Bitcoin v27.2 - Codebase Metrics
We analyze the Bitcoin v27.2 codebase and get some general metrics.
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Title
Bitcoin v27.2 Codebase Metrics
Executive Summary
We analyze the Bitcoin v27.2 codebase and get some general metrics.
Contents
- Executive Summary
- Contents
- Results
- Sources
- Project Log
Results
Total developers:
1356
Top 20 developers by number of commits:
6797 Wladimir J. van der Laan <laanwj@gmail.com>
5309 MarcoFalke <falke.marco@gmail.com>
3980 fanquake <fanquake@gmail.com>
1934 Pieter Wuille <pieter.wuille@gmail.com>
1836 Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
1209 Gavin Andresen <gavinandresen@gmail.com>
957 Andrew Chow <achow101-github@achow101.com>
889 Luke Dashjr <luke-jr+git@utopios.org>
846 Wladimir J. van der Laan <laanwj@protonmail.com>
827 John Newbery <john@johnnewbery.com>
809 MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz>
793 Cory Fields <cory-nospam-@coryfields.com>
729 practicalswift <practicalswift@users.noreply.github.com>
715 Jon Atack <jon@atack.com>
701 Philip Kaufmann <phil.kaufmann@t-online.de>
629 Jonas Schnelli <dev@jonasschnelli.ch>
569 Matt Corallo <git@bluematt.me>
558 Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
525 MacroFake <falke.marco@gmail.com>
491 glozow <gloriajzhao@gmail.com>
Total branches:
9845
Total files:
2684
Total files by MIME type:
692 text/x-c
658 text/x-c++
609 text/plain
346 text/x-script.python
98 image/png
64 text/x-shellscript
52 text/xml
44 application/json
34 text/x-diff
20 image/svg+xml
18 text/x-m4
7 text/x-makefile
7 text/troff
7 inode/x-empty
6 text/html
5 image/x-xpmi
3 text/csv
3 image/vnd.microsoft.icon
2 text/x-asm
2 image/bmp
2 application/octet-stream
1 text/x-tex
1 text/x-objective-c
1 text/x-java
1 image/x-icns
1 font/sfnt
Total lines by text MIME type:
text/x-c: 184272
text/x-c\+\+: 164702
text/plain: 380564
text/x-script.python: 81611
text/x-shellscript: 8450
text/xml: 21604
text/x-diff: 1664
text/x-m4: 6202
text/x-makefile: 552
text/troff: 2171
text/html: 1151
text/csv: 126
text/x-asm: 925
text/x-tex: 15
text/x-objective-c: 62
text/x-java: 23
Total lines for all text MIME types:
854094
Functional tests runtime:
3328 s
Total Source Lines of Code (SLOC) by MIME type:
text/x-c: 151899
text/x-c\+\+: 138974
text/plain: 335045
text/x-script.python: 2815
text/x-shellscript: 283
text/xml: 20239
text/x-diff:
text/x-m4: 1682
text/x-makefile: 17
text/troff:
text/html: 743
text/csv:
text/x-asm: 925
text/x-tex:
text/x-objective-c: 62
text/x-java: 23
Total SLOC:
652707
Total Test Lines of Code (TLOC) by MIME type:
text/x-c: 31532
text/x-c\+\+: 23949
text/plain: 2092
text/x-script.python: 70787
text/x-shellscript: 185
text/xml: 0
text/x-diff: 0
text/x-m4: 0
text/x-makefile: 6
text/troff: 0
text/html: 40
text/csv: 126
text/x-asm: 0
text/x-tex: 0
text/x-objective-c: 0
text/x-java: 0
Total TLOC:
128717
SLOC line percentage:
76%
TLOC line percentage:
