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From: Christoph Heiss <c.heiss@proxmox.com>
To: pve-devel@lists.proxmox.com
Subject: [pve-devel] [PATCH installer 3/4] fetch-answer: partition: also search for exact-matching partition label
Date: Fri, 18 Oct 2024 13:59:39 +0200	[thread overview]
Message-ID: <20241018115943.813243-4-c.heiss@proxmox.com> (raw)
In-Reply-To: <20241018115943.813243-1-c.heiss@proxmox.com>

While some filesystems - such as FAT(32) - might not supported/allow
mixed-case labels, some implementations still handle them correctly,
such as Linux. Thus, also search for that variant.

Signed-off-by: Christoph Heiss <c.heiss@proxmox.com>
---
 .../src/fetch_plugins/partition.rs               | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/proxmox-fetch-answer/src/fetch_plugins/partition.rs b/proxmox-fetch-answer/src/fetch_plugins/partition.rs
index 4472922..cbfe2d5 100644
--- a/proxmox-fetch-answer/src/fetch_plugins/partition.rs
+++ b/proxmox-fetch-answer/src/fetch_plugins/partition.rs
@@ -43,12 +43,22 @@ fn path_exists_logged(file_name: &str, search_path: &str) -> Option<PathBuf> {
     }
 }
 
-/// Searches for upper and lower case existence of the partlabel in the search_path
+/// Searches for the exact case, upper and finally lower case existence of the partlabel in the
+/// search_path, in that order.
+///
+/// While some filesystems - such as FAT(32) - might not supported/allow mixed-case labels, some
+/// implementations still handle them correctly, such as Linux. Thus, also search for that variant
+/// first.
 ///
 /// # Arguments
-/// * `partlabel_source` - Partition Label, used as upper and lower case
+/// * `partlabel_source` - Partition Label, used for matching, in the exact, upper and lower case
 /// * `search_path` - Path where to search for the partition label
 fn scan_partlabels(partlabel: &str, search_path: &str) -> Result<PathBuf> {
+    if let Some(path) = path_exists_logged(partlabel, search_path) {
+        info!("Found partition with label '{partlabel}'");
+        return Ok(path);
+    }
+
     let partlabel_upper_case = partlabel.to_uppercase();
     if let Some(path) = path_exists_logged(&partlabel_upper_case, search_path) {
         info!("Found partition with label '{partlabel_upper_case}'");
@@ -61,7 +71,7 @@ fn scan_partlabels(partlabel: &str, search_path: &str) -> Result<PathBuf> {
         return Ok(path);
     }
 
-    bail!("Could not detect upper or lower case labels for '{partlabel}'");
+    bail!("Could not find partition for label '{partlabel}'");
 }
 
 /// Will search and mount a partition/FS labeled PARTLABEL (proxmox-ais) in lower or uppercase
-- 
2.46.0



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  parent reply	other threads:[~2024-10-18 11:59 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-18 11:59 [pve-devel] [PATCH installer 0/4] auto-install-assistant: allow specifying 'fetch-from' " Christoph Heiss
2024-10-18 11:59 ` [pve-devel] [PATCH installer 1/4] auto-install-assistant: add new parameter to specify " Christoph Heiss
2024-10-18 11:59 ` [pve-devel] [PATCH installer 2/4] fetch-answer: refactor cli argument parsing Christoph Heiss
2024-10-18 11:59 ` Christoph Heiss [this message]
2024-10-18 11:59 ` [pve-devel] [PATCH installer 4/4] fetch-answer: use partition label from fetch config instead of hardcoded Christoph Heiss

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