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Stefan Beller d1b3b81aab submodule init: warn about falling back to a local path 
When a submodule is initialized, the config variable 'submodule.<name>.url'
is set depending on the value of the same variable in the .gitmodules
file. When the URL indicates to be relative, then the url is computed
relative to its default remote. The default remote cannot be determined
accurately in all cases, such that it falls back to 'origin'.

The 'origin' remote may not exist, though. In that case we give up looking
for a suitable remote and we'll just assume it to be a local relative path.

This can be confusing to users as there is a lot of guessing involved,
which is not obvious to the user.

So in the corner case of assuming a local autoritative truth, warn the
user to lessen the confusion.

This behavior was introduced in 4d6893200 (submodule add: allow relative
repository path even when no url is set, 2011-06-06), which shared the
code with submodule-init and then ported to C in 3604242f08 (submodule:
port init from shell to C, 2016-04-15).

In case of submodule-add, this behavior makes sense in some use cases[1],
however for submodule-init there does not seem to be an immediate obvious
use case to fall back to a local submodule. However there might be, so
warn instead of die here.

While adding the warning, also clarify the behavior of relative URLs in
the documentation.

[1] e.g. http://stackoverflow.com/questions/8721984/git-ignore-files-for-public-repository-but-not-for-private
"store a secret locally in a submodule, with no intention to publish it"

