how to add secrets to macOS keychain

+ how to move already committed git files to git LFS + fix beamer xcolor bug in ubuntu 22.04
pranabdas · Oct 15, 2023 · 342f7ce · 342f7ce
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diff --git a/.github/workflows/deploy-gh-pages.yml b/.github/workflows/deploy-gh-pages.yml
@@ -16,7 +16,7 @@ jobs:
       group: ${{ github.workflow }}-${{ github.ref }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Prepare Node environment
         uses: actions/setup-node@v3

diff --git a/docs/git.md b/docs/git.md
@@ -609,7 +609,19 @@ not-actual-project-code/* linguist-vendored
 More info [here](
 https://github.com/github/linguist/blob/master/docs/overrides.md).
 
+### Move already committed files to git LFS
+
+Find the commit SHA where the file was added, we need to hash of the commit
+before it (say `eafcece98d772c14a16`). Find more info [here](
+https://hlung.medium.com/migrating-committed-files-to-git-lfs-the-quick-way-7be728e103ff)
+and [here](https://github.com/git-lfs/git-lfs/blob/main/docs/man/git-lfs-migrate.adoc).
+
+```bash
+git lfs migrate import --verbose --include="*.pdf" --include-ref=HEAD --exclude-ref=eafcece98d772c14a16
+```
+
 ## Resources
 
 - <https://git-scm.com/book/en/v2>
 - <https://github.com/pluralsight/git-internals-pdf>
+- [Removing sensitive data from Git/GitHub](https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/removing-sensitive-data-from-a-repository)
diff --git a/docs/index.md b/docs/index.md
@@ -42,5 +42,6 @@ to get a quick summary of various Linux/ UNIX commands.
     - [Privacy and security tips](privacy.md)
     - [LaTeX](latex.md)
     - [Windows Subsystem for Linux](wsl.md)
+    - [More tips and tricks](more-tips-tricks.md)
 + [Resources](resources.md)
 + [License](license.md)
diff --git a/docs/latex.md b/docs/latex.md
@@ -2,18 +2,46 @@
 title: LaTeX
 keywords: ["latex setup", "texlive setup", "texlive installation in ubuntu", "latex installation in ubuntu"]
 ---
+
 ### Installation in Ubuntu/Debian
+
 ```bash
 sudo apt install -y --no-install-recommends \
     texlive-latex-recommended \
     texlive-latex-extra \
     texlive-fonts-extra \
     texlive-science \
     texlive-pictures \
-    texlive-luatex
+    texlive-luatex \
+    texinfo \
+    python3 \
+    python3-pygments \
+    ghostscript
+```
+
+### Fix beamer xcolor bug in Ubuntu 22.04
+
+There is a beamer bug in `v3.65` (shipped with Ubuntu 22.04): named colors are
+not recognized. The bug was fixed in beamer `v3.66`. Below script replaces the
+buggy beamer version:
+
+```bash
+CWD=${PWD}
+sudo apt install --no-install-recommends unzip wget
+cd /tmp
+mkdir beamer && cd $_
+wget https://file-storage.github.io/downloads/beamer.tds-v3.68.zip
+unzip beamer.tds-v3.68.zip
+cd tex/latex
+sudo mv /usr/share/texlive/texmf-dist/tex/latex/beamer /usr/share/texlive/texmf-dist/tex/latex/beamer.bak
+sudo cp -a beamer /usr/share/texlive/texmf-dist/tex/latex
+cd /tmp
+rm -rf beamer
+cd ${CWD}
 ```
 
 ### Misc
+
 - Various Fira font weights: `\firathin`, `\firaultralight`, `\firaextralight`,
 `\firalight`, `\firabook`, `\firamedium`, `\firasemibold`, `\firaextrabold`,
 `\firaheavy`.

diff --git a/docs/more-tips-tricks.md b/docs/more-tips-tricks.md
@@ -0,0 +1,23 @@
+---
+title: More tips and tricks
+---
+
+### Store ENV variables in macOS keychain
+
+Add item to keychain:
+
+```bash
+security add-generic-password -a "$USER" -s 'API_KEY' -w 'xxxxyyyyzzzz'
+```
+
+Get secret from keychain:
+
+```bash
+security find-generic-password -a "$USER" -s 'API_KEY' -w
+```
+
+Automatically export secret variables via `.zshrc` or `.bashrc`:
+
+```bash
+export API_KEY=$(security find-generic-password -a "$USER" -s "API_KEY" -w)
+```