feat: initial commit

Here is a small overview of the state of the project at this first
commit.

I have basic Git Repo -> HTML working, and a plan for how setting up an
actual server would work (mainly, NGINX + a git hook to rebuild).

The main thing I'm working on right now is parsing WikiCreole, though I
am starting to wonder if this is the right langauge. WikiCreole is
pretty irregular and has a lot of edge cases (e.g. around emphasis).

1 files changed, 58 insertions, 0 deletions

diff --git a/src/die.c b/src/die.c
new file mode 100644
index 0000000..529eb9b
--- /dev/null
+++ b/src/die.c
@@ -0,0 +1,58 @@
+#include "die.h"
+
+#include <assert.h>      // assert
+#include <stdio.h>       // fprintf, vfprintf, fputc, stderr
+#include <stdlib.h>      // exit, EXIT_FAILURE
+#include <stdarg.h>      // va_*
+#include <git2.h>        // git_*
+#include <string.h>      // strerror
+#include <errno.h>       // errno
+
+void die(const char *msg, ...)
+{
+	va_list ap;
+	va_start(ap, msg);
+	vfprintf(stderr, msg, ap);
+	va_end(ap);
+
+	fputc('\n', stderr);
+
+#ifndef NDEBUG
+	git_libgit2_shutdown();
+#endif
+	exit(EXIT_FAILURE);
+}
+
+// Die but include the last git error.
+void noreturn die_git(const char *msg, ...)
+{
+	va_list ap;
+	va_start(ap, msg);
+	vfprintf(stderr, msg, ap);
+	va_end(ap);
+
+	const git_error *e = git_error_last();
+	assert(e != NULL && "die_git called without error");
+	fprintf(stderr, ": %s\n", e->message);
+
+#ifndef NDEBUG
+	git_libgit2_shutdown();
+#endif
+	exit(EXIT_FAILURE);
+}
+
+// Die but include errno information.
+void noreturn die_errno(const char *msg, ...)
+{
+	va_list ap;
+	va_start(ap, msg);
+	vfprintf(stderr, msg, ap);
+	va_end(ap);
+
+	fprintf(stderr, ": %s\n", strerror(errno));
+
+#ifndef NDEBUG
+	git_libgit2_shutdown();
+#endif
+	exit(EXIT_FAILURE);
+}