+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <err.h>
+#include <errno.h>
+#include <libgen.h>
+#include <limits.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <git2.h>
+
+#include "compat.h"
+
+struct deltainfo {
+ git_patch *patch;
+
+ size_t addcount;
+ size_t delcount;
+};
+
+struct commitinfo {
+ const git_oid *id;
+
+ char oid[GIT_OID_HEXSZ + 1];
+ char parentoid[GIT_OID_HEXSZ + 1];
+
+ const git_signature *author;
+ const git_signature *committer;
+ const char *summary;
+ const char *msg;
+
+ git_diff *diff;
+ git_commit *commit;
+ git_commit *parent;
+ git_tree *commit_tree;
+ git_tree *parent_tree;
+
+ size_t addcount;
+ size_t delcount;
+ size_t filecount;
+
+ struct deltainfo **deltas;
+ size_t ndeltas;
+};
+
+static git_repository *repo;
+
+static const char *relpath = "";
+static const char *repodir;
+
+static char *name = "";
+static char *strippedname = "";
+static char description[255];
+static char cloneurl[1024];
+static char *submodules;
+static char *licensefiles[] = { "HEAD:LICENSE", "HEAD:LICENSE.md", "HEAD:COPYING" };
+static char *license;
+static char *readmefiles[] = { "HEAD:README", "HEAD:README.md" };
+static char *readme;
+static long long nlogcommits = -1; /* < 0 indicates not used */
+
+/* cache */
+static git_oid lastoid;
+static char lastoidstr[GIT_OID_HEXSZ + 2]; /* id + newline + NUL byte */
+static FILE *rcachefp, *wcachefp;
+static const char *cachefile;
+
+int cp(char fileSource[], char fileDestination[])
+{
+ int c;
+ FILE *stream_R, *stream_W;
+
+ stream_R = fopen(fileSource, "r");
+ if (stream_R == NULL)
+ return -1;
+ stream_W = fopen(fileDestination, "w"); //create and write to file
+ if (stream_W == NULL)
+ {
+ fclose(stream_R);
+ return -2;
+ }
+ while ((c = fgetc(stream_R)) != EOF)
+ fputc(c, stream_W);
+ fclose(stream_R);
+ fclose(stream_W);
+
+ return 0;
+}
+
+void
+joinpath(char *buf, size_t bufsiz, const char *path, const char *path2)
+{
+ int r;
+
+ r = snprintf(buf, bufsiz, "%s%s%s",
+ path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
+ if (r < 0 || (size_t)r >= bufsiz)
+ errx(1, "path truncated: '%s%s%s'",
+ path, path[0] && path[strlen(path) - 1] != '/' ? "/" : "", path2);
+}
+
+void
+deltainfo_free(struct deltainfo *di)
+{
+ if (!di)
+ return;
+ git_patch_free(di->patch);
+ memset(di, 0, sizeof(*di));
+ free(di);
+}
+
+int
+commitinfo_getstats(struct commitinfo *ci)
+{
+ struct deltainfo *di;
+ git_diff_options opts;
+ git_diff_find_options fopts;
+ const git_diff_delta *delta;
+ const git_diff_hunk *hunk;
+ const git_diff_line *line;
+ git_patch *patch = NULL;
+ size_t ndeltas, nhunks, nhunklines;
+ size_t i, j, k;
+
+ if (git_tree_lookup(&(ci->commit_tree), repo, git_commit_tree_id(ci->commit)))
+ goto err;
+ if (!git_commit_parent(&(ci->parent), ci->commit, 0)) {
+ if (git_tree_lookup(&(ci->parent_tree), repo, git_commit_tree_id(ci->parent))) {
+ ci->parent = NULL;
+ ci->parent_tree = NULL;
+ }
+ }
+
+ git_diff_init_options(&opts, GIT_DIFF_OPTIONS_VERSION);
+ opts.flags |= GIT_DIFF_DISABLE_PATHSPEC_MATCH |
+ GIT_DIFF_IGNORE_SUBMODULES |
+ GIT_DIFF_INCLUDE_TYPECHANGE;
+ if (git_diff_tree_to_tree(&(ci->diff), repo, ci->parent_tree, ci->commit_tree, &opts))
+ goto err;
+
+ if (git_diff_find_init_options(&fopts, GIT_DIFF_FIND_OPTIONS_VERSION))
+ goto err;
+ /* find renames and copies, exact matches (no heuristic) for renames. */
+ fopts.flags |= GIT_DIFF_FIND_RENAMES | GIT_DIFF_FIND_COPIES |
+ GIT_DIFF_FIND_EXACT_MATCH_ONLY;
+ if (git_diff_find_similar(ci->diff, &fopts))
+ goto err;
+
+ ndeltas = git_diff_num_deltas(ci->diff);
+ if (ndeltas && !(ci->deltas = calloc(ndeltas, sizeof(struct deltainfo *))))
+ err(1, "calloc");
+
+ for (i = 0; i < ndeltas; i++) {
+ if (git_patch_from_diff(&patch, ci->diff, i))
+ goto err;
+
+ if (!(di = calloc(1, sizeof(struct deltainfo))))
+ err(1, "calloc");
+ di->patch = patch;
+ ci->deltas[i] = di;
+
+ delta = git_patch_get_delta(patch);
+
+ /* skip stats for binary data */
+ if (delta->flags & GIT_DIFF_FLAG_BINARY)
+ continue;
+
+ nhunks = git_patch_num_hunks(patch);
+ for (j = 0; j < nhunks; j++) {
+ if (git_patch_get_hunk(&hunk, &nhunklines, patch, j))
+ break;
+ for (k = 0; ; k++) {
+ if (git_patch_get_line_in_hunk(&line, patch, j, k))
