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build runner: fix unicode tree printing

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This commit is contained in:
Andrew Kelley 2023-03-01 13:00:04 -07:00
parent 8b2d872020
commit 01299864e2
1 changed files with 12 additions and 9 deletions
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21
lib/build_runner.zig
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@ -424,6 +424,17 @@ const PrintNode = struct {
last: bool = false,
};
fn printPrefix(node: *PrintNode, stderr: std.fs.File) !void {
const parent = node.parent orelse return;
if (parent.parent == null) return;
try printPrefix(parent, stderr);
if (parent.last) {
try stderr.writeAll(" ");
} else {
try stderr.writeAll("│ ");
}
}
fn printTreeStep(
b: *std.Build,
s: *Step,
@ -431,15 +442,7 @@ fn printTreeStep(
ttyconf: std.debug.TTY.Config,
parent_node: *PrintNode,
) !void {
var opt_node: ?*PrintNode = parent_node.parent;
while (opt_node) |n| : (opt_node = n.parent) {
if (n.parent == null) break;
if (n.last) {
try stderr.writeAll(" ");
} else {
try stderr.writeAll("│ ");
}
}
try printPrefix(parent_node, stderr);
if (parent_node.parent != null) {
if (parent_node.last) {