patchdoc: Correct man page for the SHAs reported by 'submodule status'

The documentation is currently incorrect, it talks about the checked out SHAs when git submodule status actually reports the superproject's tracked SHAs.

It's possible (but unlikely IMO) that we should change the behavior of the tool to match the documentation. A flag for this behavior may be useful.

Manish Goregaokar (1):
  Documentation: Correct man page for the SHAs reported by 'submodule
    status'

 Documentation/git-submodule.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

base-commit: 5fa0f5238b0cd46cfe7f6fa76c3f526ea98148d9
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-470%2FManishearth%2Fsubmodule-sha-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-470/Manishearth/submodule-sha-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/470

From: Manish Goregaokar <manishsmail@gmail.com>

'git submodule status' reports the SHAs expected by the parent project, not the SHAs that are actually checked out in the submodule. Checking out a new SHA in a submodule will not change the output of 'git submodule status' until you 'git add' the submodule.

Signed-off-by: Manish Goregaokar <manishsmail@gmail.com>
---
 Documentation/git-submodule.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

"Manish Goregaokar via GitGitGadget" <gitgitgadget@gmail.com> writes:

Am I mistaken to say that neither the old or the new description is correct, depending on the use (or non-use) of the --cached option?

	... print the object name of the commit that is currently
	checked out, or the commit that is recorded in the
	superproject if `--cached` option is given, for each
	submodule, ...

perhaps?

Turns out that I've found a bug! I was getting this behavior because it wasn't detecting that submodules were modified. I'll submit a patch shortly, but first fix this one since the documentation should be fixed regardless.

Thanks, -Manish Goregaokar

-Manish Goregaokar

On Fri, Nov 22, 2019 at 5:21 PM Junio C Hamano <gitster@pobox.com> wrote:

It's currently undocumented, and should be mentioned.

I previously thought that git submodule status was displaying the behaviors of git submodule status --cached and was thus incorrectly documented, but that wasn't actually the case: turns out that git submodule status just doesn't work when not in the root directory.

Manish Goregaokar (1):
  doc: Document 'git submodule status --cached'

 Documentation/git-submodule.txt | 3 +++
 1 file changed, 3 insertions(+)

base-commit: 5fa0f5238b0cd46cfe7f6fa76c3f526ea98148d9
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-470%2FManishearth%2Fsubmodule-sha-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-470/Manishearth/submodule-sha-v2
Pull-Request: https://github.com/gitgitgadget/git/pull/470

Range-diff vs v1:

 1:  0eabb27ba0 ! 1:  3168924c3c Documentation: Correct man page for the SHAs reported by 'submodule status'
     @@ -1,11 +1,9 @@
      Author: Manish Goregaokar <manishsmail@gmail.com>
      
     -    Documentation: Correct man page for the SHAs reported by 'submodule status'
     +    doc: Document 'git submodule status --cached'
      
     -    'git submodule status' reports the SHAs expected by the parent project,
     -    not the SHAs that are actually checked out in the submodule. Checking
     -    out a new SHA in a submodule will not change the output of 'git
     -    submodule status' until you 'git add' the submodule.
     +    'git submodule status --cached' reports the SHAs expected by the parent project,
     +    instead of the SHAs that are actually checked out in the submodule.
      
          Signed-off-by: Manish Goregaokar <manishsmail@gmail.com>
      
     @@ -13,13 +11,12 @@
       --- a/Documentation/git-submodule.txt
       +++ b/Documentation/git-submodule.txt
      @@
     - URL in `.gitmodules`.
     - 
     - status [--cached] [--recursive] [--] [<path>...]::
     --	Show the status of the submodules. This will print the SHA-1 of the
     --	currently checked out commit for each submodule, along with the
     -+	Show the status of the submodules. This will print the SHA-1
     -+	recorded in the superproject for each submodule, along with the
     - 	submodule path and the output of 'git describe' for the
     - 	SHA-1. Each SHA-1 will possibly be prefixed with `-` if the submodule is
     - 	not initialized, `+` if the currently checked out submodule commit
     + 	does not match the SHA-1 found in the index of the containing
     + 	repository and `U` if the submodule has merge conflicts.
     + +
     ++If `--cached` is specified, this command will instead print the SHA-1
     ++recorded in the superproject for each submodule.
     +++
     + If `--recursive` is specified, this command will recurse into nested
     + submodules, and show their status as well.
     + +

From: Manish Goregaokar <manishsmail@gmail.com>

'git submodule status --cached' reports the SHAs expected by the parent project, instead of the SHAs that are actually checked out in the submodule.

Signed-off-by: Manish Goregaokar <manishsmail@gmail.com>
---
 Documentation/git-submodule.txt | 3 +++
 1 file changed, 3 insertions(+)