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chore: Add release-on-a-schedule. (#573)
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Luke Sneeringer
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Jun 22, 2020
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| // Copyright 2020 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strings" | ||
| ) | ||
|
|
||
| type commit struct { | ||
| category string | ||
| message string | ||
| breaking bool | ||
| } | ||
|
|
||
| func newCommit(line string) *commit { | ||
| var cat, msg string | ||
| breaking := false | ||
| lineSplit := strings.SplitN(line, ":", 2) | ||
| if len(lineSplit) > 1 { | ||
| cat = strings.TrimSpace(lineSplit[0]) | ||
| if strings.HasSuffix(cat, "!") { | ||
| breaking = true | ||
| cat = strings.TrimSuffix(cat, "!") | ||
| } | ||
| msg = strings.TrimSpace(lineSplit[1]) | ||
| } else { | ||
| cat = "unknown" | ||
| msg = strings.TrimSpace(lineSplit[0]) | ||
| } | ||
| return &commit{category: cat, message: msg, breaking: breaking} | ||
| } | ||
|
|
||
| func (c *commit) String() string { | ||
| return c.message | ||
| } | ||
|
|
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| type changelog struct { | ||
| features []*commit | ||
| fixes []*commit | ||
| otherVisible []*commit | ||
| otherInvisible []*commit | ||
| breaking bool | ||
| } | ||
|
|
||
| func newChangelog(gitlog string) *changelog { | ||
| breaking := false | ||
| var feat, fix, vis, invis []*commit | ||
| for _, line := range strings.Split(gitlog, "\n") { | ||
| cmt := newCommit(line) | ||
| if cmt.breaking { | ||
| breaking = true | ||
| } | ||
| switch cmt.category { | ||
| case "feat": | ||
| feat = append(feat, cmt) | ||
| case "fix": | ||
| fix = append(fix, cmt) | ||
| case "docs", "refactor": | ||
| vis = append(vis, cmt) | ||
| default: | ||
| invis = append(invis, cmt) | ||
| } | ||
| } | ||
| return &changelog{ | ||
| features: feat, | ||
| fixes: fix, | ||
| otherVisible: vis, | ||
| otherInvisible: invis, | ||
| breaking: breaking, | ||
| } | ||
| } | ||
|
|
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| func (cl *changelog) incrVersion(v *version) *version { | ||
| if cl.breaking { | ||
| return v.incrMajor() | ||
| } | ||
| if len(cl.features) > 0 { | ||
| return v.incrMinor() | ||
| } | ||
| if len(cl.fixes) > 0 || len(cl.otherVisible) > 0 { | ||
| return v.incrPatch() | ||
| } | ||
| return v | ||
| } | ||
|
|
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| func (cl *changelog) notes() string { | ||
| section := func(title string, commits []*commit) string { | ||
| if len(commits) > 0 { | ||
| // %0A is newline: https://github.community/t/set-output-truncates-multiline-strings/16852 | ||
| answer := fmt.Sprintf("## %s%%0A%%0A", title) | ||
| for _, cmt := range commits { | ||
| answer += fmt.Sprintf("- %s%%0A", cmt) | ||
| } | ||
| return answer + "%0A" | ||
| } | ||
| return "" | ||
| } | ||
| return strings.TrimSuffix( | ||
| section("Features", cl.features)+section("Fixes", cl.fixes)+section("Other", cl.otherVisible), | ||
| "%0A", | ||
| ) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| // Copyright 2020 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| // This tool reads from the `.git` directory and determines the upcoming | ||
| // version tag and changelog. | ||
| // | ||
| // Usage (see .github/workflows/release.yaml): | ||
| // go run ./.github/release-tool | ||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "log" | ||
| "os/exec" | ||
| "strings" | ||
| ) | ||
|
|
||
| func main() { | ||
| // Get the most recent release version. | ||
| lastTaggedRev := mustExec("git", "rev-list", "--tags", "--max-count=1") | ||
| lastVersion := versionFromString(mustExec("git", "describe", "--tags", lastTaggedRev)) | ||
|
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| // Get the changelog between the most recent release version and now. | ||
| cl := newChangelog( | ||
| mustExec("git", "log", fmt.Sprintf("%s..HEAD", lastVersion), "--oneline", "--pretty=format:%s"), | ||
| ) | ||
|
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| // Dump output. | ||
| nextVersion := cl.incrVersion(lastVersion) | ||
| expr := "::set-output name=%s::%s\n" | ||
| if lastVersion != nextVersion { | ||
| fmt.Printf("New version: %s\n", nextVersion) | ||
| fmt.Printf(expr, "version", nextVersion.String()[1:]) | ||
| fmt.Printf(expr, "release_notes", cl.notes()) | ||
| } else { | ||
| fmt.Printf("No changes from %s to now.", lastVersion) | ||
| } | ||
| } | ||
|
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| func mustExec(cmd string, args ...string) string { | ||
| out, err := exec.Command(cmd, args...).CombinedOutput() | ||
| if err != nil { | ||
| log.Fatalf("exec failed: %s\n%s", out, err) | ||
| } | ||
| return strings.TrimSpace(string(out)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,62 @@ | ||
| // Copyright 2020 Google LLC | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "log" | ||
| "strconv" | ||
| "strings" | ||
| ) | ||
|
|
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| type version struct { | ||
| Major int `json:"major"` | ||
| Minor int `json:"minor"` | ||
| Patch int `json:"patch"` | ||
| } | ||
|
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| func versionFromString(ver string) *version { | ||
| // ver will be "vM.M.P", always. We will just panic if not. | ||
| split := strings.Split(ver[1:], ".") | ||
| return &version{ | ||
| Major: toInt(split[0]), | ||
| Minor: toInt(split[1]), | ||
| Patch: toInt(split[2]), | ||
| } | ||
| } | ||
|
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| func (v version) incrMajor() *version { | ||
| return &version{Major: v.Major + 1, Minor: 0, Patch: 0} | ||
| } | ||
|
|
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| func (v version) incrMinor() *version { | ||
| return &version{Major: v.Major, Minor: v.Minor + 1, Patch: 0} | ||
| } | ||
|
|
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| func (v version) incrPatch() *version { | ||
| return &version{Major: v.Major, Minor: v.Minor, Patch: v.Patch + 1} | ||
| } | ||
|
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| func (v version) String() string { | ||
| return fmt.Sprintf("v%d.%d.%d", v.Major, v.Minor, v.Patch) | ||
| } | ||
|
|
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| func toInt(s string) int { | ||
| i, err := strconv.Atoi(s) | ||
| if err != nil { | ||
| log.Fatalf("%s", err) | ||
| } | ||
| return i | ||
| } |
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