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tog diff 'p' keymap: show id prefix in diff filename
As suggested by stsp on IRC, this helps identify diffs when several have been written to /tmp with the 'p' keymap. For example, the attached diff was written to /tmp/tog-d6cf760a-22d21277-jtiFFdqfXy.diff I couldn't decide on what label to use when there is no lhs/from version in the diff (e.g., root/initial commits). In the attached diff, we use the term "empty" but I was considering "devnull" as we use "/dev/null" in the diff headers. However, I plan to implement the ":empty" keyword to use as a commit argument in our -c options (cf. :base and :head) to mean no lhs/from version. Although I'm not attached to the label if we can come up with something better. commit 22d21277d1b6185dad4b381ac7a0c59e918423c7 from: Mark Jamsek <mark@jamsek.dev> date: Sat Aug 17 10:32:49 2024 UTC tog diff 'p' keymap: show id prefix in diff filename This helps identify diffs when several have been written. Suggested by stsp on IRC. M tog/tog.c | 24+ 5- 1 file changed, 24 insertions(+), 5 deletions(-) commit - d6cf760a654df954418c577a08765155985c095d commit + 22d21277d1b6185dad4b381ac7a0c59e918423c7 blob - 0f0c5142c308899d47b16880bf3b26d868b72c92 blob + d14762a6fbaec888585b06e5e467bf486f5d07d5 --- tog/tog.c +++ tog/tog.c @@ -5817,11 +5817,12 @@ diff_write_patch(struct tog_view *view) { const struct got_error *err; struct tog_diff_view_state *s = &view->state.diff; - FILE *f; - char buf[BUFSIZ]; - char *path; + FILE *f = NULL; + char buf[BUFSIZ], pathbase[PATH_MAX]; + char *idstr2, *idstr1 = NULL, *path = NULL; size_t r; off_t pos; + int rc; if (s->action != NULL) { free(s->action); @@ -5834,10 +5835,26 @@ diff_write_patch(struct tog_view *view) if (fseeko(s->f, 0L, SEEK_SET) == -1) return got_error_from_errno("fseeko"); - err = got_opentemp_named(&path, &f, GOT_TMPDIR_STR "/tog", ".diff"); + if (s->id1 != NULL) { + err = got_object_id_str(&idstr1, s->id1); + if (err != NULL) + return err; + } + err = got_object_id_str(&idstr2, s->id2); if (err != NULL) - return err; + goto done; + rc = snprintf(pathbase, sizeof(pathbase), "%s/tog-%.8s-%.8s", + GOT_TMPDIR_STR, idstr1 != NULL ? idstr1 : "empty", idstr2); + if (rc < 0 || (size_t)rc >= sizeof(pathbase)) { + err = got_error(rc < 0 ? GOT_ERR_IO : GOT_ERR_NO_SPACE); + goto done; + } + + err = got_opentemp_named(&path, &f, pathbase, ".diff"); + if (err != NULL) + goto done; + while ((r = fread(buf, 1, sizeof(buf), s->f)) > 0) { if (fwrite(buf, 1, r, f) != r) { err = got_ferror(f, GOT_ERR_IO); @@ -5870,6 +5887,8 @@ done: if (f != NULL && fclose(f) == EOF && err == NULL) err = got_error_from_errno2("fclose", path); free(path); + free(idstr1); + free(idstr2); return err; } -- Mark Jamsek <https://bsdbox.org> GPG: F2FF 13DE 6A06 C471 CA80 E6E2 2930 DC66 86EE CF68
tog diff 'p' keymap: show id prefix in diff filename