+ break;
+ if (line->old_lineno == -1) {
+ di->addcount++;
+ ci->addcount++;
+ } else if (line->new_lineno == -1) {
+ di->delcount++;
+ ci->delcount++;
+ }
+ }
+ }
+ }
+ ci->ndeltas = i;
+ ci->filecount = i;
+
+ return 0;
+
+err:
+ git_diff_free(ci->diff);
+ ci->diff = NULL;
+ git_tree_free(ci->commit_tree);
+ ci->commit_tree = NULL;
+ git_tree_free(ci->parent_tree);
+ ci->parent_tree = NULL;
+ git_commit_free(ci->parent);
+ ci->parent = NULL;
+
+ if (ci->deltas)
+ for (i = 0; i < ci->ndeltas; i++)
+ deltainfo_free(ci->deltas[i]);
+ free(ci->deltas);
+ ci->deltas = NULL;
+ ci->ndeltas = 0;
+ ci->addcount = 0;
+ ci->delcount = 0;
+ ci->filecount = 0;
+
+ return -1;
+}
+
+void
+commitinfo_free(struct commitinfo *ci)
+{
+ size_t i;
+
+ if (!ci)
+ return;
+ if (ci->deltas)
+ for (i = 0; i < ci->ndeltas; i++)
+ deltainfo_free(ci->deltas[i]);
+
+ free(ci->deltas);
+ git_diff_free(ci->diff);
+ git_tree_free(ci->commit_tree);
+ git_tree_free(ci->parent_tree);
+ git_commit_free(ci->commit);
+ git_commit_free(ci->parent);
+ memset(ci, 0, sizeof(*ci));
+ free(ci);
+}
+
+struct commitinfo *
+commitinfo_getbyoid(const git_oid *id)
+{
+ struct commitinfo *ci;
+
+ if (!(ci = calloc(1, sizeof(struct commitinfo))))
+ err(1, "calloc");
+
+ if (git_commit_lookup(&(ci->commit), repo, id))
+ goto err;
+ ci->id = id;
+
+ git_oid_tostr(ci->oid, sizeof(ci->oid), git_commit_id(ci->commit));
+ git_oid_tostr(ci->parentoid, sizeof(ci->parentoid), git_commit_parent_id(ci->commit, 0));
+
+ ci->author = git_commit_author(ci->commit);
+ ci->committer = git_commit_committer(ci->commit);
+ ci->summary = git_commit_summary(ci->commit);
+ ci->msg = git_commit_message(ci->commit);
+
+ return ci;
+
+err:
+ commitinfo_free(ci);
+
+ return NULL;
+}
+
+FILE *
+efopen(const char *name, const char *flags)
+{
+ FILE *fp;
+
+ if (!(fp = fopen(name, flags)))
+ err(1, "fopen: '%s'", name);
+
+ return fp;
+}
+
+/* Escape characters below as HTML 2.0 / XML 1.0. */
+void
+xmlencode(FILE *fp, const char *s, size_t len)
+{
+ size_t i;
+
+ for (i = 0; *s && i < len; s++, i++) {
+ switch(*s) {
+ case '<': fputs("<", fp); break;
+ case '>': fputs(">", fp); break;
+ case '\'': fputs("'", fp); break;
+ case '&': fputs("&", fp); break;
+ case '"': fputs(""", fp); break;
+ default: fputc(*s, fp);
+ }
+ }
+}
+
+int
+mkdirp(const char *path)
+{
+ char tmp[PATH_MAX], *p;
+
+ if (strlcpy(tmp, path, sizeof(tmp)) >= sizeof(tmp))
+ errx(1, "path truncated: '%s'", path);
+ for (p = tmp + (tmp[0] == '/'); *p; p++) {
+ if (*p != '/')
+ continue;
+ *p = '\0';
+ if (mkdir(tmp, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST)
+ return -1;
+ *p = '/';
+ }
+ if (mkdir(tmp, S_IRWXU | S_IRWXG | S_IRWXO) < 0 && errno != EEXIST)
+ return -1;
+ return 0;
+}
+
+void
+printtimez(FILE *fp, const git_time *intime)
+{
+ struct tm *intm;
+ time_t t;
+ char out[32];
+
+ t = (time_t)intime->time;
+ if (!(intm = gmtime(&t)))
+ return;
+ strftime(out, sizeof(out), "%Y-%m-%dT%H:%M:%SZ", intm);
+ fputs(out, fp);
+}
+
+void
+printtime(FILE *fp, const git_time *intime)
+{
+ struct tm *intm;
+ time_t t;
+ char out[32];
+
+ t = (time_t)intime->time + (intime->offset * 60);
+ if (!(intm = gmtime(&t)))
+ return;
+ strftime(out, sizeof(out), "%a, %e %b %Y %H:%M:%S", intm);
+ if (intime->offset < 0)
+ fprintf(fp, "%s -%02d%02d", out,
+ -(intime->offset) / 60, -(intime->offset) % 60);
+ else
+ fprintf(fp, "%s +%02d%02d", out,
+ intime->offset / 60, intime->offset % 60);
+}
+
+void
+printtimeshort(FILE *fp, const git_time *intime)
+{
+ struct tm *intm;
+ time_t t;
+ char out[32];
+
+ t = (time_t)intime->time;
+ if (!(intm = gmtime(&t)))
+ return;
+ strftime(out, sizeof(out), "%Y-%m-%d %H:%M", intm);
+ fputs(out, fp);
+}
+
+void
+writeheader(FILE *fp, const char *title)
+{
+ fputs("<!DOCTYPE html>\n"
+ "<html>\n<head>\n"
+ "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
+ "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\" />\n"
+ "<title>", fp);
+ xmlencode(fp, title, strlen(title));
+ if (title[0] && strippedname[0])
+ fputs(" - ", fp);
+ xmlencode(fp, strippedname, strlen(strippedname));
+ if (description[0])
+ fputs(" - ", fp);
+ xmlencode(fp, description, strlen(description));
