gout

A static git page generator
git clone https://git.bracken.jp/gout.git
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log.c (2959B)

      1 #include "writer/gemini/log.h"
      2 
      3 #include <assert.h>
      4 #include <err.h>
      5 #include <stdint.h>
      6 #include <stdlib.h>
      7 
      8 #include "format.h"
      9 #include "utils.h"
     10 #include "writer/cache/cache.h"
     11 #include "writer/gemini/page.h"
     12 
     13 #include <sys/stat.h>
     14 #include <unistd.h>
     15 
     16 struct GeminiLog {
     17   const GitRepo* repo;
     18   const FileSystem* fs;
     19   FILE* out;
     20   Cache* cache;
     21   GeminiPage* page;
     22   size_t remaining_commits;
     23   size_t unlogged_commits;
     24 };
     25 
     26 static void write_commit_row(FILE* out, const GitCommit* commit);
     27 
     28 GeminiLog* gemini_log_create(const GitRepo* repo, const FileSystem* fs) {
     29   assert(repo != NULL);
     30   assert(fs != NULL);
     31   GeminiLog* log = ecalloc(1, sizeof(GeminiLog));
     32   log->repo = repo;
     33   log->fs = fs;
     34   log->out = fs->fopen("log.gmi", "w");
     35   if (!log->out) {
     36     err(1, "fopen: log.gmi");
     37   }
     38   log->page = gemini_page_create(log->out, repo, fs, "Log", "");
     39   log->remaining_commits = SIZE_MAX;
     40   log->unlogged_commits = 0;
     41   return log;
     42 }
     43 
     44 void gemini_log_free(GeminiLog* log) {
     45   if (!log) {
     46     return;
     47   }
     48   log->fs->fclose(log->out);
     49   log->out = NULL;
     50   cache_free(log->cache);
     51   log->cache = NULL;
     52   gemini_page_free(log->page);
     53   log->page = NULL;
     54   free(log);
     55 }
     56 
     57 void gemini_log_set_cachefile(GeminiLog* log, const char* cachefile) {
     58   assert(log != NULL);
     59   assert(cachefile != NULL);
     60   log->cache = cache_open(log->fs, cachefile, write_commit_row);
     61 }
     62 
     63 void gemini_log_set_commit_limit(GeminiLog* log, size_t count) {
     64   assert(log != NULL);
     65   log->remaining_commits = count;
     66 }
     67 
     68 bool gemini_log_can_add_commits(const GeminiLog* log) {
     69   assert(log != NULL);
     70   return !log->cache || cache_can_add_commits(log->cache);
     71 }
     72 
     73 void gemini_log_begin(GeminiLog* log) {
     74   assert(log != NULL);
     75   gemini_page_begin(log->page);
     76 }
     77 
     78 void gemini_log_add_commit(GeminiLog* log, const GitCommit* commit) {
     79   assert(log != NULL);
     80   assert(commit != NULL);
     81   if (log->cache) {
     82     cache_add_commit_row(log->cache, commit);
     83   } else if (log->remaining_commits > 0) {
     84     write_commit_row(log->out, commit);
     85     log->remaining_commits--;
     86   } else {
     87     log->unlogged_commits++;
     88   }
     89 }
     90 
     91 void gemini_log_end(GeminiLog* log) {
     92   assert(log != NULL);
     93   if (log->cache) {
     94     cache_close_and_replace(log->cache, log->out);
     95   } else if (log->unlogged_commits > 0) {
     96     size_t count = log->unlogged_commits;
     97     fprintf(log->out, "\n%zu more commits remaining, fetch the repository\n",
     98             count);
     99   }
    100   fprintf(log->out, "\n=> atom.xml Atom feed\n");
    101   fprintf(log->out, "=> tags.xml Atom feed (tags)\n");
    102   gemini_page_end(log->page);
    103 }
    104 
    105 static void write_commit_row(FILE* out, const GitCommit* commit) {
    106   assert(out != NULL);
    107   assert(commit != NULL);
    108   fprintf(out, "=> commit/");
    109   print_percent_encoded(out, commit->oid);
    110   fprintf(out, ".gmi ");
    111   print_time_short(out, commit->author_time);
    112   fprintf(out, "  ");
    113   const char* summary = commit->summary;
    114   if (summary) {
    115     fprintf(out, "%s", summary);
    116   }
    117   fprintf(out, " [%s]\n", commit->author_name);
    118 }