`.
We can't use `dayjs.duration`, because unlike `moment.duration`,
[dayjs durations always degrade to ms][3].
This causes issues with daylight savings, since it assumes that each
day is 24 hours, when some days have 23/25 hours with daylight savings.
(it also assumes that each month is 30 days).
However, `dayjs.add(1, "d");` correctly adds 1 days, even when that
day is only 23 hours long, so we can use that instead.
[1]: https://momentjs.com/docs/#/-project-status/
[2]: https://day.js.org/
[3]: https://day.js.org/docs/en/durations/durations
Co-authored-by: Alois Klink <alois@aloisklink.com>
* develop: (23 commits)
Fix test
refactor(deps): replace `moment` with `dayjs`
test(gantt): test daylight savings in ganttdb
Update .lycheeignore
chore: dagre-d3-es@7.0.9
chore: Add tsdoc for registerLazyLoadedDiagrams
feat: Ensure proper detection for flowcharts
fix: Class label not visible if class is already defined
Update import
fix TS errors
fix TS errors
feat: Match timeline section width to tasks
chore: TimelineRenderer in TS
Fix types
fix: Detector order
Lint
Cleanup nodes.js
docs: Update classdiagram docs
classLabel tests
Formatting
...
Replace Mermaid's dependency on `moment` with `dayjs`.
[Moment is now in maintenance mode][1], and they don't recommend
using it.
[Dayjs][2] has almost exactly the same API as moment, and is still
curently being maintained. Unlike moment, dayjs objects are immutable,
which makes our life much easier, but we need to do
`a = a.add(1, "day")` instead of just `a.add(1, "day")`.
We can't use `dayjs.duration`, because unlike `moment.duration`,
[dayjs durations always degrade to ms][3].
This causes issues with daylight savings, since it assumes that each
day is 24 hours, when some days have 23/25 hours with daylight savings.
(it also assumes that each month is 30 days).
However, `dayjs.add(1, "d");` correctly adds 1 days, even when that
day is only 23 hours long, so we can use that instead.
[1]: https://momentjs.com/docs/#/-project-status/
[2]: https://day.js.org/
[3]: https://day.js.org/docs/en/durations/durations
Add a quick test that ensures `ganttDb` correctly adds `1d` (1 day),
even on days with 25 hours.
This test only runs if the test PC has the TZ='America/Los_Angeles'
set (California has daylight savings).
I've added a test to the GitHub Actions `test.yml` action too for this.
It should only add about 5 seconds to each test, so it isn't too bad.
* develop: (85 commits)
fix Lint
Update CHANGELOG.md
Update CHANGELOG.md
fix: fix exports
Fix readme link
Regenerate mermaid docs
Add deepdwn to cspell
Add Deepdwn to native integrations list
docs: Fix changelog
docs: v10 breaking changes
Remove `null` from diagrams before render
fix docs diagram
Updated version
Minor cleanup to trigger build.
Fix spellings
Wrap option working in test case
Fix typos
Minor cleanup
Removed the deprecated use of mindmap in Demo
Minor cleanup
...
Both render and parse are async now.
Return type of render contains svg and bindFunctions.
Parse will not throw error if parseOptions.silent is passed.
* develop:
Add highlight tag info in contributing.md
chore(deps): update dependency cypress to v12
docs: fix links
Fix types
chore(deps): update dependency vite to v4
Cache eslint in `pnpm run lint:fix`.
This was added to the `pnpm run lint` script in
b7f9495 (build: add eslint --cache file, 2022-08-27), but we
didn't add it to `pnpm run lint:fix` due to worries about cache
invalidation.
However, we switched to using `--cache-strategy content` in
b3e509b7 (build(lint): cache eslint with strategy content, 2023-02-05),
which should avoid any caching issues.