+ fprintf(fp, "</title>\n<link rel=\"icon\" type=\"image/png\" href=\"%sfavicon.png\" />\n", relpath);
+ fprintf(fp, "<link rel=\"alternate\" type=\"application/atom+xml\" title=\"%s Atom Feed\" href=\"%satom.xml\" />\n",
+ name, relpath);
+ fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.min.css\" />\n", relpath);
+ fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%ssyntax.css\" />\n", relpath);
+ fputs("</head>\n<body>\n<table><tr><td>", fp);
+ fprintf(fp, "<a href=\"../%s\"><img src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></a>",
+ relpath, relpath);
+ fputs("</td><td><h1>", fp);
+ xmlencode(fp, strippedname, strlen(strippedname));
+ fputs("</h1><span class=\"desc\">", fp);
+ xmlencode(fp, description, strlen(description));
+ fputs("</span></td></tr>", fp);
+ if (cloneurl[0]) {
+ fputs("<tr class=\"url\"><td></td><td><span class=\"clone\">git clone <a href=\"", fp);
+ xmlencode(fp, cloneurl, strlen(cloneurl));
+ fputs("\">", fp);
+ xmlencode(fp, cloneurl, strlen(cloneurl));
+ fputs("</a></span></td></tr>", fp);
+ }
+ fputs("<tr><td></td><td>\n", fp);
+ fprintf(fp, "<a href=\"%slog.html\">Log</a> | ", relpath);
+ fprintf(fp, "<a href=\"%sfiles.html\">Files</a> | ", relpath);
+ fprintf(fp, "<a href=\"%srefs.html\">Refs</a>", relpath);
+ if (submodules)
+ fprintf(fp, " | <a href=\"%sfile/%s.html\">Submodules</a>",
+ relpath, submodules);
+ if (readme)
+ fprintf(fp, " | <a href=\"%sfile/%s.html\">README</a>",
+ relpath, readme);
+ if (license)
+ fprintf(fp, " | <a href=\"%sfile/%s.html\">LICENSE</a>",
+ relpath, license);
+ fputs("</td></tr></table>\n<hr/>\n<div id=\"content\">\n", fp);
+}
+
+void
+writefooter(FILE *fp)
+{
+ fputs("</div>\n</body>\n</html>\n", fp);
+}
+
+int
+call_py(const char *filename, FILE *fp, const char *s, size_t len)
+{
+ // Flush HTML-file
+ fflush(fp);
+ // Copy STDOUT
+ int stdout_copy = dup(1);
+ // Redirect STDOUT
+ dup2(fileno(fp), 1);
+
+ // Python Pygments script for syntax highlighting.
+ FILE *child = popen("/usr/local/share/stagit/highlight.py", "w");
+ if (child == NULL) {
+ printf("child is null: %s", strerror(errno));
+ exit(1);
+ }
+ // Give filename through STDIN:
+ fprintf(child, "%s\n", filename);
+ // Give code to highlight through STDIN:
+ int lc;
+ size_t i;
+ for (i = 0; *s && i < len; s++, i++) {
+ if (*s == '\n') lc++;
+ fprintf(child, "%c", *s);
+ }
+
+ pclose(child);
+ fflush(stdout);
+ // Give back STDOUT.
+ dup2(stdout_copy, 1);
+ return lc;
+}
+
+int
+writeblobhtml(const char *filename, FILE *fp, const git_blob *blob)
+{
+ int lc = 0;
+ const char *s = git_blob_rawcontent(blob);
+ git_off_t len = git_blob_rawsize(blob);
+
+ if (len > 0) {
+ lc = call_py(filename, fp, s, len);
+ }
+
+ return lc;
+}
+
+void
+printcommit(FILE *fp, struct commitinfo *ci)
+{
+ fprintf(fp, "<b>commit</b> <a href=\"%scommit/%s.html\">%s</a>\n",
+ relpath, ci->oid, ci->oid);
+
+ if (ci->parentoid[0])
+ fprintf(fp, "<b>parent</b> <a href=\"%scommit/%s.html\">%s</a>\n",
+ relpath, ci->parentoid, ci->parentoid);
+
+ if (ci->author) {
+ fputs("<b>Author:</b> ", fp);
+ xmlencode(fp, ci->author->name, strlen(ci->author->name));
+ fputs(" <<a href=\"mailto:", fp);
+ xmlencode(fp, ci->author->email, strlen(ci->author->email));
+ fputs("\">", fp);
+ xmlencode(fp, ci->author->email, strlen(ci->author->email));
+ fputs("</a>>\n<b>Date:</b> ", fp);
+ printtime(fp, &(ci->author->when));
+ fputc('\n', fp);
+ }
+ if (ci->msg) {
+ fputc('\n', fp);
+ xmlencode(fp, ci->msg, strlen(ci->msg));
+ fputc('\n', fp);
+ }
+}
+
+void
+printshowfile(FILE *fp, struct commitinfo *ci)
+{
+ const git_diff_delta *delta;
+ const git_diff_hunk *hunk;
+ const git_diff_line *line;
+ git_patch *patch;
+ size_t nhunks, nhunklines, changed, add, del, total, i, j, k;
+ char linestr[80];
+ int c;
+
+ printcommit(fp, ci);
+
+ if (!ci->deltas)
+ return;
+
+ if (ci->filecount > 1000 ||
+ ci->ndeltas > 1000 ||
+ ci->addcount > 100000 ||
+ ci->delcount > 100000) {
+ fputs("Diff is too large, output suppressed.\n", fp);
+ return;
+ }
+
+ /* diff stat */
+ fputs("<b>Diffstat:</b>\n<table>", fp);
+ for (i = 0; i < ci->ndeltas; i++) {
+ delta = git_patch_get_delta(ci->deltas[i]->patch);
+
+ switch (delta->status) {
+ case GIT_DELTA_ADDED: c = 'A'; break;
