feat: implement profile summary cards with GraphQL fetch and Action wrapper

- Add GraphQL client fetching profile, stats, language aggregation, and
  per-repo commit histograms for the productive-time heatmap.
- Render real SVG cards (profile details, top languages, stats grid,
  weekday×hour heatmap) with XML escaping and thousands-formatted numbers.
- Expand theme palette to 30 built-ins ported from github-readme-stats;
  add -list-themes, multi-theme rendering, and 'all' shortcut.
- Package as Docker-based GitHub Action (action.yml, Dockerfile,
  entrypoint.sh) with optional auto-commit of generated cards.
- Release workflow publishes GHCR image and cross-platform binaries on
  v* tags.
- Unit tests cover rendering, XML escape, number formatting, language sort.
This commit is contained in:
2026-04-18 18:39:51 +07:00
parent a91d964a1d
commit ff4975fae2
19 changed files with 1312 additions and 135 deletions
+100 -30
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@@ -1,42 +1,112 @@
// Package github fetches profile data from the GitHub API.
// Package github fetches profile data from the GitHub GraphQL API.
package github
import "errors"
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"time"
)
// Profile is the aggregate of data other packages render into cards.
// Fields are stubs; flesh them out as cards are implemented.
type Profile struct {
Login string
Name string
Bio string
Followers int
Following int
PublicRepos int
const endpoint = "https://api.github.com/graphql"
// Top languages aggregated across repos (name → bytes).
Languages map[string]int64
// Commit-count histogram indexed by [day-of-week][hour-of-day], local tz.
Productive [7][24]int
}
// Client wraps GitHub REST + GraphQL access.
// Client issues authenticated GraphQL requests.
type Client struct {
token string
// TODO: http.Client, rate-limit handling
http *http.Client
}
// NewClient returns a client that authenticates with the given PAT.
// Empty token uses unauthenticated access (low rate limit).
// NewClient returns a client authenticated with the given PAT. An empty token
// falls back to unauthenticated requests (60/h rate limit, no private data).
func NewClient(token string) *Client {
return &Client{token: token}
return &Client{
token: token,
http: &http.Client{Timeout: 30 * time.Second},
}
}
// Profile loads the profile summary for a user.
func (c *Client) Profile(user string) (*Profile, error) {
if user == "" {
return nil, errors.New("empty user")
}
// TODO: fetch via GraphQL: viewer, user.repositories, contributionsCollection
return &Profile{Login: user}, nil
type gqlRequest struct {
Query string `json:"query"`
Variables map[string]any `json:"variables,omitempty"`
}
type gqlError struct {
Message string `json:"message"`
Type string `json:"type,omitempty"`
Path []string `json:"path,omitempty"`
}
type gqlResponse struct {
Data json.RawMessage `json:"data"`
Errors []gqlError `json:"errors,omitempty"`
}
// query runs a GraphQL query and unmarshals the `data` field into out.
func (c *Client) query(q string, vars map[string]any, out any) error {
body, err := json.Marshal(gqlRequest{Query: q, Variables: vars})
if err != nil {
return fmt.Errorf("marshal request: %w", err)
}
req, err := http.NewRequest(http.MethodPost, endpoint, bytes.NewReader(body))
if err != nil {
return fmt.Errorf("new request: %w", err)
}
req.Header.Set("Content-Type", "application/json")
req.Header.Set("User-Agent", "ghstats")
if c.token != "" {
req.Header.Set("Authorization", "bearer "+c.token)
}
resp, err := c.http.Do(req)
if err != nil {
return fmt.Errorf("http: %w", err)
}
defer resp.Body.Close()
raw, err := io.ReadAll(resp.Body)
if err != nil {
return fmt.Errorf("read body: %w", err)
}
if resp.StatusCode >= 400 {
return fmt.Errorf("http %d: %s", resp.StatusCode, truncate(raw, 500))
}
var r gqlResponse
if err := json.Unmarshal(raw, &r); err != nil {
return fmt.Errorf("decode body: %w", err)
}
if len(r.Errors) > 0 {
msgs := make([]string, 0, len(r.Errors))
for _, e := range r.Errors {
msgs = append(msgs, e.Message)
}
return fmt.Errorf("graphql: %s", joinErrs(msgs))
}
if out != nil {
if err := json.Unmarshal(r.Data, out); err != nil {
return fmt.Errorf("decode data: %w", err)
}
}
return nil
}
func truncate(b []byte, n int) string {
if len(b) <= n {
return string(b)
}
return string(b[:n]) + "…"
}
func joinErrs(ss []string) string {
if len(ss) == 0 {
return ""
}
out := ss[0]
for _, s := range ss[1:] {
out += "; " + s
}
return out
}
+68
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@@ -0,0 +1,68 @@
package github
import "time"
// Profile is the aggregate of data other packages render into cards.
