320 lines
7.3 KiB
C
320 lines
7.3 KiB
C
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#include <sys/stat.h>
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#include <err.h>
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#include <errno.h>
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#include <inttypes.h>
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#include <libgen.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "config.h"
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#include "git2.h"
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struct commitinfo {
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const git_oid *id;
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char oid[GIT_OID_HEXSZ + 1];
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char parentoid[GIT_OID_HEXSZ + 1];
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const git_signature *author;
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const char *summary;
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const char *msg;
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git_diff_stats *stats;
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git_diff *diff;
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git_commit *commit;
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git_commit *parent;
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git_tree *commit_tree;
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git_tree *parent_tree;
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size_t addcount;
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size_t delcount;
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size_t filecount;
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};
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static git_repository *repo;
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static const char *relpath = "";
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static const char *repodir;
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static char description[255] = "Repositories";
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static char name[255];
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static char owner[255];
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void
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commitinfo_free(struct commitinfo *ci)
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{
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if (!ci)
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return;
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git_diff_stats_free(ci->stats);
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git_diff_free(ci->diff);
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git_tree_free(ci->commit_tree);
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git_tree_free(ci->parent_tree);
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git_commit_free(ci->commit);
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}
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struct commitinfo *
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commitinfo_getbyoid(const git_oid *id)
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{
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struct commitinfo *ci;
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git_diff_options opts;
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int error;
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if (!(ci = calloc(1, sizeof(struct commitinfo))))
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err(1, "calloc");
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ci->id = id;
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if (git_commit_lookup(&(ci->commit), repo, id))
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goto err;
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/* TODO: show tags when commit has it */
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git_oid_tostr(ci->oid, sizeof(ci->oid), git_commit_id(ci->commit));
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git_oid_tostr(ci->parentoid, sizeof(ci->parentoid), git_commit_parent_id(ci->commit, 0));
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ci->author = git_commit_author(ci->commit);
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ci->summary = git_commit_summary(ci->commit);
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ci->msg = git_commit_message(ci->commit);
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if ((error = git_commit_tree(&(ci->commit_tree), ci->commit)))
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goto err; /* TODO: handle error */
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if (!(error = git_commit_parent(&(ci->parent), ci->commit, 0))) {
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if ((error = git_commit_tree(&(ci->parent_tree), ci->parent)))
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goto err;
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} else {
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ci->parent = NULL;
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ci->parent_tree = NULL;
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}
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git_diff_init_options(&opts, GIT_DIFF_OPTIONS_VERSION);
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opts.flags |= GIT_DIFF_DISABLE_PATHSPEC_MATCH;
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if ((error = git_diff_tree_to_tree(&(ci->diff), repo, ci->parent_tree, ci->commit_tree, &opts)))
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goto err;
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if (git_diff_get_stats(&(ci->stats), ci->diff))
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goto err;
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ci->addcount = git_diff_stats_insertions(ci->stats);
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ci->delcount = git_diff_stats_deletions(ci->stats);
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ci->filecount = git_diff_stats_files_changed(ci->stats);
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/* TODO: show tag when commit has it */
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return ci;
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err:
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commitinfo_free(ci);
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free(ci);
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return NULL;
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}
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FILE *
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efopen(const char *name, const char *flags)
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{
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FILE *fp;
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if (!(fp = fopen(name, flags)))
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err(1, "fopen");
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return fp;
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}
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/* Escape characters below as HTML 2.0 / XML 1.0. */
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void
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xmlencode(FILE *fp, const char *s, size_t len)
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{
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size_t i;
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for (i = 0; *s && i < len; s++, i++) {
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switch(*s) {
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case '<': fputs("<", fp); break;
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case '>': fputs(">", fp); break;
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case '\'': fputs("'", fp); break;
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case '&': fputs("&", fp); break;
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case '"': fputs(""", fp); break;
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default: fputc(*s, fp);
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}
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}
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}
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/* Some implementations of basename(3) return a pointer to a static
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* internal buffer (OpenBSD). Others modify the contents of `path` (POSIX).
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* This is a wrapper function that is compatible with both versions.