+ case GIT_DELTA_COPIED: c = 'C'; break;
+ case GIT_DELTA_DELETED: c = 'D'; break;
+ case GIT_DELTA_MODIFIED: c = 'M'; break;
+ case GIT_DELTA_RENAMED: c = 'R'; break;
+ case GIT_DELTA_TYPECHANGE: c = 'T'; break;
+ default: c = ' '; break;
+ }
+ if (c == ' ')
+ fprintf(fp, "<tr><td>%c", c);
+ else
+ fprintf(fp, "<tr><td class=\"%c\">%c", c, c);
+
+ fprintf(fp, "</td><td><a href=\"#h%zu\">", i);
+ xmlencode(fp, delta->old_file.path, strlen(delta->old_file.path));
+ if (strcmp(delta->old_file.path, delta->new_file.path)) {
+ fputs(" -> ", fp);
+ xmlencode(fp, delta->new_file.path, strlen(delta->new_file.path));
+ }
+
+ add = ci->deltas[i]->addcount;
+ del = ci->deltas[i]->delcount;
+ changed = add + del;
+ total = sizeof(linestr) - 2;
+ if (changed > total) {
+ if (add)
+ add = ((float)total / changed * add) + 1;
+ if (del)
+ del = ((float)total / changed * del) + 1;
+ }
+ memset(&linestr, '+', add);
+ memset(&linestr[add], '-', del);
+
+ fprintf(fp, "</a></td><td> | </td><td class=\"num\">%zu</td><td><span class=\"i\">",
+ ci->deltas[i]->addcount + ci->deltas[i]->delcount);
+ fwrite(&linestr, 1, add, fp);
+ fputs("</span><span class=\"d\">", fp);
+ fwrite(&linestr[add], 1, del, fp);
+ fputs("</span></td></tr>\n", fp);
+ }
+ fprintf(fp, "</table></pre><pre>%zu file%s changed, %zu insertion%s(+), %zu deletion%s(-)\n",
+ ci->filecount, ci->filecount == 1 ? "" : "s",
+ ci->addcount, ci->addcount == 1 ? "" : "s",
+ ci->delcount, ci->delcount == 1 ? "" : "s");
+
+ fputs("<hr/>", fp);
+
+ for (i = 0; i < ci->ndeltas; i++) {
+ patch = ci->deltas[i]->patch;
+ delta = git_patch_get_delta(patch);
+ fprintf(fp, "<b>diff --git a/<a id=\"h%zu\" href=\"%sfile/", i, relpath);
+ xmlencode(fp, delta->old_file.path, strlen(delta->old_file.path));
+ fputs(".html\">", fp);
+ xmlencode(fp, delta->old_file.path, strlen(delta->old_file.path));
+ fprintf(fp, "</a> b/<a href=\"%sfile/", relpath);
+ xmlencode(fp, delta->new_file.path, strlen(delta->new_file.path));
+ fprintf(fp, ".html\">");
+ xmlencode(fp, delta->new_file.path, strlen(delta->new_file.path));
+ fprintf(fp, "</a></b>\n");
+
+ /* check binary data */
+ if (delta->flags & GIT_DIFF_FLAG_BINARY) {
+ fputs("Binary files differ.\n", fp);
+ continue;
+ }
+
+ nhunks = git_patch_num_hunks(patch);
+ for (j = 0; j < nhunks; j++) {
+ if (git_patch_get_hunk(&hunk, &nhunklines, patch, j))
+ break;
+
+ fprintf(fp, "<a href=\"#h%zu-%zu\" id=\"h%zu-%zu\" class=\"h\">", i, j, i, j);
+ xmlencode(fp, hunk->header, hunk->header_len);
+ fputs("</a>", fp);
+
+ for (k = 0; ; k++) {
+ if (git_patch_get_line_in_hunk(&line, patch, j, k))
+ break;
+ if (line->old_lineno == -1)
+ fprintf(fp, "<a href=\"#h%zu-%zu-%zu\" id=\"h%zu-%zu-%zu\" class=\"i\">+",
+ i, j, k, i, j, k);
+ else if (line->new_lineno == -1)
+ fprintf(fp, "<a href=\"#h%zu-%zu-%zu\" id=\"h%zu-%zu-%zu\" class=\"d\">-",
+ i, j, k, i, j, k);
+ else
+ fputc(' ', fp);
+ xmlencode(fp, line->content, line->content_len);
+ if (line->old_lineno == -1 || line->new_lineno == -1)
+ fputs("</a>", fp);
+ }
+ }
+ }
+}
+
+void
+writelogline(FILE *fp, struct commitinfo *ci)
+{
+ fputs("<tr><td>", fp);
+ if (ci->author)
+ printtimeshort(fp, &(ci->author->when));
+ fputs("</td><td>", fp);
+ if (ci->summary) {
+ fprintf(fp, "<a href=\"%scommit/%s.html\">", relpath, ci->oid);
+ xmlencode(fp, ci->summary, strlen(ci->summary));
+ fputs("</a>", fp);
+ }
+ fputs("</td><td>", fp);
+ if (ci->author)
+ xmlencode(fp, ci->author->name, strlen(ci->author->name));
+ fputs("</td><td class=\"num\" align=\"right\">", fp);
+ fprintf(fp, "%zu", ci->filecount);
+ fputs("</td><td class=\"num\" align=\"right\">", fp);
+ fprintf(fp, "+%zu", ci->addcount);
+ fputs("</td><td class=\"num\" align=\"right\">", fp);
+ fprintf(fp, "-%zu", ci->delcount);
+ fputs("</td></tr>\n", fp);
+}
+
+int
+writelog(FILE *fp, const git_oid *oid)
+{
+ struct commitinfo *ci;
+ git_revwalk *w = NULL;
+ git_oid id;
+ char path[PATH_MAX], oidstr[GIT_OID_HEXSZ + 1];
+ FILE *fpfile;
+ int r;
+
+ git_revwalk_new(&w, repo);
+ git_revwalk_push(w, oid);
+ git_revwalk_simplify_first_parent(w);
+
+ while (!git_revwalk_next(&id, w)) {
+ relpath = "";
+
+ if (cachefile && !memcmp(&id, &lastoid, sizeof(id)))
+ break;
+
+ git_oid_tostr(oidstr, sizeof(oidstr), &id);