Reported-by: Shawn Pearce <spearce@spearce.org>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-28 13:46:22 -08:00
..
add.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
am.c Merge branch 'sb/sequencer-abort-safety' 2016-12-21 14:55:01 -08:00
annotate.c
apply.c Convert read_mmblob to take struct object_id. 2016-09-07 12:59:42 -07:00
archive.c archive: read local configuration 2016-11-22 13:55:20 -08:00
bisect--helper.c
blame.c Merge branch 'jk/blame-fixes' into maint 2017-01-31 13:32:07 -08:00
branch.c Merge branch 'nd/for-each-ref-ignore-case' 2016-12-19 14:45:31 -08:00
bundle.c
cat-file.c Merge branch 'jk/pack-objects-optim-mru' 2016-10-10 14:03:47 -07:00
check-attr.c give "nbuf" strbuf a more meaningful name 2016-02-01 13:43:02 -08:00
check-ignore.c give "nbuf" strbuf a more meaningful name 2016-02-01 13:43:02 -08:00
check-mailmap.c strbuf: introduce strbuf_getline_{lf,nul}() 2016-01-15 10:12:51 -08:00
check-ref-format.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
checkout-index.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
checkout.c Merge branch 'cw/log-updates-for-all-refs-really' 2017-02-03 11:25:19 -08:00
clean.c i18n: clean.c: match string with git-add--interactive.perl 2016-12-14 11:00:05 -08:00
clone.c Merge branch 'rs/absolute-pathdup' 2017-02-02 13:36:55 -08:00
column.c column: read lines with strbuf_getline() 2016-01-15 10:35:07 -08:00
commit-tree.c builtin/commit-tree: convert to struct object_id 2016-09-07 12:59:43 -07:00
commit.c builtin/commit.c: switch to strbuf, instead of snprintf() 2017-01-31 10:09:00 -08:00
config.c i18n: config: mark error message for translation 2016-09-15 13:17:32 -07:00
count-objects.c alternates: use fspathcmp to detect duplicates 2016-10-10 13:52:37 -07:00
credential.c
describe.c use QSORT 2016-09-29 15:42:18 -07:00
diff-files.c diff: run arguments through precompose_argv 2016-05-13 14:35:49 -07:00
diff-index.c diff: run arguments through precompose_argv 2016-05-13 14:35:49 -07:00
diff-tree.c use SWAP macro 2017-01-30 14:17:00 -08:00
diff.c use SWAP macro 2017-01-30 14:17:00 -08:00
difftool.c difftool: fix bug when printing usage 2017-02-06 10:13:48 -08:00
fast-export.c use QSORT 2016-09-29 15:42:18 -07:00
fetch-pack.c Merge branch 'nd/shallow-deepen' 2016-10-10 14:03:50 -07:00
fetch.c Merge branch 'js/remote-rename-with-half-configured-remote' 2017-01-31 13:14:59 -08:00
fmt-merge-msg.c remove unnecessary check before QSORT 2016-09-29 15:42:18 -07:00
for-each-ref.c tag, branch, for-each-ref: add --ignore-case for sorting and filtering 2016-12-05 14:59:29 -08:00
fsck.c Merge branch 'jk/fsck-connectivity-check-fix' 2017-01-31 13:15:01 -08:00
gc.c auto gc: don't write bitmaps for incremental repacks 2016-12-29 13:45:35 -08:00
get-tar-commit-id.c usage: do not insist that standard input must come from a file 2015-10-16 15:27:52 -07:00
grep.c grep: search history of moved submodules 2016-12-22 11:47:33 -08:00
hash-object.c hash-object: always try to set up the git repository 2016-09-13 15:45:45 -07:00
help.c Merge branch 'js/no-html-bypass-on-windows' into maint 2016-09-08 21:35:55 -07:00
index-pack.c index-pack: skip collision check when not in repository 2016-12-16 13:57:19 -08:00
init-db.c refs: add option core.logAllRefUpdates = always 2017-01-31 10:01:24 -08:00
interpret-trailers.c Merge branch 'jk/parseopt-string-list' into jk/string-list-static-init 2016-06-13 10:37:48 -07:00
log.c Merge branch 'jt/format-patch-rfc' 2016-09-26 16:09:17 -07:00
ls-files.c ls-files: move only kept cache entries in prune_cache() 2017-02-13 12:06:10 -08:00
ls-remote.c ls-remote: add support for showing symrefs 2016-01-19 10:07:56 -08:00
ls-tree.c ls-tree: convert show_recursive to use the pathspec struct interface 2017-01-08 18:04:17 -08:00
mailinfo.c mailinfo: read local configuration 2016-11-22 13:13:16 -08:00
mailsplit.c mailsplit: support unescaping mboxrd messages 2016-06-06 11:14:43 -07:00
merge-base.c merge-base: handle --fork-point without reflog 2016-10-12 14:30:16 -07:00
merge-file.c builtin/merge-file.c: use error_errno() 2016-05-09 12:29:08 -07:00
merge-index.c use oid_to_hex_r() for converting struct object_id hashes to hex strings 2017-01-30 14:23:40 -08:00
merge-ours.c Move 'builtin-*' into a 'builtin/' subdirectory 2010-02-22 14:29:41 -08:00
merge-recursive.c i18n: merge-recursive: mark verbose message for translation 2016-09-15 13:17:32 -07:00
merge-tree.c struct name_entry: use struct object_id instead of unsigned char sha1[20] 2016-04-25 14:23:42 -07:00
merge.c Merge branch 'cp/merge-continue' 2016-12-27 00:11:41 -08:00
mktag.c usage: do not insist that standard input must come from a file 2015-10-16 15:27:52 -07:00
mktree.c use QSORT 2016-09-29 15:42:18 -07:00
mv.c Merge branch 'bw/pathspec-cleanup' 2017-01-18 15:12:15 -08:00
name-rev.c use QSORT 2016-09-29 15:42:18 -07:00
notes.c notes: spell first word of error messages in lowercase 2016-09-15 13:17:32 -07:00
pack-objects.c compression: unify pack.compression configuration parsing 2016-11-15 21:16:22 -08:00
pack-redundant.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
pack-refs.c
patch-id.c Merge branch 'rs/patch-id-use-skip-prefix' 2016-06-03 14:38:03 -07:00
prune-packed.c
prune.c Merge branch 'jk/repository-extension' into maint 2015-11-03 15:32:25 -08:00
pull.c Merge branch 'jc/pull-rebase-ff' into maint 2017-01-17 15:11:05 -08:00
push.c Merge branch 'bw/push-submodule-only' 2017-01-31 13:14:56 -08:00
read-tree.c read-tree: use OPT_BOOL instead of OPT_SET_INT 2017-01-11 13:17:16 -08:00
receive-pack.c Merge branch 'rs/receive-pack-cleanup' 2017-02-02 13:36:57 -08:00
reflog.c struct name_entry: use struct object_id instead of unsigned char sha1[20] 2016-04-25 14:23:42 -07:00
remote-ext.c pkt-line: rename packet_write() to packet_write_fmt() 2016-10-17 11:36:50 -07:00
remote-fd.c
remote.c Merge branch 'js/remote-rename-with-half-configured-remote' 2017-01-31 13:14:59 -08:00
repack.c repack: die on incremental + write-bitmap-index 2016-12-29 13:45:37 -08:00
replace.c Merge branch 'js/replace-edit-use-editor-configuration' into maint 2016-05-06 14:53:24 -07:00
rerere.c Sync with 2.6.1 2015-10-05 13:20:08 -07:00
reset.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
rev-list.c use oid_to_hex_r() for converting struct object_id hashes to hex strings 2017-01-30 14:23:40 -08:00
rev-parse.c Merge branch 'jk/rev-parse-symbolic-parents-fix' 2016-12-16 15:27:47 -08:00
revert.c sequencer: get rid of the subcommand field 2016-10-21 09:32:34 -07:00
rm.c rm: reuse strbuf for all remove_dir_recursively() calls, again 2017-02-13 14:33:32 -08:00
send-pack.c Merge branch 'sk/send-pack-all-fix' into maint 2016-04-29 14:15:57 -07:00
shortlog.c shortlog: group by committer information 2016-12-15 16:19:13 -08:00
show-branch.c show-branch: use QSORT 2016-10-03 12:46:47 -07:00
show-ref.c show-ref: remove a stale comment 2017-01-23 18:51:56 -08:00
stripspace.c stripspace: respect repository config 2016-11-21 11:00:38 -08:00
submodule--helper.c submodule init: warn about falling back to a local path 2017-02-28 13:46:22 -08:00
symbolic-ref.c symbolic-ref -d: do not allow removal of HEAD 2016-09-02 09:01:38 -07:00
tag.c Merge branch 'st/verify-tag' 2017-01-31 13:14:58 -08:00
unpack-file.c convert trivial sprintf / strcpy calls to xsnprintf 2015-09-25 10:18:18 -07:00
unpack-objects.c unpack-objects: add --max-input-size=<size> option 2016-08-24 12:31:05 -07:00
update-index.c hold_locked_index(): align error handling with hold_lockfile_for_update() 2016-12-07 11:31:59 -08:00
update-ref.c
update-server-info.c
upload-archive.c archive: read local configuration 2016-11-22 13:55:20 -08:00
var.c
verify-commit.c
verify-pack.c
verify-tag.c builtin/verify-tag: add --format to verify-tag 2017-01-17 16:10:22 -08:00
worktree.c Merge branch 'ps/worktree-prune-help-fix' 2017-02-10 12:52:25 -08:00
write-tree.c