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pkghash default tag to latest one pointing to HEAD

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This commit is contained in:
Rene Schallner 2023-04-22 16:30:12 +02:00
parent 59c2b0d807
commit 1b4de1dbf9
1 changed files with 56 additions and 12 deletions
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68
tools/pkghash.zig
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@ -65,11 +65,37 @@ pub const usage_pkg =
\\ applies in no-git mode only
\\
\\Sub-options for --git:
\\ NOTE : if used, BOTH sub-options must be provided!
\\ --tag=<tag> : specify git tag to use in template
\\ defaults to tag pointing to HEAD
\\ --template=<file.md> : specify markdown template to render
;
pub fn gitLatestTag(gpa: Allocator, pkg_dir: []const u8) ![]const u8 {
const result = try std.ChildProcess.exec(.{
.allocator = gpa,
.argv = &.{
"git",
"-C",
pkg_dir,
"tag",
"--contains=HEAD",
},
.cwd = pkg_dir,
// cwd_dir: ?fs.Dir = null,
// env_map: ?*const EnvMap = null,
// max_output_bytes: usize = 50 * 1024,
// expand_arg0: Arg0Expand = .no_expand,
});
defer gpa.free(result.stderr);
const retcode = switch (result.term) {
.Exited => |exitcode| exitcode,
else => return error.GitError,
};
if (retcode != 0) return error.GitError;
return result.stdout;
}
pub fn gitFileList(gpa: Allocator, pkg_dir: []const u8) ![]const u8 {
const result = try std.ChildProcess.exec(.{
.allocator = gpa,
@ -98,6 +124,10 @@ pub fn gitFileList(gpa: Allocator, pkg_dir: []const u8) ![]const u8 {
pub fn cmdPkgGit(gpa: Allocator, args: []const []const u8) !void {
if (args.len == 0) fatal("Expected at least one argument.\n", .{});
const cwd = std.fs.cwd();
const cwd_absolute_path = try cwd.realpathAlloc(gpa, ".");
defer gpa.free(cwd_absolute_path);
var do_render_template = false;
var template_filn: ?[]const u8 = null;
var git_tag: ?[]const u8 = null;
@ -107,7 +137,7 @@ pub fn cmdPkgGit(gpa: Allocator, args: []const []const u8) !void {
for (args) |arg| {
if (std.mem.startsWith(u8, arg, arg_tag)) {
if (arg.len > arg_tag.len) {
git_tag = arg[arg_tag.len..];
git_tag = try gpa.dupe(u8, arg[arg_tag.len..]);
do_render_template = true;
} else {
std.debug.print(
@ -141,20 +171,34 @@ pub fn cmdPkgGit(gpa: Allocator, args: []const []const u8) !void {
return;
}
if (git_tag == null) {
std.debug.print(
\\Error: if --template=... is provided, --tag= must be provided, too!
\\Use -h for help
, .{});
try showHelp();
return;
// try to get the latest tag
if (gitLatestTag(gpa, cwd_absolute_path)) |tag_slice| {
// strip \n
defer gpa.free(tag_slice);
if (tag_slice.len > 1) {
git_tag = try gpa.dupe(u8, tag_slice[0 .. tag_slice.len - 1]);
} else {
std.debug.print(
\\Error: could not deduce git tag! Provide --tag=
\\Use -h for help
, .{});
try showHelp();
return;
}
} else |_| {
std.debug.print(
\\Error: if --template=... is provided, --tag= must be provided, too!
\\Use -h for help
, .{});
try showHelp();
return;
}
}
}
const cwd = std.fs.cwd();
defer gpa.free(git_tag.?);
const hash = blk: {
const cwd_absolute_path = try cwd.realpathAlloc(gpa, ".");
defer gpa.free(cwd_absolute_path);
const result = try gitFileList(gpa, cwd_absolute_path);
defer gpa.free(result);