15%
Codebase size (after compilation):
3.7 GB
Subdirectory sizes:
3.4G src/
22M test/
5.1M autom4te.cache/
1.9M doc/
1.0M contrib/
916K build-aux/
568K share/
468K depends/
188K build_msvc/
152K ci/
Subdirectory sizes (2 levels):
3.3G src/
1.4G src/test/
305M src/bench/
121M src/rpc/
85M src/node/
47M src/script/
34M src/leveldb/
30M src/crypto/
29M src/secp256k1/
22M test/
22M src/util/
22M src/index/
20M src/qt/
18M src/common/
17M test/cache/
16M src/kernel/
14M src/policy/
11M src/univalue/
7.3M src/minisketch/
6.7M src/primitives/
5.1M autom4te.cache/
4.9M src/init/
4.2M test/functional/
4.2M src/consensus/
1.9M src/wallet/
1.9M doc/
1.2M doc/release-notes/
1.0M src/support/
1.0M contrib/
916K build-aux/
568K share/
500K share/pixmaps/
468K depends/
444K build-aux/m4/
436K src/crc32c/
348K test/util/
228K contrib/seeds/
200K contrib/guix/
188K build_msvc/
176K contrib/devtools/
152K test/lint/
152K ci/
136K depends/packages/
128K doc/man/
124K depends/patches/
108K ci/test/
104K src/ipc/
80K contrib/tracing/
76K contrib/macdeploy/
72K src/zmq/
68K src/interfaces/
52K src/compat/
40K doc/design/
40K contrib/signet/
40K contrib/completions/
36K depends/hosts/
36K contrib/verify-commits/
36K contrib/verify-binaries/
28K src/config/
28K contrib/linearize/
28K contrib/init/
24K share/examples/
24K doc/policy/
24K depends/builders/
16K test/fuzz/
16K contrib/testgen/
16K build_msvc/libbitcoin_qt/
12K test/sanitizer_suppressions/
12K share/rpcauth/
12K share/qt/
12K contrib/windeploy/
12K contrib/message-capture/
12K ci/retry/
12K ci/lint/
8.0K contrib/shell/
8.0K contrib/qos/
8.0K contrib/debian/
8.0K build_msvc/test_bitcoin/
8.0K build_msvc/test_bitcoin-qt/
8.0K build_msvc/msbuild/
8.0K build_msvc/bitcoind/
4.0K src/obj/
4.0K src/logging/
4.0K contrib/zmq/
4.0K build_msvc/libunivalue/
4.0K build_msvc/libtest_util/
4.0K build_msvc/libsecp256k1/
4.0K build_msvc/libminisketch/
4.0K build_msvc/libleveldb/
4.0K build_msvc/libbitcoin_zmq/
4.0K build_msvc/libbitcoin_wallet_tool/
4.0K build_msvc/libbitcoin_wallet/
4.0K build_msvc/libbitcoin_util/
4.0K build_msvc/libbitcoin_node/
4.0K build_msvc/libbitcoin_crypto/
4.0K build_msvc/libbitcoin_consensus/
4.0K build_msvc/libbitcoin_common/
4.0K build_msvc/libbitcoin_cli/
4.0K build_msvc/bitcoin-wallet/
4.0K build_msvc/bitcoin-util/
4.0K build_msvc/bitcoin-tx/
4.0K build_msvc/bitcoin-qt/
4.0K build_msvc/bitcoin-cli/
4.0K build_msvc/bench_bitcoin/
Selected output:
3.4G src/
1.5G src/test/
[...]
22M test/
[...]
Total size of src without src/test:
1.9 GB
src size percentage:
51%
Total size of src/test + test:
1.522 GB
Total test size percentage:
41%
Test-to-source size ratio:
80%
i.e. test code is 80% of the size of the source code.
Size of the code that is neither source nor tests:
7.5%
Codebase layout:
Tree (1 layer):
├── autom4te.cache
├── build-aux
├── build_msvc
├── ci
├── contrib
├── depends
├── doc
├── share
├── src
└── test
10 directories.
