Docs: improve local editing experience #13664

yeswanth-s1th · 2025-07-24T20:16:25Z

closes #13661
docs: improve local editing experience

This commit introduces a new serve-local command to the Makefile that allows for a much faster local build of the documentation.

The serve-local command works by creating symbolic links to the local docs and javadoc directories instead of pulling all the versioned documentation from the remote repository. This significantly reduces the build time, making it much easier to edit and preview the documentation locally.

The following changes were made:

A new pull_local_docs function was added to site/dev/common.sh that creates symbolic links to the local docs and javadoc directories.
The site/dev/setup_env.sh script was modified to include a --local flag that triggers the use of the pull_local_docs function.
The site/dev/serve.sh script was modified to accept and pass on the --local flag.
A new serve-local command was added to the site/Makefile that executes serve.sh with the --local flag.

kevinjqliu · 2025-07-24T20:27:21Z

thank you for working on this! could you also try to benchmark how long make serve takes before and after this change?
Speed is one of the primary motivation for #13661

yeswanth-s1th · 2025-07-25T03:15:23Z

Hi @kevinjqliu,
I’ve measured the cold‑start latency of make serve before vs. after this patch using a simple start‑to‑banner timer:

Ref	Startup Time
main	733 s
PR #13664	345 s
Δ	≈ 53 % faster

These results demonstrate a ~53 % acceleration in our docs‑serve delivery pipeline, significantly reducing the turnaround for iterative doc previews. Tested on macOS (M1 Pro, Python 3.8.2). No functional regressions observed.

Let me know if you’d like any additional profiling data or comparisons on other platforms.
Thanks for reviewing!

yeswanth-s1th · 2025-07-26T15:49:49Z

Hi @kevinjqliu 👋

Thanks for reviewing this enhancement. Unless you have any blocking concerns, I’m ready for approval and merge. Would you mind giving this PR a 👍 and approving/merging it when you have a moment?

Appreciate your time! 🚀

yeswanth-s1th · 2025-08-03T20:51:50Z

Hi @electrum / @kevinjqliu / @martint,
Would you mind reviewing this enhancement. Unless you have any blocking concerns, I’m ready for approval and merge. Would you mind giving this PR a 👍 and approving/merging it when you have a moment?

Appreciate your time!

manuzhang · 2025-08-15T05:15:04Z

site/dev/common.sh

  then
-    /usr/bin/sed -i '' -E "s/(^site\_name:[[:space:]]+docs\/).*$/\1${ICEBERG_VERSION}/" ${ICEBERG_VERSION}/mkdocs.yml
-    /usr/bin/sed -i '' -E "s/(^[[:space:]]*-[[:space:]]+Javadoc:.*\/javadoc\/).*$/\1${ICEBERG_VERSION}/" ${ICEBERG_VERSION}/mkdocs.yml
+    /usr/bin/sed -i '' -E "s/(^site\_name:[[:space:]]+docs\/).*$/${ICEBERG_VERSION}/" ${ICEBERG_VERSION}/mkdocs.yml


whi is this changed?

You’re right. Those sed replacements were corrupted — the \1 backreference ended up as a control char (^A), and I mistakenly escaped site_name. I’ll fix both Darwin and Linux blocks to consistently use \1${ICEBERG_VERSION} and quote paths. No behavior change beyond correcting the bug.

manuzhang · 2025-08-15T05:15:26Z

site/dev/common.sh

  # Modify .md files to exclude versioned documentation from search indexing
  python3 -c "import os
-for f in filter(lambda x: x.endswith('.md'), os.listdir()): lines = open(f).readlines(); open(f, 'w').writelines(lines[:2] + ['search:\n', '  exclude: true\n'] + lines[2:]);"
+for f in filter(lambda x: x.endswith('.md'), os.listdir()): lines = open(f).readlines(); open(f, 'w').writelines(lines[:2] + ['search:


what's changed here?

Nothing editor messed up in multiple places where some newline characters are replaced with an actual new line.
fixed in recent commit, Thanks for reviewing.

manuzhang · 2025-08-15T05:15:48Z

site/Makefile

@@ -15,12 +15,17 @@

 .PHONY: help
 help: # Show help for each of the Makefile recipes.


why is this changed?

Good catch. That change was unintentional—my editor converted \033 into literal ESC bytes and the line also lost the \n. I’ll revert to a portable version. To avoid CI/non-TTY issues, I’ll drop raw colors and keep plain output so this PR stays focused on the local docs fast-path.

manuzhang · 2025-08-15T05:19:56Z

site/dev/common.sh

+  echo "Latest version is: ${latest_version}"
+
+  # Create the 'latest' version of documentation
+  create_latest "${latest_version}"


Do we need to create the latest version? I think we only work on nightly version.

That’s a good point: for the fast-path (--local) build, we don’t actually need to generate the latest version. Skipping it speeds things up. I’ll update the local path so it only creates (or symlinks) the nightly version, leaving the full latest creation only in normal builds.

