Differences

This shows you the differences between two versions of the page.

--- git [2024/04/11 16:58] – [git at dlma.com] dblume
+++ git [2025/07/08 16:13] (current) – [Building Git] dblume
@@ Line 1: / Line 1: @@
 ====== git ======
+===== Building Git =====
+In Ubuntu, get some dev libs first:
+<code bash>
+sudo apt-get install libssl-dev libcurl4-gnutls-dev gettext
+</code>
+There was [[https://lore.kernel.org/git/xmqq5xg2wrd1.fsf@gitster.g/|a security fix in 2.50.1]], so here we get that one:
+<code bash>
+git clone --filter=blob:none -b v2.50.1 --single-branch --no-tags https://github.com/git/git
+# or: git clone --branch v2.50.1 --depth 1 https://github.com/git/git
+# or even: wget https://www.kernel.org/pub/software/scm/git/git-2.50.1.tar.xz
+make prefix=$HOME/.local -j$(nproc)
+make prefix=$HOME/.local install
+</code>
+This will put git in ''$HOME/.local/bin/''
+===== Using Git =====
 Make the clone of the remote repository.
@@ Line 210: / Line 231: @@
 git$ cd testcode.git/
 testcode.git$ git init --bare
+testcode.git$ git config pack.threads 8  # Otherwise clone might fail with "unable to create thread"
 </code>
@@ Line 250: / Line 272: @@
 The submodule one is an optimization for the more general:
+<code bash>
+git submodule update --recursive  # Add --init before --recursive on first time
+</code>
+====== Submodules ======
+[[https://www.cyberdemon.org/2024/03/20/submodules.html|Demystifying git submodules]] is [[https://social.jvns.ca/@b0rk/112604915327918216|summarized by Julia Evans in a 'zine page here]].
+Cloning a repo doesn't download its submodules. After cloning, run:
+<code bash>
+git submodule update --init --recursive
+</code>
+Git pull and checkout don't update submodules. To actually update them, you have to run the following every time you switch branches or pull.
 <code bash>
 git submodule update --recursive  # Add --init before --recursive on first time