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feat(policy): add checks for header case and last character
It's common for commit message guidelines to include restrictions on the leading case and trailing punctuation of the header; this adds checks to enforce those. The desired case can be specified as either "upper" or "lower"; the punctuation check is implemented as a general check for disallowing the last character in the header to be from any given set of characters. Now that there are several header-related checks, this also adds a level to the config to put all of those checks in one place in the configuration. Signed-off-by: Danny Zhu <dzhu@dzhu.us>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| /* This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | ||
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| package commit | ||
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| import ( | ||
| "unicode" | ||
| "unicode/utf8" | ||
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| "github.com/pkg/errors" | ||
| "github.com/talos-systems/conform/internal/policy" | ||
| ) | ||
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| // HeaderCaseCheck enforces the case of the first word in the header. | ||
| type HeaderCaseCheck struct { | ||
| headerCase string | ||
| errors []error | ||
| } | ||
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| // Name returns the name of the check. | ||
| func (h HeaderCaseCheck) Name() string { | ||
| return "Header Case" | ||
| } | ||
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| // Message returns to check message. | ||
| func (h HeaderCaseCheck) Message() string { | ||
| if len(h.errors) != 0 { | ||
| return h.errors[0].Error() | ||
| } | ||
| return "Header case is valid" | ||
| } | ||
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| // Errors returns any violations of the check. | ||
| func (h HeaderCaseCheck) Errors() []error { | ||
| return h.errors | ||
| } | ||
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| // ValidateHeaderCase checks the header length. | ||
| func (c Commit) ValidateHeaderCase() policy.Check { | ||
| check := &HeaderCaseCheck{headerCase: c.Header.Case} | ||
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| firstWord, err := c.firstWord() | ||
| if err != nil { | ||
| check.errors = append(check.errors, err) | ||
| return check | ||
| } | ||
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| first, _ := utf8.DecodeRuneInString(firstWord) | ||
| if first == utf8.RuneError { | ||
| check.errors = append(check.errors, errors.New("Header does not start with valid UTF-8 text")) | ||
| return check | ||
| } | ||
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| var valid bool | ||
| switch c.Header.Case { | ||
| case "upper": | ||
| valid = unicode.IsUpper(first) | ||
| case "lower": | ||
| valid = unicode.IsLower(first) | ||
| default: | ||
| check.errors = append(check.errors, errors.Errorf("Invalid configured case %s", c.Header.Case)) | ||
| return check | ||
| } | ||
| if !valid { | ||
| check.errors = append(check.errors, errors.Errorf("Commit header case is not %s", c.Header.Case)) | ||
| } | ||
| return check | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| /* This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | ||
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| package commit | ||
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| import ( | ||
| "strings" | ||
| "unicode/utf8" | ||
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| "github.com/pkg/errors" | ||
| "github.com/talos-systems/conform/internal/policy" | ||
| ) | ||
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| // HeaderLastCharacterCheck enforces that the last character of the header isn't in some set. | ||
| type HeaderLastCharacterCheck struct { | ||
| errors []error | ||
| } | ||
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| // Name returns the name of the check. | ||
| func (h HeaderLastCharacterCheck) Name() string { | ||
| return "Header Last Character" | ||
| } | ||
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| // Message returns to check message. | ||
| func (h HeaderLastCharacterCheck) Message() string { | ||
| if len(h.errors) != 0 { | ||
| return h.errors[0].Error() | ||
| } | ||
| return "Header last character is valid" | ||
| } | ||
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| // Errors returns any violations of the check. | ||
| func (h HeaderLastCharacterCheck) Errors() []error { | ||
| return h.errors | ||
| } | ||
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| // ValidateHeaderLastCharacter checks the last character of the header. | ||
| func (c Commit) ValidateHeaderLastCharacter() policy.Check { | ||
| check := &HeaderLastCharacterCheck{} | ||
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| switch last, _ := utf8.DecodeLastRuneInString(c.header()); { | ||
| case last == utf8.RuneError: | ||
| check.errors = append(check.errors, errors.New("Header does not end with valid UTF-8 text")) | ||
| case strings.ContainsRune(c.Header.InvalidLastCharacters, last): | ||
| check.errors = append(check.errors, errors.Errorf("Commit header ends in %q", last)) | ||
| } | ||
|
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| return check | ||
| } |
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