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tcache support (-c option) - stagit - static git page generator
git clone git://src.adamsgaard.dk/stagit
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---
commit 1a3584e2d0689aece46d9832c91f57723296807f
parent ede93fa7ee0af8e6e858981e1a7e5057646487ce
Author: Hiltjo Posthuma <[email protected]>
Date: Sun, 1 May 2016 17:54:14 +0200
cache support (-c option)
"Optionally the -c cachefile option can be used to cache the entries of
tthe log page up to the point of the last commit. The cachefile will store
tthe last commit id and the entries in the HTML table."
tthis caches the diffstat and commits, it is an expensive operation (twss).
Diffstat:
M stagit.1 | 20 +++++++++++++++++---
M stagit.c | 151 +++++++++++++++++++++++------…
2 files changed, 130 insertions(+), 41 deletions(-)
---
diff --git a/stagit.1 b/stagit.1
t@@ -1,4 +1,4 @@
-.Dd December 26, 2015
+.Dd May 1, 2016
.Dt STAGIT 1
.Os
.Sh NAME
t@@ -6,12 +6,26 @@
.Nd static git page generator
.Sh SYNOPSIS
.Nm
-.Op Ar repodir
+.Op Fl c Ar cachefile
+.Ar repodir
.Sh DESCRIPTION
.Nm
writes HTML pages for the repository
.Ar repodir
-to the current directory. The following files will be written:
+to the current directory.
+.Pp
+Optionally the
+.Fl c Ar cachefile
+option can be used to cache the entries of the log page up to the point of
+the last commit. The
+.Ar cachefile
+will store the last commit id and the entries in the HTML table. It is up
+to the user to make sure the state of the
+.Ar cachefile
+is in sync with the history of the repository, for example a
+git push \-\-force can screw this up.
+.Pp
+The following files will be written:
.Bl -tag -width Ds
.It atom.xml
Atom XML feed
diff --git a/stagit.c b/stagit.c
t@@ -58,6 +58,12 @@ static char description[255];
static char cloneurl[1024];
static int haslicense, hasreadme, hassubmodules;
+/* cache */
+static git_oid lastoid;
+static char lastoidstr[GIT_OID_HEXSZ + 2]; /* id + newline + nul byte */
+static FILE *rcachefp, *wcachefp;
+static const char *cachefile;
+
void
deltainfo_free(struct deltainfo *di)
{
t@@ -530,13 +536,43 @@ printshowfile(FILE *fp, struct commitinfo *ci)
}
}
+void
+writelogline(FILE *fp, struct commitinfo *ci)
+{
+ size_t len;
+
+ 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);
+ if ((len = strlen(ci->summary)) > summarylen) {
+ xmlencode(fp, ci->summary, summarylen - 1);
+ fputs("…", fp);
+ } else {
+ xmlencode(fp, ci->summary, len);
+ }
+ fputs("</a>", fp);
+ }
+ fputs("</td><td>", fp);
+ if (ci->author)
+ xmlencode(fp, ci->author->name, strlen(ci->author->name));
+ fputs("</td><td class=\"num\">", fp);
+ fprintf(fp, "%zu", ci->filecount);
+ fputs("</td><td class=\"num\">", fp);
+ fprintf(fp, "+%zu", ci->addcount);
+ fputs("</td><td class=\"num\">", 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;
- size_t len;
char path[PATH_MAX];
FILE *fpfile;
int r;
t@@ -546,40 +582,17 @@ writelog(FILE *fp, const git_oid *oid)
git_revwalk_sorting(w, GIT_SORT_TIME);
git_revwalk_simplify_first_parent(w);
- fputs("<table id=\"log\"><thead>\n<tr><td>Date</td><td>Commit message<…
- "<td>Author</td><td class=\"num\">Files</td><td class=\"num\…
- "<td class=\"num\">-</td></tr>\n</thead><tbody>\n", fp);
-
while (!git_revwalk_next(&id, w)) {
relpath = "";
+ if (cachefile && !memcmp(&id, &lastoid, sizeof(id)))
+ break;
if (!(ci = commitinfo_getbyoid(&id)))
break;
- 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, …
- if ((len = strlen(ci->summary)) > summarylen) {
- xmlencode(fp, ci->summary, summarylen - 1);
- fputs("…", fp);
- } else {
- xmlencode(fp, ci->summary, len);
- }
- fputs("</a>", fp);
- }
- fputs("</td><td>", fp);
- if (ci->author)
- xmlencode(fp, ci->author->name, strlen(ci->author->nam…
- fputs("</td><td class=\"num\">", fp);
- fprintf(fp, "%zu", ci->filecount);
- fputs("</td><td class=\"num\">", fp);
- fprintf(fp, "+%zu", ci->addcount);
- fputs("</td><td class=\"num\">", fp);
- fprintf(fp, "-%zu", ci->delcount);
- fputs("</td></tr>\n", fp);
+ writelogline(fp, ci);
+ if (cachefile)
+ writelogline(wcachefp, ci);
relpath = "../";
t@@ -599,8 +612,6 @@ writelog(FILE *fp, const git_oid *oid)
}
commitinfo_free(ci);
}
- fputs("</tbody></table>", fp);
-
git_revwalk_free(w);
relpath = "";
t@@ -1005,6 +1016,13 @@ joinpath(char *buf, size_t bufsiz, const char *path, co…
path, path[0] && path[strlen(path) - 1] != '/' ? "/" :…
}
+void
+usage(char *argv0)
+{
+ fprintf(stderr, "%s [-c cachefile] repodir\n", argv0);
+ exit(1);
+}
+
int
main(int argc, char *argv[])
{
t@@ -1013,12 +1031,23 @@ main(int argc, char *argv[])
const git_error *e = NULL;
FILE *fp, *fpread;
char path[PATH_MAX], repodirabs[PATH_MAX + 1], *p;
-
- if (argc != 2) {
- fprintf(stderr, "%s <repodir>\n", argv[0]);
- return 1;
+ 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 (i + 1 >= argc)
+ usage(argv[0]);
+ cachefile = argv[++i];
+ }
}
- repodir = argv[1];
+ if (!repodir)
+ usage(argv[0]);
if (!realpath(repodir, repodirabs))
err(1, "realpath");
t@@ -1088,9 +1117,51 @@ main(int argc, char *argv[])
/* log for HEAD */
fp = efopen("log.html", "w");
relpath = "";
- writeheader(fp, "Log");
mkdir("commit", 0755);
- writelog(fp, head);
+ writeheader(fp, "Log");
+ fputs("<table id=\"log\"><thead>\n<tr><td>Date</td><td>Commit message<…
+ "<td>Author</td><td class=\"num\">Files</td><td class=\"num\…
+ "<td class=\"num\">-</td></tr>\n</thead><tbody>\n", fp);
+
+ if (cachefile) {
+ /* 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");
+ /* 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)
+ err(1, "fwrite");
+ if (fwrite(buf, 1, n, wcachefp) != n)
+ err(1, "fwrite");
+ }
+ fclose(rcachefp);
+ }
+ fclose(wcachefp);
+ } else {
+ writelog(fp, head);
+ }
+
+ fputs("</tbody></table>", fp);
writefooter(fp);
fclose(fp);
t@@ -1113,6 +1184,10 @@ main(int argc, char *argv[])
writeatom(fp);
fclose(fp);
+ /* rename new cache file on success */
+ if (cachefile && rename(tmppath, cachefile))
+ err(1, "rename: '%s' to '%s'", tmppath, cachefile);
+
/* cleanup */
git_repository_free(repo);
git_libgit2_shutdown();
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