Co-authored-by: Sidharth Vinod <sidharthv96@gmail.com>
* develop: (45 commits)
Showcase section to the docs - keepings docs up to date (#4055)
bugfix: add missing d3 curves to flowchart and docs
fix(deps): update dependency dagre-d3-es to v7.0.8
build(pre-commit): cache eslint in pre-commit
build(lint): cache eslint with strategy content
Update cypress/integration/rendering/sequencediagram.spec.js
feat(er): allow leading underscore for attributes name
ci(lint): show nice error on lint failure
chore: add moment to dependencies
Update docs
Update mindmap.md
chore: remove moment-mini
docs(readme-ch): fix twitter link
build(lint): cache prettier on `pnpm run lint`
fix: moment-mini default exporter
docs(readme): update broken twitter badge
test(er): improve tests on multiple key constraints
Fixes Typo, remove console.log
doc(er): add documentation on multiple key constraints
feat(er): allow multiple constraints on attributes
...
Run eslint with `--cache` to speed up pre-commit scripts.
This was added to the `pnpm run lint` script in
b7f9495a (build: add eslint --cache file, 2022-08-27)
and doesn't seem to be causing any issues.
I haven't enabled `--cache` for `prettier` since as of prettier 2.8.0,
their cache invalidation doesn't yet work with prettier plugins.
Cache eslint using `--cache-strategy content` instead of the default
`--cache-strategy metadata`.
By default, `eslint` uses the file metadata (e.g. modification time)
to detect when the cache should be invalidated.
However, this is not efficient with `git`, since git constantly changes
the modification time,
e.g. running `git switch main && git switch original-branch` would not
change the file contents, but would change the file mtimes and force
eslint to re-lint everything.
Using the file contents is slower (~3% for me), but more resilient.
See
https://eslint.org/docs/latest/use/command-line-interface#--cache-strategy
[Prettier 2.7.0](https://prettier.io/blog/2022/06/14/2.7.0.html) added
a `--cache` CLI option to greatly speed up subsequent prettier runs.
By default, the cache is stored in
`./node_modules/.cache/prettier/.prettier-cache` and uses an `md5`
checksum of the contents as the cache-key.
On my PC, running `pnpm run lint` used to take 13.9 seconds, but now
it only takes 6 seconds.
Potential issues
----------------
Although updating Node.JS/Prettier will invalidate the cache,
updating or changing prettier plugins won't invalidate the cache.
Since we do use `prettier-plugin-jsdoc` in Mermaid, this might cause
a minor issue, but CI should catch it.
YAML front-matter is currently only used for Vitepress.
Because of that, to avoid confusion, we can remove this YAML
front-matter when converting the Markdown in packages/mermaid/src/docs
to go into the `docs/` folder for GitHub browsing.
Add the auto-generated header after any YAML front-matter blocks.
YAML front-matter is normally only valid in Markdown when it's at the
beginning of the Markdown file. GitHub/Vitepress may otherwise render
it incorrectly.
Change the `transformBlocks` function, which transforms a markdown str,
and instead making it into a
`transformMarkdownAst` function, which transforms a Markdown AST.
This means we can use the remark/unifiedjs plugin infrastructure, see
https://unifiedjs.com/learn/guide/create-a-plugin/
Vitepress uses YAML frontmatter to configure Vitepress specific
settings, see https://vitepress.vuejs.org/config/frontmatter-configs
We just need to use `remark-frontmatter` to add support for it.
GitHub also renders the YAML front-matter nicely in a table
automatically, but maybe we should instead strip it, if it's only
used by Vitepress?
* sidv/properlyWaitTests:
feat: Wait for rendering to finish before taking image snapshots
Update docs
chore(deps): update all non-major dependencies
Fix: Too many `primaryBorderColor`
vitest is throwing an error, since these types are used in
packages/mermaid/src/utils.ts, but are not being mocked.
I've added all the curve types I needed to make Vitest happy.
At some point, we may need to improve these mocks, since in d3,
they have the type CurveFactory, not string.
Fixes a semantic merge conflict due to the PRs:
- https://github.com/mermaid-js/mermaid/pull/3954
Changed `docs.mts` to use a remark object created by `remark()`
- https://github.com/mermaid-js/mermaid/pull/3946
Added test code that mocked the frozen remark object
(e.g. `remark` not `remark()`).
To fix this issue, we can mock `remark()` so that it always returns
the same remark object, which can then be used the `docs.mts` script,
as well as spied on in the `docs.spec.ts` test file.
