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From ac730b1b14b29b4c9cfa4fb904da7ef508170327 Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Thu, 10 Feb 2022 14:37:37 +0100
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Subject: [PATCH] kernel-install: add new "inspect" verb, showing paths and
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 parameters we discovered
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(cherry picked from commit c73cf4184441d3cc37a5e2195938f07420ec38b7)
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Related: #2065061
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---
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 src/kernel-install/kernel-install | 29 +++++++++++++++++++++++------
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 1 file changed, 23 insertions(+), 6 deletions(-)
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diff --git a/src/kernel-install/kernel-install b/src/kernel-install/kernel-install
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index c42c40592a..b8099bd12c 100755
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--- a/src/kernel-install/kernel-install
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+++ b/src/kernel-install/kernel-install
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@@ -25,6 +25,7 @@ usage()
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     echo "Usage:"
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     echo "  $0 [OPTIONS...] add KERNEL-VERSION KERNEL-IMAGE [INITRD-FILE ...]"
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     echo "  $0 [OPTIONS...] remove KERNEL-VERSION"
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+    echo "  $0 [OPTIONS...] inspect"
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     echo "Options:"
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     echo "  -h, --help     Print this help"
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     echo "  -v, --verbose  Increase verbosity"
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@@ -72,13 +73,17 @@ else
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     [ $# -ge 1 ] && shift
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 fi
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-if [ $# -lt 1 ]; then
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-    echo "Error: not enough arguments" >&2
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-    exit 1
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-fi
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+if [ "$COMMAND" = "inspect" ]; then
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+    KERNEL_VERSION=""
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+else
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+    if [ $# -lt 1 ]; then
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+        echo "Error: not enough arguments" >&2
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+        exit 1
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+    fi
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-KERNEL_VERSION="$1"
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-shift
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+    KERNEL_VERSION="$1"
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+    shift
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+fi
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 layout=
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 initrd_generator=
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@@ -237,6 +242,18 @@ case "$COMMAND" in
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         fi
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         ;;
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+    inspect)
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+        echo "KERNEL_INSTALL_MACHINE_ID: $KERNEL_INSTALL_MACHINE_ID"
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+        echo "KERNEL_INSTALL_ENTRY_TOKEN: $KERNEL_INSTALL_ENTRY_TOKEN"
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+        echo "KERNEL_INSTALL_BOOT_ROOT: $KERNEL_INSTALL_BOOT_ROOT"
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+        echo "KERNEL_INSTALL_LAYOUT: $KERNEL_INSTALL_LAYOUT"
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+        echo "KERNEL_INSTALL_INITRD_GENERATOR: $KERNEL_INSTALL_INITRD_GENERATOR"
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+        echo "ENTRY_DIR_ABS: $KERNEL_INSTALL_BOOT_ROOT/$ENTRY_TOKEN/\$KERNEL_VERSION"
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+
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+        # Assert that ENTRY_DIR_ABS actually matches what we are printing here
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+        [ "${ENTRY_DIR_ABS%/*}" = "$KERNEL_INSTALL_BOOT_ROOT/$ENTRY_TOKEN" ] || { echo "Assertion didn't pass." >&2; exit 1; }
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+
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+        ;;
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     *)
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         echo "Error: unknown command '$COMMAND'" >&2
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         exit 1