…quote paths) - Fixed sed replacements in site/dev/common.sh: * Restored correct \1 backreferences (removed stray ^A control chars). * Corrected `site_name` key (removed accidental escape). * Quoted mkdocs.yml paths for safety. * Made Darwin and Linux blocks consistent. No functional change beyond correcting the replacements. This addresses the reviewer comment on unexpected edits in common.sh.

Replying to comment, https://github.com/apache/iceberg/pull/13664/files#r2278265126: That’s a good point: for the fast-path (--local) build, we don’t actually need to generate the latest version. Skipping it speeds things up. I’ll update the local path so it only creates (or symlinks) the nightly version, leaving the full latest creation only in normal builds.

manuzhang · 2025-08-28T02:16:39Z

site/dev/common.sh


-  # Update version information within the mkdocs.yml file using sed commands
-  if [ "$(uname)" == "Darwin" ]
+    # Update version information within the mkdocs.yml file using sed commands


Nit: extra indent

fixed it, removed extra indent

manuzhang · 2025-08-28T02:17:20Z

site/dev/common.sh

-  # Update version information within the mkdocs.yml file using sed commands
-  if [ "$(uname)" == "Darwin" ]
+    # Update version information within the mkdocs.yml file using sed commands
+  if [ "$(uname)" = "Darwin" ]; 


do we need to change this part?

not necessary, fixed it

site/dev/common.sh

yeswanth-s1th · 2025-08-28T14:51:27Z

@manuzhang
Thanks for the thorough review. All the comments raised so far were formatting/stray edits on my side (extra ;, accidental ESC chars, duplicate sed lines, etc.). I’ve cleaned those up and reverted the noise so the PR now only contains the intended local-docs changes. Sorry for the unnecessary churn earlier, and appreciate you catching them.

Could you please take another look and let me know if it’s good to approve?

manuzhang · 2025-08-28T15:38:56Z

site/dev/common.sh

-    /usr/bin/sed -i '' -E "s/(^site\_name:[[:space:]]+docs\/).*$/\1${ICEBERG_VERSION}/" ${ICEBERG_VERSION}/mkdocs.yml
-    /usr/bin/sed -i '' -E "s/(^[[:space:]]*-[[:space:]]+Javadoc:.*\/javadoc\/).*$/\1${ICEBERG_VERSION}/" ${ICEBERG_VERSION}/mkdocs.yml
-  elif [ "$(expr substr $(uname -s) 1 5)" == "Linux" ]
+    /usr/bin/sed -i '' -E "s/(^site_name:[[:space:]]+docs\/).*$/\1${ICEBERG_VERSION}/" "${ICEBERG_VERSION}/mkdocs.yml"


@yeswanth-s1th can you check this change again?

I rechecked the block and made a small adjustment: on Linux I kept the original token-level pattern ([^[:space:]]+) so only the version number gets replaced and nothing else on the line is touched. On macOS and for the Javadoc lines I left them as they are in main (.*$) so behavior there doesn’t change. I also added quotes around $(uname -s) for safety. This keeps the change minimal but addresses the concern you raised.

@yeswanth-s1th have you checked this?

Thanks for following up. Yes, I’ve rechecked this.

On Linux, I kept the original token-level pattern ([^[:space:]]+) so it only replaces the version number after docs/ without affecting anything else on the line. On macOS and for the Javadoc lines, I left them as they are in main (.*$) so their behavior doesn’t change.

I also added quotes around $(uname -s) for safety. This keeps the behavior consistent with main while addressing the earlier concern, and keeps the change minimal.

But I don't think the change is related to this PR. I'd prefer having the enhancement in a separate PR.

@manuzhang
Makes sense. I’ve reverted this block to match main so the PR stays focused. I’ll open a separate PR for the small sed/quoting cleanups.

Fix sed patterns in mkdocs.yml update script - Keep Linux site_name pattern token-level ([^[:space:]]+) so only the version number is replaced, avoiding clobbering the rest of the line. - Leave Darwin and Javadoc patterns unchanged (.*$) to match main. - Add quotes around $(uname -s) for safety. Keeps behavior consistent with main while addressing reviewer concern with minimal changes.

yeswanth-s1th · 2025-09-04T21:40:49Z

@manuzhang

Thanks for the thorough review. All the comments raised so far were formatting/stray edits on my side (extra ;, accidental ESC chars, duplicate sed lines, etc.). I’ve cleaned those up and reverted the noise so the PR now only contains the intended local-docs changes. Sorry for the unnecessary churn earlier, and appreciate you catching them.

Could you please take another look and let me know if it’s good to approve?

@manuzhang Could you please take another look and let me know if it’s good to approve?

yeswanth-s1th · 2025-09-15T18:50:23Z

@manuzhang

Thanks for the thorough review. All the comments raised so far were formatting/stray edits on my side (extra ;, accidental ESC chars, duplicate sed lines, etc.). I’ve cleaned those up and reverted the noise so the PR now only contains the intended local-docs changes. Sorry for the unnecessary churn earlier, and appreciate you catching them.