type Profile struct {
ID string
Login string
Name string
Bio string
AvatarURL string
Company string
Location string
Website string
CreatedAt time.Time
Followers int
Following int
PublicRepos int
// Totals for the stats card.
TotalStars int
TotalForks int
TotalCommits int
TotalPRs int
TotalIssues int
TotalReviews int
TotalContributedTo int
TotalContributions int // lifetime contributions from calendar + restricted
// Sorted desc by bytes. Color is GitHub's linguist color or "" if absent.
Languages []LangStat
// Commit-count histogram indexed by [day-of-week 0=Sunday][hour-of-day 0-23].
Productive [7][24]int
// TopRepos is the list of owned repo names sorted by stargazer count desc,
// populated by FetchProfile. Used as the seed set for FetchProductive.
TopRepos []string
}
// LangStat is one row in the top-languages card.
type LangStat struct {
Name string
Color string
Bytes int64
}
// repoNode is the GraphQL shape of one repository node; kept here because
// it's shared by the profile fetcher and the productive-time fetcher.
type repoNode struct {
Name string `json:"name"`
StargazerCount int `json:"stargazerCount"`
ForkCount int `json:"forkCount"`
PrimaryLanguage *struct {
Name string `json:"name"`
Color string `json:"color"`
} `json:"primaryLanguage"`
Languages struct {
Edges []struct {
Size int64 `json:"size"`
Node struct {
Name string `json:"name"`
Color string `json:"color"`
} `json:"node"`
} `json:"edges"`
} `json:"languages"`
}
+81
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@@ -0,0 +1,81 @@
package github
import (
"time"
)
// productiveGQL is the response shape for commitHistoryQuery.
type productiveGQL struct {
Repository *struct {
DefaultBranchRef *struct {
Target *struct {
History struct {
PageInfo struct {
HasNextPage bool `json:"hasNextPage"`
EndCursor string `json:"endCursor"`
} `json:"pageInfo"`
Nodes []struct {
CommittedDate string `json:"committedDate"`
} `json:"nodes"`
} `json:"history"`
} `json:"target"`
} `json:"defaultBranchRef"`
} `json:"repository"`
}
// FetchProductive fills p.Productive with a [7][24] commit histogram over the
// last year, gathered from the user's top-starred owned repos. Each repo is
// sampled up to maxPerRepo commits to keep the cost bounded.
//
// The timezone loc is applied to CommittedDate so the heatmap reflects when the
// user actually commits, not UTC.