Reported-by: Sidharth Vinod <sidharthv96@gmail.com>
The [lycheeverse/lychee-action][1] GitHub action keeps timing
out when trying to check any of the links from twitter.com
My guess is maybe Twitter has anti-bot measures active
against GitHub's CI servers.
[1]: https://github.com/lycheeverse/lychee-action
Included an example for adding a line break to notes. It seems like an issue irking a lot of (new) users
Co-authored-by: Alois Klink <alois@aloisklink.com>
Co-authored-by: Chidozie Nnachor <Chidozie.Nnachor@keylane.com>
Support using GFM in markdown documentation.
GitHub has some custom features in their Markdown documentation.
For example, they support using tables, footnotes, and task lists.
Vitepress supports tables too.
However, remark sometimes throws an error when parsing tables,
so we should use `remark-gfm` to handle them.
Pre-calculate the entity-relationship diagram namespace UUID.
This UUID is always constant, so we can pre-calculate it to save a
bit of processing power on the client.
Co-authored-by: "Ashley Engelund (weedySeaDragon @ github)" <ashley.engelund@gmail.com>
Co-authored-by: Sidharth Vinod <sidharthv96@gmail.com>
* master: (23 commits)
Update vitepress
fix: Add icon css
fix Top level await
v9.3.0
bump dagre-es 7.0.6
Bump mermaid version
Update dagre-es
Bump mermaid version
fix: Incorrect removal of existing elements
fix: add .js to external imports.
fix: add .js to external imports.
Bump mermaid version
fix: add .js to external imports.
Bump mermaid version
fix: Throw correct errors when parsing diagrams with errors
Update url snapshot test for external diagrams
Update url snapshot test for external diagrams
Updated package number
Updated package number
Updated package number to 9.3.0-rc1
...
The entity relation diagram uses uuid v4, which is randomly generated.
uuid v5 uses a SHA-1 hash, which makes the uuid deterministic.
The input strings are unique for each diagram, so this should be
okay.
* 'develop' of https://github.com/mermaid-js/mermaid: (40 commits)
lint
fix typescript error
fix(docs): build the docs
fix(docs): remove duplicate section
chore(deps): update all non-major dependencies
Update docs/misc/integrations.md
Add links to github atom add-ons
remove links from atom.io; add note Atom has been archived
set svg role to 'graphics-document document'
common function for a11y; add to renderAsync; + renderAsync spec
fix cspell
fix cspell
fix lint
refactor theming doc
remove typeof
use camelCase
make test title clearer
update /docs
add test for multi-line accDescr
use MockedD3, spies in util insertTitle spec (remove MockD3)
...
* origin/develop:
chore: Update cspell
Update docs
fix: docs build command
chore: Rebuild docs if linting fails
chore: Format Mermaid.vue
Made mermaidConfig a local variable so that it cannot be shared cross rendering.
Fixed an issue that diagrams disappear from docs pages when switching themes or reloading pages
Fixed the issue that theme-switch does not work on docs.
Get base sha from PR
Run doc lint only if files changed
Run doc lint only if files changed
Run doc lint only if files changed
split lint docs action
split lint docs action
fix: File location
fix(docs): Test auto commit
fix(docs): Test auto commit
fix(docs): Test auto commit
chore: Update docs path
chore: Auto build docs if only src/docs is changed
Adds a custom error message for any mermaid diagram that starts with
a `---`. Normally, these are expected to be part of a YAML front-matter
block, but indentation issues or a missing closing `---` may cause
these to be not parsed correctly.
Mermaid diagrams that have YAML front-matter can now be indented in
HTML code, see commit:
5cfa9196 (fix: support parsing indented mmd YAML from HTML, 2022-11-27)
Some diagrams previously had a mix of tabs/spaces for indentation.
In order for `dedent` to work, these diagrams had to be converted to
using a consistent indentation.
In order to parse the YAML front-matter in a Mermaid diagram, the
YAML seperators **MUST NOT** be indented, e.g.:
````markdown
```mermaid
---
title: This is fine.
---
```
```mermaid
---
title: This is not fine, because the `---` are indented.
