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0944acf90c
This is just a straight refactoring. Various ad hoc string_* functions that appeared in Common_utils have been renamed and placed in the String.* namespace. The old vs "new" functions are: string_prefix -> String.is_prefix string_suffix -> String.is_suffix string_find -> String.find replace_str -> String.replace string_nsplit -> String.nsplit string_split -> String.split string_lines_split -> String.lines_split string_random8 -> String.random8
59 lines
1.9 KiB
OCaml
59 lines
1.9 KiB
OCaml
(* virt-builder
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* Copyright (C) 2015 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*)
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open Common_gettext.Gettext
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open Common_utils
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open Utils
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open Printf
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type csum_t =
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| SHA256 of string
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| SHA512 of string
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let string_of_csum_t = function
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| SHA256 _ -> "sha256"
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| SHA512 _ -> "sha512"
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let string_of_csum = function
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| SHA256 c -> c
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| SHA512 c -> c
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let verify_checksum csum filename =
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let prog, csum_ref =
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match csum with
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| SHA256 c -> "sha256sum", c
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| SHA512 c -> "sha512sum", c
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in
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let cmd = sprintf "%s %s" prog (quote filename) in
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if verbose () then printf "%s\n%!" cmd;
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let lines = external_command cmd in
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match lines with
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| [] ->
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error (f_"%s did not return any output") prog
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| line :: _ ->
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let csum_actual = fst (String.split " " line) in
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if csum_ref <> csum_actual then
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error (f_"%s checksum of template did not match the expected checksum!\n found checksum: %s\n expected checksum: %s\nTry:\n - Use the '-v' option and look for earlier error messages.\n - Delete the cache: virt-builder --delete-cache\n - Check no one has tampered with the website or your network!")
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(string_of_csum_t csum) csum_actual csum_ref
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let verify_checksums checksums filename =
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List.iter (fun c -> verify_checksum c filename) checksums
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