From 698f8c2f01ea549d77d7dc3338a12e04c11057b9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:02:58 +0200
Subject: Adding upstream version 1.64.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 library/test/src/term/terminfo/searcher.rs | 69 ++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 library/test/src/term/terminfo/searcher.rs

(limited to 'library/test/src/term/terminfo/searcher.rs')

diff --git a/library/test/src/term/terminfo/searcher.rs b/library/test/src/term/terminfo/searcher.rs
new file mode 100644
index 000000000..68e181a68
--- /dev/null
+++ b/library/test/src/term/terminfo/searcher.rs
@@ -0,0 +1,69 @@
+//! ncurses-compatible database discovery.
+//!
+//! Does not support hashed database, only filesystem!
+
+use std::env;
+use std::fs;
+use std::path::PathBuf;
+
+#[cfg(test)]
+mod tests;
+
+/// Return path to database entry for `term`
+#[allow(deprecated)]
+pub(crate) fn get_dbpath_for_term(term: &str) -> Option<PathBuf> {
+    let mut dirs_to_search = Vec::new();
+    let first_char = term.chars().next()?;
+
+    // Find search directory
+    if let Some(dir) = env::var_os("TERMINFO") {
+        dirs_to_search.push(PathBuf::from(dir));
+    }
+
+    if let Ok(dirs) = env::var("TERMINFO_DIRS") {
+        for i in dirs.split(':') {
+            if i == "" {
+                dirs_to_search.push(PathBuf::from("/usr/share/terminfo"));
+            } else {
+                dirs_to_search.push(PathBuf::from(i));
+            }
+        }
+    } else {
+        // Found nothing in TERMINFO_DIRS, use the default paths:
+        // According to  /etc/terminfo/README, after looking at
+        // ~/.terminfo, ncurses will search /etc/terminfo, then
+        // /lib/terminfo, and eventually /usr/share/terminfo.
+        // On Haiku the database can be found at /boot/system/data/terminfo
+        if let Some(mut homedir) = env::home_dir() {
+            homedir.push(".terminfo");
+            dirs_to_search.push(homedir)
+        }
+
+        dirs_to_search.push(PathBuf::from("/etc/terminfo"));
+        dirs_to_search.push(PathBuf::from("/lib/terminfo"));
+        dirs_to_search.push(PathBuf::from("/usr/share/terminfo"));
+        dirs_to_search.push(PathBuf::from("/boot/system/data/terminfo"));
+    }
+
+    // Look for the terminal in all of the search directories
+    for mut p in dirs_to_search {
+        if fs::metadata(&p).is_ok() {
+            p.push(&first_char.to_string());
+            p.push(&term);
+            if fs::metadata(&p).is_ok() {
+                return Some(p);
+            }
+            p.pop();
+            p.pop();
+
+            // on some installations the dir is named after the hex of the char
+            // (e.g., macOS)
+            p.push(&format!("{:x}", first_char as usize));
+            p.push(term);
+            if fs::metadata(&p).is_ok() {
+                return Some(p);
+            }
+        }
+    }
+    None
+}
-- 
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