Tree (2 layers):
├── autom4te.cache
├── build-aux
│ └── m4
├── build_msvc
│ ├── bench_bitcoin
│ ├── bitcoin-cli
│ ├── bitcoin-qt
│ ├── bitcoin-tx
│ ├── bitcoin-util
│ ├── bitcoin-wallet
│ ├── bitcoind
│ ├── libbitcoin_cli
│ ├── libbitcoin_common
│ ├── libbitcoin_consensus
│ ├── libbitcoin_crypto
│ ├── libbitcoin_node
│ ├── libbitcoin_qt
│ ├── libbitcoin_util
│ ├── libbitcoin_wallet
│ ├── libbitcoin_wallet_tool
│ ├── libbitcoin_zmq
│ ├── libleveldb
│ ├── libminisketch
│ ├── libsecp256k1
│ ├── libtest_util
│ ├── libunivalue
│ ├── msbuild
│ ├── test_bitcoin
│ └── test_bitcoin-qt
├── ci
│ ├── lint
│ ├── retry
│ └── test
├── contrib
│ ├── completions
│ ├── debian
│ ├── devtools
│ ├── guix
│ ├── init
│ ├── linearize
│ ├── macdeploy
│ ├── message-capture
│ ├── qos
│ ├── seeds
│ ├── shell
│ ├── signet
│ ├── testgen
│ ├── tracing
│ ├── verify-binaries
│ ├── verify-commits
│ ├── windeploy
│ └── zmq
├── depends
│ ├── builders
│ ├── hosts
│ ├── packages
│ └── patches
├── doc
│ ├── design
│ ├── man
│ ├── policy
│ └── release-notes
├── share
│ ├── examples
│ ├── pixmaps
│ ├── qt
│ └── rpcauth
├── src
│ ├── bench
│ ├── common
│ ├── compat
│ ├── config
│ ├── consensus
│ ├── crc32c
│ ├── crypto
│ ├── index
│ ├── init
│ ├── interfaces
│ ├── ipc
│ ├── kernel
│ ├── leveldb
│ ├── logging
│ ├── minisketch
│ ├── node
│ ├── obj
│ ├── policy
│ ├── primitives
│ ├── qt
│ ├── rpc
│ ├── script
│ ├── secp256k1
│ ├── support
│ ├── test
│ ├── univalue
│ ├── util
│ ├── wallet
│ └── zmq
└── test
├── cache
├── functional
├── fuzz
├── lint
├── sanitizer_suppressions
└── util
105 directories.
Deepest directory level:
7
Sources
https://en.bitcoin.it/wiki/Main_Page
https://bitcoin.org/en/bitcoin-core/
https://github.com/bitcoin-dot-org/developer.bitcoin.org
Developer Documentation
https://developer.bitcoin.org
Developer Guides
https://developer.bitcoin.org/reference/index.html
https://github.com/bitcoin/bitcoin/tree/master
Running A Full Node
https://bitcoin.org/en/full-node
Project Log
Bitcoin v27.2 was the latest tagged version at the start of this project.
Environment:
stjohn@spartan ~ % $SHELL --version
zsh 5.9 (x86_64-apple-darwin23.0)
Set up codebase.
# Change to work directory
cd work
# Clone the repo
gh repo clone bitcoin/bitcoin
# Change directory
cd bitcoin
# Get total branches
git branch --all | wc -l
8
# Get latest tag across all branches
git describe --tags $(git rev-list --tags --max-count=1)
v27.2
# Checkout the tagged version
git checkout tags/v27.2
...
HEAD is now at bf03c458e9 Merge bitcoin/bitcoin#31154: [27.x] rc2 or final
Question: Who are the developers ?
