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stagit.c
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#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"
#include "md4c-html.h"
#define LEN(s) (sizeof(s)/sizeof(*s))
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;
};
/* reference and associated data for sorting */
struct referenceinfo {
struct git_reference *ref;
struct commitinfo *ci;
};
static git_repository *repo;
static const char *baseurl = ""; /* base URL to make absolute RSS/Atom URI */
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", "HEAD:readme", "HEAD:readme.md" };
static char *readme;
static long long nlogcommits = -1; /* -1 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;
/* Handle read or write errors for a FILE * stream */
void
checkfileerror(FILE *fp, const char *name, int mode)
{
if (mode == 'r' && ferror(fp))
errx(1, "read error: %s", name);
else if (mode == 'w' && (fflush(fp) || ferror(fp)))
errx(1, "write error: %s", name);
}
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;
}
int
refs_cmp(const void *v1, const void *v2)
{
const struct referenceinfo *r1 = v1, *r2 = v2;
time_t t1, t2;
int r;
if ((r = git_reference_is_tag(r1->ref) - git_reference_is_tag(r2->ref)))
return r;
t1 = r1->ci->author ? r1->ci->author->when.time : 0;
t2 = r2->ci->author ? r2->ci->author->when.time : 0;
if ((r = t1 > t2 ? -1 : (t1 == t2 ? 0 : 1)))
return r;
return strcmp(git_reference_shorthand(r1->ref),
git_reference_shorthand(r2->ref));
}
int
getrefs(struct referenceinfo **pris, size_t *prefcount)
{
struct referenceinfo *ris = NULL;
struct commitinfo *ci = NULL;
git_reference_iterator *it = NULL;
const git_oid *id = NULL;
git_object *obj = NULL;
git_reference *dref = NULL, *r, *ref = NULL;
size_t i, refcount;
*pris = NULL;
*prefcount = 0;
if (git_reference_iterator_new(&it, repo))
return -1;
for (refcount = 0; !git_reference_next(&ref, it); ) {
if (!git_reference_is_branch(ref) && !git_reference_is_tag(ref)) {
git_reference_free(ref);
ref = NULL;
continue;
}
switch (git_reference_type(ref)) {
case GIT_REF_SYMBOLIC:
if (git_reference_resolve(&dref, ref))
goto err;
r = dref;
break;
case GIT_REF_OID:
r = ref;
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;
if (!(ris = reallocarray(ris, refcount + 1, sizeof(*ris))))
err(1, "realloc");
ris[refcount].ci = ci;
ris[refcount].ref = r;
refcount++;
git_object_free(obj);
obj = NULL;
git_reference_free(dref);
dref = NULL;
}
git_reference_iterator_free(it);
/* sort by type, date then shorthand name */
qsort(ris, refcount, sizeof(*ris), refs_cmp);
*pris = ris;
*prefcount = refcount;
return 0;
err:
git_object_free(obj);
git_reference_free(dref);
commitinfo_free(ci);
for (i = 0; i < refcount; i++) {
commitinfo_free(ris[i].ci);
git_reference_free(ris[i].ref);
}
free(ris);
return -1;
}
FILE *
efopen(const char *filename, const char *flags)
{
FILE *fp;
if (!(fp = fopen(filename, flags)))
err(1, "fopen: '%s'", filename);
return fp;
}
/* Percent-encode, see RFC3986 section 2.1. */
void
percentencode(FILE *fp, const char *s, size_t len)
{
static char tab[] = "0123456789ABCDEF";
unsigned char uc;
size_t i;
for (i = 0; *s && i < len; s++, i++) {
uc = *s;
/* NOTE: do not encode '/' for paths or ",-." */
if (uc < ',' || uc >= 127 || (uc >= ':' && uc <= '@') ||
uc == '[' || uc == ']') {
putc('%', fp);
putc(tab[(uc >> 4) & 0x0f], fp);
putc(tab[uc & 0x0f], fp);
} else {
putc(uc, 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: putc(*s, fp);
}
}
}
/* Escape characters below as HTML 2.0 / XML 1.0, ignore printing '\r', '\n' */
void
xmlencodeline(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;
case '\r': break; /* ignore CR */
case '\n': break; /* ignore LF */
default: putc(*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\" />\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);
fputs("<link rel=\"alternate\" type=\"application/atom+xml\" title=\"", fp);
xmlencode(fp, name, strlen(name));
fprintf(fp, " Atom Feed\" href=\"%satom.xml\" />\n", relpath);
fputs("<link rel=\"alternate\" type=\"application/atom+xml\" title=\"", fp);
xmlencode(fp, name, strlen(name));
fprintf(fp, " Atom Feed (tags)\" href=\"%stags.xml\" />\n", relpath);
fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.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>git clone <a href=\"", fp);
xmlencode(fp, cloneurl, strlen(cloneurl)); /* not percent-encoded */
fputs("\">", fp);