func (c *Client) FetchProductive(p *Profile, repos []string, loc *time.Location, maxPerRepo int) error {
if loc == nil {
loc = time.UTC
}
since := time.Now().AddDate(-1, 0, 0).UTC().Format(time.RFC3339)
for _, repo := range repos {
var cursor *string
seen := 0
for {
if seen >= maxPerRepo {
break
}
vars := map[string]any{
"login": p.Login,
"repo": repo,
"userId": p.ID,
"since": since,
}
if cursor != nil {
vars["after"] = *cursor
}
var resp productiveGQL
if err := c.query(commitHistoryQuery, vars, &resp); err != nil {
return err
}
if resp.Repository == nil || resp.Repository.DefaultBranchRef == nil ||
resp.Repository.DefaultBranchRef.Target == nil {
break
}
h := resp.Repository.DefaultBranchRef.Target.History
for _, n := range h.Nodes {
t, err := time.Parse(time.RFC3339, n.CommittedDate)
if err != nil {
continue
}
tl := t.In(loc)
p.Productive[int(tl.Weekday())][tl.Hour()]++
seen++
}
if !h.PageInfo.HasNextPage {
break
}
end := h.PageInfo.EndCursor
cursor = &end
}
}
return nil
}
+140
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package github
import (
"errors"
"sort"
"time"
)
// profileGQL mirrors the GraphQL response for profileQuery.
type profileGQL struct {
User *struct {
ID string `json:"id"`
Login string `json:"login"`
Name string `json:"name"`
Bio string `json:"bio"`
AvatarURL string `json:"avatarUrl"`
Company string `json:"company"`
Location string `json:"location"`
Website string `json:"websiteUrl"`
CreatedAt string `json:"createdAt"`
Followers struct{ TotalCount int } `json:"followers"`
Following struct{ TotalCount int } `json:"following"`
PullRequests struct{ TotalCount int } `json:"pullRequests"`
Issues struct{ TotalCount int } `json:"issues"`
RepositoriesContributedTo struct{ TotalCount int } `json:"repositoriesContributedTo"`
ContributionsCollection struct {
TotalCommitContributions int `json:"totalCommitContributions"`
TotalIssueContributions int `json:"totalIssueContributions"`
TotalPullRequestContributions int `json:"totalPullRequestContributions"`
TotalPullRequestReviewContributions int `json:"totalPullRequestReviewContributions"`
TotalRepositoryContributions int `json:"totalRepositoryContributions"`
RestrictedContributionsCount int `json:"restrictedContributionsCount"`
ContributionCalendar struct {
TotalContributions int `json:"totalContributions"`
} `json:"contributionCalendar"`
} `json:"contributionsCollection"`
Repositories struct {
TotalCount int `json:"totalCount"`
PageInfo struct {
HasNextPage bool `json:"hasNextPage"`
EndCursor string `json:"endCursor"`
} `json:"pageInfo"`
Nodes []repoNode `json:"nodes"`
} `json:"repositories"`
} `json:"user"`
}
// FetchProfile collects profile, stats and language data for the given user.
// Repositories are paginated up to 10 pages (1000 owned repos) as a safety cap.
func (c *Client) FetchProfile(login string) (*Profile, error) {
if login == "" {
return nil, errors.New("empty user")
}
p := &Profile{Login: login}
langBytes := map[string]int64{}
langColor := map[string]string{}
var cursor *string
const maxPages = 10
for page := 0; page < maxPages; page++ {
vars := map[string]any{"login": login}
if cursor != nil {
vars["after"] = *cursor
}
var resp profileGQL
if err := c.query(profileQuery, vars, &resp); err != nil {
return nil, err
}
if resp.User == nil {
return nil, errors.New("user not found")
}
u := resp.User
if page == 0 {
p.ID = u.ID
p.Name = u.Name
p.Bio = u.Bio
p.AvatarURL = u.AvatarURL
p.Company = u.Company
p.Location = u.Location
p.Website = u.Website
if t, err := time.Parse(time.RFC3339, u.CreatedAt); err == nil {
p.CreatedAt = t
}
p.Followers = u.Followers.TotalCount
p.Following = u.Following.TotalCount
p.PublicRepos = u.Repositories.TotalCount
p.TotalPRs = u.PullRequests.TotalCount
p.TotalIssues = u.Issues.TotalCount
