stagit

custom fork of stagit
Index Commits Files Refs README LICENSE
commit e10f79ad2afa61294c90c4e9ae361aa2b086cf9d
parent c226554b64a9529296b690d827966ccf139336bd
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date:   Sun,  3 Jan 2016 21:06:03 +0100

add refs page (branches and tags)

quite some code is added, this will be cleaned up in a following code iteration.

- make sure to free some more allocated git objects.
- use fputs() asmuch as possible instead of fprintf().
- code cleanup

Diffstat:
MTODO | 1+
Mstagit.c | 282++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------
2 files changed, 251 insertions(+), 32 deletions(-)
diff --git a/TODO b/TODO
@@ -4,6 +4,7 @@ performance:
 
 layout:
 - make top menu look nicer in links/lynx again.
+- show tags in log.
 
 documentation:
 - improve mandoc pages.
diff --git a/stagit.c b/stagit.c
@@ -264,7 +264,8 @@ writeheader(FILE *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=\"%sfiles.html\">Files</a> | ", relpath);
+    fprintf(fp, "<a href=\"%srefs.html\">Refs</a>", relpath);
     if (hasreadme)
         fprintf(fp, " | <a href=\"%sfile/README.html\">README</a>", relpath);
     if (haslicense)
@@ -283,7 +284,7 @@ writefooter(FILE *fp)
 void
 writeblobhtml(FILE *fp, const git_blob *blob)
 {
-    off_t i = 0;
+    off_t i;
     size_t n = 1;
     char *nfmt = "<a href=\"#l%d\" id=\"l%d\">%d</a>\n";
     const char *s = git_blob_rawcontent(blob);
@@ -293,12 +294,11 @@ writeblobhtml(FILE *fp, const git_blob *blob)
 
     if (len) {
         fprintf(fp, nfmt, n, n, n);
-        while (i < len - 1) {
+        for (i = 0; i < len - 1; i++) {
             if (s[i] == '\n') {
                 n++;
                 fprintf(fp, nfmt, n, n, n);
             }
-            i++;
         }
     }
 
@@ -319,7 +319,7 @@ printcommit(FILE *fp, struct commitinfo *ci)
 
 #if 0
     if ((count = (int)git_commit_parentcount(commit)) > 1) {
-        fprintf(fp, "<b>Merge:</b>");
+        fputs("<b>Merge:</b>", fp);
         for (i = 0; i < count; i++) {
             git_oid_tostr(buf, 8, git_commit_parent_id(commit, i));
             fprintf(fp, " <a href=\"%scommit/%s.html\">%s</a>",
@@ -329,9 +329,9 @@ printcommit(FILE *fp, struct commitinfo *ci)
     }
 #endif
     if (ci->author) {
-        fprintf(fp, "<b>Author:</b> ");
+        fputs("<b>Author:</b> ", fp);
         xmlencode(fp, ci->author->name, strlen(ci->author->name));
-        fprintf(fp, " &lt;<a href=\"mailto:");
+        fputs(" &lt;<a href=\"mailto:", fp);
         xmlencode(fp, ci->author->email, strlen(ci->author->email));
         fputs("\">", fp);
         xmlencode(fp, ci->author->email, strlen(ci->author->email));
@@ -377,7 +377,7 @@ printshowfile(struct commitinfo *ci)
         if (!git_diff_stats_to_buf(&statsbuf, ci->stats,
             GIT_DIFF_STATS_FULL | GIT_DIFF_STATS_SHORT, 80)) {
             if (statsbuf.ptr && statsbuf.ptr[0]) {
-                fprintf(fp, "<b>Diffstat:</b>\n");
+                fputs("<b>Diffstat:</b>\n", fp);
                 fputs(statsbuf.ptr, fp);
             }
         }
@@ -431,24 +431,30 @@ printshowfile(struct commitinfo *ci)
     }
     git_buf_free(&statsbuf);
 
-    fputs( "</pre>\n", fp);
+    fputs("</pre>\n", fp);
     writefooter(fp);
     fclose(fp);
     return;
 }
 
-void
-writelog(FILE *fp)
+int
+writelog(FILE *fp, const char *branch)
 {
     struct commitinfo *ci;
+    const git_oid *oid;
     git_revwalk *w = NULL;
+    git_object *obj = NULL;
     git_oid id;
     size_t len;
 
     mkdir("commit", 0755);
 
+    if (git_revparse_single(&obj, repo, branch))
+        return -1;
+    oid = git_object_id(obj);
+
     git_revwalk_new(&w, repo);
-    git_revwalk_push_head(w);
+    git_revwalk_push(w, oid);
     git_revwalk_sorting(w, GIT_SORT_TIME);
     git_revwalk_simplify_first_parent(w);
 
@@ -491,10 +497,14 @@ writelog(FILE *fp)
 
         commitinfo_free(ci);
     }
-    fprintf(fp, "</tbody></table>");
+    fputs("</tbody></table>", fp);
 
     git_revwalk_free(w);
+    git_object_free(obj);
+
     relpath = "";
+
+    return 0;
 }
 
 void
@@ -521,7 +531,7 @@ printcommitatom(FILE *fp, struct commitinfo *ci)
 
