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-rw-r--r--src/blogc-git-receiver/pre-receive.c318
1 files changed, 0 insertions, 318 deletions
diff --git a/src/blogc-git-receiver/pre-receive.c b/src/blogc-git-receiver/pre-receive.c
deleted file mode 100644
index 12d29cf..0000000
--- a/src/blogc-git-receiver/pre-receive.c
+++ /dev/null
@@ -1,318 +0,0 @@
-/*
- * blogc: A blog compiler.
- * Copyright (C) 2014-2020 Rafael G. Martins <rafael@rafaelmartins.eng.br>
- *
- * This program can be distributed under the terms of the BSD License.
- * See the file LICENSE.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <errno.h>
-#include <dirent.h>
-#include <time.h>
-#include <libgen.h>
-#include "../common/compat.h"
-#include "../common/utils.h"
-#include "../common/stdin.h"
-#include "settings.h"
-#include "pre-receive-parser.h"
-#include "pre-receive.h"
-
-
-static size_t
-cpu_count(void)
-{
-#ifdef _SC_NPROCESSORS_ONLN
- long num = sysconf(_SC_NPROCESSORS_ONLN);
- if (num >= 1)
- return (size_t) num;
-#endif
- return 1;
-}
-
-
-static void
-rmdir_recursive(const char *dir)
-{
- if (dir == NULL)
- return;
- struct stat buf;
- if (0 != stat(dir, &buf)) {
- return;
- }
- if (!S_ISDIR(buf.st_mode)) {
- fprintf(stderr, "error: trying to remove invalid directory: %s\n", dir);
- exit(2);
- }
- DIR *d = opendir(dir);
- if (d == NULL) {
- fprintf(stderr, "error: failed to open directory: %s\n",
- strerror(errno));
- exit(2);
- }
- struct dirent *e;
- while (NULL != (e = readdir(d))) {
- if ((0 == strcmp(e->d_name, ".")) || (0 == strcmp(e->d_name, "..")))
- continue;
- char *f = bc_strdup_printf("%s/%s", dir, e->d_name);
- if (0 != stat(f, &buf)) {
- fprintf(stderr, "error: failed to stat directory entry (%s): %s\n",
- e->d_name, strerror(errno));
- free(f);
- exit(2);
- }
- if (S_ISDIR(buf.st_mode)) {
- rmdir_recursive(f);
- }
- else if (0 != unlink(f)) {
- fprintf(stderr, "error: failed to remove file (%s): %s\n", f,
- strerror(errno));
- free(f);
- exit(2);
- }
- free(f);
- }
- if (0 != closedir(d)) {
- fprintf(stderr, "error: failed to close directory: %s\n",
- strerror(errno));
- exit(2);
- }
- if (0 != rmdir(dir)) {
- fprintf(stderr, "error: failed to remove directory: %s\n",
- strerror(errno));
- exit(2);
- }
-}
-
-
-int
-bgr_pre_receive_hook(int argc, char *argv[])
-{
- int rv = 0;
- char *ref = NULL;
- char *output_dir = NULL;
- char *tmpdir = NULL;
- char *sym = NULL;
-
- char *hooks_dir = dirname(argv[0]); // this was validated by main()
- char *real_hooks_dir = realpath(hooks_dir, NULL);
- if (real_hooks_dir == NULL) {
- fprintf(stderr, "error: failed to guess repository root: %s\n",
- strerror(errno));
- return 1;
- }
-
- char *repo_dir = bc_strdup(dirname(real_hooks_dir));
- free(real_hooks_dir);
- if (0 != chdir(repo_dir)) {
- fprintf(stderr, "error: failed to change to repository root\n");
- rv = 1;
- goto cleanup;
- }
-
- bc_config_t *config = bgr_settings_parse();
- if (config == NULL) {
- goto default_sym;
- }
-
- char *section = bgr_settings_get_section(config, repo_dir);
- if (section == NULL) {
- bc_config_free(config);
- goto default_sym;
- }
-
- const char *sym_tmp = bc_config_get(config, section, "symlink");
- if (sym_tmp == NULL) {
- free(section);
- bc_config_free(config);
- goto default_sym;
- }
-
- sym = bc_str_starts_with(sym_tmp, "/") ? bc_strdup(sym_tmp) :
- bc_strdup_printf("%s/%s", repo_dir, sym_tmp);
- free(section);
- bc_config_free(config);
-
-default_sym:
-
- if (sym == NULL) {
- sym = bc_strdup_printf("%s/htdocs", repo_dir);
- }
-
- if (NULL == getenv("GIT_DIR")) {
- if (0 != access(sym, R_OK)) {
- fprintf(stderr, "error: no previous build found. nothing to "
- "rebuild.\n");
- rv = 1;
- goto cleanup;
- }
- char *build_dir = realpath(sym, NULL);
- if (build_dir == NULL) {
- fprintf(stderr, "error: failed to get the hash of last built "
- "commit: %s\n", strerror(errno));
- rv = 1;
- goto cleanup;
- }
- char **pieces = bc_str_split(basename(build_dir), '-', 2);
- free(build_dir);