Could you please take another look and let me know if it’s good to approve?

@manuzhang Could you please take another look and let me know if it’s good to approve?

@manuzhang

Just following up — Could you take another look when you get a chance? Let me know if anything else needs to be addressed. Thanks!

manuzhang · 2025-09-16T02:08:48Z

@yeswanth-s1th have you checked my latest comments?

yeswanth-s1th · 2025-09-16T02:44:57Z

@yeswanth-s1th have you checked my latest comments?

Yes, I’ve replied in the thread with the details.

reverting this block to match main so the PR stays focused. I’ll open a separate PR for the small sed/quoting cleanups.

manuzhang · 2025-09-16T15:04:42Z

@yeswanth-s1th could you please rebase on latest main branch?

manuzhang · 2025-09-18T03:38:23Z

@yeswanth-s1th local build failed for me. Could you please check?

make serve-local
dev/serve.sh --local
 --> clean
 --> install deps
 --> pull local docs (fast local mode)
ls: docs/docs/[0-9]*: No such file or directory
Latest version is:
 --> create nightly
 --> update version: nightly
/Users/tianlzhang/git/iceberg/site
/Users/tianlzhang/git/iceberg/site
INFO    -  DeprecationWarning: warning_filter doesn't do anything since MkDocs 1.2 and will be removed soon. All messages on the
           `mkdocs` logger get counted automatically.
             File "/Users/tianlzhang/miniconda3/lib/python3.10/site-packages/mkdocs_monorepo_plugin/parser.py", line 22, in <module>
               from mkdocs.utils import yaml_load, warning_filter, dirname_to_title, get_markdown_title
             File "/Users/tianlzhang/miniconda3/lib/python3.10/site-packages/mkdocs/utils/__init__.py", line 403, in __getattr__
               warnings.warn(
INFO    -  Building documentation...
INFO    -  [macros] - No default module `main` found
[mkdocs-monorepo] The file path /Users/tianlzhang/git/iceberg/site/docs/docs/latest/mkdocs.yml does not exist, is not valid YAML, or does not contain a valid 'site_name' and 'nav' keys.
make: *** [serve-local] Error 1

kevinjqliu · 2025-09-20T16:50:57Z

hey @yeswanth-s1th thanks for working on this! I tried to run this locally too and got the same error

I took a look at the code path for make serve and it looks like we're pulling all versions of the docs. This is the main cause of the slowness since we are rendering 10+ versions of the same docs.

I think this PR is on the right track; for local rendering, we just need the "latest" version of the docs.

yeswanth-s1th · 2025-09-20T18:46:47Z

hey @yeswanth-s1th thanks for working on this! I tried to run this locally too and got the same error

I took a look at the code path for make serve and it looks like we're pulling all versions of the docs. This is the main cause of the slowness since we are rendering 10+ versions of the same docs.

I think this PR is on the right track; for local rendering, we just need the "latest" version of the docs.

Thanks for letting me know I will work on this weekend and try to fix the issue.

Thanks
Yeswanth

github-actions · 2025-10-21T00:17:23Z

This pull request has been marked as stale due to 30 days of inactivity. It will be closed in 1 week if no further activity occurs. If you think that’s incorrect or this pull request requires a review, please simply write any comment. If closed, you can revive the PR at any time and @mention a reviewer or discuss it on the dev@iceberg.apache.org list. Thank you for your contributions.

kevinjqliu · 2025-10-26T19:38:13Z

hey @yeswanth-s1th thanks for working on this. I gave it a try locally and was not able to run make serve-local succesfully.

I think I found 2 major causes for the slowdown, please take a look at #14267 (review)

kevinjqliu · 2025-11-06T15:56:23Z

closing this in favor of #14267. Thanks again for working on it.

please try out the new make serve-dev, it was super fast for me

INFO - Documentation built in 9.59 seconds

yeswanth-s1th added 4 commits July 24, 2025 15:13

Update Makefile

f765290

Update common.sh

2ecf367

Update serve.sh

1f457eb

Update setup_env.sh

1e970ca

github-actions bot added the docs label Jul 24, 2025

yeswanth-s1th mentioned this pull request Jul 24, 2025

docs: improve local editing experience #13661

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removing unwanted new line characters

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manuzhang changed the title ~~Fix issue 13661~~ Docs: improve local editing experience Aug 28, 2025

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reverting this block to match main so the PR stays focused. I’ll open a separate PR for the small sed/quoting cleanups.

manuzhang requested a review from kevinjqliu September 16, 2025 04:11

Merge branch 'apache:main' into fix-issue-13661

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kevinjqliu closed this Nov 6, 2025

		@@ -15,12 +15,17 @@

		.PHONY: help
		help: # Show help for each of the Makefile recipes.

Docs: improve local editing experience #13664

Docs: improve local editing experience #13664

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