+ r = snprintf(path, sizeof(path), "commit/%s.html", oidstr);
+ if (r < 0 || (size_t)r >= sizeof(path))
+ errx(1, "path truncated: 'commit/%s.html'", oidstr);
+ r = access(path, F_OK);
+
+ /* optimization: if there are no log lines to write and
+ the commit file already exists: skip the diffstat */
+ if (!nlogcommits && !r)
+ continue;
+
+ if (!(ci = commitinfo_getbyoid(&id)))
+ break;
+ /* diffstat: for stagit HTML required for the log.html line */
+ if (commitinfo_getstats(ci) == -1)
+ goto err;
+
+ if (nlogcommits < 0) {
+ writelogline(fp, ci);
+ } else if (nlogcommits > 0) {
+ writelogline(fp, ci);
+ nlogcommits--;
+ if (!nlogcommits && ci->parentoid[0])
+ fputs("<tr><td></td><td colspan=\"5\">"
+ "More commits remaining [...]</td>"
+ "</tr>\n", fp);
+ }
+
+ if (cachefile)
+ writelogline(wcachefp, ci);
+
+ /* check if file exists if so skip it */
+ if (r) {
+ relpath = "../";
+ fpfile = efopen(path, "w");
+ writeheader(fpfile, ci->summary);
+ fputs("<pre>", fpfile);
+ printshowfile(fpfile, ci);
+ fputs("</pre>\n", fpfile);
+ writefooter(fpfile);
+ fclose(fpfile);
+ }
+err:
+ commitinfo_free(ci);
+ }
+ git_revwalk_free(w);
+
+ relpath = "";
+
+ return 0;
+}
+
+void
+printcommitatom(FILE *fp, struct commitinfo *ci)
+{
+ fputs("<entry>\n", fp);
+
+ fprintf(fp, "<id>%s</id>\n", ci->oid);
+ if (ci->author) {
+ fputs("<published>", fp);
+ printtimez(fp, &(ci->author->when));
+ fputs("</published>\n", fp);
+ }
+ if (ci->committer) {
+ fputs("<updated>", fp);
+ printtimez(fp, &(ci->committer->when));
+ fputs("</updated>\n", fp);
+ }
+ if (ci->summary) {
+ fputs("<title type=\"text\">", fp);
+ xmlencode(fp, ci->summary, strlen(ci->summary));
+ fputs("</title>\n", fp);
+ }
+ fprintf(fp, "<link rel=\"alternate\" type=\"text/html\" href=\"commit/%s.html\" />\n",
+ ci->oid);
+
+ if (ci->author) {
+ fputs("<author>\n<name>", fp);
+ xmlencode(fp, ci->author->name, strlen(ci->author->name));
+ fputs("</name>\n<email>", fp);
+ xmlencode(fp, ci->author->email, strlen(ci->author->email));
+ fputs("</email>\n</author>\n", fp);
+ }
+
+ fputs("<content type=\"text\">", fp);
+ fprintf(fp, "commit %s\n", ci->oid);
+ if (ci->parentoid[0])
+ fprintf(fp, "parent %s\n", ci->parentoid);
+ if (ci->author) {
+ fputs("Author: ", fp);
+ xmlencode(fp, ci->author->name, strlen(ci->author->name));
+ fputs(" <", fp);
+ xmlencode(fp, ci->author->email, strlen(ci->author->email));
+ fputs(">\nDate: ", fp);
+ printtime(fp, &(ci->author->when));
+ fputc('\n', fp);
+ }
+ if (ci->msg) {
+ fputc('\n', fp);
+ xmlencode(fp, ci->msg, strlen(ci->msg));
+ }
+ fputs("\n</content>\n</entry>\n", fp);
+}
+
+int
+writeatom(FILE *fp)
+{
+ struct commitinfo *ci;
+ git_revwalk *w = NULL;
+ git_oid id;
+ size_t i, m = 100; /* last 'm' commits */
+
+ fputs("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
+ "<feed xmlns=\"http://www.w3.org/2005/Atom\">\n<title>", fp);
+ xmlencode(fp, strippedname, strlen(strippedname));
+ fputs(", branch HEAD</title>\n<subtitle>", fp);
+ xmlencode(fp, description, strlen(description));
+ fputs("</subtitle>\n", fp);
+
+ git_revwalk_new(&w, repo);
+ git_revwalk_push_head(w);
+ git_revwalk_simplify_first_parent(w);
+
+ for (i = 0; i < m && !git_revwalk_next(&id, w); i++) {
+ if (!(ci = commitinfo_getbyoid(&id)))
+ break;
+ printcommitatom(fp, ci);
+ commitinfo_free(ci);
+ }
+ git_revwalk_free(w);
+
+ fputs("</feed>\n", fp);
+
+ return 0;
+}
+
+int
+writeblob(git_object *obj, const char *fpath, const char *filename, git_off_t filesize)
+{
+ char tmp[PATH_MAX] = "", *d;
+ const char *p;
+ int lc = 0;
+ FILE *fp;
+
+ if (strlcpy(tmp, fpath, sizeof(tmp)) >= sizeof(tmp))
+ errx(1, "path truncated: '%s'", fpath);
+ if (!(d = dirname(tmp)))
+ err(1, "dirname");
+ if (mkdirp(d))
+ return -1;
+
+ for (p = fpath, tmp[0] = '\0'; *p; p++) {
+ if (*p == '/' && strlcat(tmp, "../", sizeof(tmp)) >= sizeof(tmp))
+ errx(1, "path truncated: '../%s'", tmp);
+ }
+ relpath = tmp;
+
+ fp = efopen(fpath, "w");
+ writeheader(fp, filename);
+ fputs("<p> ", fp);
+ xmlencode(fp, filename, strlen(filename));
+ fprintf(fp, " (%juB)", (uintmax_t)filesize);
+ fputs("</p><hr/>", fp);
+
+ if (git_blob_is_binary((git_blob *)obj)) {
+ fputs("<p>Binary file.</p>\n", fp);
