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Fix DESTDIR handling for terminfo installation (#3426)

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## Description:

Fix `DESTDIR` handling when installing terminfo database files by using
`install_path` instead of `install_prefix`. This ensures files are
correctly installed under `$DESTDIR/$prefix` during packaging.

## Changes:

- Replace `b.install_prefix` with `b.install_path` for terminfo database
installation paths

- This change properly respects the `DESTDIR` environment variable
during installation

## Testing:

I've verified this fix by:

1. Setting `DESTDIR=/tmp/ghostty`

2. Building with: 
```bash
DESTDIR=/tmp/ghostty \
zig build \
  --prefix /usr \
  --system /tmp/offline-cache/p \
  -Doptimize=ReleaseFast \
  -Dcpu=baseline
```

3. Confirming files are correctly installed to:

```
/tmp/ghostty/usr/share/terminfo/ghostty.terminfo
/tmp/ghostty/usr/share/terminfo/ghostty.termcap
```

The files are now properly installed under `$DESTDIR/$prefix` path
structure as expected.

cc @BratishkaErik - Since you suggested this fix in #3152, would you
mind reviewing this implementation?

Fixes #3152
This commit is contained in:
Mitchell Hashimoto
2024-12-27 12:09:37 -08:00
committed by GitHub
parent 590c2929e7 2114e0a613
commit 8111f5b995
1 changed files with 8 additions and 2 deletions
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10
build.zig
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@ -481,19 +481,25 @@ pub fn build(b: *std.Build) !void {
run_step.step.dependOn(&src_install.step);
{
// Use cp -R instead of Step.InstallDir because we need to preserve
// symlinks in the terminfo database. Zig's InstallDir step doesn't
// handle symlinks correctly yet.
const copy_step = RunStep.create(b, "copy terminfo db");
copy_step.addArgs(&.{ "cp", "-R" });
copy_step.addFileArg(path);
copy_step.addArg(b.fmt("{s}/share", .{b.install_prefix}));
copy_step.addArg(b.fmt("{s}/share", .{b.install_path}));
b.getInstallStep().dependOn(&copy_step.step);
}
if (target.result.os.tag == .macos and exe_ != null) {
// Use cp -R instead of Step.InstallDir because we need to preserve
// symlinks in the terminfo database. Zig's InstallDir step doesn't
// handle symlinks correctly yet.
const copy_step = RunStep.create(b, "copy terminfo db");
copy_step.addArgs(&.{ "cp", "-R" });
copy_step.addFileArg(path);
copy_step.addArg(
b.fmt("{s}/Ghostty.app/Contents/Resources", .{b.install_prefix}),
b.fmt("{s}/Ghostty.app/Contents/Resources", .{b.install_path}),
);
b.getInstallStep().dependOn(&copy_step.step);
}