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install solana

# version可以替换
sh -c "$(curl -sSfL https://release.solana.com/v1.16.25/install)"

用户持有solana token时，需要单独创建一个账户，这个账户的mint为实际的spl-token地址，合约参数一般使用的是用户spl-token的账户地址，而不是spl-token的地址

// PROGRAM_ID 可以通过 solana address -k target/deploy/PROGRAM_NAME-keypair.json得到

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// swap a, b
a = a ^ b
b = a ^ b
a = a ^ b

x & (-x) 保留了x的最后变的1，其余数据全部按位取反
x & (x-1) 去除了x二进制中最后边的1，其余位保持不变

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# initialize wasmd configuration files
wasmd init localnet

# setup local node
wasmcli config chain-id $(cat ~/.wasmd/config/genesis.json | jq .chain_id)
wasmcli config trust-node true
wasmcli config node http://localhost:26657
wasmcli config output json
wasmcli config indent true
wasmcli config broadcast-mode block

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• aes

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1. Blocking waiting for file lock on package cache: 删除.cargo/.package-cache文件,重新运行命令(先检查文件是否为空)

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ubuntu@ubuntu-XPS-13-9360:~/flipper$ cargo contract build --verbose
 [1/4] Collecting crate metadata
 [2/4] Building cargo project
+ "rustc" "--print" "sysroot"
+ "rustc" "--print" "target-list"
+ "/home/ubuntu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin/cargo" "rustc" "-p" "alloc" "--release" "--manifest-path" "/tmp/cargo-xbuild.s1BD8UrsqVTC/Cargo.toml" "--target" "wasm32-unknown-unknown" "-v" "--" "-Z" "force-unstable-if-unmarked"
    Updating `git://mirrors.ustc.edu.cn/crates.io-index` index
   Compiling compiler_builtins v0.1.27
   Compiling core v0.0.0 (/home/ubuntu/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcore)
     Running `rustc --crate-name build_script_build /home/ubuntu/.cargo/registry/src/mirrors.ustc.edu.cn-61ef6e0cd06fb9b8/compiler_builtins-0.1.27/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C opt-level=z -Cembed-bitcode=no -C overflow-checks=on --cfg 'feature="compiler-builtins"' --cfg 'fea

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ubuntu@ubuntu-XPS-13-9360:~/flipper$ cargo test --verbose
   Compiling proc-macro2 v1.0.12
   Compiling unicode-xid v0.2.0
   Compiling syn v1.0.19
   Compiling serde v1.0.110
     Running `rustc --crate-name build_script_build --edition=2018 /home/ubuntu/.cargo/registry/src/mirrors.ustc.edu.cn-61ef6e0cd06fb9b8/syn-1.0.19/build.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=384ab2613018b9fa -C extra-filename=-384ab2613018b9fa --out-dir /home/ubuntu/flipper/target/debug/build/syn-384ab2613018b9fa -L dependency=/home/ubuntu/flipper/target/debug/deps --cap-lints allow`
     Running `rustc --crate-name build_script_build /home/ubuntu/.cargo/registry/src/mirrors.u

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Github Related

• travis

Shell

• percol
• peco
• tree

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delegated proxy

## set a socks to https proxy.
delegated -P$1 SERVER=https SOCKS=127.0.0.1:1080

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FlyCheck

keyboard	description
Ctrl + c => ! => l	pop up a list of errors in the current buffer

Org-mode

Go-mode