+ } else {
+ lc = writeblobhtml(filename, fp, (git_blob *)obj);
+ if (ferror(fp))
+ err(1, "fwrite");
+ }
+ writefooter(fp);
+ fclose(fp);
+
+ relpath = "";
+
+ return lc;
+}
+
+const char *
+filemode(git_filemode_t m)
+{
+ static char mode[11];
+
+ memset(mode, '-', sizeof(mode) - 1);
+ mode[10] = '\0';
+
+ if (S_ISREG(m))
+ mode[0] = '-';
+ else if (S_ISBLK(m))
+ mode[0] = 'b';
+ else if (S_ISCHR(m))
+ mode[0] = 'c';
+ else if (S_ISDIR(m))
+ mode[0] = 'd';
+ else if (S_ISFIFO(m))
+ mode[0] = 'p';
+ else if (S_ISLNK(m))
+ mode[0] = 'l';
+ else if (S_ISSOCK(m))
+ mode[0] = 's';
+ else
+ mode[0] = '?';
+
+ if (m & S_IRUSR) mode[1] = 'r';
+ if (m & S_IWUSR) mode[2] = 'w';
+ if (m & S_IXUSR) mode[3] = 'x';
+ if (m & S_IRGRP) mode[4] = 'r';
+ if (m & S_IWGRP) mode[5] = 'w';
+ if (m & S_IXGRP) mode[6] = 'x';
+ if (m & S_IROTH) mode[7] = 'r';
+ if (m & S_IWOTH) mode[8] = 'w';
+ if (m & S_IXOTH) mode[9] = 'x';
+
+ if (m & S_ISUID) mode[3] = (mode[3] == 'x') ? 's' : 'S';
+ if (m & S_ISGID) mode[6] = (mode[6] == 'x') ? 's' : 'S';
+ if (m & S_ISVTX) mode[9] = (mode[9] == 'x') ? 't' : 'T';
+
+ return mode;
+}
+
+int
+writefilestree(FILE *fp, git_tree *tree, const char *path)
+{
+ const git_tree_entry *entry = NULL;
+ git_submodule *module = NULL;
+ git_object *obj = NULL;
+ git_off_t filesize;
+ const char *entryname;
+ char filepath[PATH_MAX], entrypath[PATH_MAX];
+ size_t count, i;
+ int lc, r, ret;
+
+ count = git_tree_entrycount(tree);
+ for (i = 0; i < count; i++) {
+ if (!(entry = git_tree_entry_byindex(tree, i)) ||
+ !(entryname = git_tree_entry_name(entry)))
+ return -1;
+ joinpath(entrypath, sizeof(entrypath), path, entryname);
+
+ r = snprintf(filepath, sizeof(filepath), "file/%s.html",
+ entrypath);
+ if (r < 0 || (size_t)r >= sizeof(filepath))
+ errx(1, "path truncated: 'file/%s.html'", entrypath);
+
+ if (!git_tree_entry_to_object(&obj, repo, entry)) {
+ switch (git_object_type(obj)) {
+ case GIT_OBJ_BLOB:
+ break;
+ case GIT_OBJ_TREE:
+ /* NOTE: recurses */
+ ret = writefilestree(fp, (git_tree *)obj,
+ entrypath);
+ git_object_free(obj);
+ if (ret)
+ return ret;
+ continue;
+ default:
+ git_object_free(obj);
+ continue;
+ }
+
+ filesize = git_blob_rawsize((git_blob *)obj);
+ lc = writeblob(obj, filepath, entryname, filesize);
+
+ fputs("<tr><td>", fp);
+ fputs(filemode(git_tree_entry_filemode(entry)), fp);
+ fprintf(fp, "</td><td><a href=\"%s", relpath);
+ xmlencode(fp, filepath, strlen(filepath));
+ fputs("\">", fp);
+ xmlencode(fp, entrypath, strlen(entrypath));
+ fputs("</a></td><td class=\"num\" align=\"right\">", fp);
+ if (lc > 0)
+ fprintf(fp, "%dL", lc);
+ else
+ fprintf(fp, "%juB", (uintmax_t)filesize);
+ fputs("</td></tr>\n", fp);
+ git_object_free(obj);
+ } else if (!git_submodule_lookup(&module, repo, entryname)) {
+ fprintf(fp, "<tr><td>m---------</td><td><a href=\"%sfile/.gitmodules.html\">",
+ relpath);
+ xmlencode(fp, entrypath, strlen(entrypath));
+ git_submodule_free(module);
+ fputs("</a></td><td class=\"num\" align=\"right\"></td></tr>\n", fp);
+ }
+ }
+
+ return 0;
+}
+
+int
+writefiles(FILE *fp, const git_oid *id)
+{
+ git_tree *tree = NULL;
+ git_commit *commit = NULL;
+ int ret = -1;
+
+ fputs("<table id=\"files\"><thead>\n<tr>"
+ "<td><b>Mode</b></td><td><b>Name</b></td>"
+ "<td class=\"num\" align=\"right\"><b>Size</b></td>"
+ "</tr>\n</thead><tbody>\n", fp);
+
+ if (!git_commit_lookup(&commit, repo, id) &&
+ !git_commit_tree(&tree, commit))
+ ret = writefilestree(fp, tree, "");
+
+ fputs("</tbody></table>", fp);
+
+ git_commit_free(commit);
+ git_tree_free(tree);
+
+ return ret;
+}
+
+int
+refs_cmp(const void *v1, const void *v2)
+{
+ git_reference *r1 = (*(git_reference **)v1);
+ git_reference *r2 = (*(git_reference **)v2);
+ int r;
+
+ if ((r = git_reference_is_branch(r1) - git_reference_is_branch(r2)))
+ return r;
+
+ return strcmp(git_reference_shorthand(r1),
+ git_reference_shorthand(r2));
+}
+
+int
+writerefs(FILE *fp)
+{
+ struct commitinfo *ci;
+ const git_oid *id = NULL;
+ git_object *obj = NULL;
+ git_reference *dref = NULL, *r, *ref = NULL;
+ git_reference_iterator *it = NULL;
+ git_reference **refs = NULL;
+ size_t count, i, j, refcount;
+ const char *titles[] = { "Branches", "Tags" };