---
```
````
However, this makes it very difficult to write nice Mermaid diagrams in
HTML code-blocks.
This commit uses [`ts-dedent`](https://www.npmjs.com/package/ts-dedent)
to automatically remove the indentation from Mermaid diagrams when
parsed from HTML. Mermaid diagrams from mermaidAPI.render() are **NOT**
dedented, as that API is called from JavaScript code, and therefore
users can easily `dedent` their own diagrams.
* develop: (233 commits)
style(docs): use `github-dark` hightlight theme
refactor(docs): use default vitepress highlighter
fix: Move redirection to router
ci(renovate): disable pinning dependencies
Revert "chore(deps): pin dependencies"
change shiki getHighlighter import
create separate spec for stateRenderer-v2
diagramStates should not be global; pass it into functions; minor comment fixes
diagramClasses no longer needs to be cached; mermaidAPI no longer calls it repeatedly
(minor) import expectTypeOf in spec
(minor) fix JSdoc tag
+ spec stateRenderer-v2.js getClasses() to verify it returns a {}
(minor) fix JSdoc types in comments
(minor) add comments, remove duplicated line
chore: Add master to link checker
chore: Add docs to redirect.ts
stateDB classes must be a {} not []
feat: Redirect old documentation links.
add stateDiagram-v2 to list of graphs with classDefs
fix(docs): ClassDiagram table
...
Please read in detail about how to contribute documentation and code on the [Mermaid documentation site.](https://mermaid-js.github.io/mermaid/#/development)

---
Here are a few things to know to get you started on the right path.
Below link will help you making a copy of the repository in your local system.
If you don't have direct access to push to mermaid repositories, make a fork first. Then clone. Or clone directly from mermaid-js:
```bash
git clone git@github.com:mermaid-js/mermaid.git
cd mermaid
```
Install required packages:
```bash
# npx is required for first install as volta support for pnpm is not added yet.
npx pnpm install
pnpm test
```
## Committing code
### Docker
We make all changes via pull requests. As we have many pull requests from developers new to mermaid, the current approach is to have _knsv, Knut Sveidqvist_ as a main reviewer of changes and merging pull requests. More precisely like this:
- Large changes reviewed by knsv or other developer asked to review by knsv
- Smaller low-risk changes like dependencies, documentation, etc. can be merged by active collaborators
- Documentation (updates to the `package/mermaid/src/docs` folder is also allowed via direct commits)
To commit code, create a branch, let it start with the type like feature or bug followed by the issue number for reference and some describing text.
One example:
`feature/945_state_diagrams`
Another:
`bug/123_nasty_bug_branch`
## Committing documentation
Less strict here, it is OK to commit directly in the `develop` branch if you are a collaborator.
The documentation is written in **Markdown**. For more information about Markdown [see the GitHub Markdown help page](https://help.github.com/en/github/writing-on-github/basic-writing-and-formatting-syntax).
### Documentation source files are in [`/packages/mermaid/src/docs`](packages/mermaid/src/docs)
The source files for the project documentation are located in the [`/packages/mermaid/src/docs`](packages/mermaid/src/docs) directory. This is where you should make changes.
The files under `/packages/mermaid/src/docs` are processed to generate the published documentation, and the resulting files are put into the `/docs` directory.
source["files in /packages/mermaid/src/docs\n(changes should be done here)"] -- automatic processing\nto generate the final documentation--> published["files in /docs\ndisplayed on the official documentation site"]
If you are using docker and docker-compose, you have self-documented `run`bash script, which is a convenient alias for docker-compose commands:
```bash
./run install # npx pnpm install
./run test# pnpm test
```
## Testing
```bash
# Run unit test
pnpm test
# Run unit test in watch mode
pnpm test:watch
# Run E2E test
pnpm e2e
# Debug E2E tests
pnpm dev
pnpm cypress:open # in another terminal
```
## Branch name format:
```text
[feature | bug | chore | docs]/[issue number]_[short description using dashes ('-') or underscores ('_') instead of spaces]
Documentation is necessary for all non bugfix/refactoring changes.