 #if 0
     if ((count = (int)git_commit_parentcount(commit)) > 1) {
-        fprintf(fp, "Merge:");
+        fputs("Merge:", fp);
         for (i = 0; i < count; i++) {
             git_oid_tostr(buf, 8, git_commit_parent_id(commit, i));
             fprintf(fp, " %s", buf);
@@ -531,11 +541,11 @@ printcommitatom(FILE *fp, struct commitinfo *ci)
 #endif
 
     if (ci->author) {
-        fprintf(fp, "Author: ");
+        fputs("Author: ", fp);
         xmlencode(fp, ci->author->name, strlen(ci->author->name));
-        fprintf(fp, " &lt;");
+        fputs(" &lt;", fp);
         xmlencode(fp, ci->author->email, strlen(ci->author->email));
-        fprintf(fp, "&gt;\nDate:   ");
+        fputs("&gt;\nDate:   ", fp);
         printtime(fp, &(ci->author->when));
     }
     fputc('\n', fp);
@@ -619,7 +629,7 @@ writeblob(git_object *obj, const char *filename, git_off_t filesize)
     fputs("</p><hr/>", fp);
 
     if (git_blob_is_binary((git_blob *)obj)) {
-        fprintf(fp, "<p>Binary file</p>\n");
+        fputs("<p>Binary file</p>\n", fp);
     } else {
         writeblobhtml(fp, (git_blob *)obj);
         if (ferror(fp))
@@ -676,7 +686,7 @@ filemode(git_filemode_t m)
 }
 
 int
-writefilestree(FILE *fp, git_tree *tree, const char *path)
+writefilestree(FILE *fp, git_tree *tree, const char *branch, const char *path)
 {
     const git_tree_entry *entry = NULL;
     const char *filename;
@@ -690,15 +700,15 @@ writefilestree(FILE *fp, git_tree *tree, const char *path)
     for (i = 0; i < count; i++) {
         if (!(entry = git_tree_entry_byindex(tree, i)))
             return -1;
-
-        filename = git_tree_entry_name(entry);
         if (git_tree_entry_to_object(&obj, repo, entry))
             return -1;
+        filename = git_tree_entry_name(entry);
         switch (git_object_type(obj)) {
         case GIT_OBJ_BLOB:
             break;
         case GIT_OBJ_TREE:
-            ret = writefilestree(fp, (git_tree *)obj, filename);
+            ret = writefilestree(fp, (git_tree *)obj, branch,
+                                 filename);
             git_object_free(obj);
             if (ret)
                 return ret;
@@ -708,7 +718,8 @@ writefilestree(FILE *fp, git_tree *tree, const char *path)
             continue;
         }
         if (path[0]) {
-            snprintf(filepath, sizeof(filepath), "%s/%s", path, filename);
+            snprintf(filepath, sizeof(filepath), "%s/%s",
+                     path, filename);
             filename = filepath;
         }
 
@@ -731,42 +742,221 @@ writefilestree(FILE *fp, git_tree *tree, const char *path)
 }
 
 int
-writefiles(FILE *fp)
+writefiles(FILE *fp, const char *branch)
 {
     const git_oid *id;
     git_tree *tree = NULL;
     git_object *obj = NULL;
     git_commit *commit = NULL;
+    int ret = -1;
 
     fputs("<table id=\"files\"><thead>\n<tr>"
           "<td>Mode</td><td>Name</td><td class=\"num\">Size</td>"
           "</tr>\n</thead><tbody>\n", fp);
 
-    if (git_revparse_single(&obj, repo, "HEAD"))
-        return -1;
+    if (git_revparse_single(&obj, repo, branch))
+        goto err;
     id = git_object_id(obj);
     if (git_commit_lookup(&commit, repo, id))
-        return -1;
+        goto err;
     if (git_commit_tree(&tree, commit)) {
         git_commit_free(commit);
-        return -1;
+        goto err;
     }
-    git_commit_free(commit);
+    ret = writefilestree(fp, tree, branch, "");
 
-    writefilestree(fp, tree, "");
+err:
+    fputs("</tbody></table>", fp);
 
+    git_object_free(obj);
     git_commit_free(commit);
     git_tree_free(tree);
 