+ const char *ids[] = { "branches", "tags" };
+ const char *name;
+
+ if (git_reference_iterator_new(&it, repo))
+ return -1;
+
+ for (refcount = 0; !git_reference_next(&ref, it); refcount++) {
+ if (!(refs = reallocarray(refs, refcount + 1, sizeof(git_reference *))))
+ err(1, "realloc");
+ refs[refcount] = ref;
+ }
+ git_reference_iterator_free(it);
+
+ /* sort by type then shorthand name */
+ qsort(refs, refcount, sizeof(git_reference *), refs_cmp);
+
+ for (j = 0; j < 2; j++) {
+ for (i = 0, count = 0; i < refcount; i++) {
+ if (!(git_reference_is_branch(refs[i]) && j == 0) &&
+ !(git_reference_is_tag(refs[i]) && j == 1))
+ continue;
+
+ switch (git_reference_type(refs[i])) {
+ case GIT_REF_SYMBOLIC:
+ if (git_reference_resolve(&dref, refs[i]))
+ goto err;
+ r = dref;
+ break;
+ case GIT_REF_OID:
+ r = refs[i];
+ break;
+ default:
+ continue;
+ }
+ if (!git_reference_target(r) ||
+ git_reference_peel(&obj, r, GIT_OBJ_ANY))
+ goto err;
+ if (!(id = git_object_id(obj)))
+ goto err;
+ if (!(ci = commitinfo_getbyoid(id)))
+ break;
+
+ /* print header if it has an entry (first). */
+ if (++count == 1) {
+ fprintf(fp, "<h2>%s</h2><table id=\"%s\">"
+ "<thead>\n<tr><td><b>Name</b></td>"
+ "<td><b>Last commit date</b></td>"
+ "<td><b>Author</b></td>\n</tr>\n"
+ "</thead><tbody>\n",
+ titles[j], ids[j]);
+ }
+
+ relpath = "";
+ name = git_reference_shorthand(r);
+
+ fputs("<tr><td>", fp);
+ xmlencode(fp, name, strlen(name));
+ fputs("</td><td>", fp);
+ if (ci->author)
+ printtimeshort(fp, &(ci->author->when));
+ fputs("</td><td>", fp);
+ if (ci->author)
+ xmlencode(fp, ci->author->name, strlen(ci->author->name));
+ fputs("</td></tr>\n", fp);
+
+ relpath = "../";
+
+ commitinfo_free(ci);
+ git_object_free(obj);
+ obj = NULL;
+ git_reference_free(dref);
+ dref = NULL;
+ }
+ /* table footer */
+ if (count)
+ fputs("</tbody></table><br/>", fp);
+ }
+
+err:
+ git_object_free(obj);
+ git_reference_free(dref);
+
+ for (i = 0; i < refcount; i++)
+ git_reference_free(refs[i]);
+ free(refs);
+
+ return 0;
+}
+
+void
+usage(char *argv0)
+{
+ fprintf(stderr, "%s [-c cachefile | -l commits] repodir\n", argv0);
+ exit(1);
+}
+
+int
+main(int argc, char *argv[])
+{
+ git_object *obj = NULL;
+ const git_oid *head = NULL;
+ mode_t mask;
+ FILE *fp, *fpread;
+ char path[PATH_MAX], repodirabs[PATH_MAX + 1], *p;
+ char tmppath[64] = "cache.XXXXXXXXXXXX", buf[BUFSIZ];
+ size_t n;
+ int i, fd;
+
+ for (i = 1; i < argc; i++) {
+ if (argv[i][0] != '-') {
+ if (repodir)
+ usage(argv[0]);
+ repodir = argv[i];
+ } else if (argv[i][1] == 'c') {
+ if (nlogcommits > 0 || i + 1 >= argc)
+ usage(argv[0]);
+ cachefile = argv[++i];
+ } else if (argv[i][1] == 'l') {
+ if (cachefile || i + 1 >= argc)
+ usage(argv[0]);
+ errno = 0;
+ nlogcommits = strtoll(argv[++i], &p, 10);
+ if (argv[i][0] == '\0' || *p != '\0' ||
+ nlogcommits <= 0 || errno)
+ usage(argv[0]);
+ }
+ }
+ if (!repodir)
+ usage(argv[0]);
+
+ if (!realpath(repodir, repodirabs))
+ err(1, "realpath");
+
+ git_libgit2_init();
+
+#ifdef __OpenBSD__
+ if (unveil(repodir, "r") == -1)
+ err(1, "unveil: %s", repodir);
+ if (unveil(".", "rwc") == -1)
+ err(1, "unveil: .");
+ if (cachefile && unveil(cachefile, "rwc") == -1)
+ err(1, "unveil: %s", cachefile);
+
+ if (cachefile) {
+ if (pledge("stdio rpath wpath cpath fattr", NULL) == -1)
+ err(1, "pledge");
+ } else {
+ if (pledge("stdio rpath wpath cpath", NULL) == -1)
+ err(1, "pledge");
+ }
+#endif
+
+ if (git_repository_open_ext(&repo, repodir,
+ GIT_REPOSITORY_OPEN_NO_SEARCH, NULL) < 0) {
+ fprintf(stderr, "%s: cannot open repository\n", argv[0]);
+ return 1;
+ }
+
+ /* find HEAD */
+ if (!git_revparse_single(&obj, repo, "HEAD"))
+ head = git_object_id(obj);
+ git_object_free(obj);
+
+ /* use directory name as name */
+ if ((name = strrchr(repodirabs, '/')))
+ name++;
+ else
+ name = "";
+
+ /* copy css */
+ char cwd[PATH_MAX];
+ strcpy(cwd, getcwd(cwd, sizeof(cwd)));
+ cp("/usr/local/share/stagit/syntax.css", strcat(cwd, "/syntax.css"));
+ strcpy(cwd, getcwd(cwd, sizeof(cwd)));
+ cp("/usr/local/share/stagit/style.min.css", strcat(cwd, "/style.min.css"));
+
+ /* strip .git suffix */
+ if (!(strippedname = strdup(name)))
+ err(1, "strdup");
+ if ((p = strrchr(strippedname, '.')))