xmlencode(fp, cloneurl, strlen(cloneurl));
fputs("</a></td></tr>", fp);
}
fputs("<tr><td></td><td>\n", fp);
if (readme)
fprintf(fp, "<a href=\"%sfile/%s.html\">README</a> | ",
relpath, readme);
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 (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);
}
void
processmd(const char* output, unsigned int len, void *fp)
{
fprintf((FILE *)fp, "%.*s", len, output);
}
size_t
writeblobmd(FILE *fp, const git_blob *blob)
{
size_t n = 0, i, len, prev, ret;
const char *s = git_blob_rawcontent(blob);
len = git_blob_rawsize(blob);
fputs("<div id=\"md\">\n", fp);
/* Counting lines in the file*/
if (len > 0) {
for (i = 0, prev = 0; i < len; i++) {
if (s[i] != '\n')
continue;
n++;
prev = i + 1;
}
if ((len - prev) > 0) {
n++;
}
ret = md_html(s, len, processmd, fp, MD_FLAG_TABLES | MD_FLAG_TASKLISTS |
MD_FLAG_PERMISSIVEEMAILAUTOLINKS | MD_FLAG_PERMISSIVEURLAUTOLINKS, 0);
}
fputs("</div>\n", fp);
return n;
}
size_t
writeblobhtml(FILE *fp, const git_blob *blob, const char *filename)
{
size_t n = 0, i, len, prev;
const char *nfmt = "<a href=\"#l%zu\" class=\"line\" id=\"l%zu\">%7zu</a> ";
const char *s = git_blob_rawcontent(blob);
len = git_blob_rawsize(blob);
fputs("<pre id=\"blob\">\n", fp);
if (len > 0) {
fflush(fp);
int og_out = dup(fileno(stdout));
if (-1 == dup2(fileno(fp), 1))
errx(1, "unable to redirect stdout");
char cmd[255] = "chroma --html --html-only --html-lines --html-lines-table --html-linkable-lines --filename ";
strncat(cmd, filename, strlen(filename) + 1);
FILE* p = popen(cmd, "w");
if (p == NULL)
errx(1, "unable to open chroma process: %s", strerror(errno));
size_t i, lc;
for (i = 0; *s && i < len; s++, i++) {
if (*s == '\n')
lc++;
fprintf(p, "%c", *s);
}
pclose(p);
fflush(stdout);
dup2(og_out, 1);
return lc;
}
fputs("</pre>\n", fp);
return n;
}
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)); /* not percent-encoded */
fputs("\">", fp);
xmlencode(fp, ci->author->email, strlen(ci->author->email));
fputs("</a>>\n<b>Date:</b> ", fp);
printtime(fp, &(ci->author->when));
putc('\n', fp);
}
if (ci->msg) {
putc('\n', fp);
xmlencode(fp, ci->msg, strlen(ci->msg));
putc('\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);
percentencode(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);
percentencode(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
putc(' ', fp);
xmlencodeline(fp, line->content, line->content_len);
putc('\n', fp);
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;
size_t remcommits = 0;
int r;
git_revwalk_new(&w, repo);
git_revwalk_push(w, oid);
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) {
remcommits++;
if (!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);
if (nlogcommits > 0)
nlogcommits--;
}
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);
checkfileerror(fpfile, path, 'w');
fclose(fpfile);
}
err:
commitinfo_free(ci);
}
git_revwalk_free(w);
if (nlogcommits == 0 && remcommits != 0) {
fprintf(fp, "<tr><td></td><td colspan=\"5\">"
"%zu more commits remaining, fetch the repository"
"</td></tr>\n", remcommits);
}
relpath = "";
return 0;
}
void
printcommitatom(FILE *fp, struct commitinfo *ci, const char *tag)
{
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);
if (tag && tag[0]) {
fputs("[", fp);
xmlencode(fp, tag, strlen(tag));
fputs("] ", fp);
}
xmlencode(fp, ci->summary, strlen(ci->summary));
fputs("</title>\n", fp);
}
fprintf(fp, "<link rel=\"alternate\" type=\"text/html\" href=\"%scommit/%s.html\" />\n",
baseurl, 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));
putc('\n', fp);
}
if (ci->msg) {
putc('\n', fp);
xmlencode(fp, ci->msg, strlen(ci->msg));
}
fputs("\n</content>\n</entry>\n", fp);
}
int
writeatom(FILE *fp, int all)
{
struct referenceinfo *ris = NULL;
size_t refcount = 0;
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);
/* all commits or only tags? */
if (all) {
git_revwalk_new(&w, repo);
git_revwalk_push_head(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);
} else if (getrefs(&ris, &refcount) != -1) {
/* references: tags */
for (i = 0; i < refcount; i++) {
if (git_reference_is_tag(ris[i].ref))
printcommitatom(fp, ris[i].ci,
git_reference_shorthand(ris[i].ref));
commitinfo_free(ris[i].ci);
git_reference_free(ris[i].ref);
}
free(ris);
}
fputs("</feed>\n", fp);
return 0;
}
int
git_blob_is_markdown_file(const char *filename)
{
const char *ext = strrchr(filename, '.');
return ((ext != NULL && (!strcmp (ext+1, "md"))));
}