How to print submodules levels/depth

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I got a project with multiple submodules, I want to list for each submodule it depth relatively The project:

main_project
    submodule1
    submodule1\submodule1_1
    submodule1\submodule2_1\submodule2_1_1
    submodule2\submodule2_1\submodule2_1_1\submodule2_1_1_1\
    submodule3

The output I want to get:

submodule1 - level 0
submodule1\submodule1_1 - level 1
submodule1\submodule2_1\submodule2_1_1 - level 2
submodule2\submodule2_1\submodule2_1_1\submodule2_1_1_1\ - level 3
submodule3 - level 0
git
1 Answers
git submodule foreach -q --recursive git rev-parse --git-dir |
    awk '{split($0, a, "/modules/", s); print $0, "- Level", length(s)-1}'

Explanation:

git submodule foreach -q --recursive

Run a command on all submodules recursive.

git rev-parse --git-dir

Run this command for every submodule — show the path to its .git/modules directory. Example:

$ git submodule foreach -q --recursive git rev-parse --git-dir

$root/.git/modules/mod1
$root/.git/modules/mod2
$root/.git/modules/mod3
$root/.git/modules/mod3/modules/subdir/submodule

All modules in the example are level 0 modules, the last one is level 1. Counting slashes wouldn't help as there are subdirectories (a subsubmodule buried deeper than the root of a submodule). Let's count /modules/ with awk:

awk '{split($0, a, "/modules/", s); print $0, "- Level", length(s)-1}'

Every input line is split by /modules/ and the list of separators is put into the array s. Then we just count the number of /modules/ and nicely print the result:

git submodule foreach -q --recursive git rev-parse --git-dir |
    awk '{split($0, a, "/modules/", s); print $0, "- Level", length(s)-1}'

$root/.git/modules/mod1 - Level 0
$root/.git/modules/mod2 - Level 0
$root/.git/modules/mod3 - Level 0
$root/.git/modules/mod3/modules/subdir/submodule - Level 1

Print submodules workdirs:

$ git submodule foreach -q --recursive 'pwd; git rev-parse --git-dir' |
    awk 'NR%2==1 {submodule=$0} NR%2==0 {split($0, a, "/modules/", s); print submodule, "- Level", length(s)-1}':

$root/mod1 - Level 0
$root/third-party/mod2 - Level 0
$root/third-party/mod3 - Level 0
$root/third-party/mod3/subdir/submodule - Level 1
user_79767580
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