From 739d0da4e3bc30c0acdaa2459f3df9d248bdd78f Mon Sep 17 00:00:00 2001
From: xffxff <1247714429@qq.com>
Date: Mon, 19 Jun 2023 16:08:53 +0800
Subject: [PATCH 1/3] add a link to the old version of Salsa in the document

---
 book/src/caveat.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/book/src/caveat.md b/book/src/caveat.md
index bc3a4607..b48ed3e8 100644
--- a/book/src/caveat.md
+++ b/book/src/caveat.md
@@ -1,3 +1,5 @@
 > ⚠️ **IN-PROGRESS VERSION OF SALSA.** ⚠️
 >
 > This page describes the unreleased "Salsa 2022" version, which is a major departure from older versions of salsa. The code here works but is only available on github and from the `salsa-2022` crate.
+>
+> If you are looking for the older version of salsa, simply visit [this link](https://old-salsa-rs.netlify.app/)

From c3a979f72c569484d299a5bd48bfe9b1eb7ebb56 Mon Sep 17 00:00:00 2001
From: XFFXFF <1247714429@qq.com>
Date: Sun, 29 Oct 2023 10:00:59 +0800
Subject: [PATCH 2/3] deploy both the latest and specified older version of
 salsa book

---
 book/_redirects |  2 ++
 book/netlify.sh | 32 +++++++++++++++++++++++++++++++-
 2 files changed, 33 insertions(+), 1 deletion(-)
 create mode 100644 book/_redirects

diff --git a/book/_redirects b/book/_redirects
new file mode 100644
index 00000000..3db10678
--- /dev/null
+++ b/book/_redirects
@@ -0,0 +1,2 @@
+# Redirects from what the browser requests to what we serve
+/                /salsa2022
\ No newline at end of file
diff --git a/book/netlify.sh b/book/netlify.sh
index aad6c9d7..7f6c3f26 100755
--- a/book/netlify.sh
+++ b/book/netlify.sh
@@ -13,4 +13,34 @@ curl -L https://github.com/badboy/mdbook-mermaid/releases/download/v$MDBOOK_MERM
 curl -L https://github.com/Michael-F-Bryan/mdbook-linkcheck/releases/download/v$MDBOOK_LINKCHECK_VERSION/mdbook-linkcheck.v$MDBOOK_LINKCHECK_VERSION.x86_64-unknown-linux-gnu.zip -O
 unzip mdbook-linkcheck.v$MDBOOK_LINKCHECK_VERSION.x86_64-unknown-linux-gnu.zip -d ~/.cargo/bin
 chmod +x ~/.cargo/bin/mdbook-linkcheck
-mdbook build
\ No newline at end of file
+
+# ======================================================================
+# The following script automates the deployment of both the latest and a
+# specified older version of the 'salsa' documentation using mdbook
+
+# Store the current branch or commit
+original_branch=$(git rev-parse --abbrev-ref HEAD)
+if [ "$original_branch" == "HEAD" ]; then
+  original_branch=$(git rev-parse HEAD)
+fi
+
+mkdir -p versions  # Create a root directory for all versions
+
+# Declare an associative array to map commits to custom version directory names
+declare -A commit_to_version=( ["$original_branch"]="salsa2022" ["754eea8b5f8a31b1100ba313d59e41260b494225"]="salsa" )
+
+# Loop over the keys (commit hashes or branch names) in the associative array
+for commit in "${!commit_to_version[@]}"; do
+  git checkout $commit
+  mdbook build
+  version_dir="versions/${commit_to_version[$commit]}"
+  mkdir -p $version_dir
+  mv book/html/* $version_dir
+  rm -rf book
+done
+
+# Return to the original branch or commit
+git checkout $original_branch
+
+# Copy _redirects to the root directory
+cp _redirects versions

From fa4dc3ccfe687abfb8a1daac44ad2d40536efec9 Mon Sep 17 00:00:00 2001
From: XFFXFF <1247714429@qq.com>
Date: Sun, 29 Oct 2023 10:05:08 +0800
Subject: [PATCH 3/3] update the link to old salsa

---
 book/src/caveat.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/book/src/caveat.md b/book/src/caveat.md
index b48ed3e8..156de317 100644
--- a/book/src/caveat.md
+++ b/book/src/caveat.md
@@ -2,4 +2,4 @@
 >
 > This page describes the unreleased "Salsa 2022" version, which is a major departure from older versions of salsa. The code here works but is only available on github and from the `salsa-2022` crate.
 >
-> If you are looking for the older version of salsa, simply visit [this link](https://old-salsa-rs.netlify.app/)
+> If you are looking for the older version of salsa, simply visit [this link](https://salsa-rs.netlify.app/salsa)