p.TotalContributedTo = u.RepositoriesContributedTo.TotalCount
cc := u.ContributionsCollection
p.TotalCommits = cc.TotalCommitContributions
p.TotalReviews = cc.TotalPullRequestReviewContributions
p.TotalContributions = cc.ContributionCalendar.TotalContributions + cc.RestrictedContributionsCount
}
for _, r := range u.Repositories.Nodes {
p.TotalStars += r.StargazerCount
p.TotalForks += r.ForkCount
p.TopRepos = append(p.TopRepos, r.Name)
for _, e := range r.Languages.Edges {
langBytes[e.Node.Name] += e.Size
if _, ok := langColor[e.Node.Name]; !ok {
langColor[e.Node.Name] = e.Node.Color
}
}
}
if !u.Repositories.PageInfo.HasNextPage {
break
}
end := u.Repositories.PageInfo.EndCursor
cursor = &end
}
p.Languages = sortLanguages(langBytes, langColor)
return p, nil
}
func sortLanguages(bytes map[string]int64, color map[string]string) []LangStat {
out := make([]LangStat, 0, len(bytes))
for name, b := range bytes {
out = append(out, LangStat{Name: name, Color: color[name], Bytes: b})
}
sort.Slice(out, func(i, j int) bool {
if out[i].Bytes != out[j].Bytes {
return out[i].Bytes > out[j].Bytes
}
return out[i].Name < out[j].Name
})
return out
}
+34
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package github
import "testing"
func TestSortLanguages(t *testing.T) {
bytes := map[string]int64{
"Go": 500,
"Python": 300,
"TypeScript": 500, // tie with Go → alphabetical wins
"HTML": 100,
}
colors := map[string]string{
"Go": "#00ADD8",
"Python": "#3572A5",
"TypeScript": "#3178c6",
}
got := sortLanguages(bytes, colors)
wantOrder := []string{"Go", "TypeScript", "Python", "HTML"}
if len(got) != len(wantOrder) {
t.Fatalf("len=%d want %d", len(got), len(wantOrder))
}
for i, name := range wantOrder {
if got[i].Name != name {
t.Errorf("pos %d: %q want %q", i, got[i].Name, name)
}
}
if got[0].Color != "#00ADD8" {
t.Errorf("Go color=%q want #00ADD8", got[0].Color)
}
if got[3].Color != "" {
t.Errorf("HTML color=%q want empty (missing from colors)", got[3].Color)
}
}
+77
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package github
// profileQuery pulls everything needed for the profile, stats and languages
// cards in one round trip. Repo pagination is handled by the caller if the
// user owns more than 100 repos.
const profileQuery = `
query($login: String!, $after: String) {
user(login: $login) {
id
login
name
bio
avatarUrl
company
location
websiteUrl
createdAt
followers { totalCount }
following { totalCount }
pullRequests { totalCount }
issues { totalCount }
repositoriesContributedTo(
first: 1
contributionTypes: [COMMIT, PULL_REQUEST, ISSUE, PULL_REQUEST_REVIEW]
) { totalCount }
contributionsCollection {
totalCommitContributions
totalIssueContributions
totalPullRequestContributions
totalPullRequestReviewContributions
totalRepositoryContributions
restrictedContributionsCount
contributionCalendar { totalContributions }
}
repositories(
first: 100
after: $after
ownerAffiliations: OWNER
isFork: false
orderBy: { field: STARGAZERS, direction: DESC }
) {
totalCount
pageInfo { hasNextPage endCursor }
nodes {
name
stargazerCount
forkCount
primaryLanguage { name color }
languages(first: 20, orderBy: { field: SIZE, direction: DESC }) {
edges {
size
node { name color }
}
}
}
}
}
}`
// commitHistoryQuery fetches commit timestamps in the default branch of one
// repo, filtered to commits authored by the target user. Used to build the
// productive-time heatmap.
const commitHistoryQuery = `
query($login: String!, $repo: String!, $userId: ID!, $since: GitTimestamp!, $after: String) {
repository(owner: $login, name: $repo) {
defaultBranchRef {
target {
... on Commit {
history(first: 100, after: $after, author: { id: $userId }, since: $since) {
pageInfo { hasNextPage endCursor }
nodes { committedDate }
}
}
}
}
}
}`