# Get number of commits per developer on all branches
git shortlog -s -n -e --all
# How many developers in total ?
git shortlog -s -n -e --all | wc -l
1356
# First 20 results
git shortlog -s -n -e --all | head -20
6797 Wladimir J. van der Laan <laanwj@gmail.com>
5309 MarcoFalke <falke.marco@gmail.com>
3980 fanquake <fanquake@gmail.com>
1934 Pieter Wuille <pieter.wuille@gmail.com>
1836 Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
1209 Gavin Andresen <gavinandresen@gmail.com>
957 Andrew Chow <achow101-github@achow101.com>
889 Luke Dashjr <luke-jr+git@utopios.org>
846 Wladimir J. van der Laan <laanwj@protonmail.com>
827 John Newbery <john@johnnewbery.com>
809 MarcoFalke <*~=`'#}+{/-|&$^_@721217.xyz>
793 Cory Fields <cory-nospam-@coryfields.com>
729 practicalswift <practicalswift@users.noreply.github.com>
715 Jon Atack <jon@atack.com>
701 Philip Kaufmann <phil.kaufmann@t-online.de>
629 Jonas Schnelli <dev@jonasschnelli.ch>
569 Matt Corallo <git@bluematt.me>
558 Sebastian Falbesoner <sebastian.falbesoner@gmail.com>
525 MacroFake <falke.marco@gmail.com>
491 glozow <gloriajzhao@gmail.com>
git shortlog -s -n -e --all > ../developer_list.txt
# List local branches
git branch -r
origin/24.x
origin/25.x
origin/26.x
origin/27.x
origin/28.x
origin/HEAD -> origin/master
origin/master
Question: How many branches are there in total ?
Approach: Calculate the number of commits that exist that are extra children of a commit, and have single parents (i.e. they are not the result of a merge). These are new branches off an existing root. We also count the roots as branches.
( git rev-list --all --children; echo; git rev-list --all --parents --no-merges ) \
| awk '
!doneloading && NF>2 { i=2; while(++i<=NF) branchchild[$i]=1 }
/^$/ { doneloading=1 }
doneloading && (NF==1 || $1 in branchchild) { print $1 }
' | wc -l
Result:
9845
Question: How many files are there, and what are their types ?
A media type (also known as a Multipurpose Internet Mail Extensions or MIME type) indicates the nature and format of a document, file, or assortment of bytes.
# Count files
git ls-files | wc -l
2684
# Count and list the total number of each MIME type
git ls-files | xargs -I {} file --mime-type {} | awk '{print $2}' | sort | uniq -c | sort -nr
692 text/x-c
658 text/x-c++
609 text/plain
346 text/x-script.python
98 image/png
64 text/x-shellscript
52 text/xml
44 application/json
34 text/x-diff
20 image/svg+xml
18 text/x-m4
7 text/x-makefile
7 text/troff
7 inode/x-empty
6 text/html
5 image/x-xpmi
3 text/csv
3 image/vnd.microsoft.icon
2 text/x-asm
2 image/bmp
2 application/octet-stream
1 text/x-tex
1 text/x-objective-c
1 text/x-java
1 image/x-icns
1 font/sfnt
Question: How many lines exist for each file type ?
# Step 1: Count the total number of lines for text/x-c MIME type
git ls-files | xargs -I {} sh -c 'file --mime-type "{}" | grep -E -q "text/x-c$" && wc -l "{}"' | awk '{sum += $1} END {print sum}'
184272
# Write a bash function
count_lines_by_mime() {
mime_types=("$@")
total_lines=0
for mime in "${mime_types[@]}"; do
mime_count=$(git ls-files | xargs -I {} sh -c 'file --mime-type "{}" | grep -E -q "$0$" && wc -l "{}"' "$mime" | awk '{sum += $1} END {print sum}')
echo "Total lines for MIME type $mime: $mime_count"
total_lines=$((total_lines + mime_count))
done
echo "Total lines for all specified MIME types: $total_lines"
}
# Check that the function exists
type count_lines_by_mime
# Print the function
declare -f count_lines_by_mime
# Run function for text/x-c MIME type
count_lines_by_mime "text/x-c"
Total lines for MIME type text/x-c: 184272
Total lines for all specified MIME types: 184272
# Run function for all MIME types found earlier
count_lines_by_mime "text/x-c" "text/x-c\+\+" "text/plain" "text/x-script.python" "text/x-shellscript" "text/xml" "text/x-diff" "text/x-m4" "text/x-makefile" "text/troff" "text/html" "text/csv" "text/x-asm" "text/x-tex" "text/x-objective-c" "text/x-java"
Total lines for MIME type text/x-c: 184272
Total lines for MIME type text/x-c\+\+: 164702
Total lines for MIME type text/plain: 380564
Total lines for MIME type text/x-script.python: 81611
Total lines for MIME type text/x-shellscript: 8450
Total lines for MIME type text/xml: 21604
Total lines for MIME type text/x-diff: 1664
Total lines for MIME type text/x-m4: 6202
Total lines for MIME type text/x-makefile: 552
Total lines for MIME type text/troff: 2171
Total lines for MIME type text/html: 1151
Total lines for MIME type text/csv: 126
Total lines for MIME type text/x-asm: 925
Total lines for MIME type text/x-tex: 15
Total lines for MIME type text/x-objective-c: 62
Total lines for MIME type text/x-java: 23
Total lines for all specified MIME types: 854094
Question: How many source lines of code (SLOC) are there ?
