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Fix bug when review pull request commits (#35192)

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The commit range in the UI follows a half-open, half-closed convention:
(,]. When reviewing a range of commits, the beforeCommitID should be set
to the commit immediately preceding the first selected commit. For
single-commit reviews, we must identify and use the previous commit of
that specific commit.

The endpoint ViewPullFilesStartingFromCommit is currently unused and can
be safely removed.

Fix #35157 
Replace #35184 
Partially extract from #35077
This commit is contained in:
Lunny Xiao
2025-08-03 10:23:10 -07:00
committed by GitHub
parent 1f676b36b1
commit be2a6b4414
5 changed files with 89 additions and 108 deletions
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43
web_src/js/components/DiffCommitSelector.vue
View File

@@ -32,6 +32,7 @@ export default defineComponent({
locale: {
filter_changes_by_commit: el.getAttribute('data-filter_changes_by_commit'),
} as Record<string, string>,
mergeBase: el.getAttribute('data-merge-base'),
commits: [] as Array<Commit>,
hoverActivated: false,
lastReviewCommitSha: '',
@@ -176,32 +177,38 @@ export default defineComponent({
}
},
/**
* When a commit is clicked with shift this enables the range
* selection. Second click (with shift) defines the end of the
* range. This opens the diff of this range
* Exception: first commit is the first commit of this PR. Then
* the diff from beginning of PR up to the second clicked commit is
* opened
* When a commit is clicked while holding Shift, it enables range selection.
* - The range selection is a half-open, half-closed range, meaning it excludes the start commit but includes the end commit.
* - The start of the commit range is always the previous commit of the first clicked commit.
* - If the first commit in the list is clicked, the mergeBase will be used as the start of the range instead.
* - The second Shift-click defines the end of the range.
* - Once both are selected, the diff view for the selected commit range will open.
*/
commitClickedShift(commit: Commit) {
this.hoverActivated = !this.hoverActivated;
commit.selected = true;
// Second click -> determine our range and open links accordingly
if (!this.hoverActivated) {
// since at least one commit is selected, we can determine the range
// find all selected commits and generate a link
if (this.commits[0].selected) {
// first commit is selected - generate a short url with only target sha
const lastCommitIdx = this.commits.findLastIndex((x) => x.selected);
if (lastCommitIdx === this.commits.length - 1) {
// user selected all commits - just show the normal diff page
window.location.assign(`${this.issueLink}/files${this.queryParams}`);
} else {
window.location.assign(`${this.issueLink}/files/${this.commits[lastCommitIdx].id}${this.queryParams}`);
}
const firstSelected = this.commits.findIndex((x) => x.selected);
const lastSelected = this.commits.findLastIndex((x) => x.selected);
let beforeCommitID: string;
if (firstSelected === 0) {
beforeCommitID = this.mergeBase;
} else {
const start = this.commits[this.commits.findIndex((x) => x.selected) - 1].id;
const end = this.commits.findLast((x) => x.selected).id;
window.location.assign(`${this.issueLink}/files/${start}..${end}${this.queryParams}`);
beforeCommitID = this.commits[firstSelected - 1].id;
}
const afterCommitID = this.commits[lastSelected].id;
if (firstSelected === lastSelected) {
// if the start and end are the same, we show this single commit
window.location.assign(`${this.issueLink}/commits/${afterCommitID}${this.queryParams}`);
} else if (beforeCommitID === this.mergeBase && afterCommitID === this.commits.at(-1).id) {
// if the first commit is selected and the last commit is selected, we show all commits
window.location.assign(`${this.issueLink}/files${this.queryParams}`);
} else {
window.location.assign(`${this.issueLink}/files/${beforeCommitID}..${afterCommitID}${this.queryParams}`);
}
}
},