[PATCH v3 16/21] repack: handle optional files created by pack-objects
From: Jeff King <hidden>
Date: 2016-06-15 22:59:15
Subsystem:
the rest · Maintainer:
Linus Torvalds
We ask pack-objects to pack to a set of temporary files, and then rename them into place. Some files that pack-objects creates may be optional (like a .bitmap file), in which case we would not want to call rename(). We already call stat() and make the chmod optional if the file cannot be accessed. We could simply skip the rename step in this case, but that would be a minor regression in noticing problems with non-optional files (like the .pack and .idx files). Instead, we can now annotate extensions as optional, and skip them if they don't exist (and otherwise rely on rename() to barf). Signed-off-by: Jeff King <redacted> --- builtin/repack.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/builtin/repack.c b/builtin/repack.c
index a176de2..8b7dfd0 100644
--- a/builtin/repack.c
+++ b/builtin/repack.c@@ -117,6 +117,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) { struct { const char *name; + unsigned optional:1; } exts[] = { {".pack"}, {".idx"},
@@ -323,6 +324,7 @@ int cmd_repack(int argc, const char **argv, const char *prefix) for (ext = 0; ext < ARRAY_SIZE(exts); ext++) { char *fname, *fname_old; struct stat statbuffer; + int exists = 0; fname = mkpathdup("%s/pack-%s%s", packdir, item->string, exts[ext].name); fname_old = mkpathdup("%s-%s%s",
@@ -330,9 +332,12 @@ int cmd_repack(int argc, const char **argv, const char *prefix) if (!stat(fname_old, &statbuffer)) { statbuffer.st_mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH); chmod(fname_old, statbuffer.st_mode); + exists = 1; + } + if (exists || !exts[ext].optional) { + if (rename(fname_old, fname)) + die_errno(_("renaming '%s' failed"), fname_old); } - if (rename(fname_old, fname)) - die_errno(_("renaming '%s' failed"), fname_old); free(fname); free(fname_old); }
--
1.8.5.rc0.443.g2df7f3f