We'll count all the lines in src, excluding src/test.
Write a bash function:
count_lines_by_mime_src() {
target_dir="src"
exclude_dir="src/test"
mime_types=("$@")
total_lines=0
for mime in "${mime_types[@]}"; do
mime_count=$(git ls-files "$target_dir" | grep -v "^$exclude_dir/" \
| xargs -I {} sh -c 'file --mime-type "{}" | grep -E -q "$0$" && wc -l "{}"' "$mime" \
| awk '{sum += $1} END {print sum}')
echo "Total lines for MIME type $mime: $mime_count"
total_lines=$((total_lines + mime_count))
done
echo "Total lines for all specified MIME types: $total_lines"
}
count_lines_by_mime_src "text/x-c" "text/x-c\+\+" "text/plain" "text/x-script.python" "text/x-shellscript" "text/xml" "text/x-diff" "text/x-m4" "text/x-makefile" "text/troff" "text/html" "text/csv" "text/x-asm" "text/x-tex" "text/x-objective-c" "text/x-java"
Total lines for MIME type text/x-c: 151899
Total lines for MIME type text/x-c\+\+: 138974
Total lines for MIME type text/plain: 335045
Total lines for MIME type text/x-script.python: 2815
Total lines for MIME type text/x-shellscript: 283
Total lines for MIME type text/xml: 20239
Total lines for MIME type text/x-diff:
Total lines for MIME type text/x-m4: 1682
Total lines for MIME type text/x-makefile: 17
Total lines for MIME type text/troff:
Total lines for MIME type text/html: 743
Total lines for MIME type text/csv:
Total lines for MIME type text/x-asm: 925
Total lines for MIME type text/x-tex:
Total lines for MIME type text/x-objective-c: 62
Total lines for MIME type text/x-java: 23
Total lines for all specified MIME types: 652707
Question: How many Test Lines of Code (TLOC) are there ?
Write a bash function:
count_lines_by_mime_test() {
target_dirs=("test" "src/test")
mime_types=("$@")
total_lines=0
for mime in "${mime_types[@]}"; do
mime_count=0
for dir in "${target_dirs[@]}"; do
dir_count=$(git ls-files "$dir" \
| xargs -I {} sh -c 'file --mime-type "{}" | grep -E -q "$0$" && wc -l "{}"' "$mime" \
| awk '{sum += $1} END {print sum}')
mime_count=$((mime_count + dir_count))
done
echo "Total lines for MIME type $mime: $mime_count"
total_lines=$((total_lines + mime_count))
done
echo "Total lines for all specified MIME types: $total_lines"
}
count_lines_by_mime_test "text/x-c" "text/x-c\+\+" "text/plain" "text/x-script.python" "text/x-shellscript" "text/xml" "text/x-diff" "text/x-m4" "text/x-makefile" "text/troff" "text/html" "text/csv" "text/x-asm" "text/x-tex" "text/x-objective-c" "text/x-java"
Total lines for MIME type text/x-c: 31532
Total lines for MIME type text/x-c\+\+: 23949
Total lines for MIME type text/plain: 2092
Total lines for MIME type text/x-script.python: 70787
Total lines for MIME type text/x-shellscript: 185
Total lines for MIME type text/xml: 0
Total lines for MIME type text/x-diff: 0
Total lines for MIME type text/x-m4: 0
Total lines for MIME type text/x-makefile: 6
Total lines for MIME type text/troff: 0
Total lines for MIME type text/html: 40
Total lines for MIME type text/csv: 126
Total lines for MIME type text/x-asm: 0
Total lines for MIME type text/x-tex: 0
Total lines for MIME type text/x-objective-c: 0
Total lines for MIME type text/x-java: 0
Total lines for all specified MIME types: 128717
Question: What percentage of the line count is source code and what percentage is test code ?