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* The program will error out if basename(3) failed, this can only happen
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* with the OpenBSD version. */
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char *
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xbasename(const char *path)
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{
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char *p, *b;
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if (!(p = strdup(path)))
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err(1, "strdup");
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if (!(b = basename(p)))
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err(1, "basename");
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if (!(b = strdup(b)))
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err(1, "strdup");
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free(p);
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return b;
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}
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void
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printtimeformat(FILE *fp, const git_time *intime, const char *fmt)
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{
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struct tm *intm;
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time_t t;
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char out[32];
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t = (time_t) intime->time + (intime->offset * 60);
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intm = gmtime(&t);
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strftime(out, sizeof(out), fmt, intm);
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fputs(out, fp);
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}
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void
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printtimeshort(FILE *fp, const git_time *intime)
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{
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printtimeformat(fp, intime, "%Y-%m-%d %H:%M");
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}
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int
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writeheader(FILE *fp)
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{
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fputs("<!DOCTYPE HTML>"
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"<html dir=\"ltr\" lang=\"en\">\n<head>\n"
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"<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
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"<meta http-equiv=\"Content-Language\" content=\"en\" />\n<title>", fp);
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xmlencode(fp, description, strlen(description));
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fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
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fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
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fputs("</head>\n<body>\n\n", fp);
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fprintf(fp, "<table>\n<tr><td><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></td>\n"
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"<td><h1>%s</h1><span class=\"desc\">%s</span></td></tr><tr><td></td><td>\n",
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relpath, name, description);
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fputs("</td></tr>\n</table>\n<hr/><div id=\"content\">\n"
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"<table><thead>\n"
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"<tr><td>Name</td><td>Description</td><td>Owner</td><td>Last commit</td></tr>"
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"</thead><tbody>\n", fp);
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return 0;
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}
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int
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writefooter(FILE *fp)
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{
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return !fputs("</tbody></table></div></body>\n</html>", fp);
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}
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int
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writelog(FILE *fp)
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{
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struct commitinfo *ci;
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git_revwalk *w = NULL;
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git_oid id;
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int ret = 0;
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git_revwalk_new(&w, repo);
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git_revwalk_push_head(w);
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git_revwalk_sorting(w, GIT_SORT_TIME);
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git_revwalk_simplify_first_parent(w);
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if (git_revwalk_next(&id, w) ||
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!(ci = commitinfo_getbyoid(&id))) {
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ret = -1;
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goto err;
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}
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fputs("<tr><td><a href=\"", fp);
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xmlencode(fp, name, strlen(name));
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fputs("/log.html\">", fp);
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xmlencode(fp, name, strlen(name));
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fputs("</a></td><td>", fp);
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xmlencode(fp, description, strlen(description));
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fputs("</td><td>", fp);
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xmlencode(fp, owner, strlen(owner));
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fputs("</td><td>", fp);
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if (ci->author)
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printtimeshort(fp, &(ci->author->when));
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fputs("</td></tr>", fp);
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err:
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git_revwalk_free(w);
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return ret;
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}
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int
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main(int argc, char *argv[])
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{
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const git_error *e = NULL;
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FILE *fp;
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char path[PATH_MAX], *p;
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int status;
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size_t i;
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if (argc < 2) {
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fprintf(stderr, "%s [repodir...]\n", argv[0]);
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return 1;
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}
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git_libgit2_init();
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writeheader(stdout);
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for (i = 1; i < argc; i++) {
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repodir = argv[i];
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if ((status = git_repository_open_ext(&repo, repodir,
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GIT_REPOSITORY_OPEN_NO_SEARCH, NULL)) < 0) {
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e = giterr_last();
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fprintf(stderr, "error %d/%d: %s\n", status, e->klass, e->message);
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return status;
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}
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/* use directory name as name */
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p = xbasename(repodir);
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snprintf(name, sizeof(name), "%s", p);
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free(p);
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/* read description or .git/description */
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description[0] = '\0';
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snprintf(path, sizeof(path), "%s%s%s",
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repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "description");
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if (!(fp = fopen(path, "r"))) {
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snprintf(path, sizeof(path), "%s%s%s",
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repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/description");
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fp = fopen(path, "r");
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}
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if (fp) {
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if (!fgets(description, sizeof(description), fp))
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description[0] = '\0';
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fclose(fp);
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}
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/* read owner or .git/owner */
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owner[0] = '\0';
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snprintf(path, sizeof(path), "%s%s%s",
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repodir, repodir[strlen(repodir)] == '/' ? "" : "/", "owner");
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if (!(fp = fopen(path, "r"))) {
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snprintf(path, sizeof(path), "%s%s%s",
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repodir, repodir[strlen(repodir)] == '/' ? "" : "/", ".git/owner");
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fp = fopen(path, "r");
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}
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if (fp) {
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if (!fgets(owner, sizeof(owner), fp))
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owner[0] = '\0';
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fclose(fp);
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}
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writelog(stdout);
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}
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writefooter(stdout);
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/* cleanup */
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git_repository_free(repo);
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git_libgit2_shutdown();
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return 0;
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}
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