Only make changes to files are in [`/packages/mermaid/src/docs`](packages/mermaid/src/docs)
**_DO NOT CHANGE FILES IN `/docs`_**
### The official documentation site
**[The mermaid documentation site](https://mermaid-js.github.io/mermaid/) is powered by [Vitepress](https://vitepress.vuejs.org/), a simple documentation site generator.**
If you want to preview the whole documentation site on your machine:
```sh
cd packages/mermaid
pnpm i
pnpm docs:dev
```
You can now build and serve the documentation site:
```sh
pnpm docs:serve
```
## Branching
Going forward we will use a git flow inspired approach to branching. So development is done in develop, to do the development in the develop.
Once development is done we branch a release branch from develop for testing.
Once the release happens we merge the release branch to master and kill the release branch.
This means... **branch off your pull request from develop**
## Content of a pull request
A new feature has been born. Great! But without the steps below it might just ... fade away ...
### **Add unit tests for the parsing part**
This is important so that, if someone else does a change to the grammar that does not know about this great feature, gets notified early on when that change breaks the parser. Another important aspect is that without proper parsing tests refactoring is pretty much impossible.
### **Add e2e tests**
This tests the rendering and visual appearance of the diagram. This ensures that the rendering of that feature in the e2e will be reviewed in the release process going forward. Less chance that it breaks!
To start working with the e2e tests, run `pnpm run dev` to start the dev server, after that start cypress by running `pnpm exec cypress open` in the mermaid folder.
The rendering tests are very straightforward to create. There is a function imgSnapshotTest. This function takes a diagram in text form, the mermaid options and renders that diagram in cypress.
When running in ci it will take a snapshot of the rendered diagram and compare it with the snapshot from last build and flag for review it if it differs.
This is what a rendering test looks like:
```javascript
it('should render forks and joins',()=>{
imgSnapshotTest(
`
stateDiagram
state fork_state <<fork>>
[*] --> fork_state
fork_state --> State2
fork_state --> State3
state join_state <<join>>
State2 --> join_state
State3 --> join_state
join_state --> State4
State4 --> [*]
`,
{logLevel:0}
);
cy.get('svg');
});
```
### **Add documentation for it**
Finally, if it is not in the documentation, no one will know about it and then **no one will use it**. Wouldn't that be sad? With all the effort that was put into the feature?
The source files for documentation are in `/packages/mermaid/src/docs` and are written in markdown. Just pick the right section and start typing. See the [Committing Documentation](#committing-documentation) section for more about how the documentation is generated.
#### Adding to or changing the documentation organization
If you want to add a new section or change the organization (structure), then you need to make sure to **change the side navigation** in `mermaid/src/docs/.vitepress/config.js`.
When changes are committed and then released, they become part of the `master` branch and become part of the published documentation on https://mermaid-js.github.io/mermaid/
## Last words
Don't get daunted if it is hard in the beginning. We have a great community with only encouraging words. So if you get stuck, ask for help and hints in the slack forum. If you want to show off something good, show it off there.
[Join our slack community if you want closer contact!](https://join.slack.com/t/mermaid-talk/shared_invite/enQtNzc4NDIyNzk4OTAyLWVhYjQxOTI2OTg4YmE1ZmJkY2Y4MTU3ODliYmIwOTY3NDJlYjA0YjIyZTdkMDMyZTUwOGI0NjEzYmEwODcwOTE)

[](https://github.com/mermaid-js/mermaid/actions/workflows/build.yml)
@@ -10,7 +39,7 @@ English | [简体中文](./README.zh-CN.md)
**Thanks to all involved, people committing pull requests, people answering questions! 🙏**
<ahref="https://mermaid-js.github.io/mermaid/landing/"><imgsrc="https://github.com/mermaid-js/mermaid/blob/master/docs/img/book-banner-post-release.jpg"alt="Explore Mermaid.js in depth, with real-world examples, tips & tricks from the creator... The first official book on Mermaid is available for purchase. Check it out!"></a>
<ahref="https://mermaid-js.github.io/mermaid/landing/"><imgsrc="https://github.com/mermaid-js/mermaid/blob/master/docs/intro/img/book-banner-post-release.jpg"alt="Explore Mermaid.js in depth, with real-world examples, tips & tricks from the creator... The first official book on Mermaid is available for purchase. Check it out!"></a>
## About
@@ -27,14 +56,12 @@ Mermaid addresses this problem by enabling users to create easily modifiable dia
Mermaid allows even non-programmers to easily create detailed diagrams through the [Mermaid Live Editor](https://mermaid.live/).<br/>
[Tutorials](./docs/config/Tutorials.md) has video tutorials.