- if (bc_strv_length(pieces) != 2) {
- fprintf(stderr, "error: failed to parse the hash of last built "
- "commit.\n");
- bc_strv_free(pieces);
- rv = 1;
- goto cleanup;
- }
- ref = bc_strdup(pieces[0]);
- bc_strv_free(pieces);
- }
- else {
- size_t input_len;
- char *input = bc_stdin_read(&input_len);
- bc_trie_t *branches = bgr_pre_receive_parse(input, input_len);
-
- // try 'master' by default to avoid breaking existing setups
- ref = bc_strdup(bc_trie_lookup(branches, "master"));
- if (ref == NULL) {
- // try 'main'
- ref = bc_strdup(bc_trie_lookup(branches, "main"));
- }
-
- bc_trie_free(branches);
- free(input);
- }
-
- if (ref == NULL) {
- fprintf(stderr, "warning: no suitable branch found. "
- "nothing to deploy.\n");
- goto cleanup;
- }
-
- char dir[] = "/tmp/blogc_XXXXXX";
- if (NULL == mkdtemp(dir)) {
- rv = 1;
- goto cleanup;
- }
- tmpdir = dir;
-
- char *git_archive_cmd = bc_strdup_printf(
- "git archive \"%s\" | tar -x -C \"%s\" -f -", ref, tmpdir);
- if (0 != system(git_archive_cmd)) {
- fprintf(stderr, "error: failed to extract git content to temporary "
- "directory: %s\n", tmpdir);
- rv = 1;
- free(git_archive_cmd);
- goto cleanup;
- }
- free(git_archive_cmd);
-
- if (0 != chdir(tmpdir)) {
- fprintf(stderr, "error: failed to chdir (%s): %s\n", tmpdir,
- strerror(errno));
- rv = 1;
- goto cleanup;
- }
-
- char *buildsd = bgr_settings_get_builds_dir();
- if (buildsd == NULL) {
- fprintf(stderr, "error: failed to find builds directory path\n");
- rv = 1;
- goto cleanup;
- }
-
- unsigned long epoch = time(NULL);
- output_dir = bc_strdup_printf("%s/%s-%lu", buildsd, ref, epoch);
- free(buildsd);
-
- if (0 == access(output_dir, F_OK)) {
- char *tmp = output_dir;
- output_dir = bc_strdup_printf("%s-", tmp);
- free(tmp);
- }
-
- // detect if we will run blogc-make, make or nothing, and generate the
- // command.
- char *build_cmd = NULL;
- if (0 == access("blogcfile", F_OK)) {
- int status_bmake = system("blogc-make -v 2> /dev/null > /dev/null");
- if (127 == bc_compat_status_code(status_bmake)) {
- fprintf(stderr, "error: failed to find blogc-make binary\n");
- rv = 1;
- goto cleanup;
- }
- build_cmd = bc_strdup_printf("OUTPUT_DIR=\"%s\" blogc-make -V all",
- output_dir);
- }
- else if ((0 == access("Makefile", F_OK)) || (0 == access("GNUMakefile", F_OK))) {
- const char *make_impl = NULL;
-
- int status_gmake = system("gmake -f /dev/null 2> /dev/null > /dev/null");
- if (127 != bc_compat_status_code(status_gmake)) {
- make_impl = "gmake";
- }
- else {
- int status_make = system("make -f /dev/null 2> /dev/null > /dev/null");
- if (127 != bc_compat_status_code(status_make)) {
- make_impl = "make";
- }
- }
-
- if (make_impl == NULL) {
- fprintf(stderr, "error: no 'make' implementation found\n");
- rv = 1;
- goto cleanup;
- }
- build_cmd = bc_strdup_printf(
- "%s -j%d OUTPUT_DIR=\"%s\" BLOGC_GIT_RECEIVER=1", make_impl,
- cpu_count(), output_dir);
- }
- else {
- fprintf(stderr, "warning: no blogcfile or Makefile found. skipping ...\n");
- goto cleanup;
- }
-
- fprintf(stdout, "running command: %s\n\n", build_cmd);
- fflush(stdout);
- if (0 != system(build_cmd)) {
- fprintf(stderr, "error: failed to build website ...\n");
- rmdir_recursive(output_dir);
- free(build_cmd);
- rv = 1;
- goto cleanup;
- }
- free(build_cmd);
-
- char *htdocs_sym = realpath(sym, NULL);
- if ((htdocs_sym != NULL) && (0 != unlink(sym))) {
- fprintf(stderr, "error: failed to remove symlink (%s): %s\n", sym,
- strerror(errno));
- rmdir_recursive(output_dir);
- rv = 1;
- goto cleanup2;
- }
-
- if (0 != symlink(output_dir, sym)) {
- fprintf(stderr, "error: failed to create symlink (%s): %s\n", sym,
- strerror(errno));
- rmdir_recursive(output_dir);
- rv = 1;
- goto cleanup2;
- }
-
- if (htdocs_sym != NULL)
- rmdir_recursive(htdocs_sym);
-
-cleanup2:
- free(htdocs_sym);
-
-cleanup:
- free(sym);
- free(ref);
- free(output_dir);
- rmdir_recursive(tmpdir);
- free(repo_dir);
- return rv;
-}
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