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1 |
foo, bar, baz = 1, 2, 3 |
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def swap(x,y) return y, x # 複数の値を返す end a, b = swap(a, b) |
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t = 12345, 54321, 'hello!' |
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def foo(): return 100, 'Hello' |
カンマ , で区切ることでタプルとなる。丸括弧 ( ) は必ずしも必須の構文ではない。可読性向上やネスト構造のばあいに ( ) が必要となる。
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print "debug\n" if $DEBUG |
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odd_list = [x for x in range(100) if x % 2] |
0～99までのリストの中から x % 2 が 真 すなわち奇数のリストを抽出する。
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result = "PASS" if score >= 60 else "FAIL" |
点数(score)が60点以上は合格(PASS)、さもなければ不合格(FAIL)。
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ruby ../asp3/tecsgen/tecsgen.rb ../asp3/sample/sample1.cdl -R -I. -I../asp3/include -I../asp3/target/raspberrypi_pico_gcc -I../asp3/arch/arm_m_gcc/rp2040 -I../asp3/arch/arm_m_gcc/common -I../asp3/arch/gcc -I../asp3 -I../asp3/sample -I./gen -I../asp3/tecs_kernel --cpp "arm-none-eabi-gcc -DUSE_TIM_AS_HRT -DTOPPERS_CORTEX_M0PLUS -D__TARGET_ARCH_THUMB=3 -I. -I../asp3/include -I../asp3/target/raspberrypi_pico_gcc -I../asp3/arch/arm_m_gcc/rp2040 -I../asp3/arch/arm_m_gcc/common -I../asp3/arch/gcc -I../asp3 -I../asp3/sample -I./gen -I../asp3/tecs_kernel -D TECSGEN -E" -g ./gen tecsgen version 1.7.0 Copyright(c) 2008-2019, TOPPERS project. All rights reserved. make[1]: Entering directory '/home/JaneDoe/toppers/build' ruby ../asp3/cfg/cfg.rb --pass 1 --kernel asp -I. -I../asp3/include -I../asp3/target/raspberrypi_pico_gcc -I../asp3/arch/arm_m_gcc/rp2040 -I../asp3/arch/arm_m_gcc/common -I../asp3/arch/gcc -I../asp3 -I../asp3/sample -I./gen -I../asp3/tecs_kernel --api-table ../asp3/kernel/kernel_api.def --symval-table ../asp3/kernel/kernel_sym.def --symval-table ../asp3/arch/arm_m_gcc/common/core_sym_v6m.def \ -M objs/cfg1_out_c.d ../asp3/target/raspberrypi_pico_gcc/target_kernel.cfg ../asp3/sample/sample1.cfg /home/JaneDoe/.rbenv/versions/3.1.2/lib/ruby/3.1.0/csv.rb:1433:in `initialize': no implicit conversion of Hash into String (TypeError) from /home/JaneDoe/.rbenv/versions/3.1.2/lib/ruby/3.1.0/csv.rb:1433:in `open' from /home/JaneDoe/.rbenv/versions/3.1.2/lib/ruby/3.1.0/csv.rb:1433:in `open' from /home/JaneDoe/toppers/asp3/cfg/pass1.rb:180:in `block in ReadSymvalTable' from /home/JaneDoe/toppers/asp3/cfg/pass1.rb:174:in `each' from /home/JaneDoe/toppers/asp3/cfg/pass1.rb:174:in `ReadSymvalTable' from /home/JaneDoe/toppers/asp3/cfg/pass1.rb:909:in `Pass1' from ../asp3/cfg/cfg.rb:712:in `<main>' make[1]: *** [Makefile:358: cfg1_out.timestamp] Error 1 make[1]: Leaving directory '/home/JaneDoe/toppers/build' make: *** [Makefile:224: all] Error 2 |
コンフィギュレータ（ITRONのタスクやメールボックスなどの静的生成）が失敗する。
⇒ make が失敗する。
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$ rbenv install 2.7.2 Downloading ruby-2.7.2.tar.bz2... -> https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.2.tar.bz2 Installing ruby-2.7.2... BUILD FAILED (Ubuntu 22.04 using ruby-build 20220630-4-gda94a64) Inspect or clean up the working tree at /tmp/ruby-build.20220707134146.17019.dV0Cyf Results logged to /tmp/ruby-build.20220707134146.17019.log Last 10 log lines: linking shared-object fiddle.so make[2]: Leaving directory '/tmp/ruby-build.20220707134146.17019.dV0Cyf/ruby-2.7.2/ext/fiddle' ripper.y: At top level: cc1: note: unrecognized command-line option ‘-Wno-self-assign’ may have been intended to silence earlier diagnostics cc1: note: unrecognized command-line option ‘-Wno-parentheses-equality’ may have been intended to silence earlier diagnostics cc1: note: unrecognized command-line option ‘-Wno-constant-logical-operand’ may have been intended to silence earlier diagnostics linking shared-object ripper.so make[2]: Leaving directory '/tmp/ruby-build.20220707134146.17019.dV0Cyf/ruby-2.7.2/ext/ripper' make[1]: Leaving directory '/tmp/ruby-build.20220707134146.17019.dV0Cyf/ruby-2.7.2' make: *** [uncommon.mk:295: build-ext] Error 2 |
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 |
$ sudo apt show libssl-dev Package: libssl-dev Version: 3.0.2-0ubuntu1.6 Priority: optional Section: libdevel Source: openssl Origin: Ubuntu Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com> Original-Maintainer: Debian OpenSSL Team <pkg-openssl-devel@alioth-lists.debian.net> Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 7959 kB Depends: libssl3 (= 3.0.2-0ubuntu1.6) Suggests: libssl-doc Conflicts: libssl1.0-dev Homepage: https://www.openssl.org/ Download-Size: 2081 kB APT-Manual-Installed: yes APT-Sources: http://ports.ubuntu.com/ubuntu-ports jammy-updates/main armhf Packages Description: Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto. N: There is 1 additional record. Please use the '-a' switch to see it |
Ubuntu 22.04 には OpenSSL 3 しか存在しないため Ruby 3.1 未満のバージョンはビルドできない問題
Apache (httpd) から rbenvでインストールした ruby に対して PATH を通したい。
shebang "#!/usr/bin/env ruby" で ruby を参照できるようにしたい。
.htaccess に下記の行を追加する。
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1 |
SetEnv PATH /opt/rbenv/shims:${PATH} |
Amazon Linux 2 の Extras Library (amazon-linux-extras) でパッケージ管理している Ruby を 2.6系 から 3.0系 にアップデートした記録。
|
1 |
$ gem update --system |
|
1 |
$ gem install bundle |
|
1 |
$ gem update bundle |
rbenv環境でinstallやgemを使った後はrehashを実行する必要がある。
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1 2 3 4 5 6 |
$ gem install mgem Fetching: mgem-0.1.7.gem (100%) Successfully installed mgem-0.1.7 Parsing documentation for mgem-0.1.7 Installing ri documentation for mgem-0.1.7 1 gem installed |