Total lines = 854094
Total source lines = 652707
Total test lines = 128717
652707 / 854094 ~= 0.76 = 76% source code
128717 / 854094 ~= 0.15 = 15% test code
Question: How many lines are not source or test code ?
854094 - 652707 - 128717 = 72670
72670 / 854094 ~= 0.085 = 8.5% other
Question: What is the size of the codebase ?
Size of current dir:
du -sh .
3.7G .
Size of subdirs in descending order:
du -sh */ | sort -hr
3.4G src/
22M test/
5.1M autom4te.cache/
1.9M doc/
1.0M contrib/
916K build-aux/
568K share/
468K depends/
188K build_msvc/
152K ci/
Size of subdirs (2 levels) in descending order:
du -sh */ */*/ | sort -hr
3.3G src/
1.4G src/test/
305M src/bench/
121M src/rpc/
85M src/node/
47M src/script/
34M src/leveldb/
30M src/crypto/
29M src/secp256k1/
22M test/
22M src/util/
22M src/index/
20M src/qt/
18M src/common/
17M test/cache/
16M src/kernel/
14M src/policy/
11M src/univalue/
7.3M src/minisketch/
6.7M src/primitives/
5.1M autom4te.cache/
4.9M src/init/
4.2M test/functional/
4.2M src/consensus/
1.9M src/wallet/
1.9M doc/
1.2M doc/release-notes/
1.0M src/support/
1.0M contrib/
916K build-aux/
568K share/
500K share/pixmaps/
468K depends/
444K build-aux/m4/
436K src/crc32c/
348K test/util/
228K contrib/seeds/
200K contrib/guix/
188K build_msvc/
176K contrib/devtools/
152K test/lint/
152K ci/
136K depends/packages/
128K doc/man/
124K depends/patches/
108K ci/test/
104K src/ipc/
80K contrib/tracing/
76K contrib/macdeploy/
72K src/zmq/
68K src/interfaces/
52K src/compat/
40K doc/design/
40K contrib/signet/
40K contrib/completions/
36K depends/hosts/
36K contrib/verify-commits/
36K contrib/verify-binaries/
28K src/config/
28K contrib/linearize/
28K contrib/init/
24K share/examples/
24K doc/policy/
24K depends/builders/
16K test/fuzz/
16K contrib/testgen/
16K build_msvc/libbitcoin_qt/
12K test/sanitizer_suppressions/
12K share/rpcauth/
12K share/qt/
12K contrib/windeploy/
12K contrib/message-capture/
12K ci/retry/
12K ci/lint/
8.0K contrib/shell/
8.0K contrib/qos/
8.0K contrib/debian/
8.0K build_msvc/test_bitcoin/
8.0K build_msvc/test_bitcoin-qt/
8.0K build_msvc/msbuild/
8.0K build_msvc/bitcoind/
4.0K src/obj/
4.0K src/logging/
4.0K contrib/zmq/
4.0K build_msvc/libunivalue/
4.0K build_msvc/libtest_util/
4.0K build_msvc/libsecp256k1/
4.0K build_msvc/libminisketch/
4.0K build_msvc/libleveldb/
4.0K build_msvc/libbitcoin_zmq/
4.0K build_msvc/libbitcoin_wallet_tool/
4.0K build_msvc/libbitcoin_wallet/
4.0K build_msvc/libbitcoin_util/
4.0K build_msvc/libbitcoin_node/
4.0K build_msvc/libbitcoin_crypto/
4.0K build_msvc/libbitcoin_consensus/
4.0K build_msvc/libbitcoin_common/
4.0K build_msvc/libbitcoin_cli/
4.0K build_msvc/bitcoin-wallet/
4.0K build_msvc/bitcoin-util/
4.0K build_msvc/bitcoin-tx/
4.0K build_msvc/bitcoin-qt/
4.0K build_msvc/bitcoin-cli/
4.0K build_msvc/bench_bitcoin/
Selected output:
du -sh */ */*/ | sort -hr
3.4G src/
1.5G src/test/
[...]
