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<script lang="ts">
import { defineComponent, h, PropType, VNode } from "vue";
import hljs from "highlight.js";
import hljs_languages from "../util/hljs-languages";
type Hunk = {
new_start: number,
new_lines_cnt: number,
new_lines: number[],
old_start: number,
old_lines_cnt: number,
deleted_lines: number[],
hunk: string
}
type Patch = {
additions: number,
deletions: number,
from: string,
to: string,
too_large: boolean,
hunks: Hunk[]
}
export default defineComponent({
name: "CommitPatch",
props: {
patch: {
type: Object as PropType<Patch>,
required: true
}
},
setup(props) {
if(props.patch.too_large === true) {
return () => h("div", { class: "ps-3 pt-3 patch-too-large" }, [
h("span", "Patch is too large to display.")
]);
}
// Array of hunks without the first chunk headers
const all_hunks = props.patch.hunks.map((hunk) => hunk.hunk.split("\n").slice(1).join("\n"));
// Check if the patch's file extension matches any predefined language.
const language = hljs_languages.find((lang) => lang.extensions.some((extension) => props.patch.to.endsWith(extension)));
// Syntax highlight all of the patch's hunks
const highlight_result = language
? hljs.highlight(all_hunks.join("\n"), { language: language.name })
: hljs.highlightAuto(all_hunks.join("\n"));
const highlighted = highlight_result.value.split("\n");
const highlighted_hunks: string[][] = [];
let hunk_start = 0;
all_hunks.forEach((hunk, index) => {
// Add the chunk headers back to the hunks
all_hunks[index] = props.patch.hunks[index].hunk.split("\n")[0] + all_hunks[index];
// Split the syntax highlighted patch back into hunks
const hunk_row_cnt = hunk.split("\n").length;
highlighted_hunks.push(highlighted.slice(hunk_start, hunk_start + hunk_row_cnt));
hunk_start = hunk_start + hunk_row_cnt;
});
const all_hunks_raw = all_hunks.map((hunk) => hunk.split("\n"));
return () => h("table", { cellspacing: "0px" }, [
h("tbody", [
props.patch.hunks.map((hunk, hunk_index) => {
let new_offset = 0;
let deleted_offset = 0;
const multiline_comments: string[] = [];
return highlighted_hunks[hunk_index].map((line, line_index) => {
if(/^@@ -[0-9,]+ \+[0-9,]+ @@/.test(all_hunks_raw[hunk_index][line_index])) {
return h("tr", { class: "commit-file-pos-change" }, [
h("td", { "patch-line-col-unsel": "..." }),
h("td", { "patch-line-col-unsel": "..." }),
h("td", { "patch-line-col-unsel": "..." }),
h("td", [
h("code", all_hunks_raw[hunk_index][line_index])
])
]);
} else if(/^\\ No newline at end of file$/.test(all_hunks_raw[hunk_index][line_index])) {
new_offset++;
deleted_offset++;
return h("tr", { class: "commit-file-no-newline" }, [
h("td", ""),
h("td", ""),
h("td", ""),
h("td", [
h("code", all_hunks_raw[hunk_index][line_index])
])
]);
} else {
let first_td: VNode;
let second_td: VNode;
let third_td: VNode;
const adjusted_line_index = line_index + 1;
if(hunk.new_lines.includes(adjusted_line_index)) {
first_td = h("td", "");
second_td = h("td", { class: "line-highlight-new", "patch-line-col-unsel": Number(hunk.new_start) + line_index - new_offset });
third_td = h("td", { class: "line-new", "patch-line-col-unsel": "+" });
deleted_offset++;
} else if(hunk.deleted_lines.includes(adjusted_line_index)) {
first_td = h("td", { "patch-line-col-unsel": Number(hunk.old_start) + line_index - deleted_offset });
second_td = h("td", { class: "line-highlight-deleted" });
third_td = h("td", { class: "line-deleted", "patch-line-col-unsel": "-" });
new_offset++;
} else {
first_td = h("td", { class: "line-unchanged", "patch-line-col-unsel": Number(hunk.old_start) + line_index - deleted_offset });
second_td = h("td", { class: "line-unchanged", "patch-line-col-unsel": Number(hunk.new_start) + line_index - new_offset });
third_td = h("td", "");
}
const is_comment_open = line.match(/<span class="hljs-comment">/g);
const comment_open_cnt = (is_comment_open !== null) ? is_comment_open.length : 0;
const comment_open = (is_comment_open !== null) ? is_comment_open[0] : "";
const is_comment_close = line.match(/<\/span>/g);
const comment_close_cnt = (is_comment_close !== null) ? is_comment_close.length : 0;
// Const comment_close = (is_comment_close !== null) ? is_comment_close[0] : "";
if(comment_open_cnt > comment_close_cnt) {
line = line + "</span>";
multiline_comments.push(comment_open);
} else if(comment_open_cnt < comment_close_cnt && multiline_comments.length !== 0) {
line = multiline_comments[multiline_comments.length - 1] + line;
multiline_comments.pop();
} else if(multiline_comments.length !== 0) {
line = multiline_comments[multiline_comments.length - 1] + line + "</span>";
}
return h("tr", [
first_td,
second_td,
third_td,
h("td", [
h("code", { innerHTML: line })
])
]);
}
});
})
])
]);
}
});
</script>
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