Use Mermaid with your favorite applications, check out the list of [Integrations and Usages of Mermaid](./docs/misc/integrations.md).
Use Mermaid with your favorite applications, check out the list of [Integrations and Usages of Mermaid](./docs/ecosystem/integrations.md).
You can also use Mermaid within [GitHub](https://github.blog/2022-02-14-include-diagrams-markdown-files-mermaid/) as well many of your other favorite applications—check out the list of [Integrations and Usages of Mermaid](./docs/misc/integrations.md).
You can also use Mermaid within [GitHub](https://github.blog/2022-02-14-include-diagrams-markdown-files-mermaid/) as well many of your other favorite applications—check out the list of [Integrations and Usages of Mermaid](./docs/ecosystem/integrations.md).
For a more detailed introduction to Mermaid and some of its more basic uses, look to the [Beginner's Guide](./docs/community/n00b-overview.md), [Usage](./docs/config/usage.md) and [Tutorials](./docs/config/Tutorials.md).
In our release process we rely heavily on visual regression tests using [applitools](https://applitools.com/). Applitools is a great service which has been easy to use and integrate with our tests.
<ahref="https://applitools.com/">
@@ -138,6 +165,13 @@ class Class10 {
int id
size()
}
namespace Namespace01 {
class Class11
class Class12 {
int id
size()
}
}
```
```mermaid
@@ -157,6 +191,13 @@ class Class10 {
int id
size()
}
namespace Namespace01 {
class Class11
class Class12 {
int id
size()
}
}
```
### State diagram [<a href="https://mermaid-js.github.io/mermaid/#/stateDiagram">docs</a> - <a href="https://mermaid.live/edit#pako:eNpdkEFvgzAMhf8K8nEqpYSNthx22Xbcqcexg0sCiZQQlDhIFeK_L8A6TfXp6fOz9ewJGssFVOAJSbwr7ByadGR1n8T6evpO0vQ1uZDSekOrXGFsPqJPO6q-2-imH8f_0TeHXm50lfelsAMjnEHFY6xpMdRAUhhRQxUlFy0GTTXU_RytYeAx-AdXZB1ULWovdoCB7OXWN1CRC-Ju-r3uz6UtchGHJqDbsPygU57iysb2reoWHpyOWBINvsqypb3vFMlw3TfWZF5xiY7keC6zkpUnZIUojwW-FAVvrvn51LLnvOXHQ84Q5nn-AVtLcwk">live editor</a>]
[](https://github.com/mermaid-js/mermaid/actions/workflows/build.yml)
<ahref="https://mermaid-js.github.io/mermaid/landing/"><imgsrc="https://github.com/mermaid-js/mermaid/blob/master/docs/img/book-banner-pre-release.jpg"alt="Explore Mermaid.js in depth, with real-world examples, tips & tricks from the creator... The first official book on Mermaid is available for purchase. Check it out!"></a>
<ahref="https://mermaid-js.github.io/mermaid/landing/"><imgsrc="https://github.com/mermaid-js/mermaid/blob/master/docs/intro/img/book-banner-post-release.jpg"alt="Explore Mermaid.js in depth, with real-world examples, tips & tricks from the creator... The first official book on Mermaid is available for purchase. Check it out!"></a>
it('should render a simple C4Container diagram',()=>{
imgSnapshotTest(
`
C4Container
title Container diagram for Internet Banking System
System_Ext(email_system, "E-Mail System", "The internal Microsoft Exchange system", $tags="v1.0")
Person(customer, Customer, "A customer of the bank, with personal bank accounts", $tags="v1.0")
Container_Boundary(c1, "Internet Banking") {
Container(spa, "Single-Page App", "JavaScript, Angular", "Provides all the Internet banking functionality to customers via their web browser")
}
Rel(customer, spa, "Uses", "HTTPS")
Rel(email_system, customer, "Sends e-mails to")
`,
{}
);
cy.get('svg');
});
it('should render a simple C4Component diagram',()=>{
imgSnapshotTest(
`
C4Component
title Component diagram for Internet Banking System - API Application
Container(spa, "Single Page Application", "javascript and angular", "Provides all the internet banking functionality to customers via their web browser.")