+ if (!strcmp(p, ".git"))
+ *p = '\0';
+
+ /* read description or .git/description */
+ joinpath(path, sizeof(path), repodir, "description");
+ if (!(fpread = fopen(path, "r"))) {
+ joinpath(path, sizeof(path), repodir, ".git/description");
+ fpread = fopen(path, "r");
+ }
+ if (fpread) {
+ if (!fgets(description, sizeof(description), fpread))
+ description[0] = '\0';
+ fclose(fpread);
+ }
+
+ /* read url or .git/url */
+ joinpath(path, sizeof(path), repodir, "url");
+ if (!(fpread = fopen(path, "r"))) {
+ joinpath(path, sizeof(path), repodir, ".git/url");
+ fpread = fopen(path, "r");
+ }
+ if (fpread) {
+ if (!fgets(cloneurl, sizeof(cloneurl), fpread))
+ cloneurl[0] = '\0';
+ cloneurl[strcspn(cloneurl, "\n")] = '\0';
+ fclose(fpread);
+ }
+
+ /* check LICENSE */
+ for (i = 0; i < sizeof(licensefiles) / sizeof(*licensefiles) && !license; i++) {
+ if (!git_revparse_single(&obj, repo, licensefiles[i]) &&
+ git_object_type(obj) == GIT_OBJ_BLOB)
+ license = licensefiles[i] + strlen("HEAD:");
+ git_object_free(obj);
+ }
+
+ /* check README */
+ for (i = 0; i < sizeof(readmefiles) / sizeof(*readmefiles) && !readme; i++) {
+ if (!git_revparse_single(&obj, repo, readmefiles[i]) &&
+ git_object_type(obj) == GIT_OBJ_BLOB)
+ readme = readmefiles[i] + strlen("HEAD:");
+ git_object_free(obj);
+ }
+
+ if (!git_revparse_single(&obj, repo, "HEAD:.gitmodules") &&
+ git_object_type(obj) == GIT_OBJ_BLOB)
+ submodules = ".gitmodules";
+ git_object_free(obj);
+
+ /* log for HEAD */
+ fp = efopen("log.html", "w");
+ relpath = "";
+ mkdir("commit", S_IRWXU | S_IRWXG | S_IRWXO);
+ writeheader(fp, "Log");
+ fputs("<table id=\"log\"><thead>\n<tr><td><b>Date</b></td>"
+ "<td><b>Commit</b></td>"
+ "<td><b>Author</b></td><td class=\"num\" align=\"right\"><b>Files</b></td>"
+ "<td class=\"num\" align=\"right\"><b>+</b></td>"
+ "<td class=\"num\" align=\"right\"><b>-</b></td></tr>\n</thead><tbody>\n", fp);
+
+ if (cachefile && head) {
+ /* read from cache file (does not need to exist) */
+ if ((rcachefp = fopen(cachefile, "r"))) {
+ if (!fgets(lastoidstr, sizeof(lastoidstr), rcachefp))
+ errx(1, "%s: no object id", cachefile);
+ if (git_oid_fromstr(&lastoid, lastoidstr))
+ errx(1, "%s: invalid object id", cachefile);
+ }
+
+ /* write log to (temporary) cache */
+ if ((fd = mkstemp(tmppath)) == -1)
+ err(1, "mkstemp");
+ if (!(wcachefp = fdopen(fd, "w")))
+ err(1, "fdopen: '%s'", tmppath);
+ /* write last commit id (HEAD) */
+ git_oid_tostr(buf, sizeof(buf), head);
+ fprintf(wcachefp, "%s\n", buf);
+
+ writelog(fp, head);
+
+ if (rcachefp) {
+ /* append previous log to log.html and the new cache */
+ while (!feof(rcachefp)) {
+ n = fread(buf, 1, sizeof(buf), rcachefp);
+ if (ferror(rcachefp))
+ err(1, "fread");
+ if (fwrite(buf, 1, n, fp) != n ||
+ fwrite(buf, 1, n, wcachefp) != n)
+ err(1, "fwrite");
+ }
+ fclose(rcachefp);
+ }
+ fclose(wcachefp);
+ } else {
+ if (head)
+ writelog(fp, head);
+ }
+
+ fputs("</tbody></table>", fp);
+ writefooter(fp);
+ fclose(fp);
+
+ /* files for HEAD */
+ fp = efopen("files.html", "w");
+ writeheader(fp, "Files");
+ if (head)
+ writefiles(fp, head);
+ writefooter(fp);
+ fclose(fp);
+
+ /* summary page with branches and tags */
+ fp = efopen("refs.html", "w");
+ writeheader(fp, "Refs");
+ writerefs(fp);
+ writefooter(fp);
+ fclose(fp);
+
+ /* Atom feed */
+ fp = efopen("atom.xml", "w");
+ writeatom(fp);
+ fclose(fp);
+
+ /* rename new cache file on success */
+ if (cachefile && head) {
+ if (rename(tmppath, cachefile))
+ err(1, "rename: '%s' to '%s'", tmppath, cachefile);
+ umask((mask = umask(0)));
+ if (chmod(cachefile,
+ (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH) & ~mask))
+ err(1, "chmod: '%s'", cachefile);
+ }
+
+ /* cleanup */
+ git_repository_free(repo);
+ git_libgit2_shutdown();
+
+ return 0;
+}