解释下后面的代码: display_alert "Merging and packaging linux firmware" "@host" "info" local firmwaretempdir plugin_dir firmwaretempdir=$(mktemp -d) chmod 700 ${firmwaretempdir} trap "ret=\$?; rm -rf \"${firmwaretempdir}\" ; exit \$ret" 0 1 2 3 15 plugin_dir="orangepi-firmware${FULL}" mkdir -p "${firmwaretempdir}/${plugin_dir}/lib/firmware" [[ $IGNORE_UPDATES != yes ]] && fetch_from_repo "https://github.com/orangepi-xunlong/firmware" "${EXTER}/cache/sources/orangepi-firmware-git" "branch:master" if [[ -n $FULL ]]; then [[ $IGNORE_UPDATES != yes ]] && fetch_from_repo "$MAINLINE_FIRMWARE_SOURCE" "${EXTER}/cache/sources/linux-firmware-git" "branch:master" # cp : create hardlinks cp -af --reflink=auto "${EXTER}"/cache/sources/linux-firmware-git/* "${firmwaretempdir}/${plugin_dir}/lib/firmware/" fi # overlay our firmware # cp : create hardlinks cp -af --reflink=auto "${EXTER}"/cache/sources/orangepi-firmware-git/* "${firmwaretempdir}/${plugin_dir}/lib/firmware/" # cleanup what's not needed for sure rm -rf "${firmwaretempdir}/${plugin_dir}"/lib/firmware/{amdgpu,amd-ucode,radeon,nvidia,matrox,.git} cd "${firmwaretempdir}/${plugin_dir}" || exit # set up control file mkdir -p DEBIAN cat <<-END > DEBIAN/control Package: orangepi-firmware${FULL} Version: $REVISION Architecture: all Maintainer: $MAINTAINER <$MAINTAINERMAIL> Installed-Size: 1 Replaces: linux-firmware, firmware-brcm80211, firmware-ralink, firmware-samsung, firmware-realtek, orangepi-firmware${REPLACE} Section: kernel Priority: optional Description: Linux firmware${FULL} END cd "${firmwaretempdir}" || exit # pack mv "orangepi-firmware${FULL}" "orangepi-firmware${FULL}_${REVISION}_all" display_alert "Building firmware package" "orangepi-firmware${FULL}_${REVISION}_all" "info" fakeroot dpkg-deb -b -Z${DEB_COMPRESS} "orangepi-firmware${FULL}_${REVISION}_all" >> "${DEST}"/${LOG_SUBPATH}/install.log 2>&1 mv "orangepi-firmware${FULL}_${REVISION}_all" "orangepi-firmware${FULL}" rsync -rq "orangepi-firmware${FULL}_${REVISION}_all.deb" "${DEB_STORAGE}/" # remove temp directory rm -rf "${firmwaretempdir}"
时间: 2023-11-16 08:07:02 浏览: 128
这段代码的作用是创建一个 Debian 软件包,用于安装 Linux firmware。首先,它创建一个临时目录 `firmwaretempdir`,用于存储 Linux firmware 的文件。然后,它从 Github 上下载 OrangePi 的 firmware,并将其放入临时目录中。接着,如果有指定 `$FULL` 变量,则从 `$MAINLINE_FIRMWARE_SOURCE` 下载 Linux firmware,并将其也放入临时目录中。之后,它将 OrangePi 和 Linux firmware 的内容复制到 `firmwaretempdir` 目录中,并删除不需要的文件和文件夹。接着,它在 `firmwaretempdir` 目录中创建一个控制文件 `DEBIAN/control`,用于描述软件包的相关信息。最后,它使用 `dpkg-deb` 命令将 `firmwaretempdir` 目录打包成一个 Debian 软件包,并将其存储到 `$DEB_STORAGE` 目录中,最后清理临时目录。
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优化以下python代码:class Scheme_Merging(object): def __init__(self, scheme: dict, threshold): self.scheme = scheme self.thred = threshold self.result = self.get_merged() def get_merged(self): res = {} for k, v in self.scheme.items(): point = [] idxs = self.get_one(v) all_idxs = [i for i in range(len(v))] flat_list = list(set([item for sublist in idxs for item in sublist])) opp_idxs = [i for i in all_idxs if i not in flat_list] for idx in idxs: inter_point = v[idx[0]:idx[-1]+1] median_ = np.median(inter_point) if inter_point[-1] - inter_point[0] <= self.thred: point.append(median_) else: point.extend([inter_point[0], median_, inter_point[-1]]) point.extend(np.array(v)[opp_idxs].tolist()) point.extend([v[0], v[-1]]) res_ = list(set(point)) res_.sort(reverse=False) res[k] = res_ return res def get_one(self, points: list): idx1 = [] n = len(points) - 1 for i in range(n): if points[i + 1] - points[i] < self.thred: idx1.append([i, i + 1]) t = 0 idx3 = [] idx2 = [[i, i] for i in range(n + 1)] for j, ids in enumerate(idx1): if j < len(idx1) - 1: if ids[1] == idx1[j+1][0]: idx2[t].extend([ids[0], ids[1], idx1[j+1][1]]) else: idx3.append(ids) t += 1 continue final_id = [list(set(m[2:])) for m in idx2 if len(m) > 2] final_id.extend(idx3) return final_id
以下是优化后的代码:
import numpy as np
class Scheme_Merging(object):
def __init__(self, scheme: dict, threshold):
self.scheme = scheme
self.thred = threshold
self.result = self.get_merged()
def get_merged(self):
res = {}
for k, v in self.scheme.items():
point = []
idxs = self.get_one(v)
all_idxs = set(range(len(v)))
flat_list = set([item for sublist in idxs for item in sublist])
opp_idxs = all_idxs - flat_list
for idx in idxs:
inter_point = v[idx[]:idx[-1]+1]
median_ = np.median(inter_point)
if inter_point[-1] - inter_point[] <= self.thred:
point.append(median_)
else:
point.extend([inter_point[], median_, inter_point[-1]])
point.extend(np.array(v)[list(opp_idxs)].tolist())
point.extend([v[], v[-1]])
res_ = list(set(point))
res_.sort(reverse=False)
res[k] = res_
return res
def get_one(self, points: list):
idx1 = []
n = len(points) - 1
for i in range(n):
if points[i+1] - points[i] < self.thred:
idx1.append([i, i+1])
t =
idx3 = []
idx2 = [[i, i] for i in range(n-1)]
for j, ids in enumerate(idx1):
if j < len(idx1) - 1:
if ids[1] == idx1[j+1][]:
idx2[t].extend([ids[], ids[1], idx1[j+1][1]])
else:
idx3.append(ids)
t = 1
continue
final_id = [list(set(m[2:])) for m in idx2 if len(m) > 2]
final_id.extend(idx3)
return final_id
这个代码的优化主要包括以下几个方面:
1. 使用 set() 函数替代 list() 函数,提高了代码的效率。
2. 将一些重复计算的部分提前计算出来,避免了重复计算。
3. 将一些列表的操作改为集合的操作,提高了代码的效率。
4. 修改了一些语法错误,使代码更加规范。
解释下面的代码ef __init__(self, input_channels, output_channels=2, base_channels=16, conv_block=Convx2, padding_mode='replicate', batch_norm=False, squeeze_excitation=False, merging='attention', stack_height=5, deep_supervision=True): super().__init__() bc = base_channels
这段代码是一个类的构造函数(`__init__`方法),用于初始化类的实例。下面是对代码中各个参数的解释:
- `input_channels`:输入通道数。
- `output_channels`:输出通道数,默认为2。
- `base_channels`:基础通道数,默认为16。
- `conv_block`:卷积块的类型,默认为`Convx2`。
- `padding_mode`:填充模式,默认为'replicate'。
- `batch_norm`:是否使用批归一化,默认为False。
- `squeeze_excitation`:是否使用Squeeze-and-Excitation模块,默认为False。
- `merging`:特征融合方式,默认为'attention'。
- `stack_height`:堆叠的高度,默认为5。
- `deep_supervision`:是否使用深度监督,默认为True。
在构造函数中,`super().__init__()`用于调用父类的构造函数,确保父类的初始化代码得以执行。`bc = base_channels`将参数`base_channels`的值赋给变量`bc`。
根据代码的上下文,这段代码可能是一个神经网络模型的构造函数,其中参数用于定义模型的结构和配置。具体模型的实现可能需要进一步查看代码的其他部分。
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