22M test/
[...]
The total size of src without src/test is:
3.4 - 1.5 = 1.9 GB
This is 1.9 / 3.7 ~= 0.51 = 51% of the codebase size.
Total size of src/test + test is:
1.5 + 0.022 = 1.522 GB
This is
1.522 / 3.7 ~= 0.41 = 41% of the codebase size.
We have a size ratio of:
1.522 / 1.9 ~= 0.8
I.e. Test code is 80% of the size of the source code.
What is the size of the code that is not source or tests ?
3.7 - 3.4 - 0.022 = 0.278 GB
This is 0.278 / 3.7 ~= 0.075 = 7.5% of the codebase size.
Question: What does the layout of the codebase look like ?
admin@horizon bitcoin % tree -d -L 1
.
├── autom4te.cache
├── build-aux
├── build_msvc
├── ci
├── contrib
├── depends
├── doc
├── share
├── src
└── test
11 directories
admin@horizon bitcoin % tree -d -L 2
.
├── autom4te.cache
├── build-aux
│ └── m4
├── build_msvc
│ ├── bench_bitcoin
│ ├── bitcoin-cli
│ ├── bitcoin-qt
│ ├── bitcoin-tx
│ ├── bitcoin-util
│ ├── bitcoin-wallet
│ ├── bitcoind
│ ├── libbitcoin_cli
│ ├── libbitcoin_common
│ ├── libbitcoin_consensus
│ ├── libbitcoin_crypto
│ ├── libbitcoin_node
│ ├── libbitcoin_qt
│ ├── libbitcoin_util
│ ├── libbitcoin_wallet
│ ├── libbitcoin_wallet_tool
│ ├── libbitcoin_zmq
│ ├── libleveldb
│ ├── libminisketch
│ ├── libsecp256k1
│ ├── libtest_util
│ ├── libunivalue
│ ├── msbuild
│ ├── test_bitcoin
│ └── test_bitcoin-qt
├── ci
│ ├── lint
│ ├── retry
│ └── test
├── contrib
│ ├── completions
│ ├── debian
│ ├── devtools
│ ├── guix
│ ├── init
│ ├── linearize
│ ├── macdeploy
│ ├── message-capture
│ ├── qos
│ ├── seeds
│ ├── shell
│ ├── signet
│ ├── testgen
│ ├── tracing
│ ├── verify-binaries
│ ├── verify-commits
│ ├── windeploy
│ └── zmq
├── depends
│ ├── builders
│ ├── hosts
│ ├── packages
│ └── patches
├── doc
│ ├── design
│ ├── man
│ ├── policy
│ └── release-notes
├── share
│ ├── examples
│ ├── pixmaps
│ ├── qt
│ └── rpcauth
├── src
│ ├── bench
│ ├── common
│ ├── compat
│ ├── config
│ ├── consensus
│ ├── crc32c
│ ├── crypto
│ ├── index
│ ├── init
│ ├── interfaces
│ ├── ipc
│ ├── kernel
│ ├── leveldb
│ ├── logging
│ ├── minisketch
│ ├── node
│ ├── obj
│ ├── policy
│ ├── primitives
│ ├── qt
│ ├── rpc
│ ├── script
│ ├── secp256k1
│ ├── support
│ ├── test
│ ├── univalue
│ ├── util
│ ├── wallet
│ └── zmq
└── test
├── cache
├── functional
├── fuzz
├── lint
├── sanitizer_suppressions
└── util
105 directories
Through experimentation, by adding 1 to the -L arg and noting the level beyond which it didn't change, I found that the deepest directory level is 7.
Find greatest depth of directory structure:
find . -type d | awk -F'/' '{print NF-1}' | sort -nr | head -n 1
7
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