+    return ret;
+}
+
+int
+writebranches(FILE *fp)
+{
+    struct commitinfo *ci;
+    git_branch_iterator *it = NULL;
+    git_branch_t branch;
+    git_reference *ref = NULL, *dref = NULL;
+    const git_oid *id = NULL;
+    const char *branchname = NULL;
+    size_t len;
+    int ret = -1;
+
+    /* log for local branches */
+    if (git_branch_iterator_new(&it, repo, GIT_BRANCH_LOCAL))
+        return -1;
+
+    fputs("<h2>Branches</h2><table id=\"branches\"><thead>\n<tr><td>Branch</td><td>Age</td>"
+          "<td>Commit message</td>"
+          "<td>Author</td><td>Files</td><td class=\"num\">+</td>"
+          "<td class=\"num\">-</td></tr>\n</thead><tbody>\n", fp);
+
+    while (!git_branch_next(&ref, &branch, it)) {
+        if (git_branch_name(&branchname, ref))
+            continue;
+
+        id = NULL;
+        switch (git_reference_type(ref)) {
+        case GIT_REF_SYMBOLIC:
+            if (git_reference_resolve(&dref, ref))
+                goto err;
+            id = git_reference_target(dref);
+            break;
+        case GIT_REF_OID:
+            id = git_reference_target(ref);
+            break;
+        default:
+            continue;
+        }
+        if (!id)
+            goto err;
+        if (!(ci = commitinfo_getbyoid(id)))
+            break;
+
+        relpath = "";
+
+        fputs("<tr><td>", fp);
+        xmlencode(fp, branchname, strlen(branchname));
+        fputs("</td><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);
+
+        relpath = "../";
+
+        commitinfo_free(ci);
+        git_reference_free(ref);
+        git_reference_free(dref);
+        ref = NULL;
+        dref = NULL;
+    }
+    ret = 0;
+
+err:
     fputs("</tbody></table>", fp);
+    git_reference_free(ref);
+    git_reference_free(dref);
+    git_branch_iterator_free(it);
+
+    return ret;
+}
+
+int
+tagcompare(void *s1, void *s2)
+{
+    return strcmp(*(char **)s1, *(char **)s2);
+}
+
+int
+writetags(FILE *fp)
+{
+    struct commitinfo *ci;
+    git_strarray tagnames;
+    git_object *obj = NULL;
+    const git_oid *id = NULL;
+    size_t i, len;
+
+    fputs("<h2>Tags</h2><table id=\"branches\"><thead>\n<tr><td>Tag</td>"
+          "<td>Age</td><td>Commit message</td>"
+          "<td>Author</td><td>Files</td><td class=\"num\">+</td>"
+          "<td class=\"num\">-</td></tr>\n</thead><tbody>\n", fp);
+
+    /* summary page with branches and tags */
+    memset(&tagnames, 0, sizeof(tagnames));
+    git_tag_list(&tagnames, repo);
+    /* sort names */
+    qsort(tagnames.strings, tagnames.count, sizeof(char *),
+          (int (*)(const void *, const void *))&tagcompare);
+    for (i = 0; i < tagnames.count; i++) {
+        if (git_revparse_single(&obj, repo, tagnames.strings[i]))
+            continue;
+        id = git_object_id(obj);
+        if (!(ci = commitinfo_getbyoid(id)))
+            break;
+
+        relpath = "";
+
+        fputs("<tr><td>", fp);
+        xmlencode(fp, tagnames.strings[i], strlen(tagnames.strings[i]));
+        fputs("</td><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);
+
+        relpath = "../";
+
+        commitinfo_free(ci);
+        git_object_free(obj);
+    }
+    fputs("</tbody></table>", fp);
+    git_strarray_free(&tagnames);
 
     return 0;
 }
 
 int
+writerefs(FILE *fp)
+{
+    int ret;
+
+    if ((ret = writebranches(fp)))
+        return ret;
+    return writetags(fp);
+}
+
+int
 main(int argc, char *argv[])
 {
     git_object *obj = NULL;
+    git_branch_iterator *it = NULL;
+    git_branch_t branch;
+    git_reference *ref = NULL;
+    const char *branchname = NULL;
     const git_error *e = NULL;
     FILE *fp, *fpread;
     char path[PATH_MAX], *p;
@@ -827,15 +1017,43 @@ main(int argc, char *argv[])
     hasreadme = !git_revparse_single(&obj, repo, "HEAD:README");
     git_object_free(obj);
 
+    /* log for HEAD */
     fp = efopen("log.html", "w");
     writeheader(fp);
-    writelog(fp);
+    writelog(fp, "HEAD");
     writefooter(fp);
     fclose(fp);
 
+    /* log for local branches */
+    if (git_branch_iterator_new(&it, repo, GIT_BRANCH_LOCAL))
+        err(1, "git_branch_iterator_new");
+
+    while (!git_branch_next(&ref, &branch, it)) {
+        if (git_branch_name(&branchname, ref))
+            continue;
+
+        snprintf(path, sizeof(path), "log-%s.html", branchname);
+
+        fp = efopen(path, "w");
+        writeheader(fp);
+        writelog(fp, branchname);
+        writefooter(fp);
+        fclose(fp);
+    }
+    git_reference_free(ref);
+    git_branch_iterator_free(it);
+
+    /* files for HEAD */
     fp = efopen("files.html", "w");
     writeheader(fp);
-    writefiles(fp);
+    writefiles(fp, "HEAD");
+    writefooter(fp);
+    fclose(fp);
+
+    /* summary page with branches and tags */
+    fp = efopen("refs.html", "w");
+    writeheader(fp);
+    writerefs(fp);
     writefooter(fp);
     fclose(fp);