Container_Boundary(api, "API Application") {
Component(sign, "Sign In Controller", "MVC Rest Controller", "Allows users to sign in to the internet banking system")
}
Rel_Back(spa, sign, "Uses", "JSON/HTTPS")
UpdateRelStyle(spa, sign, $offsetY="-40")
`,
{}
);
cy.get('svg');
});
it('should render a simple C4Dynamic diagram',()=>{
imgSnapshotTest(
`
C4Dynamic
title Dynamic diagram for Internet Banking System - API Application
Container(c1, "Single-Page Application", "JavaScript and Angular", "Provides all of the Internet banking functionality to customers via their web browser.")
Container_Boundary(b, "API Application") {
Component(c3, "Security Component", "Spring Bean", "Provides functionality Related to signing in, changing passwords, etc.")
Component(c2, "Sign In Controller", "Spring MVC Rest Controller", "Allows users to sign in to the Internet Banking System.")
it('New line in node and formatted edge label',()=>{
imgSnapshotTest(
`%%{init: {"flowchart": {"htmlLabels": true}} }%%
flowchart-elk LR
b("\`The dog in **the** hog.(1)
NL\`") --"\`1o **bold**\`"--> c
`,
{titleTopMargin:0}
);
});
it('Wrapping long text with a new line',()=>{
imgSnapshotTest(
`%%{init: {"flowchart": {"htmlLabels": true}} }%%
flowchart-elk LR
b(\`The dog in **the** hog.(1).. a a a a *very long text* about it
Word!
Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. \`) --> c
`,
{titleTopMargin:0}
);
});
it('Sub graphs and markdown strings',()=>{
imgSnapshotTest(
`%%{init: {"flowchart": {"htmlLabels": true}} }%%
flowchart-elk LR
subgraph "One"
a("\`The **cat**
in the hat\`") -- "1o" --> b{{"\`The **dog** in the hog\`"}}
end
subgraph "\`**Two**\`"
c("\`The **cat**
in the hat\`") -- "\`1o **ipa**\`" --> d("The dog in the hog")
b("\`The dog in **the** hog.(1).. a a a a *very long text* about it
Word!
Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. \`") --> c
it('New line in node and formatted edge label',()=>{
imgSnapshotTest(
`%%{init: {"flowchart": {"htmlLabels": true}} }%%
flowchart LR
b("\`The dog in **the** hog.(1)
NL\`") --"\`1o **bold**\`"--> c
`,
{titleTopMargin:0}
);
});
it('Wrapping long text with a new line',()=>{
imgSnapshotTest(
`%%{init: {"flowchart": {"htmlLabels": true}} }%%
flowchart LR
b("\`The dog in **the** hog.(1).. a a a a *very long text* about it
Word!
Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. \`") --> c
`,
{titleTopMargin:0}
);
});
it('Sub graphs and markdown strings',()=>{
imgSnapshotTest(
`%%{init: {"flowchart": {"htmlLabels": true}} }%%
flowchart LR
subgraph "One"
a("\`The **cat**
in the hat\`") -- "1o" --> b{{"\`The **dog** in the hog\`"}}
end
subgraph "\`**Two**\`"
c("\`The **cat**
in the hat\`") -- "\`1o **ipa**\`" --> d("The dog in the hog")
b("\`The dog in **the** hog.(1).. a a a a *very long text* about it
Word!
Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. \`") --> c
b("`The dog in **the** hog.(1).. a a a a *very long text* about it
Word!
Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words. Another line with many, many words.`") --apa--> c
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